QUANTUM FUEL SYSTEMS TECHNOLOGIES WORLDWIDE, INC. CONVERTIBLE NOTE PURCHASE AGREEMENT January 16, 2008

Exhibit 99.3

QUANTUM FUEL SYSTEMS TECHNOLOGIES WORLDWIDE, INC.

CONVERTIBLE NOTE

PURCHASE AGREEMENT

January 16, 2008

EXECUTION COPY

THIS CONVERTIBLE NOTE PURCHASE AGREEMENT (the “Agreement”) is made effective as of January 16, 2008, by and between Quantum Fuel Systems Technologies Worldwide, Inc., a Delaware corporation (the “Company”), and WB QT, LLC, a Delaware limited liability company (the “Investor”), with respect to the following recitals.

RECITALS

A. The Company desires to issue and sell and the Investor desires to purchase a convertible promissory note in substantially the form attached to this Agreement as Exhibit A (the “Note”), which shall be convertible on the terms stated therein into common stock, par value $.001 per share (the “Common Stock”), of the Company;

B. The Note replaces in part the Revolving Credit Note dated January 31, 2007 (as amended to date), plus certain outstanding unpaid interest (including PIK interest) under the Amended and Restated Convertible Subordinated Promissory Notes issued pursuant to the terms of the Convertible Senior Subordinated Note Purchase Agreement dated as of July 12, 2004 (as amended to date), plus certain additional funding provided by the Investor; and

C. As a further inducement for Investor to purchase the Note, the Company desires to provide a security interest in all assets of the Company as collateral to further secure the performance of the Company’s obligations under the Note, as set forth in that certain Security Agreement to be entered into between the Company and the Investor (the “Security Agreement”).

AGREEMENT

NOW, THEREFORE, in consideration of the respective representations, warranties, covenants and agreements contained herein, and for other valuable consideration, the receipt and adequacy of which is hereby acknowledged, the parties hereto agree as follows:

ARTICLE I

DEFINITIONS

Section 1.1 Specific Definitions. As used in this Agreement, the following terms shall have the meanings set forth or as referenced below:

“Action” shall have the meaning ascribed to such term in Section 4.10.

“Affiliate” of a specified person (natural or juridical) means a person that directly, or indirectly through one or more intermediaries, controls, or is controlled by, or is under common control with, that person, as such terms are used in and construed under Rule 405 under the Securities Act. With respect to the Investor, any investment fund or managed account that is managed on a discretionary basis by the same investment manager as the Investor will be deemed to be an Affiliate of the Investor.

“Agreement” means this Agreement and all Exhibits and Schedules hereto.

C-1

“Closing” shall have the meaning ascribed to such term in Section 3.1.

“Closing Date” shall have the meaning ascribed to such term in Section 3.1.

“Common Stock” means the Company’s common stock, par value $0.001 per share.

“Conversion Price” means the conversion price in effect on any given date, which initially shall be equal to $1.35, but which shall be subject to adjustment as described herein and in the Note.

“Common Stock Equivalents” means any securities of the Company or the Subsidiaries which would entitle the holder thereof to acquire at any time Common Stock, including, without limitation, any debt, preferred stock, rights, options, warrants or other instrument that is at any time convertible into or exercisable or exchangeable for, or otherwise entitles the holder thereof to receive, Common Stock.

“Control” shall mean ownership of more than 50% of the shares of stock entitled to vote for the election of directors in the case of a corporation, and more than 50% of the voting power in the case of a business entity other than a corporation.

“Conversion Shares” or “Shares” means the shares of Common Stock issued or issuable upon conversion of any of the Convertible Note.

“Convertible Note” or “Note” means the promissory note, in the form attached hereto as Exhibit A, to be issued by the Company to the Investor.

“Credit Agreement” means that certain Credit Agreement, dated as of January 31, 2007, as amended by a First Amendment to Credit Agreement dated as of September 13, 2007, a Second Amendment to Credit Agreement dated as of November 6, 2007, a Third Amendment to Credit Agreement dated as of January 16, 2008, and a Waiver and Agreement dated as of December 14, 2007, by and among the Investor, the Company and the Lenders thereunder.

“Disclosure Schedules” means the Disclosure Schedules of the Company delivered concurrently herewith.

“Environmental Laws or Regulations” means any federal, state or local statute, law, ordinance or regulation that relates to or deals with hazardous substances, human health or the environment, and all regulations promulgated by a regulatory body pursuant to any of the foregoing statutes, laws, regulations, or ordinances.

“Evaluation Date” shall have the meaning ascribed to such term in Section 4.18.

“Exchange Act” means the Securities Exchange Act of 1934, as amended to date, including all rules and regulations promulgated thereunder.

“Exempt Issuance” means (a) the vesting of shares of Common Stock or options to employees, officers, consultants or directors of the Company pursuant to the Company’s 2002 Stock Incentive Plan, as amended (provided that any such vesting shall not exceed 10% of the

Company’s outstanding shares and/or options, in the aggregate, in any twelve-month period), (b) the issuance of securities upon the exercise or exchange of or conversion of any securities issued pursuant to the Note and/or other securities exercisable or exchangeable for or convertible into shares of Common Stock issued and outstanding on the date of this Agreement, provided that such securities have not been amended since the date of this Agreement to increase the number of such securities or to decrease the exercise, exchange or conversion price of such securities, and (c) the issuance of securities issued pursuant to acquisitions or strategic transactions approved by a majority of the disinterested directors of the Company, provided any such issuance shall only be to a person which is, itself or through its subsidiaries, an operating company in a business synergistic with or complementary to the business of the Company and in which the Company receives benefits in addition to the investment of funds, but shall not include a transaction in which the Company is issuing securities primarily for the purpose of raising capital or to an entity whose primary business is investing in securities.

“Financial Statements” means the Company’s audited financial statements as of and for the year ended April 30, 2007 and any unaudited quarterly financial statements of the Company for the quarters ended July 31, 2007 and October 30, 2007.

“GAAP” shall have the meaning ascribed to such term in Section 4.8.

“Indemnifiable Losses” shall have the meaning ascribed to such term in Section 9.1.

“Intellectual Property” means (i) all proprietary rights, privileges and priorities provided under U.S., state and foreign law relating to U.S. and foreign patents and patent applications, trademarks, service marks and registrations thereof and applications therefor, copyrights and copyright registrations and applications, mask works and registrations thereof, know-how, and trade secrets; (ii) proprietary inventions, discoveries, ideas, technology, data, information, and processes; (iii) proprietary drawings, designs, licenses, computer programs and software, and technical information including but not limited to proprietary information embodied in material specifications, processing instructions, equipment specifications, product specifications, confidential data, electronic files, research notebooks, invention disclosures, research and development reports and the like related thereto; and (iv) all amendments, modifications, and improvements to any of the foregoing.

“Intellectual Property Rights” shall have the meaning ascribed to such term in Section 4.15.

“Issuable Maximum” shall mean that the number of Shares to be issued to the Investor pursuant to the exercise of its conversion rights under (i) the Note or (ii) Term Loan B (issued pursuant to the Credit Agreement) shall not exceed 19.99% of the Company’s issued and outstanding shares of Common Stock as of the date of the issuance of such Shares.

“Knowledge” means actual knowledge of a fact or the knowledge which such person could reasonably be expected to have based on reasonable inquiry. The knowledge of an entity shall include the knowledge of the individuals who are executive officers of such entity at the time in question.

“Legend Removal Date” shall have the meaning ascribed to such term in Section 6.8(c).

“Liens” means liens, mortgages, charges, security interests, claims, voting trusts, pledges, encumbrances, options, assessments, restrictions, or third-party or spousal interests of any nature.

“Material Adverse Effect” means any effect that may be materially adverse to (a) the business, operations, results of operations, prospects, assets (including intangible assets), liabilities or condition (financial or otherwise) of the Company and its Affiliates, taken as a whole, or (b) the ability of the Company to perform its obligations under this Agreement or any of the Transaction Documents or any other agreement or instrument to be entered into in connection with this Agreement.

“Material Permits” shall have the meaning ascribed to such term in Section 4.13.

“Note” shall have the meaning ascribed to such term in Section 2.1.

“Person” means an individual or corporation, partnership, trust, incorporated or unincorporated association, joint venture, limited liability company, joint stock company, government (or an agency or subdivision thereof) or other entity of any kind.

“Proceeding” means an action, claim, suit, investigation or proceeding (including, without limitation, an informal investigation or partial proceeding, such as a deposition), whether commenced or threatened.

“Product Liability” means any liability, claim or expense, including but not limited to attorneys’ fees and medical expenses, arising in whole or in part out of a breach of any express or implied product warranty by the Company, strict liability in tort, negligent manufacture of product, negligent provision of services, product recall, or any other allegation of liability arising from the design, testing, manufacture, packaging, labeling (including instructions for use), or sale of products.

“Prospectus” shall have the meaning ascribed to such term in Section 9.1.

“Purchase Price” shall have the meaning ascribed to such term in Section 2.1.

“Purchased Securities” means the Convertible Note and the Conversion Shares.

“Required Approvals” shall have the meaning ascribed to such term in Section 4.5.

“Required Minimum” means, as of any date, the maximum aggregate number of shares of Common Stock then issued or potentially issuable in the future pursuant to the Transaction Documents, including any Conversion Shares issuable upon exercise or conversion in full of the Note, ignoring any conversion or exercise limits set forth therein.

“Rule 144” means Rule 144 promulgated by the SEC pursuant to the Securities Act, as such Rule may be amended from time to time, or any similar rule or regulation hereafter adopted by the SEC having substantially the same effect as such Rule.

“Schedule of Exceptions” shall have the meaning ascribed to such term in Article 4.

“SEC” means the United States Securities and Exchange Commission or any other federal agency at the time administering the Securities Act.

“SEC Reports” shall have the meaning ascribed to such term in Section 4.8.

“Securities Act” means the Securities Act of 1933, as amended to date, including all rules and regulations promulgated thereunder.

“Security Agreement” means the security agreement to be entered into by and between the Company and the Investor within thirty (30) days after the Closing Date.

“Stockholder Approval” means such approval as may be required by the applicable rules and regulations of the Nasdaq Stock Market (or any successor) from the stockholders of the Company with respect to the transactions contemplated by the Transaction Documents, including the issuance of all of the Conversion Shares in excess of 19.99% of the issued and outstanding Common Stock as of the date of the issuance of such Conversion Shares.

“Short Sales” means all “short sales” as defined in Rule 200 of Regulation SHO under the Exchange Act (but shall not be deemed to include the location and/or reservation of borrowable shares of Common Stock).

“Subsidiary” means any subsidiary of the Company as set forth on Schedule 4.1 and shall, where applicable, include any subsidiary of the Company formed or acquired after the date hereof.

“Term Loan B” shall mean the $10,000,000 term loan to be advanced to the Company by the Investor pursuant to the Credit Agreement.

“Trading Day” means a day on which the Nasdaq Stock Market (or such other Trading Market on which the Company’s Common Stock is then traded) is open for trading.

“Trading Market” means the following markets or exchanges on which the Common Stock is listed or quoted for trading on the date in question: the American Stock Exchange, the Nasdaq Capital Market, the Nasdaq Global Market, the Nasdaq Global Select Market, the New York Stock Exchange or the OTC Bulletin Board.

“Transaction Documents” means the Note, the Note Purchase Agreement, the Security Agreement, the Third Amendment to Credit Agreement, Term Loan B and such other documents, instruments and agreements executed in connection with the consummation of the transactions contemplated hereby.

“VWAP” means, for any date, the price determined by the first of the following clauses that applies: (a) if the Common Stock is then listed or quoted on a Trading Market, the daily volume weighted average price of the Common Stock for such date (or the nearest preceding date) on the Trading Market on which the Common Stock is then listed or quoted for trading as reported by Bloomberg L.P. (based on a Trading Day from 9:30 a.m. (New York City time) to 4:02 p.m. (New York City time); (b) if the OTC Bulletin Board is not a Trading Market, the volume weighted average price of the Common Stock for such date (or the nearest preceding

date) on the OTC Bulletin Board; (c) if the Common Stock is not then quoted for trading on the OTC Bulletin Board and if prices for the Common Stock are then reported in the “Pink Sheets” published by Pink Sheets, LLC (or a similar organization or agency succeeding to its functions of reporting prices), the most recent bid price per share of the Common Stock so reported; or (d) in all other cases, the fair market value of a share of Common Stock as determined by an independent appraiser selected in good faith by the Holder and reasonably acceptable to the Company.

Section 1.2 Definitional Provisions.

(a) The words “hereof,” “herein,” and “hereunder” and words of similar import, when used in this Agreement, shall refer to this Agreement as a whole and not to any particular provisions of this Agreement.

(b) The terms defined in the singular shall have a comparable meaning when used in the plural, and vice versa. Terms referring to a masculine gender shall be deemed to refer to the feminine or neuter genders, as applicable.

(c) References to an “Exhibit” or to a “Schedule” are, unless otherwise specified, to one of the Exhibits or Schedules attached to or referenced in this Agreement, and references to an “Article” or a “Section” are, unless otherwise specified, to one of the Articles or Sections of this Agreement.

(d) The term “person” includes any individual, partnership, joint venture, corporation, limited liability company, trust, entity, unincorporated organization or government or any department or agency thereof.

(e) The term “dollars” or “$” shall refer to the currency of the United States of America.

(f) All references to time shall refer to Minneapolis, Minnesota time.

ARTICLE II

PURCHASE AND SALE OF CONVERTIBLE NOTE

Section 2.1 Purchase and Sale of Note. Subject to the terms and conditions of this Agreement, the Investor agrees to purchase at the Closing, and the Company agrees to sell and issue to the Investor at the Closing, a Note, in substantially the form attached hereto as Exhibit A, in the original principal amount of $16,195,676.30 (the “Note”), at a purchase price equal to 100% of the principal amount thereof (the “Purchase Price”). The Note will be secured pursuant to the Security Agreement.

Section 2.2 Note Conversion. The Investor may, at its option, purchase shares of the Company’s Common Stock by converting amounts outstanding under the Note or, if applicable, at the applicable Conversion Price as provided therein (in each case, a “Note Conversion Closing”). At each Note Conversion Closing, the Company shall issue certificates representing any shares purchased under this Section 2.2 in a form acceptable to the Investor and Investor’s counsel, and the Investor shall pay the Conversion Price described in the Note (subject to adjustment as provided therein) for such shares by surrendering the applicable Note(s) to the Company.

Section 2.3 Use of Proceeds. The Company shall use the cash proceeds of the sale of the Note for the Company’s working capital needs.

ARTICLE III

THE CLOSING

Section 3.1 Closing. The purchase and sale of the Note shall take place at the offices of the Company, at 10:00 a.m., on January 16, 2008, or such other time as may be designated by the Company in writing (the “Closing”). At the Closing, the Company shall deliver to the Investor the Note that the Investor is purchasing against delivery to the Company by the Investor of the consideration therefor.

Section 3.2 Closing Deliveries.

(a) Company Deliveries. On the Closing Date, the Company shall deliver or cause to be delivered to the Investor the following:

(i) this Agreement duly executed by the Company; and

(ii) a Note registered in the name of the Investor in the principal amount of $16,195,676.30.

(b) Investor Deliveries. On the Closing Date, the Investor shall deliver or cause to be delivered to the Company the following:

(i) this Agreement duly executed by the Investor; and

(ii) the payment of the Purchase Price by the Investor, in the manner specified in Section 3.1 above.

ARTICLE IV

REPRESENTATIONS AND WARRANTIES OF THE COMPANY

Attached hereto as Schedule A is the Schedule of Exceptions containing sections numbered to correspond to the sections of this Article 4 (the “Schedule of Exceptions”). Except as specifically set forth in the corresponding section of such Schedule of Exceptions (or in any other section of the Schedule of Exceptions so long as the applicability of such disclosure to the particular representation and warranty which such disclosure is intended to modify is reasonably apparent), the Company hereby represents and warrants to the Investor as follows as of the date hereof and as of the Closing Date:

Section 4.1 Subsidiaries. All of the direct and indirect subsidiaries (the “Subsidiaries”) of the Company are set forth on Schedule 4.1. The Company owns, directly or indirectly, all of the capital stock or other equity interests of each Subsidiary free and clear of any Liens, and all of the issued and outstanding shares of capital stock of each Subsidiary are validly issued and are fully paid, non-assessable and free of preemptive and similar rights to subscribe for or purchase securities.

Section 4.2 Organization and Qualification. The Company and each of the Subsidiaries is an entity duly incorporated or otherwise organized, validly existing and in good standing under the laws of the jurisdiction of its incorporation or organization (as applicable), with the requisite power and authority to own and use its properties and assets and to carry on its business as currently conducted. Neither the Company nor any Subsidiary is in violation or default of any of the provisions of its respective certificate or articles of incorporation, bylaws or other organizational or charter documents. Each of the Company and the Subsidiaries is duly qualified to conduct business and is in good standing as a foreign corporation or other entity in each jurisdiction in which the nature of the business conducted or property owned by it makes such qualification necessary, except where the failure to be so qualified or in good standing, as the case may be, could not have or reasonably be expected to result in a Material Adverse Effect, and no Proceeding has been instituted in any such jurisdiction revoking, limiting or curtailing or seeking to revoke, limit or curtail such power and authority or qualification.

Section 4.3 Authorization; Enforcement. The Company has the requisite corporate power and authority to enter into and to consummate the transactions contemplated by each of the Transaction Documents and otherwise to carry out its obligations hereunder and thereunder. The execution and delivery of each of the Transaction Documents by the Company and the consummation by it of the transactions contemplated hereby and thereby have been duly authorized by all necessary action on the part of the Company and no further action is required by the Company, its board of directors or its stockholders in connection therewith other than in connection with the Required Approvals (as defined in Section 4.5 below). Each Transaction Document has been (or upon delivery will have been) duly executed by the Company and, when delivered in accordance with the terms hereof and thereof, will constitute the valid and binding obligation of the Company enforceable against the Company in accordance with its terms except (i) as limited by general equitable principles and applicable bankruptcy, insolvency, reorganization, moratorium and other laws of general application affecting enforcement of creditors’ rights generally, (ii) as limited by laws relating to the availability of specific performance, injunctive relief or other equitable remedies and (iii) insofar as indemnification and contribution provisions may be limited by applicable law.

Section 4.4 No Conflicts. The execution, delivery and performance of the Transaction Documents by the Company, the issuance and sale of the Purchased Securities and the consummation by the Company of the other transactions contemplated hereby and thereby do not and will not (i) conflict with or violate any provision of the Company’s or any Subsidiary’s certificate or articles of incorporation, bylaws or other organizational or charter documents, or (ii) conflict with, or constitute a default (or an event that with notice or lapse of time or both would become a default) under, result in the creation of any Lien upon any of the properties or assets of the Company or any Subsidiary, or give to others any rights of termination, amendment, acceleration or cancellation (with or without notice, lapse of time or both) of, any agreement, credit facility, debt or other instrument (evidencing a Company or Subsidiary debt or otherwise) or other understanding to which the Company or any Subsidiary is a party or by which any property or asset of the Company or any Subsidiary is bound or affected, or (iii) subject to the Required Approvals (as defined in Section 4.5 below), conflict with or result in a violation of any

law, rule, regulation, order, judgment, injunction, decree or other restriction of any court or governmental authority to which the Company or any Subsidiary is subject (including federal and state securities laws and regulations), or by which any property or asset of the Company or a Subsidiary is bound or affected; except in the case of each of clauses (ii) and (iii), such as could not have or reasonably be expected to result in a Material Adverse Effect.

Section 4.5 Filings, Consents and Approvals. The Company is not required to obtain any consent, waiver, authorization or order of, give any notice to, or make any filing or registration with, any court or other federal, state, local or other governmental authority or other Person in connection with the execution, delivery and performance by the Company of the Transaction Documents, other than (i) approval of the Company’s Board of Directors, (ii) filings required pursuant to Sections 6.11 or 6.12 of this Agreement, (iii) application(s) to each applicable Trading Market for the listing of the Securities for trading thereon in the time and manner required thereby, and (iv) the filing of Form D with the SEC and such filings as are required to be made under applicable state securities laws (collectively, the “Required Approvals”).

Section 4.6 Issuance of the Securities. The Purchased Securities are duly authorized and, when issued and paid for in accordance with the applicable Transaction Documents, will be duly and validly issued, fully paid and nonassessable, free and clear of all Liens imposed by the Company other than restrictions on transfer provided for in the Transaction Documents. The Conversion Shares, when issued in accordance with the terms of the Transaction Documents, will be validly issued, fully paid and nonassessable, free and clear of all Liens imposed by the Company other than restrictions on transfer provided for in the Transaction Documents. The Company has reserved, or will promptly take any action necessary to reserve, from its duly authorized capital stock the maximum number of shares of Common Stock issuable pursuant to this Agreement and the other Transaction Documents.

Section 4.7 Capitalization. The capitalization of the Company as described in the Company’s most recent periodic report under the Exchange Act is accurate and complete. The Company has not issued any capital stock since its most recently filed periodic report under the Exchange Act, other than the exercise of employee stock options under the Company’s stock option plans, the issuance of shares of Common Stock to employees pursuant to the Company’s employee stock purchase plans and pursuant to the conversion or exercise of Common Stock Equivalents outstanding as of the date of the most recently filed periodic report under the Exchange Act. No Person has any right of first refusal, preemptive right, right of participation, or any similar right to participate in the transactions contemplated by the Transaction Documents. All of the outstanding shares of capital stock of the Company are validly issued, fully paid and nonassessable, have been issued in compliance with all federal and state securities laws, and none of such outstanding shares was issued in violation of any preemptive rights or similar rights to subscribe for or purchase securities. Except as otherwise provided in Section 6.12, no further approval or authorization of any stockholder or others (other than the Company’s Board of Directors) is required for the issuance and sale of the Purchased Securities. There are no stockholder agreements, voting agreements or other similar agreements with respect to the Company’s capital stock to which the Company is a party (other than those contemplated in connection with the Transaction Documents) or, to the knowledge of the Company, between or among any of the Company’s stockholders.

Section 4.8 SEC Reports; Financial Statements. The Company has filed all reports, schedules, forms, statements and other documents required to be filed by the Company under the Securities Act and the Exchange Act, including pursuant to Section 13(a) or 15(d) thereof, for the two years preceding the date hereof (or such shorter period as the Company was required by law or regulation to file such material) (the foregoing materials, including the exhibits thereto and documents incorporated by reference therein, being collectively referred to herein as the “SEC Reports”) on a timely basis or has received a valid extension of such time of filing and has filed any such SEC Reports prior to the expiration of any such extension. As of their respective dates, the SEC Reports complied in all material respects with the requirements of the Securities Act and the Exchange Act, as applicable, and none of the SEC Reports, when filed, contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. The financial statements of the Company included in the SEC Reports, as such may have been amended from time to time, comply in all material respects with applicable accounting requirements and the rules and regulations of the SEC with respect thereto as in effect at the time of filing. Such financial statements have been prepared in accordance with United States generally accepted accounting principles applied on a consistent basis during the periods involved (“GAAP”), except as may be otherwise specified in such financial statements or the notes thereto and except that unaudited financial statements may not contain all footnotes required by GAAP, and fairly present in all material respects the financial position of the Company and its consolidated subsidiaries as of and for the dates thereof and the results of operations and cash flows for the periods then ended, subject, in the case of unaudited statements, to normal, immaterial, year-end audit adjustments.

Section 4.9 Material Changes; Undisclosed Events, Liabilities or Developments. Since the date of the latest audited financial statements included within the SEC Reports, except as specifically disclosed in a subsequent SEC Report filed prior to the date hereof, (i) there has been no event, occurrence or development that has had or that could reasonably be expected to result in a Material Adverse Effect, (ii) the Company has not incurred any liabilities (contingent or otherwise) other than (A) trade payables and accrued expenses incurred in the ordinary course of business consistent with past practice and (B) liabilities not required to be reflected in the Company’s financial statements pursuant to GAAP or disclosed in filings made with the SEC, (iii) the Company has not altered its method of accounting, (iv) the Company has not declared or made any dividend or distribution of cash or other property to its stockholders or purchased, redeemed or made any agreements to purchase or redeem any shares of its capital stock and (v) the Company has not issued any equity securities to any officer, director or Affiliate, except pursuant to existing Company stock option plans. The Company does not have pending before the SEC any request for confidential treatment of information. Except for the issuance of the Purchased Securities contemplated by this Agreement or as set forth on Schedule 4.9, no event, liability or development has occurred or exists with respect to the Company or its Subsidiaries or their respective business, properties, operations or financial condition, that would be required to be disclosed by the Company under applicable securities laws at the time this representation is made or deemed made that has not been publicly disclosed at least 1 Trading Day prior to the date that this representation is made.

Section 4.10 Litigation. There is no action, suit, inquiry, notice of violation, proceeding or investigation pending or, to the knowledge of the Company, threatened against or affecting the

Company, any Subsidiary or any of their respective properties before or by any court, arbitrator, governmental or administrative agency or regulatory authority (federal, state, county, local or foreign) (collectively, an “Action”) which (i) adversely affects or challenges the legality, validity or enforceability of any of the Transaction Documents or the Purchased Securities or (ii) could, if there were an unfavorable decision, have or reasonably be expected to result in a Material Adverse Effect. Neither the Company nor any Subsidiary, nor any director or officer thereof, is or has been the subject of any Action which has resulted in a final judgment involving a claim of violation of or liability under federal or state securities laws or a claim of breach of fiduciary duty. There has not been, and to the knowledge of the Company, there is not pending or contemplated, any investigation by the SEC involving the Company or any current or former director or officer of the Company. The SEC has not issued any stop order or other order suspending the effectiveness of any registration statement filed by the Company or any Subsidiary under the Exchange Act or the Securities Act.

Section 4.11 Labor Relations. No material labor dispute exists or, to the knowledge of the Company, is imminent with respect to any of the employees of the Company which could reasonably be expected to result in a Material Adverse Effect. None of the Company’s or its Subsidiaries’ employees is a member of a union that relates to such employee’s relationship with the Company or such Subsidiary, and neither the Company nor any of its Subsidiaries is a party to a collective bargaining agreement. No executive officer, to the knowledge of the Company, is, or is now expected to be, in violation of any material term of any employment contract, confidentiality, disclosure or proprietary information agreement or non-competition agreement, or any other contract or agreement or any restrictive covenant in favor of any third party, and the continued employment of each such executive officer does not subject the Company or any of its Subsidiaries to any liability with respect to any of the foregoing matters. The Company and its Subsidiaries are in compliance with all U.S. federal, state, local and foreign laws and regulations relating to employment and employment practices, terms and conditions of employment and wages and hours, except where the failure to be in compliance could not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

Section 4.12 Compliance. Except as set forth in Schedule 4.12, neither the Company nor any Subsidiary (i) is in violation of any order of any court, arbitrator or governmental body or (ii) is or has been in violation of any statute, rule or regulation of any governmental authority, including without limitation all foreign, federal, state and local laws applicable to its business and all such laws that affect the environment, except in each case as could not have or reasonably be expected to result in a Material Adverse Effect.

Section 4.13 Regulatory Permits. The Company and the Subsidiaries possess all certificates, authorizations and permits issued by the appropriate federal, state, local or foreign regulatory authorities necessary to conduct their respective businesses as described in the SEC Reports, except where the failure to possess such permits could not reasonably be expected to result in a Material Adverse Effect (“Material Permits”), and neither the Company nor any Subsidiary has received any notice of proceedings relating to the revocation or modification of any Material Permit.

Section 4.14 Title to Assets. The Company and the Subsidiaries have good and marketable title in fee simple to all real property owned by them and good and marketable title in

all personal property owned by them that is material to the business of the Company and the Subsidiaries, in each case free and clear of all Liens, except for Permitted Liens (as defined in the Credit Agreement) and those that do not materially affect the value of such property and do not materially interfere with the use made and proposed to be made of such property by the Company and the Subsidiaries and Liens for the payment of federal, state or other taxes, the payment of which is neither delinquent nor subject to penalties. Any real property and facilities held under lease by the Company and the Subsidiaries are held by them under valid, subsisting and enforceable leases with which the Company and the Subsidiaries are in compliance in all material respects.

Section 4.15 Patents and Trademarks. The Company and the Subsidiaries have, or have rights to use, all patents, patent applications, trademarks, trademark applications, service marks, trade names, trade secrets, inventions, copyrights, licenses and other intellectual property rights and similar rights necessary or material for use in connection with their respective businesses as described in the SEC Reports and which the failure to so have could have a Material Adverse Effect (collectively, the “Intellectual Property Rights”). Neither the Company nor any Subsidiary has received a notice (written or otherwise) that any of the Intellectual Property Rights used by the Company or any Subsidiary violates or infringes upon the rights of any Person. To the knowledge of the Company, all such Intellectual Property Rights are enforceable and there is no existing infringement by another Person of any of the Intellectual Property Rights. The Company and its Subsidiaries have taken reasonable security measures to protect the secrecy, confidentiality and value of all of their intellectual properties, except where failure to do so could not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

Section 4.16 Insurance. The Company and the Subsidiaries are insured by insurers of recognized financial responsibility against such losses and risks and in such amounts as are prudent and customary in the businesses in which the Company and the Subsidiaries are engaged, including, but not limited to, directors and officers insurance coverage. Neither the Company nor any Subsidiary has any reason to believe that it will not be able to renew its existing insurance coverage as and when such coverage expires or to obtain similar coverage from similar insurers as may be necessary to continue its business without a significant increase in cost.

Section 4.17 Transactions With Affiliates and Employees. Except as set forth in the SEC Reports, none of the officers or directors of the Company and, to the knowledge of the Company, none of the employees of the Company is presently a party to any transaction with the Company or any Subsidiary (other than for services as employees, officers and directors), including any contract, agreement or other arrangement providing for the furnishing of services to or by, providing for rental of real or personal property to or from, or otherwise requiring payments to or from any officer, director or such employee or, to the knowledge of the Company, any entity in which any officer, director, or any such employee has a substantial interest or is an officer, director, trustee or partner, in each case in excess of $100,000 other than for (i) payment of salary or consulting fees for services rendered, (ii) reimbursement for expenses incurred on behalf of the Company and (iii) other employee benefits, including stock option agreements under any stock option plan of the Company.

Section 4.18 ▇▇▇▇▇▇▇▇-▇▇▇▇▇; Internal Accounting Controls. The Company is in material compliance with all provisions of the ▇▇▇▇▇▇▇▇-▇▇▇▇▇ Act of 2002 which are applicable to it as of the Closing Date. The Company and the Subsidiaries maintain a system of internal accounting controls sufficient to provide reasonable assurance that (i) transactions are executed in accordance with management’s general or specific authorizations, (ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with GAAP and to maintain asset accountability, (iii) access to assets is permitted only in accordance with management’s general or specific authorization, and (iv) the recorded accountability for assets is compared with the existing assets at reasonable intervals and appropriate action is taken with respect to any differences. The Company has established disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the Company and designed such disclosure controls and procedures to ensure that information required to be disclosed by the Company in the reports it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms. The Company’s certifying officers have evaluated the effectiveness of the Company’s disclosure controls and procedures as of the end of the period covered by the Company’s most recently filed periodic report under the Exchange Act (such date, the “Evaluation Date”). The Company presented in its most recently filed periodic report under the Exchange Act the conclusions of the certifying officers about the effectiveness of the disclosure controls and procedures based on their evaluations as of the Evaluation Date. Since the Evaluation Date, there have been no changes in the Company’s internal control over financial reporting (as such term is defined in the Exchange Act) that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

Section 4.19 Certain Fees. No brokerage or finder’s fees or commissions are or will be payable by the Company to any broker, financial advisor or consultant, finder, placement agent, investment banker, bank or other Person with respect to the transactions contemplated by the Transaction Documents, except for the fees and commissions of ▇▇▇▇▇▇▇▇, Curhan & Ford. The Investor shall have no obligation with respect to any fees or with respect to any claims made by or on behalf of other Persons for fees of a type contemplated in this Section that may be due in connection with the transactions contemplated by the Transaction Documents.

Section 4.20 Private Placement. Assuming the accuracy of the Investor representations and warranties set forth in Article 5, no registration under the Securities Act is required for the offer and sale of the Purchased Securities by the Company to the Investor as contemplated hereby. The issuance and sale of the Purchased Securities hereunder does not contravene the rules and regulations of the Trading Market.

Section 4.21 Investment Company. The Company is not, and is not an Affiliate of, and immediately after receipt of payment for the Securities, will not be or be an Affiliate of, an “investment company” within the meaning of the Investment Company Act of 1940, as amended. The Company shall conduct its business in a manner so that it will not become subject to the Investment Company Act of 1940, as amended.

Section 4.22 Registration Rights. Other than pursuant to this Agreement or as set forth in Schedule 4.22, no Person has any right to cause the Company to effect the registration under the Securities Act of any securities of the Company, other than registration statements which have already been filed and declared effective.

Section 4.23 Listing and Maintenance Requirements. The Company’s Common Stock is registered pursuant to Section 12(b) or 12(g) of the Exchange Act, and the Company has taken no action designed to, or which to its knowledge is likely to have the effect of, terminating the registration of the Common Stock under the Exchange Act, nor has the Company received any notification that the SEC is contemplating terminating such registration. Except as set forth in Schedule 4.23, the Company has not, in the 12 months preceding the date hereof, received any notice from any Trading Market on which the Common Stock is or has been listed or quoted to the effect that the Company is not in compliance with the listing or maintenance requirements of such Trading Market.

Section 4.24 [Reserved].

Section 4.25 Disclosure. Except with respect to the material terms and conditions of the transactions contemplated by the Transaction Documents, the Company confirms that neither it nor any other Person acting on its behalf has provided the Investor or its agents or counsel with any information that it believes constitutes or might constitute material, non-public information. The Company understands and confirms that the Investor will rely on the foregoing representation in effecting transactions in securities of the Company. All disclosure furnished by or on behalf of the Company to the Investor regarding the Company, its business and the transactions contemplated hereby, including the SEC Reports and the Disclosure Schedules to this Agreement, is true and correct and does not contain any untrue statement of a material fact or omit to state any material fact necessary in order to make the statements made therein, in light of the circumstances under which they were made, not misleading. The press releases and the SEC Reports filed or disseminated by the Company during the twelve months preceding the date of this Agreement taken as a whole do not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances under which they were made and when made, not misleading. The Company acknowledges and agrees that the Investor is not making and has not made any representations or warranties with respect to the transactions contemplated hereby other than those specifically set forth in Article 5 below.

Section 4.26 [Reserved].

Section 4.27 Solvency. The Company has no knowledge of any facts or circumstances which lead it to believe that it will file for reorganization or liquidation under the bankruptcy or reorganization laws of any jurisdiction within one year from the Closing Date. All material secured and unsecured indebtedness of the Company is set forth in the Company’s SEC Reports.

Section 4.28 Tax Status. Except for matters that would not, individually or in the aggregate, have or reasonably be expected to result in a Material Adverse Effect, the Company and each Subsidiary has filed all necessary federal, state and foreign income and franchise tax returns and has paid or accrued all taxes shown as due thereon, and the Company has no knowledge of a tax deficiency which has been asserted or threatened against the Company or any Subsidiary.

Section 4.29 No General Solicitation. Neither the Company nor any person acting on behalf of the Company has offered or sold any of the Purchased Securities by any form of general solicitation or general advertising. The Company has offered the Securities for sale only to the Investor and, to the extent applicable, other “accredited investors” within the meaning of Rule 501 under the Securities Act.

Section 4.30 Foreign Corrupt Practices. Neither the Company, nor to the knowledge of the Company, any agent or other person acting on behalf of the Company, has (i) directly or indirectly, used any funds for unlawful contributions, gifts, entertainment or other unlawful expenses related to foreign or domestic political activity, (ii) made any unlawful payment to foreign or domestic government officials or employees or to any foreign or domestic political parties or campaigns from corporate funds, (iii) failed to disclose fully any contribution made by the Company (or made by any person acting on its behalf of which the Company is aware) which is in violation of law, or (iv) violated in any material respect any provision of the Foreign Corrupt Practices Act of 1977, as amended.

Section 4.31 No Disagreements with Accountants and Lawyers. There are no disagreements of any kind presently existing, or reasonably anticipated by the Company to arise, between the Company and the accountants and lawyers formerly or presently employed by the Company which could affect the Company’s ability to perform any of its obligations under any of the Transaction Documents, and the Company is current with respect to any fees owed to its accountants and lawyers.

Section 4.32 Acknowledgment Regarding Investor’s Purchase of Securities. The Company acknowledges and agrees that the Investor is acting solely in the capacity of an arm’s-length purchaser with respect to the Transaction Documents and the transactions contemplated thereby. The Company further acknowledges that the Investor is not acting as a financial advisor or fiduciary of the Company (or in any similar capacity) with respect to the Transaction Documents and the transactions contemplated thereby and any advice given by the Investor or any of its representatives or agents in connection with the Transaction Documents and the transactions contemplated thereby is merely incidental to the Investor’s purchase of the Purchased Securities. The Company further represents to the Investor that the Company’s decision to enter into this Agreement and the other Transaction Documents has been based solely on the independent evaluation of the transactions contemplated hereby by the Company and its representatives.

Section 4.33 Regulation M Compliance. The Company has not, and to its knowledge no one acting on its behalf has, (i) taken, directly or indirectly, any action designed to cause or to result in the stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of any of the Purchased Securities, (ii) sold, bid for, purchased, or, paid any compensation for soliciting purchases of, any of the Purchased Securities, or (iii) paid or agreed to pay to any Person any compensation for soliciting another to purchase any other securities of the Company, other than, in the case of clauses (ii) and (iii), compensation paid to the Company’s placement agent in connection with the placement of the Purchased Securities.

Section 4.34 Outstanding Borrowing. The Company’s SEC Reports set forth all material indebtedness of the Company as of the date hereof, the liens that relate to such indebtedness and

that encumber the Company’s assets and the name of each lender thereof. No holder of indebtedness of the Company is entitled to any voting rights in any matters voted upon by the holders of the Common Stock.

ARTICLE V

REPRESENTATIONS AND WARRANTIES OF THE INVESTOR

The Investor represents and warrants to the Company for itself as follows:

Section 5.1 Authorization. The Investor has full power and authority to enter into and perform under this Agreement in accordance with its terms. This Agreement has been duly authorized by all necessary action on the part of the Investor, has been duly executed and delivered by each the Investor, and is the valid and binding agreement of each the Investor and is enforceable against each the Investor in accordance with its terms, except as enforceability may be limited by bankruptcy, insolvency, moratorium, reorganization or other similar laws affecting the enforcement of creditors’ rights generally and to judicial limitations on the remedy of specific enforcement and other equitable remedies.

Section 5.2 Purchase Entirely for Own Account. This Agreement is made with the Investor in reliance upon the Investor’s representation to the Company, which by the Investor’s execution of this Agreement the Investor hereby confirms, that the Purchased Securities will be acquired for investment for the Investor’s own account, not as a nominee or agent, and not with a view to the resale or distribution of any part thereof, and that the Investor has no present intention of selling, granting any participation in, or otherwise distributing the same. By executing this Agreement, the Investor further represents that the Investor does not have any contract, undertaking, agreement or arrangement with any third-party to sell, transfer or grant participations to such third-party or to any third-person, with respect to any of the Purchased Securities.

Section 5.3 Reliance Upon Investor’s Representations; Restrictions on Resale. The Investor understands that neither the Note nor the Conversion Shares have been registered under the Securities Act or any state securities laws by reason of their contemplated issuance in transactions exempt from the registration requirements of the Securities Act pursuant to Section 4(2) thereof or Rule 505 or 506 promulgated under the Securities Act and applicable state securities laws, and that the reliance of the Company and others upon these exemptions is predicated in part upon this representation by the Investor. The Investor further understands that the Note and the Conversion Shares may not be transferred or resold without (i) registration under the Securities Act and any applicable state securities laws, or (ii) an exemption from the requirements of the Securities Act and applicable state securities laws. The Investor also understands that any Conversion Shares will be issued without prior registration thereof under the Securities Act or applicable state securities laws in reliance upon Section 4(2) of the Securities Act and transactional exemptions from registration under applicable state securities laws based upon appropriate representations of the Investor. As such, the Conversion Shares will be subject to transfer restrictions similar to restrictions applicable to the Convertible Note. The Investor understands (i) that an exemption from such registration is not presently available pursuant to Rule 144 promulgated under the Securities Act by the SEC and (ii) that in any event the Investor may not sell any securities acquired hereunder pursuant to Rule 144 prior to the

expiration of a six-month period (or such shorter period as the SEC may hereafter adopt) after the Investor has acquired such securities. The Investor understands that any sales pursuant to Rule 144 can be made only in full compliance with the provisions of Rule 144.

Section 5.4 Receipt of Information. The Investor represents that the Company has provided the Investor at a reasonable time prior to the execution of this Agreement sufficient opportunity to ask questions and receive answers from the Company’s management concerning the Company’s business, management and financial affairs and the terms and conditions of the offering of the Purchased Securities and the Conversion Shares and to obtain any additional information (which the Company possesses or can acquire without unreasonable effort or expense) as may be necessary to verify the accuracy of information furnished to the Investor. The Investor has reviewed the representations concerning the Company contained in this Agreement. The foregoing, however, does not limit or modify the representations and warranties of the Company in this Agreement or the right of the Investor to rely thereon.

Section 5.5 Investment Experience. The Investor represents that it is experienced in evaluating and investing in securities of companies in the development stage and acknowledges that it is able to fend for itself, can bear the economic risk of its investment, and has such knowledge and experience in financial or business matters that it is capable of evaluating the merits and risks of the investment in the Note and the Conversion Shares. If other than an individual, Investor also represents it has not been organized for the purpose of acquiring the Note and the Conversion Shares.

Section 5.6 Accredited Investor. The Investor is an “accredited investor” within the meaning of SEC Rule 501 of Regulation D promulgated under the Act, as presently in effect.

Section 5.7 Legends. To the extent applicable, each certificate or other document evidencing any of the Purchased Securities shall be endorsed with the legends set forth below, and the Investor covenants that, except to the extent such restrictions are waived by the Company, the Investor shall not transfer the shares represented by any such certificate without complying with the restrictions on transfer described in the legends endorsed on such certificate:

“THE SHARES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE SOLD, TRANSFERRED, ASSIGNED, PLEDGED, OR HYPOTHECATED ABSENT AN EFFECTIVE REGISTRATION THEREOF UNDER SUCH ACT OR COMPLIANCE WITH RULE 144 PROMULGATED UNDER SUCH ACT, OR UNLESS THE COMPANY HAS RECEIVED AN OPINION OF COUNSEL, SATISFACTORY TO THE COMPANY AND ITS COUNSEL, THAT SUCH REGISTRATION IS NOT REQUIRED.”

The Company shall make a notation regarding the restrictions on transfer of the Conversion Shares or other Purchased Securities in its books and the Conversion Shares and other Purchased Securities shall be transferred on the books of the Company only if transferred or sold pursuant

to an effective registration statement under the Securities Act covering the securities to be transferred or an opinion of counsel reasonably satisfactory to the Company that such registration is not required; provided, however, that (i) the Company will not require opinions of counsel for transactions made pursuant to Rule 144 except in unusual circumstances and (ii) the Company will not require opinions of counsel for transfers to affiliated entities managed by the same manager or managing partner or management company, or managed by an entity controlling, controlled by or under common control with such manager, managing partner or management company so long as the transferor certifies in writing to the Company that the transferor is not receiving any consideration in connection with the transfer and so long as the transferee will be subject to the terms of these restrictions to the same extent as if such transferee were an original Investor hereunder.

ARTICLE VI

COVENANTS

The Company covenants that for so long as the Note remains outstanding:

Section 6.1 Transactions with Affiliates. Except as specifically disclosed on Schedule 6.1 attached hereto, the Company shall not use any proceeds of Purchased Securities to make distributions or loans to any stockholders of the Company or to repay existing indebtedness for borrowed money obligations.

Section 6.2 Conditions to Closing. The Company shall use best efforts to cause the conditions set forth in Article 8 to be satisfied with respect to the Closing as soon as practicable.

Section 6.3 Reserve for Shares. The Company shall at all times reserve and keep available such number of its duly authorized but unissued shares of Common Stock as is necessary to comply with the terms of this Agreement and the Convertible Note and Conversion Shares. The Company shall at all times reserve and keep available out of its duly authorized but unissued shares of Common Stock such number of its duly authorized shares of Common Stock as is necessary to comply with the terms of this Agreement, its certificate of incorporation and the Conversion Shares. If at any time the number of shares of authorized but unissued Common Stock are not sufficient to comply with the terms of this Agreement, the Convertible Note, and the Conversion Shares, the Company will promptly take such corporate action as may be necessary to increase its authorized but unissued shares of Common Stock to such number of shares of Common Stock as are sufficient for such purpose. The Company will obtain any authorization, consent, approval or other action by or make any filing with any court or administrative body that may be required under applicable securities laws in connection with the issuance of any shares issued by it in order to comply with the terms of this Agreement, the Convertible Note and the Conversion Shares.

Section 6.4 Compliance with Law. The Company will conduct its business in compliance with all applicable laws, rules and regulations of the jurisdictions in which it is conducting business, including, without limitation, all applicable local, state and federal environmental laws and regulations, the failure to comply with which would have a Material Adverse Effect.

Section 6.5 Use of Proceeds. The Company shall use the cash proceeds of the Purchased Securities for the Company’s working capital needs and shall not use such proceeds for the satisfaction of any portion of the Company’s debt (other than payment of trade payables in the ordinary course of the Company’s business and prior practices), or to redeem any Common Stock or Common Stock Equivalents or to settle any outstanding litigation.

Section 6.6 Certain Actions Requiring Investor Approval. The Company shall not, without the written consent of the Investor, other than in the ordinary course of business, issue any debt securities that are senior or pari passu in right of payment to or with the Convertible Note (except for any debt securities that are outstanding as of the date hereof).

Section 6.7 Dividends. Neither the Company nor any of its Subsidiaries shall pay dividends to its respective stockholders unless such dividend on the next Interest Payment Date under the Note on an as-if converted basis.

Section 6.8 Transfer Restrictions.

(a) The Conversion Shares may only be disposed of in compliance with state and federal securities laws. In connection with any transfer of Conversion Shares other than pursuant to an effective registration statement or Rule 144, to the Company or to an Affiliate of the Investor or in connection with a pledge as contemplated in Section 6.8(b), the Company may require the transferor thereof to provide to the Company an opinion of counsel selected by the transferor and reasonably acceptable to the Company, the form and substance of which opinion shall be reasonably satisfactory to the Company, to the effect that such transfer does not require registration of such transferred Conversion Shares under the Securities Act. As a condition of transfer of Conversion Shares other than pursuant to an effective registration statement or Rule 144, any such transferee shall agree in writing to be bound by the terms of this Agreement and shall have the rights of an Investor under this Agreement.

(b) The Investor agrees to the imprinting, so long as is required by this Section 6.8, of a legend on any of the Conversion Shares in the following form:

[NEITHER] THIS SECURITY [NOR THE SECURITIES INTO WHICH THIS SECURITY IS [EXERCISABLE] [CONVERTIBLE]] HAS [NOT] BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS AS EVIDENCED BY A LEGAL OPINION OF COUNSEL TO THE TRANSFEROR TO SUCH EFFECT, THE SUBSTANCE OF WHICH SHALL BE REASONABLY ACCEPTABLE TO THE COMPANY. THIS SECURITY [AND THE SECURITIES ISSUABLE UPON

[EXERCISE] [CONVERSION] OF THIS SECURITY] MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN SECURED BY SUCH SECURITIES.

The Company acknowledges and agrees that the Investor may from time to time pledge pursuant to a bona fide margin agreement with a registered broker-dealer or grant a security interest in some or all of the Conversion Shares to a financial institution that is an “accredited investor” as defined in Rule 501(a) under the Securities Act and who agrees to be bound by the provisions of this Agreement and, if required under the terms of such arrangement, the Investor may transfer pledged or secured Conversion Shares to the pledgees or secured parties. Such a pledge or transfer would not be subject to approval of the Company, and no legal opinion of legal counsel of the pledgee, secured party or pledgor shall be required in connection therewith. Further, no notice shall be required of such pledge. At the Investor’s expense, the Company will execute and deliver such reasonable documentation as a pledgee or secured party of Conversion Shares may reasonably request in connection with a pledge or transfer of the Conversion Shares, including, if the Conversion Shares are subject to registration pursuant to Section 6.10 hereof, the preparation and filing of any required prospectus supplement under Rule 424(b)(3) under the Securities Act or other applicable provision of the Securities Act to appropriately amend the list of Selling Stockholders thereunder.

(c) Certificates evidencing the Conversion Shares shall not contain any legend (including the legend set forth in Section 6.8(b) hereof): (i) while a registration statement covering the resale of such security is effective under the Securities Act, or (ii) following any sale of such Conversion Shares pursuant to Rule 144, or (iii) if such Underlying Shares are eligible for sale under Rule 144(k), or (iv) if such legend is not required under applicable requirements of the Securities Act (including judicial interpretations and pronouncements issued by the staff of the SEC). The Company shall cause its counsel to issue a legal opinion to its transfer agent if required by the transfer agent to effect the removal of the legend hereunder. If all or any portion of a Note is converted or exercised (as applicable) at a time when there is an effective registration statement to cover the resale of the Conversion Shares, or if such Conversion Shares may be sold under Rule 144(k) or if such legend is not otherwise required under applicable requirements of the Securities Act (including judicial interpretations and pronouncements issued by the staff of the SEC), then such Conversion Shares shall be issued free of all legends. The Company agrees that at such time as such legend is no longer required under this Section 6.8(c), it will, no later than ten (10) Trading Days following the delivery by the Investor to the Company or the Transfer Agent of a certificate representing Conversion Shares, as applicable, issued with a restrictive legend (such third Trading Day, the “Legend Removal Date”), deliver or cause to be delivered to the Investor a certificate representing such shares that is free from all restrictive and other legends. The Company may not make any notation on its records or give instructions to the transfer agent that enlarge the restrictions on transfer set forth in this Section 6.8. Certificates for Conversion Shares subject to legend removal hereunder shall be transmitted by the transfer agent to the Investor by crediting the account of the Investor’s prime broker with the Depository Trust Company System.

(d) In addition to the Investor’s other available remedies, the Company shall pay to the Investor (unless waived by the Investor), in cash, as liquidated damages and not as a penalty, for each $100 of Conversion Shares (based on the VWAP of the Common Stock on the date such Conversion Shares are submitted to the transfer agent) delivered for removal of the restrictive legend and subject to Section 6.8(c), $10 per Trading Day (increasing to $20 per Trading Day 5 Trading Days after such damages have begun to accrue) for each Trading Day after the second Trading Day following the Legend Removal Date until such certificate is delivered without a legend. Nothing herein shall limit the Investor’s right to pursue actual damages for the Company’s failure to deliver certificates representing any Conversion Shares as required by the Transaction Documents, and the Investor shall have the right to pursue all remedies available to it at law or in equity including, without limitation, a decree of specific performance and/or injunctive relief.

(e) The Investor agrees that the removal of the restrictive legend from certificates representing Conversion Shares as set forth in this Section 6.8 is predicated upon the Company’s reliance that the Investor will sell any Conversion Shares pursuant to either the registration requirements of the Securities Act, including any applicable prospectus delivery requirements, or an exemption therefrom, and that if Conversion Shares are sold pursuant to a registration statement, they will be sold in compliance with the plan of distribution set forth therein.

Section 6.9 Securities Law Disclosure; Publicity. The Company shall, by 12:00 p.m. (New York City time) on the fourth Trading Day following the date hereof (or such shorter time period as shall be required by Form 8-K or otherwise agreed to by the parties), issue a Current Report on Form 8-K disclosing the material terms of the transactions contemplated hereby and attaching the Transaction Documents as exhibits thereto. The Company and the Investor shall consult with each other in issuing any other press releases with respect to the transactions contemplated hereby, and neither the Company nor the Investor shall issue any such press release or otherwise make any such public statement without the prior consent of the Company, with respect to any press release of the Investor, or without the prior consent of the Investor, with respect to any press release of the Company, which consent shall not unreasonably be withheld or delayed, except if such disclosure is required by law, in which case the disclosing party shall promptly provide the other party with prior notice of such public statement or communication. Notwithstanding the foregoing, the Company shall not include the name of the Investor in any filing with the SEC or any regulatory agency or Trading Market, without the prior written consent of the Investor, except (i) as required by federal securities law in connection with (A) any registration statement filed with the SEC and (B) the filing of final Transaction Documents (including signature pages thereto) with the SEC and (ii) to the extent such disclosure is required by law or Trading Market regulations, in which case the Company shall provide the Investor with prior notice of such disclosure permitted under this clause (ii).

Section 6.10 Registration of Shares. The Company shall:

(a) file in a timely manner a Form D relating to the sale of the Shares under this Agreement, pursuant to Regulation D under the Securities Act and to provide a copy thereof, promptly upon request of the Investor;

(b) cause the Shares to be duly listed for trading on the Nasdaq Global Market (or any successor Trading Market) concurrently with the issuance of such Shares;

(c) ensure that the Shares issued to the Investor shall be registered or be exempt from registration pursuant to Section 4(2) or Regulation D of the Securities Act (or other exemption from registration) and that the Investor may resell such Shares pursuant to Rule 144 of the Securities Act (subject to any applicable holding periods thereunder); and

(d) file documents required of the Company for customary Blue Sky clearance in all states requiring Blue Sky clearance and provide evidence of such filings promptly upon request of the Investor; provided, however, that the Company shall not be required to qualify to do business or consent to service of process in any jurisdiction in which it is not now so qualified or has not so consented.

Section 6.11 Reservation and Listing of Shares.

(a) The Company shall maintain a reserve from its duly authorized shares of Common Stock for issuance pursuant to the Transaction Documents in such amount as may be required to fulfill its obligations in full under the Transaction Documents.

(b) The Company shall, if applicable: (i) in the time and manner required by the principal Trading Market, prepare and file with such Trading Market an additional shares listing application covering a number of shares of Common Stock at least equal to the Required Minimum on the date of such application, (ii) take all steps necessary to cause such shares of Common Stock to be approved for listing on such Trading Market as soon as possible thereafter, (iii) provide to the Investor evidence of such listing, and (iv) maintain the listing of such Common Stock on any date at least equal to the Required Minimum on such date on such Trading Market or another Trading Market; provided that such listing shall include any additional shares that may be issuable under the Note as a result of any adjustments to the Conversion Price that would affect the number of Conversion Shares issuable to the Investor.

Section 6.12 Stockholder Approval. If the issuance of any Shares to the Investor would cause the Company to exceed the Issuable Maximum, the Company shall use commercially reasonable efforts to obtain Stockholder Approval of any Shares which would otherwise exceed the Issuable Maximum within six (6) months of the date of the Investor’s request that the Company seek Stockholder Approval for the issuance of such Shares. The proxy for such stockholder meeting shall contain the recommendation of the Company’s Board of Directors that such proposal be approved. The Company shall solicit proxies from its stockholders in connection therewith in the same manner as all other management proposals in such proxy statement and all management-appointed proxyholders shall vote their proxies in favor of such proposal.

ARTICLE VII

CONDITIONS TO OBLIGATION OF THE COMPANY

The obligation of the Company to sell Purchased Securities to the Investor at the Closing is subject to the satisfaction, on or before the Closing, of the conditions set forth in this Article 7.

Section 7.1 Representations and Warranties. The representations and warranties contained in Article 5 shall be true, complete and correct as of the date hereof and, as of the Closing Date as though such representations and warranties had been made on and as of such date.

Section 7.2 Performance. The Investor shall have performed and complied in all material respects with all agreements contained herein, and in the agreements, documents and instruments contemplated hereby which are required to be performed or complied with by them prior to or at the date of the Closing.

Section 7.3 Required Consents. The Company shall have obtained the written consent or approval of each person whose consent or approval is required in connection with this Agreement.

Section 7.4 Litigation. No suit, action or other proceeding shall be pending or, to the knowledge of Company, threatened by any third party or by or before any court or governmental agency in which it is sought to restrain or prohibit or to obtain damages or other relief in connection with this Agreement or the consummation of the transactions contemplated hereby, and no investigation that might result in any such suit, action or other proceeding shall be pending or, to the knowledge of the Company, threatened.

Section 7.5 Legislation. No statute, rule, regulation, order, or interpretation shall have been enacted, entered or deemed applicable by any domestic or foreign government or governmental or administrative agency or court which would make the transactions contemplated by this Agreement illegal.

ARTICLE VIII

CONDITIONS TO THE OBLIGATIONS OF INVESTOR

The obligation of the Investor to purchase the Purchased Securities at the Closing is subject to the satisfaction, on or before the Closing, of the conditions set forth in this Article 7.

Section 8.1 Representations and Warranties. The representations and warranties contained in Article 4 shall be true, complete and correct as of the date hereof and, as of the Closing Date (as though such representations and warranties had been made on and as of such date), and the Chief Executive Officer and Chief Financial Officer of the Company shall have certified to such effect to the Investor in writing.

Section 8.2 Performance. The Company shall have performed and complied in all material respects with all agreements contained herein, and in the agreements, documents and instruments contemplated hereby which are required to be performed or complied with by it prior to or at the date of the Closing, and the Chief Executive Officer and Chief Financial Officer of the Company shall have certified to the Investor in writing to such effect and to the further effect that all of the conditions set forth in this Article 8 have been satisfied.

Section 8.3 All Proceedings to be Satisfactory. All corporate and other proceedings to be taken by the Company in connection with the transactions contemplated hereby and all documents incident thereto shall be reasonably satisfactory in form and substance to the Investor and their counsel, and the Investor and their counsel shall have received all such counterpart originals or certified or other copies of such documents as they reasonably may request.

Section 8.4 Supporting Documents.

(a) The Investor and their counsel shall have received copies of the following documents:

(i) a certificate of the Secretary of State of the State of Delaware of the Company dated as of a date within three days prior to the Closing Date as to the corporate existence of the Company and listing all documents of the Company on file with such Secretary of State;

(ii) a certificate of the Secretary of the Company dated the Closing Date and certifying: (A) the Company’s and each Affiliate’s then-current Certificate of Incorporation and Bylaws; and (B) that attached thereto is a true and complete copy of any applicable resolutions adopted by the Board of Directors of the Company authorizing the execution, delivery and performance of this Agreement and the Transaction Documents, and the issuance, sale and delivery of the Purchased Securities and the Conversion Shares, and that all such resolutions are in full force and effect and are all the resolutions adopted in connection with the transactions contemplated by this Agreement and the Transaction Documents; and

(iii) such additional supporting documents and other information with respect to the operations and affairs of the Company as any Investor or the Investor’s counsel reasonably may request.

Section 8.5 Required Consents. The Company shall have obtained the written consent or approval, in form and substance reasonably satisfactory to the Investor, of each person whose consent or approval is required in connection with this Agreement.

Section 8.6 Litigation. No suit, action or other proceeding shall be pending or, to the knowledge of the Company, threatened by any third party or by or before any court or governmental agency in which it is sought to restrain or prohibit or to obtain damages or other relief in connection with this Agreement or the consummation of the transactions contemplated hereby, and no investigation that might result in any such suit, action or other proceeding shall be pending or, to the knowledge of Company, threatened.

Section 8.7 Legislation. No statute, rule, regulation, order, or interpretation shall have been enacted, entered or deemed applicable by any domestic or foreign government or governmental or administrative agency or court which would make the transactions contemplated by this Agreement illegal.

Section 8.8 No Material Adverse Changes. Since the date of this Agreement, no events shall have occurred or circumstances arisen which are reasonably expected, individually or in the aggregate, to have or result in a Material Adverse Effect upon the Company. The Company shall fully cooperate as reasonably requested by the Investor to enable the Investor to determine that this condition has been satisfied.

Section 8.9 Liens. There shall exist as of the Closing no Liens, other than Permitted Liens, on any assets or properties of the Company.

Section 8.10 Transaction Documents; Additional Agreements. The Company and the Investor shall have executed and delivered each of the Transaction Documents to which it is a party. Each such document or agreement shall constitute the valid and binding obligation of such party, enforceable against such party in accordance with its terms. Any failure to deliver the documents in the time periods set forth in this Section 8.10 shall constitute a default under the Note.

Section 8.11 Prior Preemptive Rights. All of the Company’s obligations regarding preemptive or first refusal rights with respect to the issuance of its securities shall have been terminated in their entirety or duly waived pursuant to a written instrument in form and content satisfactory to the Investor and the Investor’s counsel with respect to (a) the issuance of the Purchased Securities and (b) the issuance of the Conversion Shares.

Section 8.12 No Default. Since the date hereof, no default (or event which, with the passage of time and/or the giving of notice, would constitute a default) of the Company shall have occurred under this Agreement or any of the Transaction Documents.

ARTICLE IX

INDEMNIFICATION

Section 9.1 Indemnification of Investor. The Company shall indemnify, defend and hold harmless the Investor and its respective subsidiaries, officers, directors and owners from and against and in respect of any and all demands, claims, actions or causes of action, assessments, losses, damages, liabilities, interest and penalties, costs and expenses (including, without limitation, reasonable legal fees and disbursements incurred in connection therewith and in seeking indemnification therefor, and any amounts or expenses required to be paid or incurred in connection with any action, suit, proceeding, claim, appeal, demand, assessment or judgment) (“Indemnifiable Losses”), resulting from, arising out of, or imposed upon or incurred by any person to be indemnified hereunder (i) by reason of any breach of any representation, warranty, covenant or agreement of the Company contained in this Agreement or any agreement, certificate contemplated by this Agreement or any agreement, certificate, or document executed and delivered by the Company pursuant hereto or in connection with any of the transactions contemplated by this Agreement or (ii) any Indemnifiable Losses arises under the Securities Act,

the Exchange Act, or any other federal or state statutory law or regulation, or at common law or otherwise (including in settlement of any litigation, if such settlement is effected with the written consent of the Company), insofar as such losses, claims, damages, liabilities or expenses (or actions in respect thereof as contemplated below) arise out of or are based upon any untrue statement or alleged untrue statement of any material fact contained or incorporated by reference in any registration statement which may be filed with the SEC, including financial statements and schedules, and all other documents filed as a part thereof, including any information deemed to be a part thereof as of the time of effectiveness pursuant to paragraph (b) of Rule 430A, or pursuant to Rule 434, under the Securities Act, or in the prospectus related thereto, in the form first filed with the SEC pursuant to Rule 424(b) under the Securities Act or filed as part of the Registration Statement at the time of effectiveness if no Rule 424(b) filing is required (the “Prospectus”) or any amendment or supplement to the Registration Statement or Prospectus, or arise out of or are based upon the omission or alleged omission to state in any of them a material fact required to be stated therein or necessary to make the statements in any of them, in light of the circumstances under which they were made, not misleading, and will reimburse the Investor for reasonable legal and other expenses as such expenses are incurred by the Investor or controlling person in connection with investigating, defending, settling, compromising or paying any such loss, claim, damage, liability, expense or action; provided, however, that the Company will not be liable in any such case to the Investor to the extent that any such loss, claim, damage, liability or expense arises out of or is based upon (i) an untrue statement or alleged untrue statement or omission or alleged omission made in the registration statement, the Prospectus or any amendment or supplement thereto in reliance upon and in conformity with written information furnished to the Company by or on behalf of the Investor expressly for use in the registration statement, the Prospectus or any amendment or supplement thereto, or (ii) the failure of the applicable Investor to comply with the covenants and agreements contained in Section 5.2 of this Agreement regarding the resale of the Shares, or (iii) the inaccuracy of any representations and warranties made by the Investor in this Agreement or (iv) any untrue statement or omission of a material fact required to make such statement not misleading in any Prospectus that is corrected in any subsequent Prospectus or supplement thereto that was delivered to the Investor a reasonable amount of time before the pertinent sale or sales by the Investor or (v) a direct claim against the Company by such Investor if such Investor is a person that is under common control with any Investor (as opposed to a third-party claim against such Investor).

Section 9.2 Indemnification of the Company. The Investor shall indemnify, defend and hold harmless the Company and each of its subsidiaries, officers, directors and stockholders from and against and in respect of any and all Indemnifiable Losses resulting from, arising out of, or imposed upon or incurred by any person to be indemnified hereunder by reason of (i) any breach of any representation, warranty, covenant or agreement by the Investor contained in this Agreement or any agreement, certificate or document executed and delivered by the Investor pursuant hereto or in connection with any of the transactions contemplated by this Agreement, (ii) any failure on the part of such Investor to comply with the covenants and agreements contained in Section 5.2 of this Agreement regarding the resale of the Shares or (iii) any untrue or alleged untrue statement of any material fact contained in any registration statement, the Prospectus, or any amendment or supplement thereto, or arise out of or are based upon the omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, in each case to the extent, but only to

the extent, that such untrue statement or alleged untrue statement or omission or alleged omission was made in the registration statement, the Prospectus, or any amendment or supplement thereto, in reliance upon and in conformity with written information furnished to the Company by or on behalf of such Investor expressly for use therein and such Investor will reimburse the Company, each of its directors, each of its officers who signed any registration statement and each controlling person for reasonable legal and other expenses as such expenses are incurred by the Company, each of its directors, each of its officers who signed such registration statement and each controlling person in connection with investigating, defending, settling, compromising or paying any such loss, claim, damage, liability, expense or action; provided, however, that the Investor shall not be liable for any such untrue or alleged untrue statement or omission or alleged omission of which the Investor has delivered to the Company in writing a correction of such untrue statement or omission of a material fact a reasonable amount of time before the occurrence of the transaction from or upon which such loss, claim, damage, liability or expense arose or was based.

Section 9.3 Third-Party Claims. If a claim by a third party is made against an indemnified party and if the indemnified party intends to seek indemnity with respect thereto under this Article 9, such indemnified party shall promptly notify the indemnifying party of such claim; provided, however, that failure to give timely notice shall not affect the rights of the indemnified party so long as the failure to give timely notice does not adversely affect the indemnifying party’s ability to defend such claim against a third party. The indemnified party shall not settle such claim without the consent of the indemnifying party, which consent shall not be unreasonably withheld or delayed. If the indemnifying party acknowledges in writing its indemnity obligations for Indemnifiable Losses resulting therefrom, the indemnifying party may participate at its own cost and expense in the settlement or defense of any claim for which indemnification is sought.

Section 9.4 Cooperation as to Indemnified Liability. Each party hereto shall cooperate fully with the other parties with respect to access to books, records, or other documentation within such party’s control, if deemed reasonably necessary or appropriate by any party in the defense of any claim which may give rise to indemnification hereunder.

ARTICLE X

TERMINATION AND DEFAULT

Section 10.1 Termination. The obligation of the parties hereto to consummate the remaining transactions contemplated hereby may be terminated and abandoned at any time at or before the Closing if any of the following events occurs:

(a) by and at the written option of the Investor or the Company if the Closing shall not have occurred on or before January 31, 2008, provided that the terminating party shall not have breached in any material respect its obligations under this Agreement in any manner that shall have been the proximate cause of or resulted in, the failure to complete the Closing by such date; or

(b) by the mutual written consent of each of the parties; or

(c) by and at the option of the Investor or the Company if any governmental authority shall have issued an order, decree, or ruling or taken any other action restraining, enjoining or otherwise prohibiting in any material respects the transactions contemplated hereby and such order, decree, ruling or other action shall have become final and nonappealable.

Section 10.2 Effect.

(a) Upon termination of this Agreement, the Investor’s rights and obligations to purchase any Convertible Note or Conversion Shares pursuant to Article 2 hereof shall terminate.

(b) Termination of this Agreement by a party shall not relieve any other party hereto of any liability for breach of representation, warranty, covenant or agreement by such other parties including liability for monetary damages and/or specific performance.

ARTICLE XI

OTHER PROVISIONS

Section 11.1 Further Assurances. At such time and from time to time on and after the date hereof upon request by the Investor, the Company will execute, acknowledge and deliver, or will cause to be done, executed, acknowledged and delivered, all such further acts, certificates and assurances that may be reasonably required for the better conveying, transferring, assigning, delivering, assuring and confirming to the Investor, or to the Investor’s respective successors and assigns, all of the Conversion Shares or to otherwise carry out the purposes of this Agreement and the agreements, documents and instruments contemplated hereby.

Section 11.2 Complete Agreement. The Schedules and Exhibits to this Agreement shall be construed as an integral part of this Agreement to the same extent as if they had been set forth verbatim herein. This Agreement and the Schedules and Exhibits hereto constitute the entire agreement between the parties hereto with respect to the subject matters hereof and thereof and supersede all prior agreements whether written or oral relating hereto.

Section 11.3 Survival of Representations, Warranties and Agreements. The representations, warranties, covenants and agreements contained herein shall survive the Closing and remain in full force and effect; provided, however, that the representations and warranties shall expire on the second anniversary of the date of the Closing hereunder. No independent investigation of the Company by the Investor, its counsel, or any of its agents or employees shall in any way limit or restrict the scope of the representations and warranties made by the Company in this Agreement.

Section 11.4 Consent, Waiver, Amendment, Etc. The failure of any party hereto to enforce at any time any of the provisions of this Agreement shall not, absent an express written waiver signed by the party making such waiver specifying the provision being waived, be construed to be a waiver of any such provision, nor in any way to affect the validity of this Agreement or any part thereof or the right of the party thereafter to enforce each and every such provision. No waiver of any breach of this Agreement shall be held to be a waiver of any other or subsequent breach. Except as otherwise specifically provided herein, in each case in which

approval of the Investor is required by the terms of this Agreement, such requirement shall be satisfied by a vote or the written consent of the Investor. With the written consent of the Investor, the obligations of the Company under this Agreement may be waived (either generally or in a particular instance and either retroactively or prospectively), and with the same approval the Company may amend or eliminate any of the provisions of this Agreement; provided, however, that no such waiver or amendment shall, without the written consent of the holders of all Purchased Securities at the time outstanding, amend this Section 11.4. Written notice of any such waiver, amendment, or consent shall be given to the record holders of the Purchased Securities who have not previously consented thereto in writing. Neither this Agreement nor any provision hereof may be changed, waived, discharged or terminated orally, but only by a statement in writing signed by the party against which enforcement of the change, waiver, discharge or termination is sought, except to the extent provided in this Section 11.4.

Section 11.5 Notices. All notices or other communications to a party required or permitted hereunder shall be in writing and shall be delivered personally or by facsimile (receipt confirmed electronically) to such party (or, in the case of any entity, to an executive officer of such party) or shall be sent by a reputable express delivery service or by certified mail, postage prepaid with return receipt requested, addressed as follows:

if to the Investor to:

WB QT, LLC

Suite 300

▇▇▇▇ ▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇

▇▇▇▇▇▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇

Attn: ▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇▇

with a copy to:

▇▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇, ▇▇., Esq.

▇▇▇▇▇▇ & ▇▇▇▇▇▇▇ LLP

▇▇ ▇. ▇^▇▇ ▇▇▇▇▇▇

▇▇▇▇▇ ▇▇▇▇

▇▇▇▇▇▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇

if to the Company to:

Quantum Fuel Systems Technologies Worldwide, Inc.

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▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇

Attn: W. ▇▇▇▇▇ ▇▇▇▇▇

with a copy to:

▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇

▇▇▇▇▇ & ▇▇▇▇▇▇▇ LLP

One Detroit Center

▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇., ▇▇▇▇▇ ▇▇▇▇

▇▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇

Any party may change the above-specified recipient and/or mailing address by notice to all other parties given in the manner herein prescribed. All notices shall be deemed given on the day when actually delivered as provided above (if delivered personally or by facsimile) or on the day shown on the return receipt (if delivered by mail or delivery service).

Section 11.6 Public Announcement. In the event any party proposes to issue any press release or public announcement concerning any provisions of this Agreement or the transactions contemplated hereby, such party shall so advise the other parties hereto, and the parties shall thereafter use their reasonable best efforts to cause a mutually agreeable release or announcement to be issued. No party will publicly disclose or divulge any provisions of this Agreement or the transactions contemplated hereby without the other parties’ written consent, except as may be required by applicable law (including applicable rules and regulations of the SEC) or stock exchange regulation, and except for communications to employees.

Section 11.7 Expenses. Subject to the following sentence, the Company and the Investor shall each pay their own expenses incident to this Agreement and the preparation for, and consummation of, the transactions provided for herein.

Section 11.8 Governing Law. All questions concerning the construction, validity, enforcement and interpretation of this Agreement and the other Transaction Documents shall be governed by and construed and enforced in accordance with the internal laws of the State of Minnesota, without regard to the principles of conflicts of law thereof. Each party agrees that all legal proceedings concerning the interpretations, enforcement and defense of the transactions contemplated by this Agreement and any other Transaction Documents (whether brought against a party hereto or its respective affiliates, directors, officers, stockholders, employees or agents) shall be commenced exclusively in the state and federal courts sitting in the State of Minnesota. Each party hereby irrevocably submits to the exclusive jurisdiction of the state and federal courts sitting in the State of Minnesota for the adjudication of any dispute hereunder or in connection herewith or with any transaction contemplated hereby or discussed herein (including with respect to the enforcement of any of the Transaction Documents), and hereby irrevocably waives, and agrees not to assert in any suit, action or proceeding, any claim that it is not personally subject to the jurisdiction of any such court, that such suit, action or proceeding is improper or is an inconvenient venue for such proceeding. If either party shall commence an action or proceeding to enforce any provisions of the Transaction Documents, then the prevailing party in such action or proceeding shall be reimbursed by the other party for its reasonable attorneys’ fees and other costs and expenses incurred with the investigation, preparation and prosecution of such action or proceeding.

Section 11.9 Titles and Headings; Construction. The titles and headings to the Articles and Sections herein are inserted for the convenience of reference only and are not intended to be a part of or to affect the meaning or interpretation of this Agreement. This Agreement shall be construed without regard to any presumption or other rule requiring construction hereof against the party causing this Agreement to be drafted.

Section 11.10 Benefit. Nothing in this Agreement, expressed or implied, is intended to confer on any person other than the parties hereto or their respective successors or assigns, any rights, remedies, obligations or liabilities under or by reason of this Agreement.

Section 11.11 Counterparts. This Agreement may be executed in any number of counterparts, each of which shall be deemed as original and all of which together shall constitute one instrument.

Section 11.12 Parties in Interest. All representations, covenants and agreements contained in this Agreement by or on behalf of any of the parties hereto shall bind and inure to the benefit of and be enforceable by the respective successors and assigns of the parties hereto, whether so expressed or not, and, in particular, shall inure to the benefit of and be enforceable by the holder or holders at the time of any of the Purchased Securities.

Section 11.13 Severability. If any provision of this Agreement is held invalid by a court of competent jurisdiction, the remaining provisions shall nonetheless be enforceable according to their terms. Further, if any provision is held to be overbroad as written, such provision shall be deemed amended to narrow its application to the extent necessary to make the provision enforceable according to applicable law and shall be enforced as amended.

[SIGNATURE PAGES FOLLOW]

IN WITNESS WHEREOF, the undersigned has executed this Agreement to be effective as of the date first written above.

QUANTUM FUEL SYSTEMS TECHNOLOGIES WORLDWIDE, INC.


a Delaware corporation

By:		/s/ W. ▇▇▇▇▇ ▇▇▇▇▇
Name:		W. ▇▇▇▇▇ ▇▇▇▇▇
Title:		Chief Financial Officer

IN WITNESS WHEREOF, the undersigned has executed this Agreement to be effective as of the date first written above.


INVESTOR:

WB QT, LLC

By:		/s/ ▇▇▇▇▇▇▇▇ ▇▇▇▇
Name:		▇▇▇▇▇▇▇▇ ▇▇▇▇
Title:		CFO

Address:		Suite 300
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		▇▇▇▇▇▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇

QUANTUM FUEL SYSTEMS TECHNOLOGIES WORLDWIDE, INC. CONVERTIBLE NOTE PURCHASE AGREEMENT January 16, 2008

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