METHANEX CORPORATION As Issuer AND THE BANK OF NEW YORK MELLON As Trustee FIFTH SUPPLEMENTAL INDENTURE Dated as of February 28, 2012 To

METHANEX CORPORATION As Issuer AND THE BANK OF NEW YORK MELLON As Trustee FIFTH SUPPLEMENTAL INDENTURE Dated as of February 28, 2012 To

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Exhibit 7.4

METHANEX CORPORATION

As Issuer

AND

THE BANK OF NEW YORK MELLON

As Trustee

FIFTH SUPPLEMENTAL INDENTURE

Dated as of February 28, 2012

Indenture dated as of July 20, 1995 between Methanex Corporation, as Issuer, and

The Bank of New York Mellon (formerly United States Trust Company of New York), as

Trustee, providing for the issue of Debt Securities

FIFTH SUPPLEMENTAL INDENTURE

THIS FIFTH SUPPLEMENTAL INDENTURE (this “Fifth Supplemental Indenture”) is made as of the 28^th day of February, 2012, between Methanex Corporation (the “Company”) and The Bank of New York Mellon (formerly United States Trust Company of New York), as trustee (the “Trustee”).

WHEREAS, by a trust indenture made as of July 20, 1995, between the Company and the Trustee provision was made for the issue of securities of the Company in one or more series (the “Original Indenture”);

WHEREAS, the Original Indenture was supplemented by the First Supplemental Indenture, dated June 18, 2002, the Second Supplemental Indenture, dated June 19, 2002 (the “Second Supplemental Indenture”), the Third Supplemental Indenture, dated December 9, 2003, and the Fourth Supplemental Indenture, dated August 3, 2005 (the “Fourth Supplemental Indenture” and the Original Indenture as so supplemented, the “Indenture”), in all cases between the Company and the Trustee;

WHEREAS under and in accordance with the terms of the Indenture, there have heretofore been issued four series of securities;

WHEREAS the Indenture provides that the aggregate principal amount of securities which may be issued thereunder is unlimited but securities may be issued only upon and subject to the conditions and limitations set forth therein;

WHEREAS the Company desires and may from time to time desire to issue Debt Securities having the attributes and characteristics hereinafter set forth;

WHEREAS the Company is not in default under the Indenture;

WHEREAS all necessary acts and proceedings have been done and taken and all necessary resolutions passed to authorize the execution and delivery of this Fifth Supplemental Indenture and to make the same legal and valid and binding upon the Company;

WHEREAS the foregoing recitals are made as representations and statements of fact by the Company and not the Trustee; and

WHEREAS the Company is permitted to enter into this Fifth Supplemental Indenture pursuant to Section 9.01(j) of the Indenture with the intent that the provisions of this Fifth Supplemental Indenture will apply only to the Debt Securities (as defined herein);

NOW, THEREFORE, in consideration of the foregoing and notwithstanding any provision of the Indenture which, absent this Fifth Supplemental Indenture, might operate to limit such action, the Company and the Trustee agree as follows for the equal and ratable benefit of the Holders of the Debt Securities:

ARTICLE 1- DEFINITIONS

1.01	General.

For all purposes of this Fifth Supplemental Indenture, except as otherwise expressly provided or unless the subject matter or context otherwise requires:

“Debt Securities” has the meaning set forth in the Indenture, except that it shall not include the 8.75% Senior Notes due August 15, 2012 or the 6.0% Senior Notes due August 15, 2015;

“Trust Indenture” means the Indenture as supplemented by this Fifth Supplemental Indenture and any other indenture, deed or instrument supplemental or ancillary thereto; and

all other terms and expressions used herein shall have the same meanings as corresponding expressions defined in the Trust Indenture.

1.02	To be Read with Indenture.

This Fifth Supplemental Indenture is a supplemental indenture within the meaning of the Indenture, and the Indenture and this Fifth Supplemental Indenture shall be read together and shall have effect, as far as practicable, as though all the provisions of the Indenture and this Fifth Supplemental Indenture were contained in one instrument.

1.03	Application to Debt Securities Only

The provisions of this Fifth Supplemental Indenture shall be applicable to the Debt Securities only.

ARTICLE 2- AMENDMENT

2.01	Definition of “Consolidated Net Worth”.

The definition of “Consolidated Net Worth” set out in Section 1.01 of the Indenture is deleted and the following substituted therefor:

“Consolidated Net Worth” at any date of determination means the following amount, as shown on the most recent consolidated balance sheet of the Company and its Subsidiaries, determined on a consolidated basis in accordance with GAAP, as of the end of the most recent fiscal quarter of the Company ending at least 45 days prior to the date of determination: (i) the consolidated equity of the common stockholders of the Company plus (ii) the respective amounts reported with respect to any class or series of Preferred Stock of the Company (other than Exchangeable Stock or Redeemable Stock) but only to the extent of any cash received by the Company upon issuance of such Preferred Stock, excluding

any gains or losses with respect to IRRM’s that have been recognized or reported under GAAP, but which do not reflect obligations of any person due and payable at that time.

2.02	Definition of “GAAP”.

The definition of “GAAP” set out in Section 1.01 of the Indenture is deleted and the following substituted therefor:

“GAAP” means International Financial Reporting Standards as issued by the International Accounting Standards Board in effect as of January 1, 2011.

2.03	Definition of “Outstanding”.

The definition of “Outstanding” set out in Section 1.01 of the Indenture is deleted and the following substituted therefor:

“Outstanding”, when used with respect to the Debt Securities or any series of Debt Securities, means, as of the date of determination, all Debt Securities or all Debt Securities of that series, as the case may be, theretofore authenticated and delivered under this Indenture, except:

(i) Debt Securities or Debt Securities of that series, as the case may be, theretofore cancelled by the Trustee or delivered to the Trustee for cancellation;

(ii) Debt Securities or Debt Securities of that series, as the case may be, for whose payment or redemption money in the necessary amount has been theretofore deposited with the Trustee or any paying agent (other than the Company) in trust or set aside and segregated in trust by the Company (if the Company shall act as its own paying agent) for the Holders of such Debt Securities; provided, however, that, if such Debt Securities have not yet matured, notice of the redemption of such Debt Securities has been duly given pursuant to this Indenture; and

(iii) Debt Securities or Debt Securities of that series, as the case may be, which have been paid pursuant to Section 2.09 or in exchange for or in lieu of which other Debt Securities have been authenticated and delivered pursuant to this Indenture, other than any such Debt Securities in respect of which there shall have been presented to the Trustee proof satisfactory to it that such Debt Securities are held by a bona fide purchaser in whose hands such Debt Securities are valid obligations of the Company;

provided, however, that in determining whether the Holders of the requisite principal amount of the Outstanding Debt Securities or the Outstanding Debt Securities of any series, as the case may be, have given any request, demand, authorization, direction, notice, consent or waiver hereunder, Debt Securities owned by the Company or any other obligor upon the Debt Securities or any Affiliate of the Company or of such other obligor shall be disregarded and deemed not to be Outstanding, except that, in determining whether the Trustee shall be protected in relying upon any such request, demand, authorization, direction, notice, consent or waiver, only Debt Securities which the Trustee actually knows to be so owned shall be so disregarded. Debt Securities so owned which have been pledged in good faith may be regarded as Outstanding if the pledge establishes to the satisfaction of the Trustee the pledgee’s right so to act with respect to such Debt Securities and that the pledgee is not the Company or any other obligor upon the Debt Securities or an Affiliate of the Company or of such other obligor. In determining whether the Holders of the requisite principal amount of Outstanding Debt Securities have given any request, demand, authorization, direction, notice, consent or waiver hereunder, the principal amount of an Original Issue Discount Debt Security that shall be deemed to be Outstanding for such purposes shall be the amount of the principal thereof that would be due and payable as of the date of such determination upon a declaration of acceleration of the maturity thereof pursuant to Section 6.01. In determining whether the Holders of the requisite principal amount of the Outstanding Debt Securities or the Outstanding Debt Securities of any series, as the case may be, have given any request, demand, authorization, direction, notice, consent or waiver hereunder, the principal amount of a Debt Security denominated in one or more Foreign Currencies that shall be deemed Outstanding for such purposes shall be the Dollar Equivalent, determined in the manner provided as contemplated by Section 2.03 on the date of original issuance of such Debt Security, of the principal amount (or, in the case of any Original Issue Discount Debt Security, the Dollar Equivalent on the date of original issuance of such Security of the amount determined as provided in the preceding sentence above) of such Debt Security.

2.04	Definition of “Permitted Liens”.

Clause (i) of the definition of “Permitted Liens” set out in Section 1.01 of the Indenture is deleted and the following substituted therefor:

(i) pledges or deposits by such person under workmen’s compensation laws, unemployment insurance laws or similar

legislation, or good faith deposits in connection with bids, tenders, contracts (other than for the payment of Indebtedness) or leases to which such person is a party, or deposits to secure public or statutory obligations of such person or deposits of cash or government bonds to secure surety or appeal bonds to which such person is a party, or deposits as security for taxes or import duties or for the payment of rent, in each case Incurred in the ordinary course of business;

2.05	Definitions.

Section 1.01 of the Indenture is amended to add the following definition after the definition of “Investment”:

“IRRM” means: (i) any interest rate or foreign exchange risk management agreement or product, including (A) interest rate or currency exchange swap agreements, (B) futures contracts, (C) forward exchange, purchase or sale agreements, and (D) any other agreements to fix or hedge interest rates or foreign exchange rates; and (ii) any agreement for the making or taking of delivery of any commodity (including, for certainty, natural gas, propane, water, electricity and electrical power), any commodity swap agreement, floor, cap or collar agreement or commodity future or option or other similar agreements or arrangements, or any combination thereof, where the subject matter of the same is any commodity or the price, value or amount payable thereunder is dependent or based upon the price of any commodity or fluctuations in the price of any commodity, but shall not include any agreement for the physical purchase or sale of a commodity (including, for certainty, natural gas, propane, water, electricity and electrical power) entered into in the ordinary course of business unless (i) such agreement is entered into for hedging or speculative purposes, or (ii) such agreement is required to be accounted for on a ▇▇▇▇ to market (“fair value”) basis under GAAP.

2.06	Additional Guarantees.

Section 4.11 of the Indenture is deleted and the following substituted therefor:

Additional Guarantees; Limitation on Subsidiary Indebtedness.

The Company shall not permit any Restricted Subsidiary to Incur any Indebtedness unless, at the time of such Incurrence, such Restricted Subsidiary has Guaranteed all the obligations of the Company with respect to the Debt Securities pursuant to the terms of the Indenture, such Guarantee to be in the form provided for in Exhibit B to this Indenture. The foregoing shall not apply to (1)

any Indebtedness Incurred by a Restricted Subsidiary to finance its working capital requirements; provided, however, that the aggregate amount of such Indebtedness Incurred by all Restricted Subsidiaries who have not Guaranteed all the obligations of the Company with respect to the Debt Securities pursuant to the terms of the Indenture and outstanding at any time shall not exceed $50,000,000; (2) any Indebtedness secured by (a) Permitted Liens or (b) Liens to which the exception in Section 4.08 is applicable; provided, however, that the aggregate amount of all such Indebtedness and all Indebtedness of the Company secured by such Liens (other than Permitted Liens), plus all Attributable Indebtedness of the Company and its Restricted Subsidiaries with respect to Sale/Leaseback Transactions permitted under Section 4.09, does not exceed 10% of Consolidated Net Worth; (3) any Attributable Indebtedness (a) with respect to a Sale/Leaseback Transaction which is permitted under Section 4.09 or (b) to which the provisions under Section 4.09 are not applicable; and (4) any Indebtedness owed to and held by the Company, another Restricted Subsidiary, a shareholder of a Restricted Subsidiary or any affiliate of a shareholder of a Restricted Subsidiary; provided, however, that any subsequent transfer of any such Indebtedness or any subsequent transfer of any Capital Stock of such Restricted Subsidiary, or any other event, that results in such Restricted Subsidiary ceasing to be a Restricted Subsidiary, shall be deemed to constitute the Incurrence of such Indebtedness at such time. Subject to Section 11.02(b), no Guarantor shall be released from its Guarantee provided pursuant to this Section or Section 10.02(a) unless (i) such Guarantor ceases to be a Restricted Subsidiary or (ii) such Guarantor has been discharged from all its obligations with respect to all Indebtedness Incurred by such Guarantor (other than such Guarantee and Indebtedness described in clause (4) in the immediately preceding sentence) and such Guarantor has not had any Indebtedness (other than such Guarantee and Indebtedness described in clause (4) in the immediately preceding sentence) outstanding for a period of 91 days.

2.07	Limitations with Respect to Unrestricted Subsidiaries

The heading of Section 4.12 of the Indenture is deleted and the following substituted therefor:

Limitations on Affiliate Transactions and Unrestricted Subsidiaries

2.08	Waiver of Certain Covenants.

Section 4.13 of the Indenture is deleted and the following substituted therefor:

The Company may omit in any particular instance to comply with any term, provision or condition set forth in Section 4.08, Section 4.09, Section 4.11 and Section 4.12, with respect to the Debt Securities or with respect to the Debt Securities of any series if before the time for such compliance the Holders of at least a majority in principal amount of the Outstanding Debt Securities or of the Outstanding Debt Securities of such series, as the case may be, shall either waive in writing such compliance in such instance or generally waive compliance with such term, provision or condition, but no such waiver shall extend to or affect such term, provision or condition except to the extent so expressly waived, and, until such waiver shall become effective, the obligations of the Company and the duties of the Trustee in respect of any such term, provision or condition shall remain in full force and effect.

2.09	Reports by Company.

Section 5.03 of the Indenture is amended by adding the following subsection:

(d) Notwithstanding any other provision of this Section 5.03, the Company shall not be required to provide to the Trustee any information which is posted on the Canadian Securities Administrators’ System for Electronic Document Analysis and Retrieval (SEDAR) at ▇▇▇.▇▇▇▇▇.▇▇▇, the Electronic Data-Gathering, Analysis and Retrieval (▇▇▇▇▇) system maintained by the Securities and Exchange Commission at ▇▇▇.▇▇▇.▇▇▇, or the Company’s website.

2.10	Events of Default.

Section 6.01(f) of the Indenture is amended by deleting the symbol and number $10,000,000 and substituting therefor the symbol and number $50,000,000.

2.11	Acceleration.

Section 6.02 of the Indenture is deleted and the following substituted therefor:

If an Event of Default with respect to the Debt Securities, or a series of Debt Securities, as the case may be (other than an Event of Default specified in Section 6.01(g) (with respect to the Company) or (h) (with respect to the Company)) occurs and is continuing, the Trustee by notice to the Company, or the Holders of at least 25% in principal amount of the Outstanding Debt Securities or the Outstanding Debt Securities of such series, as the case may be, may declare the principal of and accrued but unpaid interest on all the Debt Securities or all the Debt Securities of such series to be due and payable. Upon such a declaration, such

principal and interest shall be due and payable immediately. If an Event of Default specified in 6.01(g) (with respect to the Company) or (h) (with respect to the Company) occurs, and is not cured within the time period permitted, the principal of and interest on all the Debt Securities shall ipso facto become and be immediately due and payable without any declaration or other act on the part of the Trustee or any Holders. The Holders of a majority in principal amount of the Outstanding Debt Securities, or the Outstanding Debt Securities of a series, by notice to the Trustee may rescind an acceleration with respect to the Debt Securities or such series of Debt Securities, as the case maybe, if the rescission would not conflict with any judgment or decree and if all existing Events of Default have been cured or waived except non-payment of principal or interest that has become due solely because of acceleration. No such rescission shall affect any subsequent Default or impair any right consequent thereto.

2.12	Waiver of Past Defaults.

Section 6.04 of the Indenture is deleted and the following substituted therefor:

The Holders of a majority in principal amount of the Outstanding Debt Securities or the Outstanding Debt Securities of a series, as the case may be, may waive an existing Default and its consequences except (i) a Default in the payment of the principal of or interest on the Debt Securities or the Debt Securities of such series, as the case may be, or (ii) a Default in respect of a provision that under Section 9.02 cannot be waived without the consent of each Debt Securityholder or each Debt Securityholder of such series, as the case may be, affected.

2.13	Control by Majority.

Section 6.05 of the Indenture is deleted and the following substituted therefor:

The Holders of a majority in principal amount of the Outstanding Debt Securities, or if the remedy relates only to a series of the Outstanding Debt Securities, of the Outstanding Debt Securities of such series, may direct the time, method and place of conducting any proceeding for any remedy available to the Trustee or of exercising any trust or power conferred on the Trustee with respect to the Debt Securities or the Debt Securities of such series, as the case may be. However, the Trustee may refuse to follow any direction that conflicts with law or this Indenture or, subject to Section 7.01 and if directed only by the Holders of Debt Securities of a series, that the Trustee determines is unduly prejudicial to the rights of other Debt Securityholders or would involve the Trustee

in personal liability; provided, however, that the Trustee may take any other action deemed proper by the Trustee that is not inconsistent with such direction. Prior to taking any action hereunder, the Trustee shall be entitled to indemnification satisfactory to it in its sole discretion against all losses, liability and expenses caused by taking or not taking such action.

2.14	Instruments Executed by Holders Bind Future Holders; Record Dates.

Section 8.04 of the Indenture is deleted and the following substituted therefor:

At any time prior to (but not after) the evidencing to the Trustee, as provided in Section 8.01, of the taking of any action by the Holders of the percentage in aggregate principal amount of the Debt Securities or the Debt Securities of any series, as the case may be, specified in this Indenture in connection with such action and subject to the following paragraph, any Holder of a Debt Security which is shown by the evidence to be included in the Debt Securities or series of Debt Securities, as the case may be, the Holders of which have consented to such action may, by filing written notice with the Trustee at its Corporate Trust Office and upon proof of holding as provided in Section 8.02, revoke such action as far as concerns such Debt Security. Except as aforesaid any such action taken by the Holder of any Debt Security shall be conclusive and binding upon such Holder and upon all future Holders and owners of such Debt Security and all past, present and future Holders of Coupons, if any, appertaining thereto, and of any Debt Security issued upon transfer thereof or in exchange or substitution therefore, irrespective of whether or not any notation in regard thereto is made upon such Debt Security or such other Debt Securities or Coupons. Any action taken by the Holders of the percentage in aggregate principal amount of the Debt Securities or the Debt Securities of any series, as the case may be, specified in this Indenture in connection with such action shall be conclusively binding upon the Company, the Trustee and the Holders of all the Debt Securities and Coupons or all the Debt Securities and Coupons of such series, as the case may be.

The Company may, but shall not be obligated to, fix a record date for the purpose of determining the Holders of Registered Securities or Holders of Registered Securities of any series entitled to give their consent or take any other action required or permitted to be taken pursuant to this Indenture. If a record date is fixed, then notwithstanding the immediately preceding paragraph, those persons who were Holders of Registered Securities or Holders of Registered Securities of such series, as the case may be, at the close of business on such record date (or their duly designated

proxies), and only those persons, (i) shall be entitled to give such consent or to revoke any consent previously given or to take any such action, whether or not such persons continue to be Holders of Registered Securities or Holders of Registered Securities of such series, as the case may be, after such record date and (ii) shall be taken into account for the purpose of determining whether Holders of the requisite proportion of Debt Securities Outstanding or Debt Securities of such series Outstanding, as the case may be, have authorized or agreed or consented to such action, and for that purpose the Debt Securities Outstanding or Debt Securities of such series Outstanding shall be computed as of such record date. No such consent shall be valid or effective for more than 120 days after such record date unless the consent of the Holders of the percentage in aggregate principal amount of the Debt Securities or the Debt Securities of such series, as the case may be, specified in this Indenture shall have been received within such 120-day period.

2.15	Modification of Indenture with Consent of Holders of Debt Securities.

The first paragraph of Section 9.02 of the Indenture is deleted in its entirety and the following substituted therefor:

Without notice to any Holder but with the consent (evidenced as provided in Section 8.01) of the Holders of not less than a majority in aggregate principal amount of the Outstanding Debt Securities or of the Outstanding Debt Series of each series affected by such supplemental Indenture, the Company, when authorized by a resolution of the Board of Directors, and the Trustee may from time to time and at any time enter into an Indenture or Indentures supplemental hereto (which shall conform to the provisions of the Trust Indenture Act as in force at the date of execution thereof) for the purpose of adding any provisions to or changing in any manner or eliminating any of the provisions of this Indenture or of any supplemental Indenture or of modifying in any manner the rights of the Holders of the Debt Securities or the Holders of the Debt Securities of such series; as the case may be, provided, however, that no such supplemental Indenture, without the consent of the Holders of each Outstanding Debt Security of any series so affected, shall (i) reduce the percentage in principal amount of Debt Securities or of Debt Securities of such series, as the case may be, whose Holders must consent to an amendment; (ii) reduce the rate of or extend the time for payment of interest on any Debt Security or Coupon of such series or reduce the amount of any payment to be made with respect to any Coupon of such series; (iii) reduce the principal of or extend the Stated Maturity of any Debt Security of such series; (iv) reduce the premium payable

upon the redemption of any Debt Security or change the time at which any Debt Security of such series may or shall be redeemed in accordance with Article III; (v) make any Debt Security or Coupon of such series payable in Currency other than that stated in the Debt Security of such series; (vi) in the case of any Debt Security or Coupons of such series, if any, appertaining thereto subordinated pursuant to Article XII, make any change in Article XII or the defined terms used therein that adversely affects the rights of any Holder under Article XII; (vii) release any security that may have been granted in respect of the Debt Securities of such series; (viii) make any change in Section 6.06 or this Section 9.02; (ix) limit the obligation of the Company to pay additional interest pursuant to Section 4.06; (x) make any change to the provisions of Section 4.07 that adversely affects the rights of any Holder of the Debt Securities of such series, (xi) impair the rights of any Holder of the Debt Securities of such series to receive payment of principal of and interest on such Holder’s Debt Securities of such series (including any Additional Amount) on or after the due dates therefor or to institute suit for the enforcement of any payment on or with respect to such Holder’s Debt Securities of such series, (xii) make any change in the Guarantee of the Debt Securities of such series by any Guarantor that would adversely affect any Holder of the Debt Securities of such series or (xiii) limit the obligation of the Company to maintain a paying agency outside the United States for payment on Bearer Securities as provided in Section 4.02 or limit the obligation of the Company to redeem a Bearer Security as provided in Section 3.02(2).

2.16	Satisfaction and Discharge of Indenture; Defeasance.

Section 11.02(b)(ii) of the Indenture is deleted and the following substituted therefor:

(ii) its obligations with respect to the Debt Securities of such series under Sections 4.08, 4.09, 4.11, 4.12 and under Section 2.19 of the Fifth Supplemental Indenture, the operation of Sections 6.01(e), (f), (g) (with respect to Significant Subsidiaries only), (h) (with respect to Significant Subsidiaries only), (i) and (j) and the limitations in Section 10.02 (“covenant defeasance option”).

Section 2.04 of the Second Supplemental Indenture is deleted in its entirety.

2.17	Required Notices or Demands.

Section 13.03 of the Indenture is amended by adding the words “or Canada” after the words “by being deposited postage prepaid in a post office letter box in the United States” each time such words appear.

2.18	No Jury Trial.

Article XIII of the Indenture is amended by adding the following section:

SECTION 13.15. No Jury Trial. THE PARTIES HERETO HEREBY WAIVE TRIAL BY JURY IN ANY ACTION BROUGHT ON OR WITH RESPECT TO THIS AGREEMENT, THE DEBT SECURITIES OR ANY OTHER DOCUMENT EXECUTED IN CONNECTION HEREWITH OR THEREWITH.

2.19	No Obligation to Verify.

Article XIII of the Indenture is amended by adding the following section:

SECTION 13.16. No Obligation to Verify. In respect of this Indenture, the Trustee shall not have any duty or obligation to verify or confirm that the Person sending instructions, directions, reports, notices or other communications or information by electronic transmission is, in fact, a Person authorized to give such instructions, directions, reports, notices or other communications or information on behalf of the party purporting to send such electronic transmission; and the Trustee shall not have any liability for any losses, liabilities, costs or expenses incurred or sustained by any party as a result of such reliance upon or compliance with such instructions, directions, reports, notices or other communications or information. Each other party agrees to assume all risks arising out of the use of electronic methods to submit instructions, directions, reports, notices or other communications or information to the Trustee, including without limitation the risk of the Trustee acting on unauthorized instructions, notices, reports or other communications or information, and the risk of interception and misuse by third parties. Any reference in this Indenture to providing notices or other communications by mail shall be deemed to include the provision of such notices or communications by electronic transmission.

2.20	Change of Control

Section 2.02 of the Second Supplemental Indenture is deleted and the following substituted therefor:

The following is added as an additional covenant of the Company with respect to any series of the Debt Securities, unless otherwise specified as to that series pursuant to Section 2.03 of the Original Indenture:

(A) Upon the occurrence of a Change of Control Triggering Event, the Company shall make an offer (a “Change of Control Offer”) to each Holder of Debt Securities of any series to which this Section 2.02 is applicable to repurchase all or any part (equal to $1,000 or an integral multiple thereof) of each Holder’s Debt Securities of such series at a purchase price equal to 101% of the aggregate principal amount thereof plus accrued and unpaid interest thereon, if any, to the date of purchase (provided, however, that instalments of interest whose interest payment date is on or prior to the Change of Control Payment Date, described below, shall be payable to the Holders of the Debt Securities of such series registered as such at the close of business on the regular record date for such interest according to their terms and the provisions of Section 2.12 of the Indenture) (the “Change of Control Payment”). Within 30 days following the date upon which a Change of Control Triggering Event occurred, or at the Company’s option, prior to any Change of Control but after the public announcement of the pending Change of Control, the Company shall mail, by first class mail, a notice to each Holder of Debt Securities of such series describing the transaction or transactions that constitute the Change of Control Triggering Event and stating: (1) that the Change of Control Offer is being made pursuant to this Section 2.02 and that all Debt Securities of such series tendered will be accepted for payment; (2) the purchase price and the purchase date, which shall be no earlier than 30 days and no later than 60 days from the date such notice is mailed (the “Change of Control Payment Date”); (3) that if the notice is mailed prior to the date of consummation of the Change of Control, the Change of Control Offer is conditioned on the Change of Control being consummated on or prior to the Change of Control Payment Date; (4) that any Debt Security of such series not tendered will continue to accrue interest; (5) that, unless the Company defaults in the payment of the Change of Control Payment, all Debt Securities of such series accepted for payment pursuant to the Change of Control Offer shall cease to accrue interest after the Change of Control Payment Date; (6) that Holders electing to have any Debt Securities of such series purchased pursuant to a Change of Control Offer will be required to surrender the Debt Securities of such series to the paying agent at the address specified in the notice prior to the close of business on the third Business Day preceding the Change of Control Payment Date; (7) that Holders will be entitled to withdraw their election if the paying agent receives, not later than the close of business on the second Business Day preceding the Change of Control Payment Date, a facsimile, transmission or letter setting forth the name of the Holder, the principal amount of Debt Securities of such series delivered for purchase, and a

statement that such Holder is withdrawing its election to have the Debt Securities of such series purchased; and (8) that Holders whose Debt Securities are being purchased only in part will be issued new Debt Securities of such series equal in principal amount to the unpurchased portion of the Debt Securities of such series surrendered, which unpurchased portion must be equal to $1,000 in principal amount or an integral multiple thereof. The Company shall notify the Trustee, at least 15 days (or such shorter period as is acceptable to the Trustee) prior to the mailing of the Change of Control Offer, of the Company’s obligation to make the Change of Control Offer, and the Change of Control Offer shall be mailed by the Company, or at the Company’s request, by the Trustee in the name and at the expense of the Company. The Company shall comply with the requirements of Section 14(e) of and Rule 14e-l under the Exchange Act and any other securities laws and regulations thereunder to the extent such laws and regulations are applicable in connection with the repurchase of Debt Securities as a result of a Change of Control Triggering Event. To the extent that the provisions of any securities laws or regulations conflict with the Change of Control provisions of this Indenture, the Company will comply with the applicable securities laws and regulations and will not be deemed to have breached its obligations hereunder by virtue of such conflict.

(B) Holders of Debt Securities electing to have such Debt Securities purchased pursuant to a Change of Control Offer will be required to surrender their Debt Securities, with the form entitled “Option of Holder to Elect Purchase” on the reverse of the Debt Securities completed, to the paying agent at the address specified in the notice, or transfer their Debt Securities to the paying agent by book-entry transfer pursuant to the applicable procedures of the paying agent, prior to the close of business on the third Business Day prior to the Change of Control Payment Date.

(C) On the Change of Control Payment Date, the Company shall, to the extent lawful, (1) accept for payment all Debt Securities of such series or portions thereof properly tendered pursuant to the Change of Control Offer; (2) deposit with the paying agent, by 11:00 a.m. (New York time) on the Business Day prior to the Change of Control Payment Date, an amount equal to the Change of Control Payment in respect of all Debt Securities of such series or portions thereof so tendered; and (3) deliver or cause to be delivered to the Trustee the Debt Securities of such series so accepted together with an Officers’ Certificate stating the aggregate principal amount of Debt Securities of such series or portions thereof being purchased by the Company. The paying agent shall promptly mail to each such Holder of Debt Securities

of such series so tendered the Change of Control Payment for such Debt Securities so tendered, and the Trustee shall promptly authenticate and mail (or cause to be transferred by book entry) to each Holder a new Debt Security of such series equal in principal amount to any unpurchased portion of the Debt Securities of such series surrendered by such Holder, if any; provided, that each such new Debt Security of such series shall be in a principal amount of $2,000 or an integral multiple of $1,000 in excess thereof. The Company shall publicly announce the results of the Change of Control Offer on or as soon as practicable after the Change of Control Payment Date.

(D) Notwithstanding anything to the contrary in this Section 2.02, the Company shall not be required to make a Change of Control Offer upon a Change of Control Triggering Event if a third party makes the Change of Control Offer in the manner at the times and otherwise in compliance with the requirements set forth in this Section 2.02 and all other provisions of the Indenture applicable to a Change of Control Offer made by the Company and purchases all Debt Securities of the applicable series properly tendered and not withdrawn under such Change of Control Offer.

(E) For purposes of this Section 2.02, the following terms shall have the respective meanings specified in this paragraph (E):

“Board of Directors” means the Board of Directors of the Company.

“Change of Control” means the occurrence of any one of the following:

(1) the direct or indirect sale, lease, transfer, conveyance or other disposition (other than by way of amalgamation, merger or consolidation), in one or a series of related transactions, of all or substantially all of the properties or assets of the Company and its Restricted Subsidiaries, taken as a whole, to any “person” (as that term is used in Section 13(d)(3) of the Exchange Act) other than the Company or a Restricted Subsidiary;

(2) the adoption of a plan relating to the liquidation or dissolution of the Company;

(3) the consummation of any transaction (including, without limitation, any amalgamation, merger or consolidation) the result of which is that any “person” (as defined in clause (1) of this definition), becomes the beneficial owner (as defined in Rules 13d-3 and 13d-5 under the Exchange Act), directly or indirectly, of

more than 50% of the outstanding Voting Stock of the Company, measured by voting power rather than number of shares;

(4) the first day on which a majority of the members of the Board of Directors are not Continuing Directors; or

(5) the Company amalgamates or consolidates with, or merges with or into, any person, or any person amalgamates or consolidates with, or merges with or into, the Company, in any such event pursuant to a transaction in which any of the outstanding Voting Stock of the Company or of such other person is converted into or exchanged for cash, securities or other property, other than any such transaction where the Voting Stock of the Company outstanding immediately prior to such transaction constitute, or is converted into or exchanged for, a majority of the Voting Stock of the surviving or transferee person, measured by voting power rather than number of shares, immediately after giving effect to such transaction.

“Change of Control Triggering Event” means the occurrence of both a Change of Control and a Ratings Decline.

“Continuing Directors” means, with respect to a series of Debt Securities, as of any date of determination, any member of the Board of Directors who:

(1) was a member of the Board of Directors on the date of original issuance of the series of Debt Securities for any series of Debt Securities issued after June 30, 2002; or

(2) was nominated for election or elected to the Board of Directors with the approval of a majority of the Continuing Directors who were members of the Board of Directors at the time of such nomination or election.

“Fitch” means Fitch Inc., a subsidiary of Fimalac, S.A., or any successor to the rating agency business thereof.

“Investment Grade Rating” means a rating equal to or greater than BBB- by S&P, Baa3 by ▇▇▇▇▇’▇ and BBB- by Fitch or the equivalent thereof under any new ratings system if the ratings system of any such agency shall be modified after the Issue Date, or the equivalent rating of any other Rating Agency selected by the Company as provided in the definition of Rating Agency.

“Moody’s” means ▇▇▇▇▇’▇ Investors Service, Inc., a subsidiary of ▇▇▇▇▇’▇ Corporation, or any successor to the rating agency business thereof.

“Rating Agencies” means (1) S&P, ▇▇▇▇▇’▇ and Fitch or (2) if S&P, ▇▇▇▇▇’▇ and Fitch or any two of them cease to rate the Debt Securities or cease to make a rating of the Debt Securities publicly available, an entity registered as a “nationally recognized statistical rating organization” (registered as such pursuant to Rule 17g-1 of the Exchange Act) then making a rating of the Debt Securities publicly available selected by the Company (as certified by an Officer’s Certificate) which shall be substituted for S&P, ▇▇▇▇▇’▇ or Fitch, as the case may be.

“Ratings Decline” means the occurrence of the following on any date during the Trigger Period: (1) in the event that the Debt Securities have an Investment Grade Rating by all three Rating Agencies, the Debt Securities cease to have an Investment Grade Rating by two of the three Rating Agencies, (2) in the event that the Debt Securities have an Investment Grade Rating by only two Rating Agencies, the Debt Securities cease to have an Investment Grade Rating by both such Rating Agencies, or (3) in the event that the Debt Securities do not have an Investment Grade Rating or have an Investment Grade Rating by only one of the Rating Agencies, the rating of the Debt Securities by two of the three Rating Agencies (or, if there are less than three Rating Agencies rating the Debt Securities, the rating of each Rating Agency) decreases by one or more gradations (including gradations within ratings categories as well as between ratings categories) or is withdrawn.

“S&P” means Standard & Poor’s Ratings Group, a division of The ▇▇▇▇▇▇-▇▇▇▇ & Companies, Inc., or any successor to the rating agency business thereof.

“Trigger Period” means the period commencing 60 days prior to the first public announcement by the Company of any Change of Control (or pending Change of Control) and ending 60 days following consummation of such Change of Control (which period will be extended following consummation of a Change of Control for so long as any of the Rating Agencies then rating the Company or the Debt Securities has publicly announced that it is considering a possible ratings change).

“Voting Stock” of any person as of any date means the Capital Stock of such person that is at the time entitled to vote generally in the election of the board of directors of such person.

2.21	Additional Event of Default

In addition to the Events of Default set forth in Section 6.01 of the Original Indenture, an Event of Default with respect to the Debt Securities of a series occurs if the Company fails to comply with Section 2.20 of this Fifth Supplemental Indenture.

Section 2.03 of the Second Supplemental Indenture is deleted in its entirety.

2.22	Change of Control Amendment

Section 2.01 of the Fourth Supplemental Indenture is deleted in its entirety.

2.23	Form of Note Amendment

Section 2.03 of the Fourth Supplemental Indenture is deleted in its entirety and Schedule I of the Fourth Supplemental Indenture is deleted in its entirety.

2.24	Form of Note

The form of Debt Security set forth in Exhibit I to the Fourth Supplemental Indenture shall be deleted in its entirety and the form of Debt Security attached hereto as Schedule I is substituted therefor and shall be the form of Debt Security.

ARTICLE 3- MISCELLANEOUS

3.01	Effectiveness.

This Fifth Supplemental Indenture shall become effective upon its execution and delivery by the Company and the Trustee. Upon the execution and delivery of this Fifth Supplemental Indenture by the Company and the Trustee, the Indenture shall be supplemented in accordance herewith, and this Fifth Supplemental Indenture shall form a part of the Indenture for all purposes, and the rights of every Holder of Debt Securities shall hereafter be determined, exercised and enforced subject in all respects to the terms of this Fifth Supplemental Indenture, and all the terms and conditions of the Indenture as amended or supplemented by this Fifth Supplemental Indenture for any and all purposes.

3.02	Indenture Remains in Full Force and Effect.

Except as supplemented hereby, all provisions in the Indenture shall remain in full force and effect.

3.03	Indenture and Fifth Supplemental Indenture Construed Together.

This Fifth Supplemental Indenture is an indenture supplemental to the Indenture, and the Indenture and this Fifth Supplemental Indenture shall henceforth be read and construed together.

3.04	Confirmation and Preservation of Indenture.

The Indenture as supplemented by this Fifth Supplemental Indenture is in all respects confirmed and preserved.

3.05	Conflict with Trust Indenture Act.

If any provision of this Fifth Supplemental Indenture limits, qualifies or conflicts with any provision of the Trust Indenture Act of 1939, as amended (the “Trust Indenture Act”), that is required under the Trust Indenture Act to be part of and govern any provision of this Fifth Supplemental Indenture, the provision of the Trust Indenture Act shall control. If any provision of this Fifth Supplemental Indenture modifies or excludes any provision of the Trust Indenture Act that may be so modified or excluded, the provision of the Trust Indenture Act shall be deemed to apply to the Indenture as so modified or to be excluded by this Fifth Supplemental Indenture, as the case may be.

3.06	Severability.

In case any provision in this Fifth Supplemental Indenture shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby.

3.07	Headings.

The Article and Section headings of this Fifth Supplemental Indenture have been inserted for convenience of reference only, are not to be considered a part of this Fifth Supplemental Indenture and shall in no way modify or restrict any of the terms or provisions hereof.

3.08	Benefits of Supplemental Indenture, etc.

Nothing in this Fifth Supplemental Indenture or the Debt Securities, express or implied, shall give to any person, other than the parties hereto and thereto and their successors hereunder and thereunder and the Holders of the Debt Securities, any benefit of any legal or equitable right, remedy or claim under the Indenture, this Fifth Supplemental Indenture or the Debt Securities.

3.09	Successors.

All agreements of the Company in this Fifth Supplemental Indenture shall bind its successors. All agreements of the Trustee in this Fifth Supplemental Indenture shall bind its successors.

3.10	Trustee Not Responsible for Recitals.

The recitals contained herein shall be taken as the statements of the Company, and the Trustee assumes no responsibility for their correctness. The Trustee shall not be liable or

responsible for the validity or sufficiency of this Fifth Supplemental Indenture or the due authorization of this Fifth Supplemental Indenture by the Company.

3.11	Certain Duties and Responsibilities of the Trustee.

In entering into this Fifth Supplemental Indenture, the Trustee shall be entitled to the benefit of every provision of the Indenture relating to the conduct of, affecting the liability of or affording protection to the Trustee, whether or not elsewhere herein so provided.

3.12	Governing Law.

THE LAWS OF THE STATE OF NEW YORK SHALL GOVERN THIS FIFTH SUPPLEMENTAL INDENTURE WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAWS.

3.13	Acceptance of Trusts.

The Trustee hereby accepts the trust in this Fifth Supplemental Indenture declared and provided for and agrees to perform the same upon the terms and conditions and subject to the provisions set forth in the Indenture as amended by this Fifth Supplemental Indenture.

3.14	Counterpart Originals.

The parties may sign any number of copies of this Fifth Supplemental Indenture. Each signed copy shall be an original, but all of them together represent the same agreement.

[The remainder of this page is intentionally left blank]

IN WITNESS WHEREOF, the parties hereto have caused this Fifth Supplemental Indenture to be duly executed, all as of the date and year first above written.


METHANEX CORPORATION, as Issuer

By:		/s/ ▇▇▇ ▇▇▇▇▇▇▇
		▇▇▇ ▇▇▇▇▇▇▇ Senior Vice President, Corporate Development and Chief Financial Officer


THE BANK OF NEW YORK MELLON, as Trustee

By:		/s/ ▇▇▇▇▇ ▇▇▇▇▇▇
		Name: ▇▇▇▇▇ ▇▇▇▇▇▇
		Title: Vice President

SCHEDULE I

[FORM OF FACE DEBT SECURITY]

[GLOBAL DEBT SECURITIES LEGEND]

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), NEW YORK, NEW YORK, TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO., OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL IN AS MUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

TRANSFERS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS IN WHOLE, BUT NOT IN PART, TO NOMINEES OF DTC OR TO A SUCCESSOR THEREOF OR SUCH SUCCESSOR’S NOMINEE AND TRANSFERS OF PORTIONS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE RESTRICTIONS SET FORTH IN THE INDENTURE REFERRED TO ON THE REVERSE HEREOF.


Number [•]				U.S.$[•]

[•]% Debt Security Due [•]

METHANEX CORPORATION, a Canadian corporation, promises to pay to [•] or registered assigns, the principal sum of [•] on [•], [•].


				CUSIP [•]

SEE REVERSE FOR

CERTAIN DEFINITIONS

Interest Payment Dates: [•] and [•]

Record Dates: [•] and [•]

Additional provisions of this Debt Security are set forth on the other side of this Debt Security.

Date:

METHANEX CORPORATION

By:

Corporate Secretary

Chief Financial Officer


TRUSTEE’S CERTIFICATE OF AUTHENTICATION THE BANK OF NEW YORK MELLON

	as Trustee, certifies that this is one of the Debt Securities referred to in the Indenture	[Seal]

By
	Authorized Signatory

[FORM OF REVERSE SIDE OF DEBT SECURITY]

METHANEX CORPORATION

[•]% DEBT SECURITY DUE [•]

1. Interest.

Methanex Corporation, a Canadian corporation (such corporation, and its successors and assigns under the Indenture hereinafter referred to, being herein called the “Company”), promises to pay interest on the principal amount of this Debt Security at the rate per annum shown above. The Company will pay interest semiannually on [•] and [•] of each year. Interest on the Debt Securities will accrue from the most recent date to which interest has been paid or, if no interest has been paid, from •, •. Interest will be computed on the basis of a 360-day year of twelve 30-day months. The Company shall pay interest on overdue principal at the rate borne by the Debt Securities plus 1% per annum, and it shall pay interest on overdue installments of interest at the same rate to the extent lawful.

2. Method of Payment.

The Company will pay interest on the Debt Securities (except defaulted interest) to the persons who are registered holders of Debt Securities at the close of business on the [•] or [•] next preceding the interest payment date even if Debt Securities are cancelled after the record date and on or before such interest payment date. Holders must surrender Debt Securities to a Paying Agent to collect principal payments. The Company will pay principal and interest in money of the United States that at the time of payment is legal tender for payment of public and private debts. Payments in respect of the Debt Securities represented by a Global Security (including principal, premium and interest) will be made by wire transfer of immediately available funds to the account of The Depository Trust Company as specified by The Depository Trust Company. The Company will make all payments of interest in respect of the definitive Debt Securities, by mailing a check to the registered address of each Holder thereof.

3. Paying Agent and Registrar.

Initially, The Bank of New York Mellon, a New York corporation authorized to do a banking business (“Trustee”), will act as Paying Agent and Registrar. The Company may appoint and change any Paying Agent, Registrar or co-registrar without notice. The Company or any of its domestically incorporated wholly owned Subsidiaries may act as Paying Agent, Registrar or co-registrar.

4. Indenture.

The Company issued the Debt Securities under an Indenture dated as of July 20, 1995 (“Original Indenture”), as supplemented by a First Supplemental Indenture dated June 18, 2002, a Second Supplemental Indenture dated June 19, 2002 (“Second Supplemental Indenture”), a Third Supplemental Indenture dated December 9, 2003, a Fourth Supplemental Indenture dated August 3, 2005 (“Fourth Supplemental Indenture”) and a Fifth Supplemental Indenture dated February •, 2012 (“Fifth Supplemental Indenture” and together with the Original Indenture, Second Supplemental Indenture and Fourth Supplemental Indenture, the “Indenture”), between the Company and the Trustee. The terms of the Debt Securities include those stated in the Indenture and those made part of the Indenture by reference to the Trust Indenture Act of 1939 (15 U.S.C. § 77aaa-77bbbb) as in effect on the date of the Indenture (the “Act”). Terms defined in the Indenture and not defined herein have the meanings ascribed thereto in the Indenture. The Debt Securities are subject to all such terms, and Debt Securityholders are referred to the Indenture and the Act for a statement of those terms.

The Debt Securities are general unsecured obligations of the Company unlimited in amount (subject to Section 2.07 of the Indenture). The Indenture imposes certain limitations on the creation of Liens by the

Company and the Subsidiaries, sale and leaseback transactions, transactions with respect to Unrestricted Subsidiaries, and the ability of the Company or a Restricted Subsidiary that is Guarantor to merge with or into another entity. The limitations are subject to a number of important qualifications and exceptions.

5. Optional Redemption.

The Debt Securities will be redeemable as a whole or in part, at our option at any time, at a redemption price equal to the greater of (1) 100% of the principal amount of the Debt Securities and (2) the sum of the present values of the remaining scheduled payments of principal and interest thereon (exclusive of interest accrued to the date of redemption) discounted to the redemption date on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate plus basis points, plus in each case accrued interest thereon to the date of redemption.

“Comparable Treasury Issue” means the United States Treasury security or securities selected by an Independent Investment Banker as having an actual or interpolated maturity comparable to the remaining term of the Debt Securities to be redeemed that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of a comparable maturity to the remaining term of such Debt Securities.

“Comparable Treasury Price” means, with respect to any redemption date, (1) the average, as determined by the Independent Investment Banker, of the Reference Treasury Dealer Quotations for such redemption date, after excluding the highest and lowest of such Reference Treasury Dealer Quotations, or (2) if the Independent Investment Banker obtains fewer than four such Reference Treasury Dealer Quotations, the average of all such quotations.

“Independent Investment Banker” means one of the Reference Treasury Dealers appointed by the Company or, if such firm is unwilling or unable to select a Comparable Treasury Price, an independent banking institution of national standing in the United States, appointed by the Company.

“Reference Treasury Dealer” means each of • and • plus three others or their affiliates which are primary U.S. Government securities dealers appointed by the Company and their respective successors; provided, however, that if any of the foregoing or their affiliates shall cease to be a primary U.S. Government securities dealer in The City of New York (a “Primary Treasury Dealer”), the Company shall substitute therefor another Primary Treasury Dealer, if one is available.

“Reference Treasury Dealer Quotations” means, with respect to each Reference Treasury Dealer and any redemption date, the average, as determined by the Independent Investment Banker, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Independent Investment Banker by such Reference Treasury Dealer at 3:30 p.m. New York time on the third Business Day preceding such redemption date.

“Treasury Rate” means, with respect to any redemption date, the rate per annum, as determined by the Independent Investment Banker, equal to the semi-annual equivalent yield to maturity or interpolated (on a day count basis) of the Comparable Treasury Issue, assuming a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price for such redemption date.

6. Special Tax Redemption.

If, as a result of any change in, or amendment to, the laws (including any regulations promulgated thereunder) of Canada (or any political subdivision or taxing authority thereof or therein), or any change in, or amendment to, any official position regarding the application or interpretation of such laws or regulations, which change or amendment is announced or becomes effective on or after [•], [•]. the Company has become or would become obligated to pay, on the next date on which any amount would be payable with respect to the Debt Securities, any Additional Amounts in accordance with Section 4.07 of the Indenture, then the Company may, at its option, redeem the Debt Securities, as a whole but not in part, at a redemption price equal to 100% of their principal

amount, plus accrued and unpaid interest (if any) to the redemption date; provided that the Company shall have determined, in its business judgment, that the obligation to pay such Additional Amounts cannot be avoided by the use of reasonable measures available to the Company, not including substitution of the obligor under the Debt Securities.

7. Notice of Redemption.

Notice of redemption will be mailed not less than 30 days but not more than 60 days before the redemption date to each Holder of Debt Securities to be redeemed at his registered address. Debt Securities in denominations larger than U.S.$2,000 may be redeemed in part but only in whole multiples of U.S.$1,000. If money sufficient to pay the redemption price of and accrued and unpaid interest (if any) on all Debt Securities (or portions thereof) to be redeemed on the redemption date is deposited with the Paying Agent on or before the redemption date and certain other conditions are satisfied, on and after such date interest ceases to accrue on such Debt Securities (or such portions thereof) called for redemption.

8. Denominations; Transfer; Exchange.

The Debt Securities are in registered form without coupons in denominations of U.S.$1,000 and whole multiples of U.S.$1,000. A Holder may transfer or exchange Debt Securities in accordance with the Indenture. The Registrar may require a Holder, among other things, to furnish appropriate endorsements or transfer documents and to pay any taxes and fees required by law or permitted by the Indenture. The Registrar need not register the transfer of or exchange any Debt Securities selected for redemption (except, in the case of a Debt Security to be redeemed in part, the portion of the Debt Security not to be redeemed) or any Debt Securities for a period of 15 days before a selection of Debt Securities to be redeemed or 15 days before an interest payment date.

9. Persons Deemed Owners.

The registered holder of this Debt Security may be treated as the owner of it for all purposes.

10. Unclaimed Money.

If money for the payment of principal or interest remains unclaimed for two years, the Trustee or Paying Agent shall pay the money back to the Company at its request unless an abandoned property law designates another person. After any such payment, Holders entitled to the money must look only to the Company and not to the Trustee for payment.

11. Defeasance.

Subject to certain conditions, the Company at any time may terminate some or all of its and each Guarantor’s obligations under the Debt Securities and the Indenture if the Company deposits with the Trustee money or U.S. Government Obligations for the payment of principal and interest on the Debt Securities to redemption or maturity, as the case may be.

12. Amendment, Waiver.

Subject to certain exceptions set forth in the Indenture, (i) the Indenture or the Debt Securities may be amended with respect to the Debt Securities with the consent of the Holders of a least a majority in principal amount outstanding of the Debt Securities, and the Debt Securities of a series may be amended with respect to the Debt Securities of such series with the consent of the Holders of at least a majority in principal amount outstanding of the Debt Securities of such series, and (ii) any default or noncompliance with any provision may be waived with the written consent of the Holders of a majority in principal amount outstanding of the Debt Securities or of the Debt Securities of such series, as the case may be. Subject to certain exceptions set forth in the Indenture, without the consent of any Debt Securityholder, the Company and the Trustee may amend the Indenture or the Debt Securities of a series to cure any ambiguity, omission, defect or inconsistency, or to comply with Article X of the Original Indenture, or to add guarantees with respect to the Debt Securities of such series or to secure the Debt Securities of

such series, or to add additional covenants or to surrender rights and powers conferred on the Company or the Subsidiaries, or to comply with any requirement of the United States Securities and Exchange Commission in connection with the qualification of the Indenture under the Trust Indenture Act, or to make any change that does not adversely affect the rights of any Holder of Debt Securities of such series in any material respect.

13. Defaults and Remedies.

Under the Indenture, Events of Default with respect to a series of Debt Securities include (i) default for 30 days in payment of interest on the Debt Securities of such series (including any Additional Amounts when due); (ii) default in payment of principal on the Debt Securities of such series at maturity, upon redemption, upon declaration or otherwise, or failure by the Company to redeem or purchase Debt Securities of such series when required pursuant to the Indenture or the Debt Securities of such series; (iii) failure by the Company or a Restricted Subsidiary to comply with other agreements in the Indenture or the Debt Securities of such series, in certain cases subject to notice and lapse of time; (iv) certain accelerations (including failure to pay within any grace period after final maturity) of other Debt of the Company or a Restricted Subsidiary if the amount accelerated (or so unpaid) exceeds U.S.$50,000,000; (v) certain events of bankruptcy or insolvency with respect to the Company or a Significant Subsidiary; and (vi) except as otherwise provided in the Indenture, any Guarantee ceasing to be in full force and effect, or being declared by a court of competent jurisdiction or governmental authority to be invalid or unenforceable. If an Event of Default with respect to a series of Debt Securities occurs and is continuing, the Trustee or the Holders of at least 25% in principal amount of the Outstanding Debt Securities of such series may declare all the Debt Securities of such series to be due and payable immediately. Certain events of bankruptcy or insolvency are Events of Default that will result in the Debt Securities of a series being due and payable immediately upon the occurrence of such Events of Default.

Holders of Debt Securities may not enforce the Indenture or the Debt Securities except as provided in the Indenture. The Trustee may refuse to enforce the Indenture or the Debt Securities unless it receives reasonable indemnity or security. Subject to certain limitations, Holders of a majority in principal amount of the Outstanding Debt Securities may direct the Trustee in its exercise of any trust or power. The Trustee may withhold from Holders of Debt Securities notice of any continuing Default (except a Default in payment of principal or interest) if it determines that withholding notice is in their interest.

14. Trustee Dealings with the Company.

Subject to certain limitations imposed by the Trust Indenture Act, the Trustee under the Indenture, in its individual or any other capacity, may become the owner or pledgee of Debt Securities and may otherwise deal with and collect obligations owed to it by the Company or its affiliates and may otherwise deal with the Company or its affiliates with the same rights it would have if it were not Trustee.

15. Guarantees.

The Company has covenanted pursuant to the Indenture, subject to certain exceptions, to cause any Restricted Subsidiary that Incurs Indebtedness to execute and deliver to the Trustee a Guarantee Agreement pursuant to which such Restricted Subsidiary will guarantee this Debt Security on the same terms and conditions as those set forth in Exhibit B to the Indenture.

16. No Recourse Against Others.

A director, officer, employee or stockholder, as such, of the Company or the Trustee shall not have any liability for any obligations of the Company under the Debt Securities or the Indenture or for any claim based on, in respect of or by reason of such obligations or their creation. By accepting a Debt Security, each Holder of a Debt Security waives and releases all such liability. The waiver and release are part of the consideration for the issue of the Debt Securities.

17. Authentication.

This Debt Security shall not be valid until an authorized signatory of the Trustee (or an authenticating agent) manually signs the certificate of authentication on the other side of this Debt Security.

18. Abbreviations.

Customary abbreviations may be used in the name of a Holder of a Debt Security or an assignee, such as TEN COM (=tenants in common), TEN ENT (=tenants by the entireties), JT TEN (=joint tenants with rights of survivorship and not as tenants in common), CUST (=custodian), and U/G/M/A (=Uniform Gifts to Minors Act).

19. CUSIP Numbers.

Pursuant to a recommendation promulgated by the Committee on Uniform Security Identification Procedures, the Company has caused CUSIP numbers to be printed on the Debt Securities. No representation is made as to the accuracy of such numbers either as printed on the Debt Securities or as contained in any notice of redemption and reliance may be placed only on the other identification numbers placed thereon.

20. Governing Law.

EACH DEBT SECURITY AND EACH COUPON SHALL BE DEEMED TO BE NEW YORK CONTRACTS, AND FOR ALL PURPOSES SHALL BE CONSTRUED IN ACCORDANCE WITH THE LAWS OF SAID STATE (WITHOUT REFERENCE TO PRINCIPLES OF CONFLICT OF LAWS).

The Company will furnish to any Holder of a Debt Security upon written request and without charge to the Holder of a Debt Security a copy of the Indenture which has in it the text of this Debt Security in large type. Requests may be made to:

Methanex Corporation

▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇

▇▇▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇▇

▇▇▇▇▇▇▇▇▇, ▇.▇. ▇▇▇ ▇▇▇

ASSIGNMENT FORM

To assign this Debt Security, fill in the form below:

I or we assign and transfer this Debt Security to

(Print or type assignee’s name, address and zip code)

(Insert assignee’s soc. sec. or tax I.D. No.)

and irrevocably appoint agent to transfer this Debt Security on the books of the Company. The agent may substitute another to act for him.



Signature Guarantee:
		Participant in a recognized Signature Guarantee Medallion Program (or other signature guarantor acceptable to the Trustee)

Schedule

OPTION OF HOLDER TO ELECT PURCHASE

If you want to elect to have this Debt Security purchased by the Company pursuant to Section 2.20 of the Fifth Supplemental Indenture, check this box: ¨

If you want to elect to have only part of this Debt Security purchased by the Company pursuant to Section 2.20 of the Fifth Supplemental Indenture, state the amount you elect to have purchased:

Date:




Your signature:

(Sign exactly as your name appears on the face of this Debt security)



Tax Identification No.



Signature Guarantee:*

*	Participant in a recognized Signature Guarantee Medallion Program (or other signature guarantor acceptable to the Trustee)

[TO BE ATTACHED TO GLOBAL DEBT SECURITIES]

SCHEDULE OF INCREASES OR DECREASES IN GLOBAL DEBT SECURITY

The following increases or decreases in this Global Debt Security have been made:


Date of Increase or Decrease	Amount of decrease in Principal Amount of this Global Debt Security	Amount of increase in Principal Amount of this Global Debt Security	Principal Amount of this Global Debt Security following such decrease or increase	Signature of authorized officer of Trustee

Your signature:

(Sign exactly as your name appears on the other side of this Debt security)