HECLA MINING COMPANY AND ALEXCO RESOURCE CORP. ARRANGEMENT AGREEMENT Dated July 4, 2022

ARTICLE 1 INTERPRETATION

Definitions

Interpretation Not Affected by Headings

Number and Gender

Date for Any Action

Statutory References

Currency

Accounting Matters

Knowledge

Disclosure Letter

Schedules

Arrangement

Interim Order

U.S. Securities Law Matters

Alexco Meeting

Alexco Circular

Final Order

Court Proceedings

Arrangement and Effective Date

Payment of Consideration

Announcement and Shareholder Communications

Withholding Taxes

Representations and Warranties

Survival of Representations and Warranties

Representations and Warranties

Survival of Representations and Warranties

Covenants of Alexco Regarding the Conduct of Business

Additional Covenants of Alexco

Covenants of Hecla Regarding the Conduct of Business

Additional Covenants of Hecla

Mutual Covenants of the Parties Relating to the Arrangement

Pre-Acquisition Reorganization

Regulatory Approvals

Mutual Conditions Precedent

Additional Conditions Precedent to the Obligations of Hecla

Additional Conditions Precedent to the Obligations of Alexco

Satisfaction of Conditions

Notice of Breach

Alexco Non-Solicitation

Expenses and Termination Fees

Access to Information; Confidentiality

Insurance and Indemnification

Term

Termination

Amendment

Waiver

Notices

Governing Law

Injunctive Relief

Time of Essence

Entire Agreement, Binding Effect and Assignment

Severability

Further Assurances

No Third Party Beneficiaries

Mutual Interest

Counterparts, Execution

Hecla and Alexco wish to enter into a transaction providing for the acquisition by Hecla of all of the Alexco Shares.

Hecla and Alexco intend to carry out the transactions contemplated by this Agreement by way of a plan of arrangement under the provisions of the BCBCA.

Hecla has entered into the Alexco Voting Agreements with all of the Alexco Locked-Up Shareholders, pursuant to which each of the Alexco Locked-Up Shareholders have agreed to vote their Alexco Shares in favour of the Alexco Resolution on the terms and subject to the conditions set forth in the Alexco Voting Agreements.

Definitions

any joint venture, earn-in right, royalty grant, lease, license, acquisition, sale or transfer, direct or indirect, in a single transaction or a series of related transactions, of:

the assets of Alexco and/or any of its subsidiaries that, individually or in the aggregate, constitute 20% or more of the fair market value of the consolidated assets of Alexco and its subsidiaries, taken as a whole, or contribute 20% or more of the consolidated revenue of Alexco and its subsidiaries, taken as a whole; or

20% or more of the issued and outstanding voting or equity securities (and/or securities convertible into, or exchangeable or exercisable for voting or equity securities) of Alexco or any of its subsidiaries;

any take-over bid, tender offer, exchange offer, sale or treasury issuance of securities or other transaction that, if consummated, would result in such person beneficially owning, directly or indirectly, 20% or more of any class of the issued and outstanding voting or equity securities (and/or securities convertible into, or exchangeable or exercisable for voting or equity securities) of Alexco or any of its subsidiaries;

a plan of arrangement, merger, amalgamation, consolidation, share exchange, share issuance, business combination, reorganization, recapitalization, liquidation, dissolution, share reclassification, winding-up or other similar transaction or series of transactions involving Alexco or any of its subsidiaries; or

any other transaction, the consummation of which could reasonably be expected to impede, interfere with, prevent or delay the transactions contemplated by this Agreement or the Arrangement.

the public announcement of the execution of this Agreement or the transactions contemplated hereby or the performance of any obligation hereunder;

any changes in general political, economic or financial conditions in Canada;

any change or proposed change in any applicable Laws or the interpretation, application or non-application of any applicable Laws by any Governmental Entity;

any generally applicable changes in IFRS;

any natural disaster, armed hostilities, war or act of terrorism;

any epidemic, pandemic or outbreak of illness (including COVID-19 and any COVID-19 Measures) or health crisis or public health event, or any worsening of any of the foregoing;

conditions generally affecting the mining industry;

any change in currency exchange, interest or inflation rates;

any change in the market price of silver; or

any decrease in the market price or any decline in the trading volume of Alexco Shares on the TSX or NYSE American (it being understood that any cause underlying such change in market price or trading volume may be taken into account in determining whether a Alexco Material Adverse Effect has occurred),

involving current and future aggregate actual or contingent obligations to pay (including advances) to or by Alexco or any of its subsidiaries of more than $100,000 in any one year or $250,000 (but, for purposes of Section 5.1, $100,000) during the remaining term of such Contract (including, if applicable, any renewals thereof);

relating to current or future indebtedness for borrowed money of $250,000 or more, or pursuant to which any property or asset of Alexco or any of its subsidiaries is subject to a Lien;

restricting the incurrence of indebtedness by Alexco or any of its subsidiaries or (including by requiring the granting of an equal and rateable Lien) the incurrence of any Liens on any properties or assets of Alexco or any of its subsidiaries;

relating to litigation or settlement thereof which gives rise to or could give rise to any actual or contingent obligations or entitlements of Alexco or any of its subsidiaries which have not been fully satisfied prior to the date of this Agreement, other than obligations or entitlements, individually or together, of not more than $100,000;

with any Governmental Entity or First Nation;

which creates an exclusive dealing arrangement or right of first offer or limits or purports to limit the ability of Alexco or any of its subsidiaries to engage in any line of business, compete with any person or in any geographic area or during any period of time;

which relates to any pending lease, acquisition or disposition, directly or indirectly, of property, including Alexco Concessions or Alexco Lands;

providing for any indemnification or any guarantee by Alexco or any of its subsidiaries in excess of $100,000 or which is not expressly capped or limited;

in respect of any joint venture, partnership, strategic alliance or similar arrangement or any shareholders’ agreement;

involving a sharing of profits, losses, costs or liabilities by Alexco or any of its subsidiaries with any third party that would result in one or more third parties being entitled to more than $100,000 in the aggregate;

the termination of which would reasonably be expected to have a Alexco Material Adverse Effect;

for a royalty, metals streaming, long term offtake or similar economic arrangement in respect of any Alexco Concession;

any standstill or similar Contract currently restricting the ability of Alexco or any of its subsidiaries to offer to purchase or purchase the assets or equity securities of another person; and

with a term or commitment to or by a Alexco or any of its subsidiaries that may reasonably extend beyond one year and which cannot be terminated without cost or penalty in excess of $100,000 on less than 60 days’ notice.

the public announcement of the execution of this Agreement or the transactions contemplated hereby or the performance of any obligation hereunder;

any changes in general political, economic or financial conditions in Canada;

any change or proposed change in any applicable Laws or the interpretation, application or non-application of any applicable Laws by any Governmental Entity;

any generally applicable changes in U.S. GAAP;

any natural disaster, war, armed hostilities or act of terrorism;

any epidemic, pandemic or outbreak of illness (including COVID-19 and any COVID-19 Measures) or health crisis or public health event, or any worsening of any of the foregoing;

conditions generally affecting the mining industry;

any change in currency exchange, interest or inflation rates;

any change in the market price of silver; or

any decrease in the market price or any decline in the trading volume of Hecla Shares on the NYSE (it being understood that any cause underlying such change in market price or trading volume may be taken into account in determining whether a Hecla Material Adverse Effect has occurred),

Interpretation Not Affected by Headings

Number and Gender

Date for Any Action

Statutory References

Currency

Accounting Matters

Knowledge

Disclosure Letter

Schedules

Arrangement

Interim Order

for the class of persons to whom notice is to be provided in respect of the Arrangement and the Alexco Meeting and for the manner in which such notice is to be provided;

for confirmation of the record date for the Alexco Meeting (which date shall be fixed and filed by Alexco in consultation with Hecla, acting reasonably);

that the requisite approval for the Alexco Resolution shall be:

66²⁄₃% of the votes cast on the Alexco Resolution by Alexco Shareholders present in person or represented by proxy at the Alexco Meeting, with each Alexco Share entitling a Alexco Shareholder to one vote;

66²⁄₃% of the votes cast on the Alexco Resolution by Alexco Securityholders present in person or represented by proxy at the Alexco Meeting, voting together as a single class, with an Alexco Shareholder, a holder of Alexco Options, a holder of Alexco RSUs and a holder of Alexco DSUs being entitled to one vote for each Alexco Share, Alexco Option, Alexco RSU and Alexco DSU held; and

a simple majority of the votes cast on the Alexco Resolution by Alexco Shareholders present in person or represented by proxy at the Alexco Meeting (excluding the votes cast by any Alexco Shareholders required to be excluded pursuant to MI 61-101);

that, in all other respects, other than as ordered by the Court, the terms, restrictions and conditions of Alexco’s constating documents, including quorum requirements and all other matters, shall apply in respect of the Alexco Meeting;

for the grant of Dissent Rights to the Alexco Shareholders who are registered holders of Alexco Shares;

for the notice requirements with respect to the presentation of the application to the Court for the Final Order;

that the Alexco Meeting may be adjourned or postponed from time to time by the Alexco Board subject to the terms of this Agreement without the need for additional approval of the Court;

that the record date for Alexco Securityholders entitled to receive notice of and vote at the Alexco Meeting will not change in respect of any adjourned or postponed Alexco Meeting;

for the notice requirement with respect to the application to the Court for the Final Order;

that the deadline for the submission of proxies by Alexco Shareholders for the Alexco Meeting shall be 48 hours (excluding Saturdays, Sundays and statutory holidays in Vancouver, British Columbia) prior to the Alexco Meeting, subject to waiver by Alexco in accordance with the terms of this Agreement;

that it is the Parties’ intention to rely on the Section 3(a)(10) Exemption and similar exemptions from applicable securities Laws of any state of the United States with respect to the issuance of Hecla Shares to Alexco Shareholders pursuant to the Arrangement, subject to and conditioned on the Court’s determination that the Arrangement is substantively and procedurally fair to Alexco Shareholders and based on the Court’s approval of the Arrangement following a hearing at which the Alexco Shareholders by appear and be heard;

that each Alexco Shareholder will have the right to appear before the Court at the hearing of the Court to give approval of the Arrangement so long as they enter an appearance within a reasonable time in accordance with the procedures set out in the Interim Order; and

for such other matters as Hecla may reasonably require subject to obtaining the prior written consent of Alexco, such consent not to be unreasonably withheld or delayed.

U.S. Securities Law Matters

the procedural and substantive fairness of the terms and conditions of the Arrangement will be subject to the approval of the Court;

the Court will be advised as to the intention of the Parties to rely on the Section 3(a)(10) Exemption prior to the hearing required to approve the procedural and substantive fairness of the terms and conditions of the Arrangement to the Alexco Shareholders;

the Court will be required to satisfy itself as to the procedural and substantive fairness of the terms and conditions of the Arrangement to the Alexco Shareholders;

Alexco will ensure that each Alexco Shareholder will be given adequate notice advising them of their right to attend the hearing of the Court to approve the procedural and substantive fairness of the terms and conditions of the Arrangement and providing them with sufficient information necessary for them to exercise that right;

Alexco Shareholders will be advised that the Hecla Shares issued pursuant to the Arrangement have not been registered under the U.S. Securities Act and will be issued by Hecla in reliance on the Section 3(a)(10) Exemption;

the Interim Order will specify that each Alexco Shareholder will have the right to appear before the Court at the hearing of the Court to give approval of the Arrangement so long as they enter an appearance within a reasonable time in accordance with the procedures set out in the Interim Order and in accordance with the requirements of the Section 3(a)(10) Exemption;

the Court will hold a hearing before approving the procedural and substantive fairness of the terms and conditions of the Arrangement to the Alexco Shareholders; and

the Final Order will expressly state that the Arrangement is approved by the Court as being procedurally and substantively fair to the Alexco Shareholders, and the Final Order shall include a statement to substantially the following effect:

Alexco Meeting

Subject to the terms of this Agreement, Alexco shall convene and conduct the Alexco Meeting in accordance with the Interim Order, Alexco’s notice of articles and articles and applicable Law as soon as reasonably practicable, and in any event on or before September 2, 2022 (and, in that regard, Alexco shall abridge, as

Subject to the terms of this Agreement, Alexco shall use its commercially reasonable efforts to solicit proxies (i) in favour of the approval of the Alexco Resolution and take all other action necessary or desirable to secure the approval of the Alexco Resolution and all other matters to be brought before the Alexco Meeting intended to facilitate and complete the transactions contemplated by this Agreement, and (ii) against any resolution submitted by any Alexco Shareholder that is inconsistent with the Alexco Resolution and the completion of the transactions contemplated by this Agreement, including, if so requested by Hecla, using proxy solicitation services; provided that such solicitor shall be determined by Alexco in consultation with Hecla, acting reasonably.

Alexco shall provide Hecla with copies of or access to information regarding the Alexco Meeting generated by any proxy solicitation services firm engaged by Alexco, as requested from time to time by Hecla.

Alexco shall give notice to Hecla of the Alexco Meeting and allow Hecla’ Representatives and legal counsel to attend the Alexco Meeting.

Alexco shall advise Hecla as Hecla may reasonably request, and at least on a daily basis on each of the last ten Business Days prior to the date of the Alexco Meeting, as to the aggregate tally of the proxies received by Alexco in respect of the Alexco Resolution and any other matters properly brought before the Alexco Meeting.

Alexco will promptly advise Hecla of any communication (orally or in writing) from any Alexco Shareholder in opposition to the Arrangement.

Alexco will promptly advise Hecla of any written notice of dissent or purported exercise by any Alexco Shareholder of Dissent Rights received by Alexco in relation to the Alexco Resolution and any withdrawal of Dissent Rights received by Alexco. Alexco shall provide Hecla with an opportunity to review and comment on any written communications sent by or on behalf of Alexco to any Alexco Shareholder who is exercising or purporting to exercise Dissent Rights in relation to the Alexco Resolution and shall not make any payment or settlement offer, or agree to any payment or settlement prior to the Effective Time with respect to Dissent Rights without the prior written consent of Hecla.

Alexco shall, upon the request from time to time by Hecla, promptly deliver to Hecla (i) lists of all registered Alexco Shareholders and other security holders of Alexco, showing the name and address of each holder and the number of Alexco Shares or other securities of Alexco held by each such holder, and securities positions, and (ii) from time to time, at the request of Hecla, updated or supplemental lists setting out any changes from the list(s) referred to in clause (i) of this Section 2.4(h).

Alexco shall not, except as required for quorum purposes, as required by Law or as otherwise permitted under this Agreement, adjourn, postpone or cancel (or propose for adjournment, postponement or cancellation), or fail to call, the Alexco Meeting without Hecla’s prior written consent, which consent shall not be unreasonably withheld, conditioned or delayed, other than as expressly required or permitted in accordance with Section 7.2.11.

Alexco shall not change the record date for the Alexco Shareholders entitled to vote at the Alexco Meeting in connection with any adjournment or postponement of the Alexco Meeting unless required by Law.

Alexco shall not, without the prior written consent of Hecla, waive the deadline for the submission of proxies by Alexco Shareholders for the Alexco Meeting.

Alexco shall promptly advise Hecla of any communication (written or oral) received by Alexco from the TSX or the NYSE American, any of the Securities Authorities or any other Governmental Entity in connection with the Alexco Meeting.

Alexco Circular

Subject to Hecla complying with Section 2.5(c), Alexco shall (i) as promptly as reasonably practicable following the date of this Agreement, prepare the Alexco Circular (together with any other documents required by applicable Laws in connection with the Alexco Meeting) in compliance with all applicable Laws, and (ii) as promptly as reasonably practicable after obtaining the Interim Order file or furnish, as applicable, the Alexco Circular with respect to the Alexco Meeting in all jurisdictions where the same is required to be filed or furnished and mail the same as required by the Interim Order and in accordance with all applicable Laws in all jurisdictions where the same is required to be mailed (it being understood that Alexco will so file, furnish and mail the Alexco Circular by no later than the close of business on the Mailing Deadline). If necessary, Alexco shall, in consultation with Hecla abridge the timing contemplated by NI 54-101, as provided in section 2.20 thereof (provided, however, that for greater certainty, the foregoing obligation shall not extend to the making of an application for a waiver or exemption from the requirements of NI 54-101).

Alexco shall ensure that the Alexco Circular complies in all material respects with all applicable Laws and the Interim Order, and, without limiting the generality of the foregoing, that the Alexco Circular shall not contain any misrepresentation (except that Alexco shall not be responsible for any information included in the Alexco Circular relating to Hecla and its affiliates that was provided by Hecla expressly for inclusion in the Alexco Circular pursuant to Section 2.5(c)) and shall provide Alexco Shareholders with information in sufficient detail to permit them to form a reasoned judgment concerning the matters to be placed before them at the Alexco Meeting. The Alexco Circular shall include (a) the Alexco Board Recommendation, (b) a statement that each of the Alexco Locked-Up Shareholders has signed a Alexco Voting Agreement, pursuant to which they have agreed to,

Hecla shall furnish to Alexco on a timely basis such information regarding Hecla as may be required by Law or reasonably required by Alexco in the preparation of the Alexco Circular, and Hecla shall ensure that such information does not contain any misrepresentation concerning Hecla.

Hecla shall use commercially reasonable efforts to obtain any necessary consents from its auditor and any other advisors to the use of any financial, technical or other expert information required to be included in the Alexco Circular and to the identification in the Alexco Circular of each such advisor.

Hecla and its legal counsel shall be given a reasonable opportunity to review and comment on drafts of the Alexco Circular, prior to the Alexco Circular being printed, mailed to Alexco Securityholders and filed with any Governmental Entity, and reasonable consideration shall be given to any comments made by Hecla and its legal counsel, provided that all information relating solely to Hecla included in the Alexco Circular, and any information describing the terms and conditions of this Agreement, the Alexco Voting Agreements or the Plan of Arrangement, shall be in form and content approved in writing by Hecla, acting reasonably. Alexco shall provide Hecla with final copies of the Alexco Circular prior to its mailing to the Alexco Securityholders.

Each of the Parties shall each promptly notify the other if at any time before the Effective Date it becomes aware (in the case of Hecla, only in respect of information relating to Hecla) that the Alexco Circular contains a misrepresentation, or otherwise requires an amendment or supplement to the Alexco Circular, and the Parties shall co-operate in the preparation of any amendment or supplement to the Alexco Circular, as required or appropriate, and Alexco shall promptly mail or otherwise publicly disseminate any amendment or supplement to the Alexco Circular to Alexco Securityholders and, if required by the Court or applicable Laws, file the same with any Governmental Entity and as otherwise required.

Alexco shall promptly advise Hecla of any communication (written or oral) received by Alexco from the TSX and the NYSE American, any of the Securities Authorities or any other Governmental Entity in connection with the Alexco Circular.

Final Order

Court Proceedings

Arrangement and Effective Date

Closing of the Arrangement shall occur, and the Arrangement shall become effective, on the fifth Business Day following the satisfaction or waiver of all conditions to completion of the Arrangement set out in Article 6 (excluding any conditions that, by their terms, cannot be satisfied until the Effective Date, but subject to the satisfaction or, where not prohibited, waiver of those conditions as of the Effective Date by the applicable Party or Parties for whose benefit such conditions exist) or on such other time and date as may be agreed upon by the Parties in writing, and the Arrangement shall be effective at the Effective Time on the Effective Date and will have all of the effects provided by applicable Laws. From and after the Effective Time, the Plan of Arrangement shall have effect as provided by applicable Law, including the BCBCA.

The closing of the Arrangement will take place (i) by the exchange of documents by PDF or other electronic means, or (ii) at such other place as may be agreed to by the Parties, in each case on the Effective Date at such time as may be agreed to by the Parties, acting reasonably.

Payment of Consideration

Announcement and Shareholder Communications

issue any press release or otherwise make public statements with respect to this Agreement or the Plan of Arrangement without the consent of the other Parties (which consent shall not be unreasonably withheld, conditioned or delayed); or

make any filing with any Governmental Entity with respect to this Agreement or the Plan of Arrangement without the consent of the other Parties (which consent shall not be unreasonably, withheld, conditioned or delayed).

Withholding Taxes

Representations and Warranties

Board Recommendation. The Alexco Board, after consultation with its financial and legal advisors, and after receiving the unanimous recommendation of the Alexco Special Committee, has determined unanimously that the Plan of Arrangement is fair to the Alexco Shareholders and is in the best interests of Alexco and has resolved unanimously to recommend to the Alexco Securityholders that they vote in favour of the Alexco Resolution (such determination and recommendation, the “Alexco Board Recommendation”)

Fairness Opinion. The Alexco Board has received the oral opinion of Cormark Securities Inc., which opinion has not been modified, amended, qualified or withdrawn, to the effect that, as of the date of this Agreement, and subject to the assumptions, limitations and qualifications set forth therein, the Consideration to be received pursuant to the Plan of Arrangement by the Alexco Shareholders is fair, from a financial point of view, to such Alexco Shareholders (the “Alexco Fairness Opinion”).

Organization and Qualification. Alexco and each of its subsidiaries is a corporation duly incorporated or an entity duly created and validly existing under all applicable Laws of its jurisdiction of incorporation, continuance or creation and has all necessary corporate power and capacity to own its property and assets as now owned and to carry on its business as it is now being conducted. Alexco and each of its subsidiaries is duly qualified to carry on business and is in good standing in each jurisdiction in which the character of its properties and assets owned, leased, licensed or otherwise held, or the nature of its activities makes such qualification necessary, except where the failure to be so registered or in good standing would not reasonably be expected to have a Alexco Material Adverse Effect.

Authority Relative to this Agreement. Alexco has the requisite corporate power and capacity to enter into this Agreement and (subject to obtaining the Interim Order, the Final Order and the Alexco Securityholder Approval) to perform its obligations hereunder. The execution and delivery of this Agreement by Alexco and the performance by Alexco of its obligations under this Agreement have been duly authorized by the Alexco Board and no other corporate proceedings on the part of Alexco are necessary to authorize the execution and delivery of this Agreement or the performance by Alexco of its obligations under this Agreement or the completion of the Arrangement pursuant to the Plan of Arrangement, other than the Interim Order, the Final Order, approval of the Alexco Circular by the Alexco Board and the Alexco Securityholder Approval. This Agreement has been duly executed and delivered by Alexco and constitutes a legal, valid and binding obligation of Alexco, enforceable against Alexco in accordance with its terms, subject to the qualification that such enforceability may be limited by bankruptcy, insolvency, reorganization or other laws of general application relating to or affecting rights of creditors and that equitable remedies, including specific performance, may be generated only in the discretion of a court of competent jurisdiction.

No Violation. None of the execution and delivery of this Agreement by Alexco, the performance by Alexco of its obligations hereunder or the completion of the Arrangement pursuant to the Plan of Arrangement, or compliance by Alexco or any of its subsidiaries with any of the provisions hereof will:

except as disclosed in Schedule 3.1(e) of the Alexco Disclosure Letter, violate, conflict with, or result (with or without notice or the passage of time) in a violation or breach of any provision of, or require any consent, approval or notice under, or constitute a default (or an event which, with notice or lapse of time or both, would constitute a default) under, or result in a right of termination or acceleration under, or result in the creation of any Lien upon, any of the properties or assets of Alexco or any of its subsidiaries, or result in any material restriction, hindrance, impairment or limitation on the ability of Alexco or any of its subsidiaries to conduct their business as and where it is now being conducted or cause any payment or other obligation to be imposed on Alexco or any of its subsidiaries under any of the terms, conditions or provisions of:

their respective notice of articles, articles or other comparable constating documents; or

any note, bond, mortgage, indenture, loan agreement or deed of trust to which Alexco or any of its subsidiaries is a party or any Alexco Material Contract;

result (with or without notice or the passage of time) in a violation or breach of, or constitute a default under, any provisions of any Law applicable to Alexco or any of its subsidiaries or any of their respective properties or assets; or

cause the suspension or revocation of any Permit currently in effect in respect of Alexco or any of its subsidiaries;

give rise to any rights of first refusal or trigger any change in control provisions or any restrictions or limitation under any note, bond, mortgage, indenture, loan agreement or deed of trust to which Alexco or any of its subsidiaries is a party or any Alexco Material Contract or under any Permit held by Alexco or any of its subsidiaries; or

result in the imposition of any Lien upon any property or assets of Alexco or any of its subsidiaries,

Capitalization. The authorized share capital of Alexco consists of an unlimited number of Alexco Shares, without par value. As of the close of business on the Business Day prior to the date of this Agreement, there are issued and outstanding 162,724,397 Alexco Shares. In addition, as of the close of business on the Business Day prior to the date of this Agreement, an aggregate of 8,421,218 Alexco Shares are issuable upon the exercise of Alexco Options, 894,000 Alexco Shares are issuable upon the vesting of outstanding Alexco DSUs, 1,087,935 Alexco Shares are issuable upon the vesting of Alexco RSUs and 2,000,000 Alexco Shares are issuable upon the exercise of the Alexco Warrants. Except as disclosed above, there are no options, warrants, conversion privileges or other rights, agreements, arrangements or commitments (pre-emptive, contingent or otherwise) of any character whatsoever requiring or which may require the issuance, sale or transfer by Alexco of any securities of Alexco (including Alexco Shares), or any securities or obligations convertible into, or exchangeable or exercisable for, or otherwise evidencing a right or obligation to acquire, any securities of Alexco (including Alexco Shares) or any of its subsidiaries. All outstanding Alexco Shares have been duly authorized and validly issued, are fully paid and non-assessable, and all Alexco Shares issuable upon the exercise of the Alexco Options, Alexco Warrants or vesting of Alexco DSUs and Alexco RSUs in accordance with their respective terms have been duly authorized and, upon issuance, will be validly issued as fully paid and non-assessable. Schedule 3.1(f) to the Alexco Disclosure Letter sets forth, as of the date hereof, the holders of all Alexco Options, Alexco Warrants, Alexco DSUs, and Alexco RSUs and the number, exercise prices, and expiration dates of each grant to such holders. There are no securities of Alexco or of any of its subsidiaries outstanding which have the right to vote generally (or, other than the Alexco Options, Alexco Warrants, Alexco DSUs and Alexco RSUs, are convertible

Shareholder and Similar Agreements. Alexco is not party to any shareholder, pooling, voting trust or other similar agreement relating to the issued and outstanding shares in the capital of Alexco.

Reporting Status and Securities Laws Matters. Alexco is a “reporting issuer” and is not on the list of reporting issuers in default under applicable Canadian provincial Securities Laws, in British Columbia, Alberta, Saskatchewan, Manitoba and Ontario. The Alexco Shares are registered under Section 12(b) of the U.S. Exchange Act and Alexco is in compliance in all material respects with applicable U.S. Securities Laws. No delisting, suspension of trading in or cease trading order with respect to any securities of Alexco and, to the knowledge of Alexco, no inquiry or investigation (formal or informal) of Alexco or the Alexco Public Disclosure Record by any Securities Authority is in effect or ongoing or, to the knowledge of Alexco, threatened or expected to be implemented or undertaken. The Alexco Shares are listed and posted for trading on the TSX and the NYSE American. Alexco is in compliance with applicable requirements of the TSX and the NYSE American, except where non-compliance would not result in a Alexco Material Adverse Effect or prevent or materially delay the consummation of the transactions contemplated by this Agreement or the completion of the Arrangement pursuant to the Plan of Arrangement.

Ownership of Subsidiaries. All of the issued and outstanding shares of capital stock and other ownership interests in each of the subsidiaries are duly authorized, validly issued, fully paid and non-assessable, and all such shares and other ownership interests are legally and beneficially owned, directly or indirectly, by Alexco free and clear of all Liens and there are no outstanding options, warrants, rights, entitlements, understandings or commitments (contingent or otherwise) regarding the right to purchase or acquire, or securities convertible into, or exchangeable or exercisable for, any such shares of capital stock or other ownership interests in or material assets or properties of a subsidiary. There are no contracts, commitments, agreements, understandings, arrangements or restrictions which require any of the subsidiaries to issue, sell or deliver any shares in its share capital or other ownership interests, or any securities or obligations convertible into, or exchangeable or exercisable for, any shares of its share capital or other ownership interests. There are no outstanding options, rights, entitlements, understandings or commitments (contingent or otherwise) providing to any third party the right to acquire any shares or other ownership interests in any of the subsidiaries.

Canadian Competition Approvals. Other than Canadian Competition Approval, if required, any approvals required by the Interim Order or Final Order and any filings

Consents. There are no consents or waivers required from any party under any Alexco Material Contract to which Alexco or its subsidiaries are a party in order for Alexco to proceed with the completion of the transactions contemplated by this Agreement or the Arrangement pursuant to the Plan of Arrangement.

Public Filings. Alexco has filed or furnished, as applicable, all documents in the Alexco Public Disclosure Record required to be filed or furnished by it in accordance with applicable Securities Laws and the requirements of the TSX and the NYSE American. All such documents and information comprising the Alexco Public Disclosure Record, as of their respective dates (and the dates of any amendments thereto): (i) did not contain any misrepresentation; and (ii) complied in all material respects with the requirements of applicable Securities Laws and the applicable policies of the TSX and the NYSE American relating to continuous disclosure requirements. Alexco has not filed any confidential material change report with any Securities Authorities that at the date of this Agreement, remains confidential. Since January 1, 2020, there has been no change in a material fact or a material change (as those terms are defined under the Securities Act) in relation to Alexco, except for: (A) changes in material facts or material changes that are reflected in a document included in the Alexco Public Disclosure Record and (B) this Agreement and the transactions contemplated hereby.

Alexco Financial Statements.

Alexco’s audited financial statements as at and for the financial years ended December 31, 2021 and December 31, 2020 (including the notes thereto and the report of the auditors thereon) and Alexco’s unaudited interim financial statements as at and for the three month periods ended March 31, 2022 and 2021 (including the notes thereto) (collectively, the “Alexco Financial Statements”) were prepared in accordance with IFRS consistently applied and fairly present in all material respects the consolidated financial position, results of operations and changes in financial position of Alexco and its subsidiaries as of the dates thereof and for the periods indicated therein (subject, in the case of any unaudited interim financial statements, to normal period-end adjustments) and reflect reserves required by IFRS in respect of all material contingent liabilities, if any, of Alexco and its subsidiaries on a consolidated basis. There has been no material change in Alexco’s accounting policies since December 31, 2021, except as disclosed in the Alexco Public Disclosure Record or as required by IFRS.

The management of Alexco has established and maintained a system of disclosure controls and procedures designed to provide reasonable assurance that information required to be disclosed by Alexco in its annual

Alexco maintains internal control over financial reporting. Such internal control over financial reporting is effective in providing reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with IFRS and includes policies and procedures that: (A) pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and dispositions of the assets of Alexco and its subsidiaries; (B) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with IFRS, and that receipts and expenditures of Alexco and its subsidiaries are being made only with authorizations of management and directors of Alexco and its subsidiaries, as applicable; and (C) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the assets of Alexco or its subsidiaries that could have a material effect on its financial statements.

To the knowledge of Alexco: (A) there are no material weaknesses in the design and implementation or maintenance of its internal control over financial reporting of Alexco that are reasonably likely to adversely affect the ability of Alexco to record, process, summarize and report financial information; and (B) there is no fraud, whether or not material, that involves management or other employees who have a significant role in the internal control over financial reporting of Alexco.

Since December 31, 2021, neither Alexco nor any of its subsidiaries nor, to Alexco’s knowledge, any director, officer, employee, auditor, accountant or Representative of Alexco or any of its subsidiaries has received or otherwise had or obtained knowledge of any complaint, allegation, assertion, or claim, whether written or oral, regarding the accounting or auditing practices, procedures, methodologies or methods of Alexco or any of its subsidiaries or their respective internal accounting controls, including any complaint, allegation, assertion, or claim that Alexco or any of its subsidiaries has engaged in questionable accounting or auditing practices, which has not been resolved to the satisfaction of the audit committee of the Alexco Board.

Books and Records. The financial books, records and accounts of Alexco and its subsidiaries, in all material respects: (i) have been maintained, in the case of Alexco in accordance with IFRS, and in the case of its subsidiaries in accordance with generally accepted accounting principles of their respective governing jurisdictions; (ii) are stated in reasonable detail and accurately and fairly reflect the material transactions and dispositions of the assets of Alexco and its subsidiaries; and (iii) accurately and fairly reflect the basis for the Alexco Financial Statements. The corporate records and minute books for each of Alexco and its subsidiaries contain, in all material respects, complete and accurate minutes of all meetings and resolutions of the directors and shareholders of Alexco and each of its subsidiaries held and/or passed, as applicable, since their incorporation or amalgamation, as the case may be.

No Undisclosed Liabilities. Other than as disclosed in the most recent Alexco Financial Statements filed, or furnished, as applicable, on SEDAR, as incurred in the ordinary course of business since the date of such financial statements, incurred pursuant to the Hecla Secured Loan, or as disclosed in this Agreement, Alexco and its subsidiaries have no outstanding indebtedness or liabilities in excess of $250,000 and are not party to or bound by any material suretyship, guarantee, indemnification or assumption agreement, or endorsement of, or any other similar commitment with respect to the material obligations, liabilities or indebtedness of any person.

No Alexco Material Adverse Effect. Since December 31, 2021, except as disclosed in the Alexco Public Disclosure Record prior to the date of this Agreement, there has been no Alexco Material Adverse Effect.

No Dividend or Distribution. Since December 31, 2021, there has been no dividend or distribution of any kind declared, paid or made by Alexco on any Alexco Shares.

Contracts. Schedule 3.1(r) of the Alexco Disclosure Letter includes a complete and accurate list of all Alexco Material Contracts. All Alexco Material Contracts are in full force and effect, and Alexco or its subsidiaries are entitled to all rights and benefits thereunder in accordance with the terms thereof. Alexco has provided Hecla with true and complete copies of all Alexco Material Contracts. All of the Alexco Material Contracts are valid and binding obligations of Alexco enforceable in accordance with their respective terms, except as may be limited by bankruptcy, insolvency and other laws affecting the enforcement of creditors’ rights generally and subject to the qualification that equitable remedies may only be granted in the discretion of a court of competent jurisdiction. Alexco and its subsidiaries have complied in all material respects with all terms of such Alexco Material Contracts, have paid all amounts due thereunder, have not waived any rights thereunder and no material default or breach exists in respect thereof on the part of Alexco or any of its subsidiaries or, to the knowledge of Alexco or any of its subsidiaries, on the part of any other party thereto, and no event has occurred which, after the giving of notice or the lapse of time or both, would constitute such a material default or breach or trigger a right of termination of any of the Alexco Material Contracts. As at the date of this Agreement, neither Alexco nor any of its subsidiaries has received written notice that any party to a Alexco Material Contract intends to cancel,

Litigation. There are no claims, actions, suits, grievances, complaints or proceedings pending or, to the knowledge of Alexco, threatened affecting Alexco or any of its subsidiaries or affecting any of the Alexco Concessions, property or assets at law or in equity before or by any Governmental Entity, including matters arising under Environmental Laws, which, if adversely determined, would, individually or in the aggregate, result in a Alexco Material Adverse Effect or prevent or materially delay the consummation of the transactions contemplated by this Agreement or the Arrangement pursuant to the Plan of Arrangement. Neither Alexco nor any of its subsidiaries nor their respective assets or properties is subject to any outstanding judgement, order, writ, injunction or decree which, individually or in the aggregate, would result in a Alexco Material Adverse Effect or which would prevent or materially delay consummation of the transactions contemplated by this Agreement or the Arrangement pursuant to the Plan of Arrangement.

Taxes.

Each of Alexco and its subsidiaries, in all material respects, has duly and timely made or prepared all Returns required to be made or prepared by it, has duly and timely filed all Returns required to be filed by it with the appropriate Governmental Entity and has duly, completely and correctly reported all income and all other amounts and information required to be reported thereon.

Each of Alexco and its subsidiaries, in all material respects, has duly and timely paid all Taxes, including all instalments on account of Taxes for the current year, that are due and payable by it.

None of Alexco or any of its subsidiaries has requested, offered to enter into or entered into any agreement or other arrangement, or executed any waiver, providing for any extension of time within which: (i) to file any Return covering any Taxes for which Alexco or any of its subsidiaries is or may be liable; (ii) to file any elections, designations or similar filings relating to Taxes for which Alexco or any of its subsidiaries is or may be liable; (iii) Alexco or any of its subsidiaries is required to pay or remit any Taxes or amounts on account of Taxes; or (iv) any Governmental Entity may assess or collect Taxes for which Alexco or any of its subsidiaries is or may be liable.

To the knowledge of Alexco, there are no proceedings, investigations, audits or claims now pending or threatened against Alexco or any of its subsidiaries in respect of any Material Taxes and there are no matters under discussion, audit or appeal with any Governmental Entity relating to Material Taxes.

Each of Alexco and its subsidiaries, in all material respects, has duly and timely withheld all Taxes and other amounts required by Law to be withheld by it (including Taxes and other amounts required to be withheld by it in respect of any amount paid or credited or deemed to be paid or credited by it to or for the account or benefit of any person, including any employees, officers or directors and any non-resident person), and has duly and timely remitted to the appropriate Governmental Entity such Taxes and other amounts required by Law to be remitted by it.

Each of Alexco and its subsidiaries, in all material respects, has duly and timely collected all amounts on account of any sales or transfer taxes, including goods and services, harmonized sales and provincial or territorial sales taxes, required by Law to be collected by it and has duly and timely remitted to the appropriate Governmental Entity any such amounts required by Law to be remitted by it.

Each of Alexco and its subsidiaries, if legally required to do so, is duly registered under subdivision (d) of Division V of Part IX of the Excise Tax Act (Canada) with respect to the goods and services tax and harmonized sales tax.

Except pursuant to this Agreement or as specifically disclosed in writing to the Hecla, for purposes of the Tax Act or any other applicable Tax statute, no person or group of persons has ever acquired or had the right to acquire control of Alexco or any of its subsidiaries.

None of Alexco or any of its subsidiaries has acquired property from a non-arm’s length person, within the meaning of the Tax Act, for consideration, the value of which is less than the fair market value of the property acquired in circumstances which could subject it to a liability under section 160 of the Tax Act.

Each of Alexco and its subsidiaries has complied in all material respect with the transfer pricing provisions of each applicable Law relating to Taxes, including the contemporaneous documents and disclosure requirements thereunder.

No jurisdiction or authority in which Alexco or a subsidiary, as applicable, does not file a Return has alleged that Alexco or such subsidiary, as applicable, is required to file such a Return.

Alexco has not applied for any Canada Emergency Wage Subsidy or Canada Emergency Rent Subsidy, in each case as provided for under section 125.7 of the Tax Act, or any analogous or similar COVID-19 relief measures enacted by the Government of Canada or any province or territory thereof.

As of June 1, 2022, $5,098,382 qualified expenditures are required to be renounced by Alexco on or before December 31, 2022 and renounced relating to Alexco’s outstanding “flow-through shares”.

Alexco is not, and has never been, in default of any of its legal obligations in respect of any “flow-through share” financings previously undertaken by it.

Property.

All of the Alexco Concessions are listed in Schedule 3.1(u)(iii) of the Alexco Disclosure Letter. The Alexco Concessions are the only mineral tenures that Alexco or any of its subsidiaries have any legal or equitable interest in and that are required to conduct Alexco’s or any of its subsidiaries business as now conducted.

The Alexco Lands are the only interests in real property (other than the Alexco Concessions and the Alexco Office Leases) that are required to conduct Alexco’s or any of its subsidiaries business as now conducted.

Each of the Alexco Concessions and Alexco Lands is in good standing in all material respects and is held by Alexco free and clear of all material Liens other than as disclosed in Schedule 3.1(u)(iii) of the Alexco Disclosure Letter, and no person has any agreement or right to acquire an interest in such assets.

Alexco has exclusive possession of, and the exclusive right to deal with, the Alexco Concessions and Alexco Lands.

Other than as disclosed in Schedule 3.1(u)(v) of the Alexco Disclosure Letter, there are no mineral royalty obligations, metals streaming obligations or similar obligations affecting the Alexco Concessions or the Alexco Lands or the production or revenues or profits therefrom and no other person has any right to acquire any interest in such obligations.

Each Alexco Concession has been properly filed, located, granted and recorded in compliance with applicable Laws in all material respects and are comprised of valid and subsisting mining, mineral or exploration rights.

Any and all assessment work required to have been performed and filed in respect of the Alexco Concessions as of the date of this Agreement has been performed and filed in all material respects.

All material mining fees, Taxes and other payments required to have been paid in respect of the Alexco Concessions as of the date of this Agreement have been paid.

Any and all material filings required to have been filed in respect of the Alexco Concessions as of the date of this Agreement have been filed.

Alexco has all the surface rights from landowners or Governmental Entities permitting the entry and use of land by Alexco and such subsidiaries over which the Alexco Concessions are located and, to the knowledge of Alexco, there is no illegal occupation of such Alexco Lands by any person.

Other than as disclosed in Schedule 3.1(u)(xi) of the Alexco Disclosure Letter, no other person has any material interest in the Alexco Concessions or the Alexco Lands.

There are no back-in rights, earn-in rights, rights of first refusal, rights of first offer, option rights, royalty rights, rights of participation or similar provisions which would materially affect Alexco’s or its subsidiaries’ interests in the Alexco Concessions.

There are no adverse claims, actions, suits or proceedings pending or, to the knowledge of Alexco, that are threatened, affecting the Alexco Concessions or the Alexco Lands.

Neither Alexco nor its subsidiaries have received any notice, whether written or oral from any Governmental Entity or any person with jurisdiction or applicable authority of any revocation or intention to revoke Alexco’s or its subsidiaries’ interests in the Alexco Concessions.

No material dispute exists or, to the knowledge of Alexco, is pending or threatened in connection with the ownership, access to or use of any Alexco Concessions or Alexco Lands between Alexco or any of its Subsidiaries and: (A) any surface landowner; (B) other mining companies; (C) a concessionaire of hydrocarbon rights; or (D) any Governmental Entity.

Operational Matters. Except as would not, individually or in the aggregate, have a Alexco Material Adverse Effect:

all rentals, royalties, overriding royalty interests, production payments, net profits, interest burdens, payments and obligations due and payable, or performable, as the case may be, on or prior to the date hereof under, with respect to, or on account of, any direct or indirect property or asset of Alexco or any of its subsidiaries, including the Alexco Concessions and Alexco Lands, have been:

duly paid;

duly performed; or

provided for prior to the date hereof;

all costs, expenses and liabilities payable on or prior to the date hereof under the terms of any contracts and agreements to which Alexco or any of its subsidiaries is directly or indirectly bound, have been properly and timely paid, except for such expenses that are being currently paid prior to delinquency in the ordinary course of business;

any and all operations of Alexco and each of its subsidiaries and, to the knowledge of Alexco, any and all operations by third parties, on or in respect of the assets and properties of Alexco or any of its subsidiaries, have been conducted in a good, workmanlike and efficient manner in accordance with sound mining and other applicable Canadian mining industry standards and practices and in material compliance with applicable Laws; and

to the knowledge of Alexco, there are no operational, geotechnical or structural issues relating to the operations on the Alexco Concessions or Alexco Lands.

Mineral Reserves and Resources. Alexco is in compliance in all material respects with the provisions of NI 43-101 and has filed all technical reports required thereby. The most recent estimated proven and probable mineral reserves and indicated, measured and inferred mineral resources disclosed in the Alexco Public Disclosure Record prior to the date of this Agreement, have been prepared in accordance with accepted mining, engineering, geoscience and other applicable industry standards and in all material respects in accordance with all applicable Laws, including NI 43-101. The information provided by Alexco to the Qualified Persons (as defined in NI 43-101) in connection with the preparation of the Alexco Technical Report was complete and accurate at the time such information was furnished and complied in all material respects, with the requirements of NI 43-101. There has been no material reduction in the aggregate amount of the most recently estimated mineral reserves and mineral resources of Alexco from the amounts disclosed in the Alexco Public Disclosure Record, other than depletion from ordinary course mining operations. All material information regarding the Keno Hill Project, including drill results, technical reports and studies, that are required to be disclosed by Securities Laws, have been disclosed in the Alexco Public Disclosure Record in compliance, in all material respects, with applicable Securities Laws.

Technical Report.

The Keno Hill Silver Project is currently the only material property of Alexco for the purposes of NI 43-101 and the sole technical report concerning the Keno Hill Silver Project is the technical report entitled “NI 43-101 Technical Report on Updated Mineral Resource and Reserve Estimate of the Keno Hill Silver District” with an effective date of April 1, 2021, and prepared by Mining Plus Canada Consulting Ltd. (the “Alexco Technical Report”).

Alexco or its corporate predecessors made available to the authors of the Alexco Technical Report, prior to the issuance thereof, for the purpose of

As of the date hereof the Alexco Technical Report remains current and since the date of the Alexco Technical Report there is no new material scientific or technical information concerning the Keno Hill Silver Project that is not included in the Alexco Technical Report and that would require a new technical report in respect of such property to be issued under NI 43-101.

Health and Safety.

Neither Alexco nor any of its subsidiaries has received any demand or notice with respect to a material breach of any applicable health and safety Laws, the effect of which would be reasonably expected to materially affect its operations.

There are no claims, investigations or inquiries pending against Alexco or any of its subsidiaries (or naming Alexco or any of its subsidiaries as a potentially responsible party) based on material non-compliance with any applicable health and safety Laws at any of its operations.

Cultural Heritage. None of the areas covered by the Alexco Concessions (including any constructions, remains or similar elements located on them) have been declared as a “Protected Archaeological Site” by any Governmental Entity.

Expropriation. No written notice or proceeding in respect of the taking, condemnation or expropriation by any Governmental Entity of any material part of the property or assets of Alexco or any of its subsidiaries, including the Alexco Concessions and Alexco Lands has been given or commenced, nor, to the knowledge of Alexco, is any such proceeding or notice threatened.

Permits. Alexco and each of its subsidiaries has obtained, and is in compliance with, all Permits required by applicable Laws or necessary to conduct its current business as is now being conducted, other than where non-compliance would not result in a Alexco Material Adverse Effect. To the knowledge of Alexco, there are no facts, events or circumstances that would reasonably be expected to result in a revocation of, or failure to renew in the ordinary course, such Permits as are necessary to conduct Alexco’s or any of its subsidiaries’ current business as is now being conducted, except for such revocations or failure to renew which, individually or in the aggregate, would not result in a Alexco Material Adverse Effect.

Environmental Matters. Each of Alexco and its subsidiaries and their respective businesses, operations, and properties:

is in compliance in all material respects with all Environmental Laws and all terms and conditions of all Environmental Permits;

has not received any order, request or notice from any person alleging a material violation of any Environmental Law;

(A) is not a party to any material litigation or administrative proceeding, nor to Alexco’s knowledge is any material litigation or administrative proceeding threatened against it or its property or assets, which in either case: (1) asserts or alleges that it violated any Environmental Laws; (2) asserts or alleges that it is required to clean up, remove or take remedial or other response action due to the Release of any Hazardous Substances; or (3) asserts or alleges that it is required to pay all or a portion of the cost of any past, present or future cleanup, removal or remedial or other response action which arises out of or is related to the Release of any Hazardous Substances; (B) has no knowledge of any conditions existing currently which could reasonably be expected to subject it to material damages, penalties, injunctive relief or cleanup costs under any Environmental Laws or which require or are likely to require cleanup, removal, remedial action or other material response by it pursuant to applicable Environmental Laws; and (C) is not subject to any material judgment, decree, order or citation related to or arising out of applicable Environmental Law and has not been named or listed as a potentially responsible party by any Governmental Entity in a material matter arising under any Environmental Laws; and

is not involved in operations and does not know of any facts, circumstances or conditions, including the Release of any Hazardous Substance that would reasonably be expected to result in any material Environmental Liabilities, except any Environmental Liabilities for which there is a claim for indemnity under the Amended and Restated Subsidiary Agreement dated July 18, 2013 among Alexco, ▇▇▇▇ Reclamation and Development Company Ltd. and Her Majesty the Queen in Right of Canada.

Employee Benefits.

Schedule 3.1(dd) of the Alexco Disclosure Letter sets forth a complete and correct list of all plans, agreements, programs, policies or practices which provide any employee benefit, fringe benefit, health, life insurance, welfare, supplemental unemployment benefit, bonus, incentive, profit sharing, deferred compensation, stock purchase, stock compensation, stock option, share appreciation rights, disability, pension, supplemental pension or other retirement savings, and any other employee or independent contractor compensation or benefit plans, policies, arrangements, practices or undertakings, whether oral or written, formal or informal, funded or unfunded, insured or uninsured, in each case which are maintained by or binding upon Alexco or any of its subsidiaries or in respect of which Alexco or any of its subsidiaries has any actual or potential liability (collectively, the “Alexco Benefit Plans”).

Current and complete copies of all written Alexco Benefit Plans as amended to date, or where oral, written summaries of the terms thereof, have been provided to Hecla and their counsel, together with copies of all material documents relating to each Alexco Benefit Plan.

Each Alexco Benefit Plan has, in all material respects, been established, registered, funded, administered and invested in compliance with the terms of such Alexco Benefit Plan and all applicable Laws and collective bargaining agreements relating thereto. All employer and employee payments, contributions and premiums required to be remitted, paid to or in respect of each Alexco Benefit Plan have, in all material respects, been paid or remitted in a timely fashion in accordance with its terms and all applicable Laws. There is no investigation or audit by a Governmental Entity or claim (other than routine claims for payment of benefits) pending or, to the knowledge of Alexco, threatened involving any Alexco Benefit Plan or its assets.

None of the Alexco Benefit Plans is a “registered pension plan” or a “retirement compensation arrangement” as such terms are defined in the Tax Act, or any other plan organized and administered to provide pension or superannuation benefits to any current or former employees of Alexco or any of its subsidiaries. None of the Alexco Benefit Plans provide health, life insurance or any other welfare benefits beyond retirement or other termination of service to any current or former employees of Alexco (or any spouses, dependents, survivors or beneficiaries of such persons). None of the Alexco Benefit Plans applies to, or permits participation by, employers that are not affiliates of Alexco or any of its subsidiaries.

Neither Alexco nor any of its subsidiaries has made any promise or commitment to create any additional benefit plans which would be considered to be a Alexco Benefit Plan once created or to improve or change the benefits provided under any Alexco Benefit Plan.

Labour and Employment.

Schedule 3.1(ee) of the Alexco Disclosure Letter sets out a complete and accurate list of all employees and contractors of Alexco, as well as their title, date of hire, salary, wage rate, fee, vacation entitlement and total accrual, eligibility for overtime, bonus, and other material compensation. Other than as set out in Schedule 3.1(ee), no employee is on leave or otherwise absent from work. Except for those: (A) employment contracts with salaried employees of Alexco or any of its subsidiaries; and (B) contracts with contractors of Alexco and any of its subsidiaries identified in Schedule 3.1(ee) of the Alexco Disclosure Letter, there are no written or oral contracts of employment entered into with any such employees or contractors. Except as identified in Schedule 3.1(ee) of the Alexco Disclosure Letter, no employee, contractor, officer or director of Alexco or any of its subsidiaries is party to a change of control, severance, termination, golden parachute or similar agreement or provision or would receive under such agreement or provision as a result of the Arrangement:

any payment (including severance, unemployment compensation, “golden parachute”, bonus or otherwise) or increase any benefits otherwise payable;

any increase in the rate of, or acceleration of the time of payment or vesting of, wages, salaries, commissions, bonuses, incentive compensation or other remuneration, severance entitlement, or benefits otherwise payable; or

an acceleration in the time of payment or vesting of any benefits or entitlements otherwise available pursuant to any Alexco Benefit Plan.

Except as disclosed in Schedule 3.1(ee) of the Alexco Disclosure Letter, neither Alexco nor any of its subsidiaries is subject to any collective agreement, either directly or by operation of law, with any trade union or association which may qualify as a trade union, nor does any trade union or association which may qualify as a trade union hold bargaining rights relating to Alexco or any of its subsidiaries or their employees. There are no outstanding labour tribunal (administrative or judicial) proceedings of any kind related to any labour or employment obligation under any applicable Laws, including unfair labour practice proceedings or any proceedings which could result in certification of a trade union as bargaining agent for any employees of Alexco or any of its subsidiaries. No material claim relating to termination of employment with Alexco or its subsidiaries is pending or, to the knowledge of Alexco, threatened. To the knowledge of Alexco, there are no threatened or apparent union organizing activities involving employees of Alexco or any of its subsidiaries nor is Alexco or any of its subsidiaries currently negotiating any collective agreement.

No labour strike, lock-out, slowdown or work stoppage is pending against or directly affecting Alexco or any of its facilities.

All amounts due or accrued for all salary, wages, commissions, bonuses, vacation pay, other compensation and benefits under the Alexco Benefit Plans to the employees and contractors of Alexco and its subsidiaries for the period up to March 31, 2022 have either been paid or are accurately reflected in Alexco’s financial books and records.

Each of Alexco and its subsidiaries is in compliance with all material terms and conditions of employment and all Laws respecting employment, including pay equity, accessibility, employment standard, wages, hours of work, overtime, occupational health and safety, workers compensation, human rights and privacy. To the knowledge of Alexco, neither Alexco nor any of its subsidiaries is subject to any outstanding or pending grievance, complaint, investigation, order, claim of wrongful dismissal, constructive dismissal, unfair labour practice, human rights violation or any other similar

Alexco and its subsidiaries have withheld from each payment made to any of its present or former employees, contractors, officers or directors, or to other persons, all amounts required by Law to be withheld by it on account of income taxes, pension plan contributions, employment insurance premiums, employer health taxes, workers compensation and similar taxes and levies, and has remitted such withheld amounts within the required time to the appropriate Governmental Entity.

All independent contractors retained or used by Alexco have been properly classified and Alexco has not received any notice challenging such classification from any Governmental Entity.

Data Privacy and Security.

Alexco has administrative, technical and physical safeguards (including monitoring compliance with such safeguards) to protect the confidentiality, privacy and security of Personal Information and the systems, technology and networks that process Personal Information (the “Alexco Information Security”). Alexco has provided true, correct and complete copies of all written policies and procedures related to the Alexco Information Security. Each of Alexco’s employees has received appropriate training on the Alexco Information Security relevant to each such employee’s role.

Neither Alexco nor its subsidiaries has experienced: (i) any unauthorized processing of Personal Information in the possession, custody or control of any of Alexco or its subsidiaries; or (ii) any unauthorized processing by a third party of Personal Information processed for or on behalf of Alexco or its subsidiaries. Alexco has not knowingly, acted in a manner, is not aware of any incident or by the exercise or reasonable diligence would not be aware of any incident that would trigger an obligation to notify any person or Governmental Entity under any applicable Laws or Contract.

Alexco and its subsidiaries are in compliance with and has complied with, in all material respects, (i) all Laws related to Personal Information; (ii) all policies, procedures, processes, statements or notices related to Personal Information to the extent such policies, procedures, processes, statements or notices are legally binding or give rise to legally-enforceable duties; and (iii) each Contract related to processing (“Privacy Legal Requirements”).

Alexco and its subsidiaries either transmits Personal Information across jurisdictional borders in compliance in all material respects with all Privacy Legal Requirements or processes Personal Information exclusively in the same jurisdiction as each data subject to which it relates resides.

Alexco and its subsidiaries has entered into written agreements with each third-party service provider, vendor and business partner that processes Personal Information, such as payment card processors, advertising and marketing agencies, cloud storage vendors and outsourced technology or human resource functions, (collectively, “Data Related Vendors”) containing commercially reasonable provisions for data privacy and security. Alexco has taken reasonable steps to select and retain only those Data Related Vendors that are capable of maintaining the confidentiality, privacy and security of the Personal Information that they process on behalf of Alexco or its subsidiaries.

No Person has commenced or threatened within the past five (5) years any action or other written complaint, audit, proceeding, claim or investigation arising from or relating to processing by, for or on behalf of Alexco or its subsidiaries.

The execution, delivery and performance of this Agreement and the consummation of the transactions contemplated herein shall not cause, constitute or result in a breach or violation any Privacy Legal Requirement, any policy, procedure, process, statement or notice of Alexco as it currently exists or as it existed at any time during which any Personal Information was processed by or on behalf of Alexco or its subsidiaries.

Intellectual Property

Schedule 3.1(gg) of the Alexco Disclosure Letter sets forth a true, correct, and complete list of all Intellectual Property owned by Alexco or its subsidiaries. Alexco or one of its subsidiaries owns (free and clear of any Liens), or possesses valid rights to use, all Intellectual Property necessary to conduct the business of Alexco as it is currently conducted, and to lease, own, use and operate its properties and assets as currently leased and operated.

To the knowledge of Alexco, no third party is currently infringing or misappropriating any material Intellectual Property owned by Alexco or any of its subsidiaries. Neither Alexco nor any of its subsidiaries has infringed or misappropriated any Intellectual Property of any third party or received any material written claim of infringement or misappropriation of any Intellectual Property of any third party.

Compliance with Laws. Alexco and its subsidiaries have complied in all material respects with and are not in violation in any material respect of any applicable Laws, other than non-compliance or violations which would not, individually or in the aggregate, result in a Alexco Material Adverse Effect or which would prevent or materially delay consummation of the transactions contemplated by this Agreement or the Arrangement.

Winding Up. No order has been made, petition presented or meeting convened for the purpose of winding up of Alexco or any of its subsidiaries, or for the appointment of any provisional liquidator or in relation to any other process whereby the business is terminated and the assets of Alexco or any of its subsidiaries are distributed amongst the creditors, shareholders or other contributors, and there are no proceedings under any applicable insolvency, bankruptcy, reorganisation or similar laws in any relevant jurisdiction, and no events have occurred which, under applicable Laws, would be reasonably likely to justify any such cases or proceedings.

Administration and Receivership. To the knowledge of Alexco, no person has taken any step, legal proceeding or other procedure with a view to the appointment of an administrator, whether out of court or otherwise, in relation to Alexco or any of its subsidiaries, and no receiver (including any administrative receiver) has been appointed in respect of the whole or any part of any of the property, assets or undertaking of Alexco or any of its subsidiaries nor has any such order been made (including, in any relevant jurisdiction, any other order by which, during the period it is in force, the affairs, business and assets of the company concerned are managed by a person appointed by any Governmental Entity).

Voluntary Arrangement, Etc. Neither Alexco nor any of its subsidiaries has made any voluntary arrangement with any of its creditors or is insolvent or unable to pay its debts as they fall due.

Related Party Transactions. Other than among Alexco and its subsidiaries, there are no Contracts or other transactions currently in place between Alexco or any of its subsidiaries, on the one hand, and, on the other hand: (i) any Alexco Shareholder of record or, to the knowledge of Alexco, beneficial owner of five 5% or more of the Alexco Shares; (ii) any officer or director of Alexco or any of its subsidiaries; or (iii) to the knowledge of Alexco, any affiliate or associate of any such, officer, director, Alexco Shareholder of record or beneficial owner.

Registration Rights. No Alexco Shareholder has any right to compel Alexco to register or otherwise qualify the Alexco Shares (or any of them) for public sale or distribution.

Restrictions on Business Activities. There is no arbitral award, judgment, injunction, order or decree binding upon Alexco or any of its subsidiaries that has or could reasonably be expected to have the effect of prohibiting, restricting, or impairing in any material respect: (i) any business practice; (ii) any acquisition or disposition of property; or (iii) the conduct of the business, as currently conducted.

Shareholder Rights Plan. There is no shareholder rights plan, “poison pill”, anti- takeover plan, or similar arrangement in effect to which Alexco or any of its subsidiaries is subject, party to or otherwise bound.

Relationships with Suppliers. Alexco has not received any written (or to the knowledge of Alexco) notice that any supplier whose services, if discontinued or withheld, would be reasonably expected to materially affect operations relating to the Keno Hill Silver Project, intends to cancel, terminate or otherwise modify or not renew its relationship with Alexco or its subsidiaries.

Brokers. No broker, investment banker, financial advisor or other person is entitled to any broker’s, finder’s, financial advisor’s or other similar fee or commission in connection with the transactions contemplated hereby based upon arrangements made by or on behalf of Alexco, other than the Alexco Financial Advisors, the fees and expenses of which are as set forth in their engagement letters (true and complete copies of which has been provided to Hecla).

Insurance. Alexco and its subsidiaries have in place reasonable and prudent insurance policies appropriate for its size, nature and stage of development. All such policies of insurance as are listed in Schedule 3.1(rr) of the Alexco Disclosure Letter. All insurance maintained by or in respect of Alexco or any of its subsidiaries is in full force and effect and in good standing and Alexco will use reasonable commercial efforts to keep them in full force and effect or renew them as appropriate through the Effective Date. Neither Alexco nor any of its subsidiaries is in default, whether as to payment of premium or otherwise, under the terms of any such insurance nor has Alexco or any of its subsidiaries failed to give any notice or present any material claim under any such insurance in a due and timely fashion or received notice or otherwise become aware of any intent of an insurer to either claim any default on the part of Alexco or any of its subsidiaries or not to renew any policy of insurance on its expiry or to increase any deductible or cost.

Corrupt Practices Legislation.

Neither Alexco nor any of its subsidiaries, nor, to Alexco’s knowledge, any of their respective directors, officers, agents, employees, consultants or other persons acting on behalf of Alexco or any of its subsidiaries has offered or given, and Alexco is not aware of or does not have any knowledge of any person that has offered or given on its behalf, anything of value to any official of a Governmental Entity, any political party or official thereof or any candidate for political office, any customer or member of any Governmental Entity, or any other person (including any First Nation, aboriginal or indigenous official, candidate or community member), in any such case while knowing or having reason to know that all or a portion of such money or thing of value may be offered, given or promised, directly or indirectly, for the purpose of any of the following:

influencing any action or decision of such person, in such person’s official capacity, including a decision to fail to perform such person’s official function in order to obtain or retain an advantage for Alexco or any of its subsidiaries in the course of business;

inducing such person to use such person’s influence with any Governmental Entity to affect or influence any act or decision of such Governmental Entity to assist Alexco or any of its subsidiaries in obtaining or retaining business for, with, or directing business to, any person or otherwise to obtain or retain an advantage in the course of business; or

where such payment would constitute a bribe, rebate, payoff, influence payment, kickback or illegal or improper payment to assist Alexco or the subsidiary in obtaining or retaining business for, with, or directing business to, any person.

There have been no actions taken by Alexco, any of its subsidiaries or, to the knowledge of Alexco, by any persons on behalf of Alexco or any of its subsidiaries, that would cause Alexco or its subsidiaries or such persons to be in violation of the Corruption of Foreign Public Officials Act (Canada) or the Foreign Corrupt Practices Act of 1977 (United States), as amended (collectively, the “Corruption Acts”) or any similar legislation in any jurisdiction in which Alexco or any of its subsidiaries conduct their business and to which Alexco or any of its subsidiaries may be subject.

The financial records of Alexco and its subsidiaries have at all times been maintained in compliance with the Corruption Acts, during such times and to the extent Alexco was subject to any such Corruption Act.

There are no proceedings or investigations under the Corruption Acts or any similar legislation in any jurisdiction in which Alexco and its subsidiaries conduct their business pending against Alexco or any of its subsidiaries, nor any of their respective directors, officers, agents, employees, consultants or other persons acting on behalf of Alexco or any of its subsidiaries, or to the knowledge of Alexco, threatened against or affecting, Alexco or any of its subsidiaries or any of their respective directors, officers, agents, employees, consultants or other persons acting on behalf of Alexco or any of its subsidiaries.

Anti-Money Laundering. The operations of Alexco and its subsidiaries are in material compliance with the financial record-keeping and reporting requirements of the anti-money laundering and anti-terrorism statutes of all applicable jurisdictions, the rules and regulations thereunder and any related or similar rules, regulations or guidelines, issued, administered or enforced by any Governmental Entities to which Alexco or the subsidiary is subject, including the Proceeds of Crime (Money Laundering) and Terrorist Financing Act (Canada) (collectively, the “Money Laundering Laws”), and no action, suit, proceeding, investigation or notice by, before or from any Governmental Entity involving Alexco or any of its subsidiaries with respect to the Money Laundering Laws is pending.

NGOs and Community Groups. No material dispute (including any dispute relating to the ownership of any Alexco’s or its subsidiaries properties) between Alexco or

Foreign Private Issuer. Alexco is a “foreign private issuer” within the meaning of Rule 3b-4 under the U.S. Exchange Act.

Not an Investment Company. Alexco is not registered or required to be registered as an “investment company” within the meaning of the U.S. Investment Company Act of 1940, as amended.

Ownership of Hecla Shares or other Securities. Neither Alexco nor any of its affiliates own any Hecla Shares or any other securities of Hecla.

HSR Act. As determined in accordance with the HSR Act and regulations thereunder, (i) Alexco is a “foreign issuer” and (ii) Alexco and all entities it controls made aggregate sales in or into the United States in excess of US$101 million in Alexco’s most recent fiscal year.

Survival of Representations and Warranties

Representations and Warranties

Organization and Qualification. Hecla is a corporation duly incorporated or an entity duly created and validly existing under all applicable Laws of its jurisdiction of incorporation, continuance or creation and has all necessary corporate power and capacity to own its property and assets as now owned and to carry on its business as it is now being conducted. Hecla is duly qualified to carry on business and is in

Authority Relative to this Agreement. Hecla has the requisite corporate power and capacity to enter into this Agreement and to perform its obligations hereunder and thereunder. The execution and delivery of this Agreement by Hecla and the performance by Hecla of its obligations under this Agreement have been duly authorized by the Hecla Board and no other corporate proceedings on the part of Hecla are necessary to authorize the execution and delivery of this Agreement or the performance by Hecla of its obligations under this Agreement or the completion of the Arrangement pursuant to the Plan of Arrangement. This Agreement has been duly executed and delivered by Hecla and constitutes a legal, valid and binding obligation of Hecla, enforceable against Hecla in accordance with its terms, subject to the qualification that such enforceability may be limited by bankruptcy, insolvency, reorganization or other laws of general application relating to or affecting rights of creditors and that equitable remedies, including specific performance, may be granted only in the discretion of a court of competent jurisdiction.

No Violations. None of the execution and delivery of this Agreement, the completion of the Arrangement pursuant to the Plan of Arrangement, or compliance by Hecla or any of its material subsidiaries with any of the provisions hereof will:

violate, conflict with, or result (with or without notice or the passage of time) in a violation or breach of any provision of, or require any consent, approval or notice under, or constitute a default (or an event which, with notice or lapse of time or both, would constitute a default) under, or result in a right of termination or acceleration under, or result in the creation of any Lien upon, any of the properties or assets of Hecla or any of its subsidiaries, or result in any material restriction, hindrance, impairment or limitation on the ability of Hecla or any of its material subsidiaries to conduct their business as and where it is now being conducted, or cause any payment or other obligation to be imposed on Hecla or its material subsidiaries, under any of the terms, conditions or provisions of:

their respective notice of articles, articles or other comparable constating documents; or

any note, bond, mortgage, indenture, loan agreement or deed of trust to which Hecla or any of its material subsidiaries is a party or any Hecla Material Contract;

result (with or without notice or the passage of time) in a violation or breach of or constitute a default under any provisions of any Law applicable to Hecla or any of its material subsidiaries or any of their respective properties or assets; or

cause the suspension or revocation of any Permit currently in effect in respect of Hecla or any of its material subsidiaries;

give rise to any rights of first refusal or trigger any change in control provisions or any restrictions or limitation under any such note, bond, mortgage, indenture, loan agreement, deed of trust to which Hecla or any of its material subsidiaries is a party, any Hecla Material Contract or under any Permit held by Hecla or any of its material subsidiaries, or

result in the imposition of any Lien upon any property or assets of Hecla or any of its material subsidiaries.

Capitalization. The authorized share capital of Hecla consists of 750,000,000 Hecla Shares, par value of $0.25 per share and 5,000,000 shares of “Preferred Stock”, par value of $0.25 per share (the “Hecla Preferred Stock”). As of the close of business on the Business Day prior to the date of this Agreement, there are issued and outstanding 541,307,978 Hecla Shares and 157,816 shares of Series B Cumulative Convertible Hecla Preferred Stock which are convertible into Hecla Shares in accordance with their terms. All outstanding Hecla Shares have been duly authorized and validly issued, are fully paid and non-assessable.

Shareholder and Similar Agreements. Hecla is not party to any shareholder, pooling, voting trust or other similar agreement relating to the issued and outstanding shares in the capital of Hecla.

Reporting Status and Securities Laws Matters. Hecla is a “reporting issuer” and is not on the list of reporting issuers in default under applicable Canadian Securities Laws in all of the provinces and territories of Canada. The Hecla Shares are registered under Section 12(b) of the U.S. Exchange Act and Hecla is in compliance in all material respects with applicable U.S. Securities Laws. No delisting, suspension of trading in or cease trading order with respect to any securities of Hecla and, to the knowledge of Hecla, no inquiry or investigation (formal or informal) of Hecla or the Hecla Public Disclosure Record by any Securities Authority, is in effect or ongoing or, to the knowledge of Hecla, threatened or expected to be implemented or undertaken. The Hecla Shares are listed and posted for trading on the NYSE. Hecla is in compliance with applicable requirements of the NYSE, except where non-compliance would not result in a Hecla Material Adverse Effect or prevent or materially delay the consummation of the transactions contemplated by this Agreement or the Arrangement pursuant to the Plan of Arrangement.

Regulatory Approvals. Other than filings with the Securities Authorities, the Canadian Competition Approval, if required, and the NYSE, there are no approvals required from, or notices required to be given to, any Governmental Entity which would prevent or materially delay consummation by Hecla of the transactions contemplated by this Agreement and the Arrangement.

Consents. There are no consents or waivers required from any party under any Hecla Material Contract to which Hecla or its subsidiaries are a party in order for Hecla to proceed with the completion of the transactions contemplated by this Agreement and the Arrangement.

Public Filings. Hecla has filed or furnished, as applicable, all documents in the Hecla Public Disclosure Record required to be filed or furnished by it in accordance with applicable Securities Laws or the requirements of the NYSE. All such documents and information comprising the Hecla Public Disclosure Record, as of their respective dates (and the dates of any amendments thereto): (i) did not contain any misrepresentation; and (ii) complied in all material respects with the requirements of applicable Securities Laws and the applicable policies of the NYSE relating to continuous disclosure requirements. Hecla has not filed any confidential material change report with any Securities Authorities that at the date of this Agreement, remains confidential. Since January 1, 2020 there has been no change in a material fact or a material change (as those terms are defined under the Securities Act) in relation to Hecla, except for changes in material facts or material changes that are reflected in a subsequently filed document included in the Hecla Public Disclosure Record.

Hecla Financial Statements.

Hecla’s audited financial statements as at and for the financial years ended December 31, 2021 and December 31, 2020 (including the notes thereto and the report of the auditors thereon) and Hecla’s unaudited interim financial statements as at and for the quarter ended March 31, 2022 (including the notes thereto) (collectively the “Hecla Financial Statements”) were prepared in accordance with U.S. GAAP consistently applied and fairly present in all material respects the consolidated financial position, results of operations and changes in financial position of Hecla and its subsidiaries as of the dates thereof and for the periods indicated therein (subject, in the case of any unaudited interim financial statements, to normal period end adjustments) and reflect reserves required by U.S. GAAP in respect of all material contingent liabilities, if any, of Hecla and its subsidiaries on a consolidated basis. There has been no material change in Hecla’s accounting policies since December 31, 2021 except as disclosed in the Hecla Public Disclosure Record or as required by U.S. GAAP.

The management of Hecla has established and maintained a system of disclosure controls and procedures designed to provide reasonable assurance that information required to be disclosed by Hecla in its annual filings, interim filings or other reports filed or submitted by it under the applicable Laws imposed by Governmental Entities is recorded, processed, summarized and reported within the time periods specified in such Laws imposed by such Governmental Entities. Such disclosure controls and

Hecla maintains internal control over financial reporting. Such internal control over financial reporting is effective in providing reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with U.S. GAAP and includes policies and procedures that: (A) pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and dispositions of the assets of Hecla and its subsidiaries; (B) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with U.S. GAAP, and that receipts and expenditures of Hecla and its subsidiaries are being made only with authorizations of management and directors of Hecla and its subsidiaries, as applicable; and (C) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the assets of Hecla or its subsidiaries that could have a material effect on its financial statements.

To the knowledge of Hecla: (A) there are no material weaknesses in the design and implementation or maintenance of its internal control over financial reporting of Hecla that are reasonably likely to adversely affect the ability of Hecla to record, process, summarize and report financial information; and (B) there is no fraud, whether or not material, that involves management or other employees who have a significant role in the internal control over financial reporting of Hecla.

Since December 31, 2021, neither Hecla nor any of its subsidiaries nor, to Hecla’s knowledge, any director, officer, employee, auditor, accountant or representative of Hecla or any of its subsidiaries has received or otherwise had or obtained knowledge of any complaint, allegation, assertion, or claim, whether written or oral, regarding the accounting or auditing practices, procedures, methodologies or methods of Hecla or any of its subsidiaries or their respective internal accounting controls, including any complaint, allegation, assertion, or claim that Hecla or any of its subsidiaries has engaged in questionable accounting or auditing practices, which has not been resolved to the satisfaction of the audit committee of the Hecla Board.

Books and Records. The financial books, records and accounts of Hecla and its subsidiaries, in all material respects: (i) have been maintained, in the case of Hecla in accordance with U.S. GAAP, and in the case of its subsidiaries in accordance with generally accepted accounting principles of their respective governing jurisdictions; (ii) are stated in reasonable detail and accurately and fairly reflect the

No Undisclosed Liabilities. Other than as disclosed in the most recent Hecla Financial Statements filed, or furnished, as applicable, on SEDAR and ▇▇▇▇▇, as incurred in the ordinary course of business since the date of such financial statements, as disclosed in this Agreement, or inter-company indebtedness, liabilities and guarantees among Hecla and its subsidiaries, Hecla and its subsidiaries have no outstanding material indebtedness or material liabilities and are not party to or bound by any material suretyship, guarantee, indemnification or assumption agreement, or endorsement of, or any other similar commitment with respect to the material obligations, liabilities or indebtedness of any person.

No Hecla Material Adverse Effect. Since December 31, 2021, except as disclosed in the Hecla Public Disclosure Record prior to the date of this Agreement, there has been no Hecla Material Adverse Effect and no effect, change, development, event or occurrence that would, individually or in the aggregate, reasonably be expected to cause a Hecla Material Adverse Effect.

Litigation. There are no Proceedings pending or, to the knowledge of Hecla, threatened affecting Hecla or any of its subsidiaries or affecting any of the Hecla Concessions, property or assets at law or in equity, including matters arising under Environmental Laws, which, if adversely determined, would, individually or in the aggregate, result in a Hecla Material Adverse Effect or prevent or materially delay the consummation of the transactions contemplated by this Agreement or the Arrangement. Neither Hecla nor any of its subsidiaries nor their respective assets or properties is subject to any outstanding judgement, order, writ, injunction or decree which, individually or in the aggregate, would result in a Hecla Material Adverse Effect or which would prevent or materially delay consummation of the transactions contemplated by this Agreement or the Arrangement pursuant to the Plan of Arrangement.

Technical Reports.

The S-K 1300 Technical Report Summaries filed by Hecla as part of the Hecla Public Disclosure Record (collectively, the “Hecla Technical Reports”) representing the most recent technical report summaries for the properties material to Hecla at the respective time of filing thereof complied in all material respects with the requirements of the SEC, were prepared in accordance with accepted mining, engineering, geoscience and other applicable industry standards and did not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances in which they were made, not misleading.

Hecla or its corporate predecessors made available to the authors of the Hecla Technical Reports, prior to the issuance thereof, for the purpose of preparing such report, all information requested by them, and none such information contained any misrepresentation at the time such information was so provided. All of the material assumptions underlying the resource estimates in the Hecla Technical Reports are reasonable and appropriate.

There has been no change, to Hecla’s knowledge, in mineral resources, mineral reserves or economic analysis from the Hecla Technical Reports that constitutes a material change in relation to Hecla or that otherwise would require the filing of new technical reports.

Expropriation. Since December 31, 2021, no written notice or proceeding in respect of the taking, condemnation or expropriation by any Governmental Entity of any material part of the property or assets of Hecla or any of its subsidiaries, including the Hecla Concessions and Hecla Lands, has been given or commenced, nor, to the knowledge of Hecla, is any such proceeding or notice threatened.

Permits. Each of Hecla and its subsidiaries has obtained, and is in compliance with, all Permits required by applicable Laws, other than Permits disclosed in the Hecla Public Disclosure Record or with which non-compliance with would not result in a Hecla Material Adverse Effect, or necessary to conduct its current business as is now being conducted, other than Permits which non-compliance with would not result in a Hecla Material Adverse Effect. To the knowledge of Hecla, there are no facts, events or circumstances that would reasonably be expected to result in a revocation of, or failure to renew in the ordinary course, such Permits as are necessary to conduct Hecla’s or its subsidiaries’ current business as is now being conducted, except as disclosed in the Hecla Public Disclosure Record and for such revocations or failure to renew which, individually or in the aggregate, would not result in a Hecla Material Adverse Effect.

Environmental Matters. To the knowledge of Hecla, each of Hecla and its subsidiaries and their respective businesses, operations, and properties:

is in compliance in all material respects with all Environmental Laws and all terms and conditions of all Environmental Permits;

has not received any order, request or notice from any person alleging a material violation of any Environmental Law;

(A) is not a party to any material litigation or administrative proceeding, nor to Hecla’s knowledge is any material litigation or administrative proceeding threatened against it or its property or assets, which in either case: (1) asserts or alleges that it violated any Environmental Laws; (2) asserts or alleges that it is required to clean up, remove or take remedial or other response action due to the Release of any Hazardous Substances; or (3) asserts or alleges that it is required to pay all or a portion of the cost of any past, present or future cleanup, removal or remedial or other response action which arises out of or is related to the Release of any Hazardous Substances; (B) has no knowledge of any conditions existing currently which could reasonably be expected to subject it to material damages, penalties, injunctive relief or cleanup costs under any Environmental Laws or which require or are likely to require cleanup, removal, remedial action or other material response by it pursuant to applicable Environmental Laws; and (C) is not subject to any material judgment, decree, order or citation related to or arising out of applicable Environmental Law and has not been named or listed as a potentially responsible party by any Governmental Entity in a material matter arising under any Environmental Laws; and

is not involved in operations and does not know of any facts, circumstances or conditions, including the Release of any Hazardous Substance that would reasonably be expected to result in any material Environmental Liabilities.

Compliance with Laws. Hecla and its subsidiaries have complied in all material respects with and are not in violation in any material respect of any applicable Laws, other than non-compliance or violations which would not, individually or in the aggregate, result in a Hecla Material Adverse Effect or which would prevent or materially delay consummation of the transactions contemplated by this Agreement or the Arrangement.

Winding Up. No order has been made, petition presented or meeting convened for the purpose of winding up of Hecla or any of its subsidiaries, or for the appointment of any provisional liquidator or in relation to any other process whereby the business is terminated and the assets of Hecla or any of its subsidiaries are distributed amongst the creditors, shareholders or other contributors, and there are no proceedings under any applicable insolvency, bankruptcy, reorganisation or similar laws in any relevant jurisdiction, and no events have occurred which, under applicable Laws, would be reasonably likely to justify any such cases or proceedings, that would, individually or in the aggregate, reasonably be expected to cause a Hecla Material Adverse Effect.

Administration and Receivership. To the knowledge of Hecla, no person has taken any step, legal proceeding or other procedure with a view to the appointment of an administrator, whether out of court or otherwise, in relation to Hecla or any of its subsidiaries, and no receiver (including any administrative receiver) has been appointed in respect of the whole or any part of any of the property, assets or undertaking of Hecla or any of its subsidiaries nor has any such order been made (including, in any relevant jurisdiction, any other order by which, during the period it is in force, the affairs, business and assets of the company concerned are managed by a person appointed by any Governmental Entity).

Voluntary Arrangement, Etc. Neither Hecla nor any of its material subsidiaries has made any voluntary arrangement with any of its creditors or is insolvent or unable to pay its debts as they fall due.

Issuance of Hecla Shares. The Hecla Shares to be issued as part of the Consideration will, when issued pursuant to the Arrangement, be duly authorized and validly issued as fully paid and non-assessable common shares in the capital of Hecla, free and clear of all Liens (other than Liens created by the holders thereof), freely tradeable under Securities Laws and shall not be subject to resale restrictions under applicable Securities Laws (other than as applicable to control persons or pursuant to section 2.6 of National Instrument 45-102 Resale of Securities) and will be freely transferable securities under U.S. Securities Laws (other than to persons who are, have been within 90 days of the Effective Time, or, at the Effective Time become, “affiliates” of Hecla, as such term is defined in Rule 144 under the U.S. Securities Act) and listed and posted for trading on the NYSE and are not and will not be subject to or issued in violation of, any pre-emptive rights or back-in rights. Hecla is not and has never been a shell company subject to Rule 144(i) under the U.S. Securities Act.

Insurance. Hecla and its subsidiaries have in place reasonable and prudent insurance policies appropriate for its size, nature and stage of operations.

Corrupt Practices Legislation.

Neither Hecla nor any of its subsidiaries, nor, to Hecla’s knowledge, any of their respective directors, officers, agents, employees, consultants or other persons acting on behalf of Hecla or any of its subsidiaries has offered or given, and Hecla is not aware of or does not have any knowledge of any person that has offered or given on its behalf, anything of value to any official of a Governmental Entity, any political party or official thereof or any candidate for political office, any customer or member of any Governmental Entity, or any other person, in any such case while knowing or having reason to know that all or a portion of such money or thing of value may be offered, given or promised, directly or indirectly, for the purpose of any of the following:

influencing any action or decision of such person, in such person’s official capacity, including a decision to fail to perform such person’s official function in order to obtain or retain an advantage for Hecla or any of its subsidiaries in the course of business;

inducing such person to use such person’s influence with any Governmental Entity to affect or influence any act or decision of such Governmental Entity to assist Hecla or any of its subsidiaries in obtaining or retaining business for, with, or directing business to, any person or otherwise to obtain or retain an advantage in the course of business; or

where such payment would constitute a bribe, rebate, payoff, influence payment, kickback or illegal or improper payment to assist Hecla or the subsidiary in obtaining or retaining business for, with, or directing business to, any person.

There have been no actions taken by Hecla, any of its subsidiaries or, to the knowledge of Hecla, by any persons on behalf of Hecla or any of its subsidiaries, that would cause Hecla or its subsidiaries or such persons to be in violation of the Corruption Acts or any similar legislation in any jurisdiction in which Hecla or any of its subsidiaries conduct their business and to which Hecla or any of its subsidiaries may be subject.

The financial records of Hecla and its subsidiaries have at all times been maintained in compliance with the Corruption Acts.

There are no proceedings or investigations under the Corruption Acts or any similar legislation in any jurisdiction in which Hecla and its subsidiaries conduct their business pending against Hecla or any of its subsidiaries, nor any of their respective directors, officers, agents, employees, consultants or other persons acting on behalf of Hecla or any of its subsidiaries, or to the knowledge of Hecla, threatened against or affecting, Hecla or any of its subsidiaries or any of their respective directors, officers, agents, employees, consultants or other persons acting on behalf of Hecla or any of its subsidiaries.

Anti-Money Laundering. The operations of Hecla and its subsidiaries are in material compliance with the financial record-keeping and reporting requirements of the anti-money laundering and anti-terrorism statutes of all applicable jurisdictions, the rules and regulations thereunder and any related or similar rules, regulations or guidelines, issued, administered or enforced by any Governmental Entities to which Hecla or the subsidiary is subject, including the Money Laundering Laws, and no action, suit, proceeding, investigation or notice by, before or from any Governmental Entity involving Hecla or any of its subsidiaries with respect to the Money Laundering Laws is pending.

NGOs and Community Groups. No material dispute between Hecla or any of its subsidiaries and any non-governmental organization, community, community group, First Nations, aboriginal or indigenous peoples or aboriginal or indigenous group exists or, to the knowledge of Hecla, is threatened with respect to any of Hecla’s or any of its subsidiaries’ properties or operations.

Investment Canada Act. Hecla is a “WTO investor” within the meaning of the Investment Canada Act.

Survival of Representations and Warranties

Covenants of Alexco Regarding the Conduct of Business

Alexco covenants and agrees that, during the period from the date of this Agreement, until the earlier of the Effective Time and the time at which this Agreement is terminated in accordance with its terms, except: (i) as expressly required by this Agreement or the Plan of Arrangement; (ii) as expressly set forth in the Alexco Disclosure Letter; or (iii) with the prior written consent of Hecla, such consent not to be unreasonably withheld, conditioned or delayed, Alexco shall and shall cause each of its subsidiaries to:

conduct their respective businesses only in, and not take any action except in, the ordinary course of business;

use commercially reasonable efforts to maintain and preserve intact its business organization, goodwill, employees, properties, business relationships and assets in all material respects, keep available the services of its officers, employees and contractors as a group and maintain satisfactory relationships with suppliers, customers, First Nations, Governmental Entities and others having business relationships with them;

except as set forth in the Alexco Disclosure Letter, refrain from undertaking any development or exploration related activities unless otherwise consulted with and agreed to in advance by Hecla and Alexco, such agreement not to be unreasonably withheld, delayed or conditioned;

except as set forth in the Alexco Disclosure Letter, fully cooperate and consult through meetings with Hecla, as Hecla may reasonably request, to allow Hecla to monitor, and provide input with respect to the direction and control of, any activities relating to development of Alexco and its subsidiaries’ projects or any exploration of any properties; and

provide Hecla and its legal counsel with a reasonable opportunity to review and comment on any proposed public disclosure of exploration results and any other scientific and technical information prior to such disclosure, and give due and reasonable consideration to any comments made by Hecla and its legal counsel.

Without limiting the generality of Section 5.1(a), Alexco covenants and agrees that, during the period from the date of this Agreement, until the earlier of the Effective Time and the time at which this Agreement is terminated in accordance with its terms, except: (i) as expressly required by this Agreement or the Plan of Arrangement; (ii) as expressly set forth in the Alexco Disclosure Letter (which shall make reference to the applicable section, subsection, paragraph or subparagraph below in respect of which such qualification is being made); (iii) as required by applicable Law; or (iv) with the prior written consent of Hecla, such consent not to be unreasonably withheld, conditioned or delayed, Alexco shall not and shall cause each of its subsidiaries not to:

amend or propose to amend its notice of articles, articles or other comparable organizational or constating documents;

split, combine or reclassify any Alexco Shares or other securities of Alexco or any of its subsidiaries;

declare, set aside or pay any dividend or other distribution or payment (whether in cash, securities or property or any combination thereof) in respect of any shares in the capital of Alexco owned by any person or the securities of any of its subsidiaries, other than any dividends payable by a subsidiary to Alexco or any wholly-owned subsidiary of Alexco;

issue, grant, award, deliver, sell, pledge, dispose of or otherwise encumber, or agree to issue, grant, award, deliver, sell, pledge, dispose of or otherwise encumber any Alexco Shares or other equity or voting interests or any options or any options, warrants, calls, appreciation rights, convertible securities or similar rights convertible into or exchangeable or exercisable for, or otherwise evidencing a right to acquire, Alexco Shares or other equity or voting interests or other securities of Alexco or any of its subsidiaries (including, for certainty, any Alexco Options, Alexco DSUs and Alexco RSUs), other than pursuant to the valid exercise or vesting of Alexco Options, Alexco DSUs and Alexco RSUs outstanding on the date of this Agreement in accordance with their terms, and pursuant to the Private Placement;

redeem, purchase or otherwise acquire, or offer to redeem, purchase or otherwise acquire, any Alexco Shares or other securities of Alexco or any of its subsidiaries;

amend the terms of any of the Alexco Shares or other securities of Alexco or any of its subsidiaries;

reduce the stated capital of any Alexco Shares or other securities of Alexco or any of its subsidiaries;

incorporate, acquire or create any new subsidiary;

adopt or propose a plan of liquidation or resolution providing for the liquidation or dissolution of Alexco or any of its subsidiaries;

make any changes in its accounting methods, principles, policies or practices or adopt new accounting methods, principles, policies or practices, in each case except as required by applicable Laws or IFRS;

sell, pledge, hypothecate, lease, license, sell and lease back, mortgage, dispose of or encumber or otherwise transfer, any assets, securities, properties, interests or businesses of Alexco or any of its subsidiaries, including for these purposes mineral product from any Alexco Concessions or Alexco Lands, other than in connection with the Hecla Secured Loan;

reorganize, amalgamate or merge Alexco or any of its subsidiaries with any other person;

acquire (by merger, amalgamation, consolidation, acquisition of shares or assets or otherwise) or agree (in one transaction or in a series of related transactions) to acquire, directly or indirectly, any person securities, interests or business of any person, or make any investment or agree to make an investment, directly or indirectly (in one transaction or in a series of related transactions), either by the purchase of securities of, or contributions of capital to, any other person (other than wholly-owned subsidiaries as of the date of this Agreement);

acquire or agree to acquire, directly or indirectly, any assets or properties of any person other than in the ordinary course of business as currently conducted as of the date of this Agreement;

incur, create, assume or otherwise become liable for, any indebtedness for borrowed money or any other liability or obligation or issue any debt securities or assume, guarantee, endorse or otherwise become responsible for the obligations of any other person or make any loans, capital contributions, investments or advances, other than the Hecla Secured Loan;

except as required by this Agreement, applicable Law, the terms of the Alexco Equity Incentive Plan or Alexco Benefit Plans: (A) grant, accelerate, or increase any severance, change of control or termination pay to (or amend any existing arrangement relating to the foregoing with) any director, officer, employee or individual contractor or consultant of Alexco or any of its subsidiaries; (B) grant, accelerate, or increase any payment, award (equity or otherwise), indemnification or other benefits payable to, or for the benefit of, any director, officer, employee or individual contractor or consultant of Alexco or any of its subsidiaries; (C) increase the coverage, contributions, funding requirements or benefits available under the Alexco Equity Incentive Plan or Alexco Benefit Plans or create any new benefit;

negotiate, enter into, extend, amend or terminate any employment, severance, consulting, termination or other similar agreement with any of its officers, directors, employees, agents or individual contractors or consultants, any collective bargaining agreement or any Alexco Benefit Plan, in each case, other than: (A) in connection with terminating officers, directors, employees, agents or individual contractors or consultants for cause; (B) amendments required by Law; or (C) compensation arrangements that are generally consistent with past practice and entered into with employees hired after the date of this Agreement and who earn an annualized base salary or wage not greater than $50,000 (or its equivalent);

make or forgive any loans or advances to any of its officers, directors, employees, agents or individual contractors or consultants;

make any bonus or profit sharing distribution or similar payment of any kind;

hire any person earning an annualized base salary or wage greater than $50,000 (or its equivalent) or terminate, except for cause, the employment of any person earning an annualized base salary or wage greater than $50,000 (or its equivalent);

settle, pay, discharge, satisfy, compromise, waive, assign or release: (A) any material action, claim, liability or proceeding; (B) any claims, liabilities or obligations in an amount in excess of $50,000 (whether individually or in the aggregate), except claims, liabilities or obligations reflected or reserved against in the Alexco Financial Statements; or (C) any material rights, claims or benefits of Alexco or any of its subsidiaries;

enter into or extend any agreement or arrangement that provides for: (A) any limitation or restriction on the ability of Alexco or any of its subsidiaries or, following the Effective Time, the ability of any of Alexco’s affiliates, to engage in any type of activity or business, (B) any limitation or restriction on the manner in which, or the localities in which, all or any portion of the business of Alexco or any of its subsidiaries or, following the Effective Time, all or any portion of the business of any of Alexco’s affiliates, is or would be conducted, or (C) any limitation or restriction on the ability of Alexco or any of its subsidiaries or, following the Effective Time, the ability of any of Alexco’s affiliates, to solicit suppliers, customers, employees, contractors or consultants;

waive, release or condition any material non-compete, non-solicitation, non-disclosure, confidentiality or other restrictive covenant owed to Alexco;

negotiate, enter into, extend, amend or terminate, any agreement that has the effect of creating a joint venture, partnership, strategic alliance or similar relationship between Alexco or any of its subsidiaries and another person, except in the ordinary course of business;

negotiate, enter into, extend, amend or terminate any agreement, commitment or understanding with any First Nations, aboriginal or indigenous peoples or aboriginals or indigenous groups;

other than as is necessary to comply with applicable Laws, any written employment contract in effect on the date of this Agreement, the Alexco Equity Incentive Plans or Alexco Benefit Plans, engage in any transaction with any related parties;

(A) enter into any agreement that if entered into prior to the date of this Agreement, would be a Alexco Material Contract; (B) modify, amend in any material respect, transfer or terminate any Alexco Material Contract, or waive, release or assign any material rights or claims thereto or thereunder; or (C) fail to enforce any breach or threatened breach of any Alexco Material Contract;

initiate any material discussion, negotiations or filings with any Governmental Entity regarding any matter (including with respect to the Arrangement or the transactions contemplated by this Agreement);

incur, or commit to, capital expenditures in excess of the amounts set out in Schedule 5.1(b)(xxix);

enter into, extend, amend or terminate any material interest rate, currency, equity or commodity swaps, ▇▇▇▇▇▇, derivatives, forward sales contracts or other similar financial instruments, other than in the ordinary course of business;

(A) take any action inconsistent with past practice relating to the filing of any Return or the withholding, collecting, remitting and payment of any Tax; (B) amend any Return or change any of its methods of reporting income, deductions or accounting for income Tax purposes from those employed in the preparation of any Return, except as may be required pursuant to applicable Law; (C) make or revoke any material election relating to Taxes, other than any election that has yet to be made in respect of any event or circumstance occurring prior to the date of the Agreement; (D) enter into any Tax sharing, Tax allocation, Tax related waiver or Tax indemnification agreement; or (E) settle (or offer to settle) any Tax claim, audit, proceeding or re- assessment;

(A) take any action or fail to take any action which action or failure to act would, or would reasonably be expected to, result in the loss, expiration or surrender of, or the loss of any material benefit under, or reasonably be expected to cause any Governmental Entities to institute proceedings for the suspension, revocation or limitation of material rights under, any Permits necessary to conduct its businesses as now conducted; (B) or fail to prosecute in a commercially reasonable manner any pending applications to any Governmental Entities for material Permits;

take any action or fail to take any action that is intended to, or would reasonably be expected to, individually or in the aggregate, prevent, materially delay or materially impede the ability of Alexco to consummate the Arrangement or the other transactions contemplated by this Agreement; and

agree, resolve or commit to do any of the foregoing.

Additional Covenants of Alexco

Alexco shall cause the current insurance (or re-insurance) policies maintained by or for the benefit of Alexco or any of its subsidiaries, including directors’ and officers’ insurance, not to be cancelled or terminated or any of the coverage thereunder to lapse prior to the Effective Time, unless simultaneously with such termination, cancellation or lapse, replacement policies underwritten by insurance or re-insurance companies of nationally recognized standing having comparable deductions and providing coverage equal to or greater than the coverage under the cancelled, terminated or lapsed policies for substantially similar premiums are in full force and effect; provided that, subject to Section 7.5.1, none of Alexco or any

Alexco shall provide Hecla with prompt written notice of any change, effect, event or occurrence that, individually or in the aggregate, has resulted in, or would reasonably be expected to result in, a Alexco Material Adverse Effect.

Alexco shall promptly notify Hecla of: (i) any material communications (whether oral or written) from a Governmental Entity, including a copy of any written communication, and (ii) any opposition, concerns or threats raised or brought by non-governmental organizations, communities, community groups, First Nations, aboriginal or indigenous peoples or aboriginals or indigenous groups in respect of Alexco’s or any of its subsidiaries’ current or planned operations that could reasonably be expected to materially impact such operations or title to any of the Alexco Concessions.

The Parties acknowledge and agree that all Alexco Options, Alexco RSUs and Alexco DSUs that are not converted or exercised, whether conditionally or otherwise, prior to the Effective Time shall be treated in accordance with the provisions of the Plan of Arrangement, and Alexco shall take all such reasonable steps as may be necessary or desirable to give effect to the foregoing.

Alexco shall prepare, or shall cause to be prepared, and shall file prior to the Effective Date all sales and use Returns of Alexco and its subsidiaries that are required by Law to be filed on or before the Effective Date or that have not been timely filed when due, and shall remit all sales and use Taxes that are required to be paid in respect of such Returns.

Alexco shall keep Hecla reasonably informed, on a current basis, of any events, discussions, notices or changes with respect to any Tax investigation (other than ordinary course communications which could not reasonably be expected to be material to Alexco or any of its subsidiaries).

Covenants of Hecla Regarding the Conduct of Business

Hecla covenants and agrees that, during the period from the date of this Agreement, until the earlier of the Effective Time and the time at which this Agreement is terminated in accordance with its terms, except: (i) as expressly required by this Agreement or the Plan of Arrangement; (ii) as required by applicable Law; or (iii) with the prior written consent of Alexco, such consent not to be unreasonably withheld, conditioned or delayed, Hecla shall and shall cause each of its subsidiaries to conduct its business in the ordinary course and in accordance with Law, and Hecla shall use commercially reasonable efforts to maintain and preserve intact its and its subsidiaries’ business organization, assets, properties, employees,

Without limiting the generality of Section 5.3(a), Hecla covenants and agrees that, during the period from the date of this Agreement, until the earlier of the Effective Time and the time at which this Agreement is terminated in accordance with its terms, except: (i) as expressly required by this Agreement or the Plan of Arrangement; (ii) as required by applicable Law; or (iii) with the prior written consent of Alexco, such consent not to be unreasonably withheld, conditioned or delayed, Hecla shall not and shall cause each of its subsidiaries not to:

amend its organizational or constating documents in any manner that would adversely affect the value of the Consideration;

split, combine, or reclassify Hecla Shares;

reorganize, amalgamate or merge Hecla, or, to the extent prejudicial to the Arrangement or to Alexco, any subsidiary of Hecla;

adopt a plan of liquidation or resolutions providing for the liquidation or dissolution of Hecla; or

authorize, agree or resolve to do any of the foregoing.

Hecla shall provide Alexco with prompt written notice of any change, effect, event or occurrence that, individually or in the aggregate, has resulted in, or would reasonably be expected to result in, a Hecla Material Adverse Effect.

Additional Covenants of Hecla

Mutual Covenants of the Parties Relating to the Arrangement

it shall, and shall cause its subsidiaries to, use commercially reasonable efforts to satisfy (or cause the satisfaction of) the conditions precedent to its obligations hereunder as set forth in Article 6 to the extent the same is within its control and to take, or cause to be taken, all other action and to do, or cause to be done, all other things necessary, proper or advisable under all applicable Laws to complete the Arrangement, including using its commercially reasonable efforts to promptly: (i) obtain all Key Consents and Approvals; (ii) obtain all other necessary waivers, consents and approvals required to be obtained by it or any of its subsidiaries from parties to the Alexco Material Contracts; (iii) obtain all necessary any material Permits (including Regulatory Approvals) required to be obtained by it or any of its subsidiaries under applicable Laws; (iv) fulfill all conditions and satisfy all provisions of this Agreement and the Arrangement required to be satisfied by it; (v) effect or cause to be effected all necessary registrations, filings and submissions of information requested by Governmental Entities required to be effected by it in connection with the Plan of Arrangement; (vi) oppose, lift or rescind any injunction or restraining order against it or other order or action against it seeking to stop, or otherwise adversely affecting its ability to make and complete, the Plan of Arrangement; and (vii) co-operate with the other Party in connection with the performance by it and its subsidiaries of their obligations hereunder;

it shall not take any action, shall refrain from taking any action, and shall not permit any action to be taken or not taken, which is inconsistent with this Agreement or which would reasonably be expected to materially impede or materially delay the consummation of Arrangement or the other transactions contemplated by this Agreement or the Arrangement;

it shall use commercially reasonable efforts to: (i) defend all lawsuits or other legal, regulatory or other proceedings against itself or any of its subsidiaries challenging or affecting this Agreement or the consummation of the transactions contemplated hereby; (ii) appeal, overturn or have lifted or rescinded any injunction or restraining order or other order, including Orders, relating to itself or any of its subsidiaries which may materially adversely affect the ability of the Parties to consummate the Arrangement; and (iii) appeal or overturn or otherwise have lifted or rendered non-applicable in respect of the Arrangement, any Law that makes consummation of the Arrangement illegal or otherwise prohibits or enjoins Alexco or Hecla from consummating the Arrangement;

it shall carry out the terms of the Interim Order and Final Order applicable to it and use commercially reasonable efforts to comply promptly with all requirements which applicable Laws may impose on it or its subsidiaries or affiliates with respect to the transactions contemplated hereby; and

promptly notify the other Party of:

any communication from any person alleging that the consent of such person (or another person) is or may be required in connection with the Arrangement (and the response thereto from such Party, its subsidiaries or its Representatives);

any material communication from any Governmental Entity in connection with the Arrangement (and the response thereto from such Party, its subsidiaries or its Representatives); and

any litigation threatened or commenced against or otherwise affecting such Party or any of its subsidiaries that is related to the Arrangement.

Pre-Acquisition Reorganization

Alexco agrees to effect such reorganization of its business, operations, subsidiaries and assets or such other transactions (each, a “Pre-Acquisition Reorganization”) as Hecla may reasonably request prior to the Effective Date, and the Plan of Arrangement, if required, shall be modified accordingly; provided, however, that unless otherwise agreed by Hecla and Alexco (i) any Pre-Acquisition Reorganization is not, in the opinion of Alexco or Alexco’s counsel, acting reasonably, prejudicial to Alexco or Alexco Shareholders, (ii) any Pre-Acquisition Reorganization does not require Alexco to obtain the approval of Alexco Shareholders, (iii) any Pre-Acquisition Reorganization shall not, in the opinion of Alexco, acting reasonably, impair, prevent, impede or materially delay the consummation of the Arrangement, (iv) any Pre-Acquisition Reorganization shall not, in the opinion of Alexco, acting reasonably, materially interfere with the ongoing operations of Alexco or its subsidiaries, (v) any Pre-Acquisition Reorganization shall not require Alexco or any of its subsidiaries to contravene any applicable Laws, their respective organizational documents or any Contract or Permit, (vi) Alexco and its subsidiaries shall not be obligated to take any action that would reasonably be expected to result in any Taxes being imposed on, or any adverse Tax or other consequences to, any Alexco Shareholder or the holders of Alexco Options, Alexco DSUs or Alexco RSUs that are incrementally greater than the Taxes or other consequences to such party in connection with the consummation of the Arrangement in the absence of any Pre-Acquisition Reorganization, (vii) any Pre-Acquisition Reorganization is effected immediately prior to, contemporaneously with, or within two Business Days prior to the Effective Date, and (viii) Hecla agrees that it will be responsible for all reasonable costs and expenses associated with any Pre-Acquisition Reorganization to be carried out at its request. Hecla shall provide written notice to Alexco of any proposed Pre-Acquisition Reorganization in reasonable detail at least 15 Business Days prior to

Alexco agrees that it shall, and shall cause each of its subsidiaries to, cooperate with Hecla in good faith to plan, prepare and implement such Pre-Acquisition Reorganizations as are desirable and requested by Hecla in accordance with this Section 5.6.

Regulatory Approvals

If Canadian Competition Approval is required:

within 10 Business Days after the date of this Agreement or such other date as the Parties may reasonably agree, Hecla shall prepare and file with the Commissioner a request for an Advance Ruling Certificate or, in the alternative, a No Action Letter and a waiver under paragraph 113(c) of the Competition Act and Alexco shall provide such assistance as may be reasonably requested in connection with the preparation of such filing;

if Alexco and Hecla mutually agree, each shall prepare and file notifications under Part IX of the Competition Act with the Commissioner with respect to the transactions contemplated by this Agreement; and

each of Alexco and Hecla shall provide to each Governmental Entity all such information as may be requested by any Governmental Entity in connection with the Canadian Competition Approval.

All filing fees (including any Taxes thereon) in respect of any filing made to any Governmental Entity in respect of any Regulatory Approvals shall be paid by Hecla.

With respect to obtaining the Regulatory Approvals, each of Alexco and Hecla shall cooperate with one another and shall provide such assistance as any other Party may reasonably request in connection with obtaining the Regulatory Approvals. In particular:

no Party shall extend or consent to any extension of any applicable waiting or review period or enter into any agreement with a Governmental Entity to not consummate the transactions contemplated by this Agreement, except upon the prior written consent of the other Party;

the Parties shall exchange drafts of all submissions, material correspondence, filings, presentations, applications, plans, consent agreements and other material documents made or submitted to or filed with any Governmental Entity in respect of the transactions contemplated by this Agreement, will consider in good faith any suggestions made by the other Party and its counsel and will provide the other Party and its counsel with final copies of all such submissions, material correspondence, filings, presentations, applications, plans, consent agreements and other material documents, and all pre-existing business records or other documents, submitted to or filed with any Governmental Entity in respect of the transactions contemplated by this Agreement; provided, however, that this obligation shall not extend to (a) legally privileged information, or (b) information indicated by either Party to be competitively sensitive, in either case, which information shall be provided on an external counsel-only basis;

each Party will keep the other Party and their respective counsel fully apprised of all substantive written (including email) and oral communications and all meetings with any Governmental Entity and their staff in respect of the Regulatory Approvals, and will not participate in such material communications or meetings without giving the other Party and their respective counsel the opportunity to participate therein; provided, however, that where competitively sensitive information may be discussed or communicated, in either case the other Party’s external legal counsel shall be provided with any such communications or information on an external counsel-only basis and shall have the right to participate in any such meetings on an external counsel-only basis.

The Parties shall not enter into any transaction, investment, agreement, arrangement or joint venture or take any other action, the effect of which would reasonably be expected to make obtaining the Regulatory Approvals materially more difficult or challenging, or reasonably be expected to materially delay the obtaining of the Regulatory Approvals.

Each Party shall use its commercial reasonable efforts to ensure that the Section 3(a)(10) Exemption and exemptions from applicable securities Laws of any state of the United States are available for the issuance of Hecla Shares pursuant to the Plan of Arrangement.

Mutual Conditions Precedent

the Alexco Securityholder Approval shall have been obtained in accordance with the Interim Order;

the Interim Order and the Final Order shall each have been obtained on terms consistent with this Agreement, and shall not have been set aside or modified in a manner unacceptable to Alexco and Hecla, acting reasonably, on appeal or otherwise;

no Governmental Entity shall have enacted, issued, promulgated, enforced or entered any Order or Law which is then in effect and has the effect of making the Arrangement illegal or otherwise preventing or prohibiting consummation of the Arrangement.

the Hecla Shares to be issued to Alexco Shareholders in exchange for their Alexco Shares pursuant to the Plan of Arrangement shall be (i) exempt from the registration requirements of the U.S. Securities Act in reliance upon the Section 3(a)(10) Exemption and exemptions from applicable securities Laws of any state of the United States, (ii) shall be freely transferable under applicable U.S. Securities Laws and shall not be “restricted securities” within the meaning of Rule 144 of the U.S. Securities Act (other than as applicable to persons who are, have been within 90 days of the Effective Time, or, at the Effective Time become, “affiliates” of Hecla, as such term is defined in Rule 144 under the U.S. Securities Act), and (iii) shall be registered to the extent required by Section 12(b) of the U.S. Exchange Act; provided, however, that Alexco shall not be entitled to rely on the provisions of this Section 6.1(d) in failing to complete the transactions contemplated by this Agreement in the event that Alexco fails to advise the Court prior to the hearing in respect of the Final Order, as required by the terms of the Section 3(a)(10) Exemption; provided, further, that Hecla will rely on the Section 3(a)(10) Exemption for the issuance of such securities, based on the Court’s approval of the Arrangement, and comply with the requirements set forth in Section 2.3;

the Canadian Competition Approval shall have been obtained, if required; and

the distribution of the Hecla Shares pursuant to the Arrangement shall be exempt from the prospectus and registration requirements of applicable Securities Laws by virtue of applicable exemptions under Securities Laws and there shall be no resale restrictions on such Hecla Shares under applicable Securities Laws, except in respect of those holders who are subject to restrictions on resale as a result of being a “control person” under applicable Securities Laws.

Additional Conditions Precedent to the Obligations of Hecla

the representations and warranties of Alexco set forth in:

Section 3.1(a) [Board Recommendation], 3.1(b) [Fairness Opinion], 3.1(c) [Organization and Qualification], 3.1(d) [Authority Relative to this Agreement], 3.1(e) [No Violation], 3.1(i) [Ownership of Subsidiaries], 3.1(p) [No Alexco Material Adverse Effect], 3.1(u)(iii) [Alexco Concessions and Alexco Lands] and 3.1(qq) [Brokers] shall be true and correct in all respects as of the Effective Time as if made as at and as of such time (except that any such representation and warranty that by its terms speaks specifically as of the date of this Agreement or another date shall be true and correct in all respects as of such date);

Section 3.1(f) [Capitalization] shall be true and correct in all respects (except for de minimis inaccuracies) as of the Effective Time as if made as at and as of such time; and

the other provisions of this Agreement shall be true and correct in all respects (disregarding for purposes of this clause (iii) any materiality qualification or the Alexco Material Adverse Effect qualification contained in any such representation or warranty) as of the Effective Time as if made at and as of such time (except that any such representation and warranty that by its terms speaks specifically as of the date of this Agreement or another date shall be true and correct in all respects as of such date), except in the case of this clause (iii) where the failure to be so true and correct in all respects, individually or in the aggregate, would not have a Alexco Material Adverse Effect,

and Alexco shall have provided to Hecla a certificate of two senior officers of Alexco certifying (on Alexco’s behalf and without personal liability) the foregoing dated the Effective Date;

Alexco shall have complied in all material respects with its covenants herein to be complied with by it prior to the Effective Time Alexco shall have provided to Hecla a certificate of two senior officers of Alexco certifying (on Alexco’s behalf and without personal liability) compliance with such covenants dated the Effective Date;

since the date of this Agreement, there shall not have occurred any Alexco Material Adverse Effect;

there shall be no action or proceeding pending by a Governmental Entity that is reasonably likely to:

enjoin or prohibit the Hecla’ ability to acquire, hold, or exercise full rights of ownership over, any Alexco Shares, including the right to vote Alexco Shares; and

if the Arrangement is consummated, have a Alexco Material Adverse Effect; and

Dissent Rights shall not have been validly exercised by holders of more than 5% of the Alexco Shares.

Additional Conditions Precedent to the Obligations of Alexco

the representations and warranties of Hecla set forth in:

Section 4.1(a) [Organization and Qualification], 4.1(b) [Authority Relative to this Agreement], 4.1(c) [No Violation], 4.1(g) [Ownership of Subsidiaries], 4.1(m) [No Hecla Material Adverse Effect] and 4.1(w) [Issuance of Hecla Shares] shall be true and correct in all respects as of the Effective Time as if made as at and as of such time (except that any such representation and warranty that by its terms speaks specifically as of the date of this Agreement or another date shall be true and correct in all respects as of such date);

Section 4.1(d) [Capitalization] shall be true and correct in all respects (except for de minimis inaccuracies) as of the Effective Time as if made as at and as of such time; and

the other provisions of this Agreement shall be true and correct in all respects (disregarding for purposes of this clause (iii) any materiality qualification or the Hecla Material Adverse Effect qualification contained in any such representation or warranty) as of the Effective Time as if made at and as of such time (except that any such representation and warranty that by its terms speaks specifically as of the date of this Agreement or another date shall be true and correct in all respects as of such date), except in the case of this clause (iii) where the failure to be so true and correct in all respects, individually or in the aggregate, would not have a Hecla Material Adverse Effect,

and Hecla shall have provided to Alexco a certificate of two senior officers of Hecla certifying (on the Hecla’ behalf and without personal liability) the foregoing dated the Effective Date;

Hecla shall have complied in all material respects with its covenants herein to be complied with by it prior to the Effective Time Hecla shall have provided to Alexco a certificate of two senior officers of Hecla certifying (on Hecla’ behalf and without personal liability) compliance with such covenants dated the Effective Date;

since the date of this Agreement, there shall not have been any Hecla Material Adverse Effect;

Hecla shall have complied with its obligations under Section 2.9; and

Hecla shall have delivered evidence to Alexco of the conditional approval of the listing and posting for trading on the NYSE of the Hecla Shares to be issued as Consideration pursuant to the Plan of Arrangement.

Satisfaction of Conditions

Notice of Breach

cause any of the representations or warranties of such Party contained herein to be untrue or inaccurate in any respect on the date of this Agreement, or at the Effective Time;

result in the failure to comply with or satisfy any covenant, condition or agreement to be complied with or satisfied by any Party hereunder prior to the Effective Time; or

result in the failure to satisfy any of the conditions precedent in favour of the other Party contained in Section 6.1, Section 6.2 or Section 6.3, as the case may be.

Alexco Non-Solicitation

Except as otherwise expressly provided in this Section 7.2, Alexco shall not and shall cause its subsidiaries not to, directly or indirectly, through any of its Representatives:

solicit, initiate, knowingly encourage or otherwise knowingly facilitate (including by way of furnishing or providing copies of, access to, or disclosure of, any confidential information, properties, facilities, books or records of Alexco or any of its subsidiaries) any inquiry, proposal or offer that constitutes or could reasonably be expected to constitute or lead to an Acquisition Proposal;

enter into, engage in, continue or otherwise participate in any discussions or negotiations with any person (other than Hecla and its subsidiaries or affiliates) in respect of any inquiry, proposal or offer that constitutes or could reasonably be expected to lead to an Acquisition Proposal; provided that Alexco shall be permitted to communicate with any person who has made an Acquisition Proposal (i) for the purpose of clarifying the terms and conditions of such Acquisition Proposal and (ii) that the Alexco Board has determined that such Acquisition Proposal does not constitute, or is not reasonably expected to result in, a Superior Proposal;

make a Alexco Change in Recommendation; or

accept or enter into, or publicly propose to accept or enter into, any letter of intent, agreement in principle, agreement, arrangement or understanding relating to any Acquisition Proposal (other than a confidentiality agreement permitted pursuant to Section 7.2.5).

Alexco shall, and shall cause its subsidiaries and Representatives to immediately cease any existing solicitation, encouragement, discussions, negotiations or other activities commenced prior to the date of this Agreement with any person (other than Hecla and its subsidiaries or affiliates) conducted by Alexco or any of its subsidiaries or Representatives with respect to any inquiry, proposal or offer that constitutes, or could reasonably be expected to constitute or lead to, an Acquisition Proposal, and, in connection therewith, Alexco shall:

promptly discontinue access to and disclosure of its and its subsidiaries’ confidential information (and not allow access to or disclosure of any such confidential information, or any data room, virtual or otherwise); and

as soon as possible request (and in any case within two Business Days), and use commercially reasonable efforts to exercise all rights it has (or cause its subsidiaries to exercise any rights that they have) to require, the return or destruction of all confidential information (including derivative information) regarding Alexco and its subsidiaries previously provided to any person (other than Hecla) in connection with a possible Acquisition

Alexco represents and warrants that neither Alexco nor any of its subsidiaries has waived any standstill, confidentiality, non-disclosure, business purpose, use or similar agreement or restriction to which Alexco or any of its subsidiaries is a Party in connection with any potential Acquisition Proposal. Subject to Section 7.2.5, Alexco covenants and agrees that (i) Alexco shall take all necessary action to enforce each standstill, confidentiality, non-disclosure, business purpose, use or similar agreement or restriction to which Alexco or any of its subsidiaries is a party, and (ii) neither Alexco nor any of its subsidiaries nor any of their respective Representatives will, without the prior written consent of Hecla, release any person from, or waive, amend, suspend or otherwise modify such person’s obligations respecting Alexco, or any of its subsidiaries, under any standstill, confidentiality, non-disclosure, business purpose, use or similar agreement or restriction to which Alexco or any of its subsidiary is a party (it being acknowledged by Hecla that the automatic termination or automatic release, in each case pursuant to the terms thereof, of any standstill restrictions of any such agreements as a result of the entering into and announcement of this Agreement shall not be a violation of this Section 7.2.3).

If Alexco, or any of its subsidiaries or any of their respective Representatives receives or is notified of:

any inquiry, proposal or offer made after the date of this Agreement that constitutes or could reasonably be expected to constitute or lead to an Acquisition Proposal; or

any request for copies of, access to, or disclosure of, confidential information relating to Alexco or any of its subsidiaries in connection with any proposal that constitutes or could reasonably be expected to lead to an Acquisition Proposal, including information, access or disclosure relating to the properties, facilities, books or records of Alexco or any of its subsidiaries, in each case made after the date of this Agreement;

Notwithstanding any other provision of this Section 7.2, if at any time following the date of this Agreement and prior to obtaining the Alexco Securityholder Approval, Alexco receives an unsolicited bona fide written Acquisition Proposal, Alexco (A) may engage in or participate in discussions or negotiations with such person regarding such Acquisition Proposal, and (B) may provide copies of, access to or disclosure of information, properties, facilities, books or records of Alexco or its subsidiaries, if and only if:

Alexco Board determines, in good faith after consultation with its outside financial and legal advisors, that such Acquisition Proposal constitutes or could reasonably be expected to constitute or lead to a Superior Proposal;

such person is not restricted from making an Acquisition Proposal pursuant to an existing standstill, confidentiality, non-disclosure, business purpose, use or similar restriction with Alexco or any of its subsidiaries;

Alexco has been, and continues to be, in compliance with its obligations under this Section 7.2 in all material respects; and

prior to providing any such copies, access or disclosures, Alexco enters into a confidentiality and standstill agreement with such person, or confirms it has previously entered into such an agreement which remains in effect, in either case on terms that are not less favourable in the aggregate to Alexco than the Confidentiality Agreement and which does not contain a restriction on the ability of Alexco to disclose information to Hecla relating to the agreement or the status of material developments and negotiations with respect to such Acquisition Proposal with such person and any such copies, access or disclosure provided to such person shall have already been (or simultaneously be) provided to Hecla.

Nothing contained in this Agreement shall prohibit Alexco Board (acting in good faith and upon advice of its outside legal and financial advisors) from making any disclosure to Alexco Shareholders as required by applicable Laws, including complying with section 2.17 of Multilateral Instrument 62-104 – Takeover Bids and Issuer Bids and similar provisions under Securities Laws relating to the provision of a directors’ circular in respect of an Acquisition Proposal; provided, however, that neither Alexco nor the Alexco Board shall be permitted to recommend that the Alexco Shareholders tender any securities in connection with any take-over bid that is an Acquisition Proposal or effect an Alexco Change in Recommendation with respect thereto, except as permitted by this Section 7.2.6.

If Alexco receives an Acquisition Proposal that constitutes a Superior Proposal prior to obtaining the Alexco Securityholder Approval, the Alexco Board may, (1) make a Alexco Change in Recommendation in response to such Superior Proposal and/or (2) cause Alexco to terminate this Agreement pursuant to Section 8.2.1(d)(i) and concurrently enter into a definitive agreement with respect to Superior Proposal (other than a confidentiality agreement permitted by Section 7.2.5, a “Alexco Proposed Agreement”), if and only if:

the person making such Superior Proposal is not restricted from making an Acquisition Proposal pursuant to an existing standstill, confidentiality, non-disclosure, business purpose, use or similar restriction;

Alexco has been, and continues to be, in compliance with its obligations under this Section 7.2 in all material respects;

Alexco or its Representatives have delivered to Hecla the information required by Section 7.2.4 and a written notice of the determination of Alexco Board that such Acquisition Proposal constitutes a Superior Proposal and of the intention of Alexco Board to make Alexco Change in Recommendation and/or terminate this Agreement pursuant to Section 8.2.1(d)(i) to concurrently enter into Alexco Proposed Agreement with respect to such Superior Proposal, as applicable, together with a written notice from the Alexco Board regarding the value that the Alexco Board, in consultation with an Alexco Financial Advisor, has determined should be ascribed to any non-cash consideration offered under such Acquisition Proposal (collectively, the “Superior Proposal Notice”);

in the case of Alexco Board exercising its rights under clause (2) of this Section 7.2.7, Alexco or its Representatives have provided Hecla a copy of Alexco Proposed Agreement and all supporting materials, including any financing documents with customary redactions supplied to Alexco in connection therewith;

five Business Days (the “Hecla Response Period”) shall have elapsed from the date on which Hecla has received Superior Proposal Notice and all documentation referred to in Section 7.2.7(c) and Section 7.2.7(d);

during any Hecla Response Period, Hecla has had the opportunity (but not the obligation) in accordance with Section 7.2.8, to offer to amend this Agreement and the Plan of Arrangement in order for such Acquisition Proposal to cease to be a Superior Proposal;

after the Hecla Response Period, the Alexco Board (A) has determined in good faith, after consultation with its outside legal counsel and financial advisors, that such Acquisition Proposal continues to constitute a Superior Proposal (if applicable, compared to the terms of the Arrangement as proposed to be amended by Hecla under Section 7.2.8) and (B) has determined in good faith, after consultation with its outside legal counsel, that the failure by Alexco Board to make an Alexco Change in Recommendation and/or to cause Alexco to terminate this Agreement to enter into Alexco Proposed Agreement, as applicable, would be inconsistent with its fiduciary duties; and

in the case of Alexco Board exercising its rights under clause (2) of this Section 7.2.7, prior to or concurrently with terminating this Agreement pursuant to Section 7.2.7, Alexco enters into such Alexco Proposed Agreement and concurrently pays to Hecla the amounts required to be paid pursuant to Section 7.3.

During Hecla Response Period, or such longer period as Alexco may approve in writing for such purpose: (i) Alexco Board shall review any offer made by Hecla under Section 7.2.7(f) to amend the terms of this Agreement and the Plan of Arrangement in good faith in order to determine whether such proposal would, upon acceptance, result in Acquisition Proposal previously constituting a Superior Proposal ceasing to be a Superior Proposal; and (ii) if Alexco determines that an Acquisition Proposal previously constituting a Superior Proposal would cease to be a Superior Proposal, Alexco shall negotiate in good faith with Hecla to make such amendments to the terms of this Agreement and the Arrangement as would enable Hecla to proceed with the transactions contemplated by this Agreement on such amended terms. If Alexco Board determines that such Acquisition Proposal would cease to be a Superior Proposal, Alexco shall immediately so advise Hecla, and Alexco and Hecla shall amend this Agreement to reflect such offer made by Hecla, and shall take and cause to be taken all such actions as are necessary to give effect to the foregoing.

Each successive amendment or modification to any Acquisition Proposal or Alexco Proposed Agreement that results in an increase in, or modification of, the consideration (or value of such consideration) to be received by Alexco Shareholders or other material terms or conditions thereof shall constitute a new Acquisition Proposal for the purposes of this Section 7.2, and Hecla shall be afforded a new five Business Day Hecla Response Period from the date on which Hecla has received the notice and all documentation referred to in Section 7.2.7(c) and Section 7.2.7(d) with respect to the new Superior Proposal from Alexco.

Alexco Board shall promptly reaffirm Alexco Board Recommendation by press release after Alexco Board determines that any Acquisition Proposal that is publicly announced is not a Superior Proposal or Alexco Board determines that a proposed amendment to the terms of this Agreement as contemplated under Section 7.2.8 would result in an Acquisition Proposal that has been previously announced no longer being a Superior Proposal, and the Agreement has been so amended. Alexco shall provide Hecla and its outside legal counsel with a reasonable opportunity to review the form and content of any such press release and shall make all reasonable amendments to such press release as requested by Hecla and its counsel.

In circumstances where Alexco provides Hecla with notice of a Superior Proposal and all documentation contemplated by Section 7.2.7(c) and Section 7.2.7(d) on a date that is less than seven Business Days prior to the scheduled date of Alexco Meeting, Alexco may either proceed with or postpone Alexco Meeting to a date that is not more than 10 Business Days after the scheduled date of such Alexco Meeting, and shall postpone Alexco Meeting to a date that is not more than 10 Business Days after the scheduled date of such Alexco Meeting if so directed by Hecla.

Without limiting the generality of the foregoing, Alexco shall advise its subsidiaries and Representatives of the prohibitions set out in this Section 7.2 and any violation of the restrictions set forth in this Section 7.2 by Alexco, its subsidiaries or Representatives shall be deemed to be a breach of this Section by Alexco.

Expenses and Termination Fees

Except as otherwise provided herein, all fees, costs and expenses incurred in connection with this Agreement and the Plan of Arrangement shall be paid by the Party incurring such fees, costs or expenses.

If a Termination Fee Event (as defined below) occurs, Alexco shall pay, or cause to be paid, to Hecla or as Hecla shall direct (by wire transfer of immediately available funds) the Termination Fee in accordance with Section 7.3.2.

For the purposes of this Agreement, “Termination Fee” means US$10,000,000.

For the purposes of this Agreement, “Termination Fee Event” means the termination of this Agreement:

by Hecla pursuant to Section 8.2.1(c)(i) [Alexco Change in Recommendation] or Section 8.2.1(c)(iv) [Breach of Non-Solicitation];

by Alexco pursuant to Section 8.2.1(d)(i) [Superior Proposal]; or

by either Party pursuant to Section 8.2.1(b)(i) [Effective Time has not occurred before Outside Date] or Section 8.2.1(b)(iii) [Alexco Resolution not approved at Alexco Meeting] or by Hecla pursuant to Section 8.2.1(c)(iii) (due to a negligence, wilful breach or fraud) [Breach of Alexco Representations, Warranties or Covenants] or Section 8.2.1(c)(iv) [Material Breach of Covenant], but only if, in the case of this paragraph (c), prior to the termination of this Agreement, an Acquisition Proposal, or the intention to make an Acquisition Proposal, with respect to Alexco shall have been made or publicly announced by any person (other than Hecla or any of its affiliates) and has not expired or been withdrawn prior to the Alexco Meeting; and:

within 12 months following the date of such termination Alexco enters into a definitive agreement in respect of an Acquisition Proposal (whether or not such Acquisition Proposal is the same Acquisition Proposal referred to above) and such Acquisition Proposal is later consummated (whether or not within such 12 month period); or

within 12 months following the date of such termination an Acquisition Proposal is consummated (whether or not such Acquisition Proposal is the same Acquisition Proposal referred to above);

If a Termination Fee Event occurs pursuant to Section 7.3.4(a), the Termination Fee shall be payable by Alexco to Hecla within two Business Days following such Termination Fee Event. If a Termination Fee Event occurs pursuant to Section 7.3.4(b), the Termination Fee shall be paid by Alexco to Hecla prior to or concurrently with such termination. If a Termination Fee Event occurs in the circumstances set out in 7.3.4(c), the Termination Fee shall be payable by Alexco to Hecla within two Business Days following the closing of the applicable transaction referred to therein. Any Termination Fee payable pursuant to this Section 7.3.5 shall be paid by wire transfer of immediately available funds.

Each of the Parties acknowledges that the agreements contained in this Section 7.3 are an integral part of the transactions contemplated in this Agreement and that, without those agreements, the Parties would not enter into this Agreement. Each Party acknowledges that all of the payment amounts set out in this Section 7.3 are payments of liquidated damages which are a genuine pre-estimate of the damages which the Party entitled to such damages will suffer or incur as a result of the event giving rise to such damages and the resultant termination of this Agreement and are not penalties. Each of the Parties irrevocably waives any right it may have to raise as a defense that any such liquidated damages are excessive or punitive. For greater certainty, each Party agrees that, upon any termination of this Agreement under circumstances where a Party is entitled to a Termination Fee and such Termination Fee is paid in full, the Party receiving the Termination Fee shall be precluded from any other remedy against the other Party at law or in equity or otherwise (including an order for specific performance), and shall not seek to obtain any recovery, judgment, or damages of any kind, including consequential, indirect, or punitive damages, against the other Party or any of its subsidiaries or any of their respective directors, officers, employees, partners, managers, members, shareholders or affiliates in connection with this Agreement or the transactions contemplated hereby.

Nothing in this Section 7.3 shall relieve or have the effect of relieving any Party in any way from liability for damages incurred or suffered by a Party as a result of an intentional or wilful breach of this Agreement.

Nothing in this Section 7.3 shall preclude a Party from seeking injunctive relief to restrain any breach or threatened breach of the covenants or agreements set forth in this Agreement or otherwise to obtain specific performance of any such covenants or agreements, without the necessity of posting bond or security in connection therewith.

For greater certainty, except as provided in Section 7.3.8, a Party shall not be obligated to make more than one payment pursuant to this Section 7.3.

Access to Information; Confidentiality

From the date hereof until the earlier of the Effective Time and the termination of this Agreement pursuant to its terms, subject to compliance with applicable Laws and COVID-19 Measures and the terms of any existing Contracts, Alexco shall, and shall cause its Representatives to, afford to Hecla and its Representatives, upon reasonable notice, such access as Hecla may reasonably require at all reasonable

Hecla and Alexco acknowledge and agree that information furnished pursuant to this Section 7.4 shall be subject to the terms and conditions of the Confidentiality Agreement. Any such investigation by Hecla and its Representatives under this Section 7.4 or otherwise shall not mitigate, diminish or affect the representations and warranties of Alexco contained in this Agreement or any document or certificate delivered pursuant hereto.

Insurance and Indemnification

Prior to the Effective Time, Alexco may purchase customary “tail” policies of directors’ and officers’ liability, products and completed operations liability and employment practices liability insurance from a reputable and financially sound insurance carrier and containing terms and conditions no less favourable in the aggregate to the protection provided by the policies maintained by Alexco and its subsidiaries which are in effect immediately prior to the Effective Date and providing protection in respect of claims arising from facts or events which occurred on or prior to the Effective Time and Alexco will, and will cause its subsidiaries to, maintain such tail policies in effect without any reduction in scope or coverage for six years from the Effective Time; provided, that Alexco and its subsidiaries shall not be required to pay any amounts in respect of such coverage prior to the Effective Time and provided further that the cost of such policies shall not exceed 300% of Alexco’s current annual aggregate premium for policies currently maintained by Alexco or its subsidiaries.

Alexco will, and will cause its subsidiaries to, honour all rights to indemnification or exculpation now existing in favour of present and former employees, officers and directors of Alexco and its subsidiaries under Law and under the articles or other constating documents of Alexco and/or its subsidiaries or, to the extent that they are disclosed in Alexco Disclosure Letter, under any agreement or contract of any indemnified person with Alexco or with any of its subsidiaries, and acknowledges that such rights shall survive the completion of the Plan of Arrangement, and, to the extent within the control of Alexco, Alexco shall ensure that the same shall not be amended, repealed or otherwise modified in any manner that would adversely affect any right thereunder of any such indemnified person and shall continue in full force and effect in accordance with their terms for a period of not less than six years from the Effective Date.

From and following the Effective Time, Hecla will cause Alexco to comply with its obligations under Section 7.5.1 and Section 7.5.2.

If Alexco or Hecla or any of their successors or assigns shall (i) amalgamate, consolidate with or merge or wind-up into any other person and shall not be the continuing or surviving corporation or entity; or (ii) transfer all or substantially all of its properties and assets to any person, then, and in each such case, proper provisions shall be made so that the successors and assigns and transferees of Alexco or Hecla, as the case may be, shall assume all of the obligations of Alexco or Hecla, as applicable, set forth in this Section 7.5.

The provisions of this Section 7.5 are intended for the benefit of, and shall be enforceable by, each insured or indemnified person, his or her heirs and his or her legal representatives and, for such purpose, Alexco hereby confirms that it is acting as trustee on their behalf, and agrees to enforce the provisions of this Section 7.5 on their behalf. Furthermore, this Section 7.5 shall survive the termination of this Agreement as a result of the occurrence of the Effective Date for a period of six years.

Term

Termination

This Agreement may be terminated prior to the Effective Time:

by mutual written agreement of Alexco and Hecla; or

by either Alexco or Hecla, if:

the Effective Time shall not have occurred on or before the Outside Date, except that the right to terminate this Agreement under this Section 8.2.1(b)(i) shall not be available to any Party whose failure to fulfill any of its covenants or agreements or breach of any of its representations and warranties under this Agreement has been the cause of, or resulted in, the failure of the Effective Time to occur by such Outside Date;

after the date of this Agreement, there shall be enacted or made any applicable Law or Order that makes consummation of the Arrangement illegal or otherwise prohibits or enjoins Alexco or Hecla from consummating the Arrangement and such applicable Law, Order or

the Alexco Securityholder Approval shall have not been obtained at the Alexco Meeting (including any adjournment or postponement thereof) in accordance with the Interim Order, provided that a Party may not terminate this Agreement pursuant to this Section 8.2.1(b)(iii) if the failure to obtain the Alexco Securityholder Approval has been caused by, or is a result of, a breach by such Party of any of its representations or warranties or the failure of such Party to perform any of its covenants or agreements under this Agreement; or

by Hecla, if:

the Alexco Board (1) (A) fails to make the Alexco Board Recommendation, (B) withdraws, withholds, amends, modifies or qualifies, or proposes publicly to withdraw, withhold, amend, modify or qualify the Alexco Board Recommendation, (C) approves, accepts, endorses, or recommends or proposes publicly to approve, accept, endorse or recommend, any Acquisition Proposal or takes no position or a neutral position with respect to an Acquisition Proposal for more than five Business Days after the public announcement of such Acquisition Proposal (or beyond the third Business Day prior to the date of the Alexco Meeting), (D) accepts or enters into (other than a confidentiality agreement permitted by and in accordance with Section 7.2.5) or publicly proposes to accept or enter into any agreement, understanding or arrangement in respect of an Acquisition Proposal, or (E) fails to reaffirm the Alexco Board Recommendation within five Business Days (and in any case prior to the Alexco Meeting) after having been requested in writing by Hecla to do so (it being understood that the taking of a neutral position or no position with respect to an Acquisition Proposal beyond a period of three Business Days (or beyond the time of the Alexco Meeting, if sooner) shall be considered a failure of the Alexco Board to reaffirm its recommendation within the requisite time period), or (2) the Alexco Board resolves or proposes to take any of the foregoing actions (each of the foregoing clauses (1) and (2) being referred to as a “Alexco Change in Recommendation”);

any of the conditions set forth in Section 6.1 or Section 6.2 is not satisfied, and such condition is incapable of being satisfied by the Outside Date;

a breach of any representation or warranty or failure to perform any covenant or agreement on the part of Alexco set forth in this Agreement shall have occurred that would cause the conditions set forth in Section 6.1 or Section 6.2 not to be satisfied, and such conditions are incapable of being satisfied by the Outside Date; provided that Hecla is not then in breach of this Agreement so as to cause any of the conditions set forth in Section 6.1 or Section 6.3 not to be satisfied;

without limiting the provisions of subparagraph (iii) above, Alexco wilfully or materially breaches any of its obligations or covenants set forth in Section 7.2; or

there has occurred a Alexco Material Adverse Effect.

by Alexco, if:

prior to obtaining the Alexco Securityholder Approval, the Alexco Board authorizes Alexco, subject to complying with the terms of this Agreement, to enter into a binding written agreement relating to a Superior Proposal; provided that concurrent with such termination, Alexco pays, or causes to be paid, the Termination Fee payable pursuant to Section 7.3;

any of the conditions set forth in Section 6.1 or Section 6.3 is not satisfied, and such condition is incapable of being satisfied by the Outside Date;

a breach of any representation or warranty or failure to perform any covenant or agreement on the part of Hecla set forth in this Agreement shall have occurred that would cause the conditions set forth in Section 6.1 or Section 6.3 not to be satisfied, and such conditions are incapable of being satisfied by the Outside Date; provided that Alexco is not then in breach of this Agreement so as to cause any of the conditions set forth in Section 6.1 or Section 6.2 not to be satisfied; or

there has occurred a Hecla Material Adverse Effect.

The Party desiring to terminate this Agreement pursuant to this Section 8.2 (other than pursuant to Section 8.2.1(a)) shall give written notice of such termination to the other Parties, specifying in reasonable detail the basis for such Party’s exercise of its termination right.

If this Agreement is terminated pursuant to this Section 8.2, this Agreement shall become void and of no effect without liability of any Party (or any shareholder, director, officer, employee, agent, consultant or representative of such Party) to any other Party hereto, except as otherwise expressly contemplated hereby, and provided that the provisions of this Section 8.2.3 and Sections 7.3, 9.2, 9.4, 9.6, 9.7, as well as the confidentiality provisions of Section 7.4 and the provisions of the Confidentiality Agreement (other than any standstill provisions contained therein) and the indemnification obligations of Hecla in Section 5.6(a), shall survive any termination hereof pursuant to Section 8.2.1; provided further that neither the termination of this Agreement nor anything contained in this Section 8.2 shall relieve a Party from any liability arising prior to such termination.

Amendment

change the time for performance of any of the obligations or acts of the Parties;

waive any inaccuracies or modify any representation or warranty contained herein or in any document delivered pursuant hereto;

waive compliance with or modify any of the covenants herein contained and waive or modify performance of any of the obligations of the Parties; and/or

waive compliance with or modify any mutual conditions precedent herein contained.

Waiver

Notices

if to Hecla:

if to Alexco:

Governing Law

Injunctive Relief

Time of Essence

Entire Agreement, Binding Effect and Assignment

Severability

Further Assurances

No Third Party Beneficiaries

Mutual Interest

Counterparts, Execution

Definitions

“Alexco” means Alexco Resource Corp.;

“Alexco Circular” means the notice of the Alexco Meeting and accompanying management information circular, including all schedules, appendices and exhibits thereto, to be sent to Alexco Securityholders in connection with the Alexco Meeting, as amended, supplemented or otherwise modified from time to time;

“Alexco Disclosure Letter” means the disclosure letter executed by Alexco and delivered to Hecla concurrently with the execution of the Arrangement Agreement;

“Alexco DSU” means a deferred share unit issued pursuant to the Alexco DSU Plan;

“Alexco DSU Plan” means the deferred share unit plan of Alexco, as approved by Alexco Shareholders on June 6, 2019;

“Alexco DSU Holder” means a holder of one or more Alexco DSUs;

“Alexco Equity Incentive Plans” means the Alexco Stock Option Plan, the Alexco RSU Plan and the Alexco DSU Plan;

“Alexco In-The-Money Option” means an Alexco Option in respect of which the Alexco Option In-The-Money Amount, determined on the last Business Day immediately preceding the Effective Date, is a positive amount;

“Alexco Meeting” means the special meeting of Alexco Shareholders, including any adjournment or postponement thereof, to be called and held in accordance with the Interim Order to consider the Alexco Resolution;

“Alexco Option” means a right and option to purchase one or more Alexco Shares granted pursuant to the Alexco Stock Option Plan or otherwise enforceable against Alexco.;

“Alexco Optionholders” means, collectively, the holders of one or more Alexco Options;

“Alexco Option In-The-Money Amount” in respect of a Alexco Option means the amount, if any, by which the total fair market value (determined immediately before the Effective Time) of the aggregate Alexco Shares that a holder is entitled to acquire on exercise of such Alexco Option immediately before the Effective Time exceeds the aggregate exercise price to acquire such Alexco Shares;

“Alexco Out-of-the-Money Option” means an Alexco Option other than an Alexco In-The-Money Option;

“Alexco Resolution” means the special resolution of Alexco Shareholders approving the Arrangement, which is to be considered at the Alexco Meeting, substantially in the form of Schedule B to the Arrangement Agreement;

“Alexco RSU” means a restricted share unit issued pursuant to the Alexco RSU Plan;

“Alexco RSU Plan” means the restricted share unit plan of Alexco, as approved by Alexco Shareholders on June 10, 2021;

“Alexco RSU Holder” means a holder of one or more Alexco RSUs;

“Alexco Security” means an Alexco Share, Alexco Option, Alexco DSU or Alexco RSU;

“Alexco Securityholder” means a holder one or more of Alexco Securities;

“Alexco Shareholder” means a holder of Alexco Shares;

“Alexco Shares” means the common shares in the authorized capital of Alexco;

“Alexco Stock Option Plan” means the stock option plan of Alexco, as approved by Alexco Shareholders on June 6, 2019 and as further amended on June 9, 2022;

“Arrangement” means the arrangement pursuant to Division 5 of Part 9 of the BCBCA with respect to, among others, Alexco, Alexco Securityholders and Hecla on the terms and subject to the conditions set out in this Plan of Arrangement, subject to any amendments or variations thereto made in accordance with Section 8.3 of the Arrangement Agreement or this Plan of Arrangement or made at the direction of the Court in the Interim Order or Final Order with the consent of Hecla and Alexco, each acting reasonably;

“Arrangement Agreement” means the arrangement agreement dated July [●], 2022, between Hecla and Alexco, including (unless the context otherwise requires) the Schedules thereto, together with the Alexco Disclosure Letter, as the same may be amended, supplemented or otherwise modified from time to time in accordance with the terms thereof;

“BCBCA” means the Business Corporations Act (British Columbia);

“Business Day” means any day, other than a Saturday, a Sunday or any other day on which the banks located in Vancouver, British Columbia or ▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇, are closed or authorized to be closed;

“Consideration” means for each Alexco Share, [●] Hecla Shares, being the consideration payable under this Plan of Arrangement to a person who is a Alexco Shareholder other than Hecla;

“Court” means the Supreme Court of British Columbia;

“Depositary” means Computershare Investor Services Inc., in its capacity as depositary for the Arrangement;

“Dissent Rights” has the meaning ascribed thereto in Section 5.1;

“Dissent Share” means a Alexco Share in respect of which a Dissenting Shareholder has duly and validly exercised Dissent Rights in strict compliance with Article 5 of this Plan of Arrangement;

“Dissenting Shareholder” means a registered Alexco Shareholder as of the record date of the Alexco Meeting that duly and validly exercises Dissent Rights in respect of all Alexco Shares held and has not withdrawn or been deemed to have withdrawn such exercise of Dissent Rights;

“Effective Date” means the date upon which the Arrangement becomes effective as set out in Section 2.8(a) of the Arrangement Agreement;

“Effective Time” means 12:01 a.m. (Vancouver time) on the Effective Date, or such other time as Hecla and Alexco may agree upon in writing;

“Election Deadline” means 4:30 p.m. (Vancouver time) on the third (3rd) Business Day immediately prior to the date of the Alexco Meeting;

“Final Order” means the final order of the Court in a form acceptable to both Hecla and Alexco, each acting reasonably, pursuant to Section 291 of the BCBCA approving the Arrangement, as such order may be amended, modified, supplemented or varied by the Court (with the consent of both Hecla and Alexco, each acting reasonably) at any time prior to the Effective Date or, if appealed, then, unless such appeal is withdrawn or denied, as affirmed or as amended on appeal (provided that any such amendment is acceptable to both Hecla and Alexco, each acting reasonably);

“Hecla” means Hecla Mining Company;

“Hecla Shares” means common shares in the capital of Hecla;

“Interim Order” means the interim order of the Court contemplated by Section 2.2 of the Arrangement Agreement and made pursuant to the BCBCA in a form acceptable to both Hecla and Alexco, each acting reasonably, providing for, among other things, the calling and holding of the Alexco Meeting, as the same may be amended, modified, supplemented or varied by the Court (with the consent of both Hecla and Alexco, each acting reasonably);

“Letter of Transmittal” means the Letter of Transmittal enclosed with the Alexco Circular sent in connection with the Alexco Meeting pursuant to which, among other things, registered Alexco Shareholders are required to deliver certificates representing Alexco Shares;

“Liens” means any hypothec, mortgage, pledge, assignment, lien, charge, security interest, encumbrance adverse right or claim, other third person interest or encumbrance of any kind, whether contingent or absolute, and any agreement, option, right or privilege (whether by law, contract or otherwise) capable of becoming any of the foregoing;

“Option Consideration” means, in respect of an Alexco In-The-Money Option, such number of Alexco Shares obtained by dividing: (i) the Alexco Option In-The-Money Amount in respect of such Alexco In-The-Money Option, by (ii) total fair market value (determined immediately before the Effective Time) of the aggregate Alexco Shares that a holder is entitled to acquire on exercise of such Alexco Option, with the result rounded down to the nearest whole number of Alexco Shares;

“Parties” means Hecla and Alexco, and “Party” means any one of them;

“Plan of Arrangement” means this Plan of Arrangement as amended or supplemented from time to time in accordance with the terms hereof;

“U.S. Exchange Act” means the United States Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder;

“U.S. Securities Act” means the United States Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder; and

Interpretation Not Affected by Headings

Number and Gender

Date for any Action

Statutory References

Currency

Governing Law

Time

Arrangement Agreement

Effect of the Arrangement

Arrangement

each Alexco In-the-Money Option outstanding immediately prior to the Effective Time (whether vested or unvested) shall immediately and unconditionally vest, notwithstanding the terms of the Alexco Option Plan and shall, without any further action by or on behalf of any Alexco Optionholder, be deemed to be assigned and transferred by such Alexco Optionholder (free and clear of all Liens) to Alexco for cancellation in exchange for the Option Consideration. The Alexco Shares comprising the Option Consideration will be issued to such Alexco Optionholder as fully paid and non-assessable shares in the capital of Alexco;

each Alexco Out-of-the-Money Option outstanding immediately prior to the Effective Time shall, without any further action by or on behalf of any Alexco Optionholder, be cancelled without any payment in respect thereof;

(i) each Alexco Optionholder shall cease to be a holder of such Alexco Options, (ii) each such holder’s name shall be removed from each applicable register maintained by Alexco, and (iii) all agreements relating to the Alexco Options shall be terminated and shall be of no further force and effect;

each Alexco DSU outstanding immediately prior to the Effective Time shall immediately and unconditionally vest, notwithstanding the terms of the Alexco DSU Plan and shall, without any further action by or on behalf of the Alexco DSU Holder thereof, be deemed to be assigned and transferred by such Alexco DSU Holder to Alexco (free and clear of all Liens) in exchange for, as determined by the board of directors of Alexco in accordance with the Alexco DSU Plan, either a cash payment or the number of Alexco Shares equal to the number of Alexco Shares a holder is entitled to under each Alexco DSU. Any such Alexco Shares will be issued to such Alexco DSU Holder as fully paid and non-assessable shares in the capital of Alexco; provided that no share certificates shall be issued with respect to such shares;

each Alexco DSU Holder shall cease to be a holder of such Alexco DSUs, (ii) each such holder’s name shall be removed from each applicable register maintained by Alexco, and (iii) all agreements relating to the Alexco DSUs shall be terminated and shall be of no further force and effect;

each Alexco RSU outstanding immediately prior to the Effective Time shall immediately and unconditionally vest, notwithstanding the terms of the Alexco RSU Plan and shall, without any further action by or on behalf of the Alexco RSU Holder thereof, be deemed to be assigned and transferred by such Alexco RSU Holder to Alexco (free and clear of all Liens) in exchange for the number of Alexco

(i) each Alexco RSU Holder shall cease to be a holder of such Alexco RSUs, (ii) each such holder’s name shall be removed from each applicable register maintained by Alexco, and (iii) all agreements relating to the Alexco RSUs shall be terminated and shall be of no further force and effect;

each Dissenting Shareholder shall transfer to Hecla all of the Dissent Shares held (free and clear of all Liens), without any further act or formality on its part, and in consideration therefor, Hecla shall issue to the Dissenting Shareholder a debt- claim to be paid the aggregate fair market value of those Dissent Shares as determined pursuant to Section 5.1, and in respect of the Dissent Shares so transferred

the Dissenting Shareholder shall cease to be the holder thereof,

the name of the Dissenting Shareholder shall be removed from the register maintained by or on behalf of Alexco in respect of the Alexco Shares,

the Dissenting Shareholder shall be deemed to have executed and delivered all consents, releases, assignments and waivers, statutory or otherwise, required to effect the transfer thereof, and

the name of Hecla shall be added to the register maintained by or on behalf of Alexco in respect of the Alexco Shares as the holder thereof; and

each Alexco Shareholder shall transfer to Hecla (free and clear of all Liens) each whole Alexco Share held (other than any Alexco Shares held by Hecla immediately before the Effective Time or acquired by Hecla from a Dissenting Shareholder under Section 3.1(h)), including the Alexco Shares issued pursuant to Section 3.1(d) or Section 3.1(f) in exchange for the Consideration for each Alexco Share held, and

the Alexco Shareholder shall cease to be the holder thereof,

the name of the Alexco Shareholder shall be removed from the register maintained by or on behalf of Alexco in respect of the Alexco Shares,

the Alexco Shareholder shall be deemed to have executed and delivered all consents, releases, assignments and waivers, statutory or otherwise, required to effect the transfer thereof, and

the name of Hecla shall be added to the register maintained by or on behalf of Alexco in respect of the Alexco Shares as the holder thereof;

Deemed Fully Paid and Non-Assessable Shares

No Fractional Consideration

Calculations

Adjustments to Consideration

Payment of Consideration

Following receipt of the Final Order and in any event no later than the Business Day prior to the Effective Date, Hecla shall deliver or cause to be delivered to the Depositary Hecla Shares to satisfy the aggregate number of Hecla Shares payable to Alexco Securityholders, which Hecla Shares shall be held by the Depositary in escrow as agent and nominee for such former Alexco Securityholders.

Upon surrender to the Depositary for cancellation of a certificate of a Alexco Security which immediately prior to the Effective Time represented an outstanding Alexco Security that was transferred pursuant to Section 3.1, together with a duly completed and executed Letter of Transmittal and any such additional documents and instruments as the Depositary may reasonably require, the registered holder of the Alexco Security represented by such surrendered certificate shall be entitled to receive in exchange therefor, and the Depositary shall deliver to such Alexco Securityholder, as soon as practicable, the Consideration that such Alexco

After the Effective Time and until surrendered as contemplated by this Section 4.1, each certificate that immediately prior to the Effective Time represented Alexco Shares shall be deemed after the Effective Time to represent only the right to receive, upon such surrender, the Consideration to which the holder thereof is entitled in lieu of such certificate as contemplated by Section 3.1 and this Section 4.1, less any amounts withheld pursuant to Section 4.4. Any such certificate formerly representing Alexco Shares not duly surrendered on or before the sixth anniversary of the Effective Date shall:

cease to represent a claim by, or interest of, any former holder of Alexco Shares of any kind or nature against or in Alexco or Hecla (or any successor to any of the foregoing); and

be deemed to have been surrendered to Hecla and shall be cancelled.

No Alexco Securityholder shall be entitled to receive any consideration with respect to such Alexco Securities other than the Consideration to which such holder is entitled in accordance with Section 3.1 and this Section 4.1 and, for greater certainty, no such holder will be entitled to receive any interest, dividends, premium or other payment in connection therewith.

Neither Alexco nor Hecla, or any of their respective successors, will be liable to any person in respect of any Consideration (including any consideration previously held by the Depositary in trust for any such former holder) which is forfeited to Alexco or Hecla or delivered to any public official pursuant to any applicable abandoned property, escheat or similar law.

Lost Certificates

Distributions with Respect to Unsurrendered Certificates

Withholding Rights

Dissent Rights

are ultimately entitled to be paid fair value for their Alexco Shares, which fair value shall be the fair value of such shares immediately before the approval of the Alexco Resolution, shall be paid only an amount equal to such fair value by Hecla, which fair value shall be determined in accordance with the procedures applicable to the payout value set out in sections 244 and 245 of the BCBCA except that Hecla may

are ultimately not entitled, for any reason, to be paid fair value for their Alexco Shares in respect of which they purported to exercise Dissent Rights shall be deemed to have participated in the Arrangement, as of the Effective Time, on the same basis as a non-dissenting holder of Alexco Shares and shall be entitled to receive only the consideration contemplated in Section 3.1(f) hereof that such holder would have received pursuant to the Arrangement if such holder had not exercised Dissent Rights, and had made the Cash Election for all Alexco Shares held in accordance with Section 3.2, but in no case shall Hecla or Alexco or any other person be required to recognize any holder of Alexco Shares who exercises Dissent Rights as a holder of Alexco Shares after the time that is immediately prior to the Effective Time, and the names of all such holders of Alexco Shares who exercise Dissent Rights (and have not withdrawn such exercise of Dissent Rights prior to the Effective Time) shall be deleted from the register maintained by or on behalf of Alexco in respect of the Alexco Shares as holders of Alexco Shares at the Effective Time and Hecla shall be recorded as the registered holder of such Alexco Shares and shall be deemed to be the legal owner of such Alexco Shares.

Amendments to the Plan of Arrangement

Alexco and Hecla may amend, modify and/or supplement this Plan of Arrangement at any time and from time to time prior to the Effective Time, provided that each such amendment, modification and/or supplement must (i) be set out in writing, (ii) be approved by the Alexco and Hecla, each acting reasonably, (iii) filed with the Court and, if made following the Alexco Meeting, approved by the Court, and (iv) communicated to the Alexco Securityholders if and as required by the Court.

Any amendment, modification or supplement to this Plan of Arrangement may be proposed by the Alexco or Hecla at any time prior to or at the Alexco Meeting (provided that the Alexco or the Hecla, as applicable, shall have consented thereto)

Any amendment, modification or supplement to this Plan of Arrangement that is approved or directed by the Court following the Alexco Meeting shall be effective only if (i) it is consented to in writing by each of the Alexco and the Hecla (in each case, acting reasonably), and (ii) if required by the Court, it is consented to by some or all of the Shareholders voting in the manner directed by the Court. Any amendment, modification or supplement to this Plan of Arrangement may be made following the granting of the Final Order without filing such amendment, modification or supplement with the Court or seeking Court approval, provided that it (i) concerns a matter which, in the reasonable opinion of the Parties, is of an administrative nature required to better give effect to the implementation of this Plan of Arrangement and is not materially adverse to the interest of any holders of Alexco Securities or (ii) is an amendment contemplated in Section 6.1(d).

Any amendment, modification or supplement to this Plan of Arrangement may be made following the Effective Date unilaterally by Hecla, provided that it concerns a matter which, in the reasonable opinion of Hecla, is of an administrative nature required to better give effect to the implementation of this Plan of Arrangement and is not materially adverse to the economic interest of any former holder of Alexco Securities.

Withdrawal of Plan of Arrangement

Effect of Termination

Further Assurances

Paramountcy

this Plan of Arrangement shall take precedence and priority over any and all rights related to Alexco Securities issued prior to the Effective Time;

the rights and obligations of the holders of Alexco Securities and any trustee and transfer agent therefor, shall be solely as provided for in this Plan of Arrangement; and

all actions, causes of actions, claims or proceedings (actual or contingent, and whether or not previously asserted) based on or in any way relating to Alexco Securities shall be deemed to have been settled, compromised, released and determined without liability except as set forth herein.

U.S. Securities Law Exemption.

The arrangement (the “Arrangement”) under Section 291 of the Business Corporations Act (British Columbia) involving Alexco Resource Corp. (the “Company”), pursuant to the arrangement agreement between the Company and Hecla Mining Company (“Hecla”) dated July 4, 2022, as it may be modified, supplemented or amended from time to time in accordance with its terms (the “Arrangement Agreement”), as more particularly described and set forth in the management information circular of the Company dated [●] (the “Circular”), and all transactions contemplated thereby, are hereby authorized, approved and adopted.

The plan of arrangement of the Company, as it has been or may be modified, supplemented or amended in accordance with the Arrangement Agreement and its terms (the “Plan of Arrangement”), the full text of which is set out as Appendix [●] to the Circular, is hereby authorized, approved and adopted.

The: (i) Arrangement Agreement and all the transactions contemplated therein; (ii) actions of the directors of the Company in approving the Arrangement and the Arrangement Agreement; and (iii) actions of the directors and officers of the Company in executing and delivering the Arrangement Agreement and any modifications, supplements or amendments thereto, and causing the performance by the Company of its obligations thereunder, are hereby ratified and approved.

The Company is hereby authorized to apply for a final order from the Supreme Court of British Columbia (the “Court”) to approve the Arrangement on the terms set forth in the Arrangement Agreement and the Plan of Arrangement (as they may be, or may have been, modified, supplemented or amended).

Notwithstanding that this resolution has been passed (and the Arrangement adopted) by the holders of securityholders of the Company (the “Company Securityholders”) entitled to vote thereon or that the Arrangement has been approved by the Court, the directors of the Company are hereby authorized and empowered, without further notice to or approval of the Company Securityholders: (i) to amend, modify or supplement the Arrangement Agreement or the Plan of Arrangement to the extent permitted by their terms; and (ii) subject to the terms of the Arrangement Agreement, not to proceed with the Arrangement and any related transactions.

Any officer or director of the Company is hereby authorized and directed, for and on behalf of the Company, to execute or cause to be executed and to deliver or cause to be delivered, whether under the corporate seal of the Company or otherwise, all such other documents and instruments and to perform or cause to be performed all such other acts and things as, in such person’s opinion, may be necessary or desirable to give full force and effect to the foregoing resolutions and the matters authorized thereby, such determination to be conclusively evidenced by the execution and delivery of any such other document or instrument or the doing of any such other act or thing.