Amended and Restated Underwriting Agreement, dated September 15, 2016 by and among the Company, Cantor Fitzgerald Canada Corporation and Rodman & Renshaw a unit of H.C. Wainwright & Co., LLC

Registration Statement. The Registration Statement meets the requirements set forth in Rule 415(a)(1)(x) under the Securities Act and complies with said Rule and the U.S. Prospectus Supplement will meet the requirements set forth in Rule 424(b). The Company has advised the Co-Lead Underwriters of all further information (financial and other) with respect to the Company required to be set forth therein in the Registration Statement and U.S. Prospectus Supplement. The Registration Statement has become effective under the Securities Act. No stop order suspending the effectiveness of the Registration Statement is in effect and no proceedings for such purpose have been instituted or are pending or, to the knowledge of the Company, are contemplated or threatened by the SEC. The U.S. Prospectus when filed complied in all material respects with the Securities Act and is identical in all material respects to the copies thereof delivered to the Underwriters for use in connection with the offer and sale of the Units. Each of the Registration Statement and any post-effective amendment thereto, at the time each part thereof became effective pursuant to the Securities Act and at the First Closing Date and each Option Closing Date, complied and will comply in all material respects with the Securities Act and did not and, any amendment or supplement thereto, will not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading. As of the Applicable Time, the Time of Sale Disclosure Package did not, and at the time of the First Closing Date and each Option Closing Date, the Time of Sale Disclosure Package, as then amended or supplemented by the Company, if applicable, will not, contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading. The U.S. Prospectus, as amended or supplemented, as of its date and at the First Closing Date and each Option Closing Date, did not and will not contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. The representations and warranties set forth in the three immediately preceding sentences shall not apply to statements in, or omissions from, any such document made in reliance upon, and in conformity with, information furnished to the Company by the Underwriters specifically for use in the preparation thereof as set forth in Section 10(2). There are no agreements, contracts, arrangements or understandings (written or oral) or other documents required to be described in the Time of Sale Prospectus or the U.S. Prospectus or to be filed as exhibits to the Registration Statement which have not been described or filed as required.

Compliance with Canadian Laws and Regulations. The Company is eligible to use the Shelf Procedures. No cease trade order preventing or suspending the use of the Canadian Preliminary Base Prospectus or the Canadian Prospectus or preventing the distribution of the Units has been issued and no proceeding for that purpose has been initiated or, to the knowledge of the Company, threatened, by any of the Canadian Commissions; as of their respective dates, the Canadian Preliminary Base Prospectus and the Canadian Prospectus complied in all material respects with all applicable Canadian Securities Laws; each of the Canadian Commissions in the Qualifying Jurisdictions has issued or is deemed to have issued receipts for the Canadian Preliminary Base Prospectus and the Canadian Prospectus. On the First Closing Date and each Option Closing Date (i) the Canadian Prospectus will comply in all material respects with the Canadian Securities Laws and (ii) the Canadian Prospectus or any amendment or supplement thereto constituted at the respective dates thereof, and will constitute at the First Closing Date and each Option Closing Date full, true and plain disclosure of all material facts relating to the Units, that is required to be in the Canadian Prospectus, and did not at the respective dates thereof, and will not at the First Closing Date and each Option Closing Date contain a misrepresentation or an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading. To its knowledge, the Company is not a “related issuer” or “connected issuer” (as those terms are defined in National Instrument 33-105 - Underwriting Conflicts of the Canadian Securities Administrators) of any of the Underwriters.

Reporting Issuer and TSX and NYSE Status. The Company is a “reporting issuer” in the Qualifying Jurisdictions. The Company is in compliance in all material respects with the by-laws, rules and regulations of each of the Exchanges.

Short Form Eligibility. The Company is eligible to file a prospectus in the form of a short form prospectus under NI 44-101.

Status under the Securities Act. The Company was not and is not an “ineligible issuer” as defined in Rule 405 under the Securities Act at the times specified in Rules 164 and 433 under the Securities Act in connection with the offering of the Units.

Incorporated Documents. The documents incorporated or deemed to be incorporated by reference in the Prospectuses and the Registration Statement, when they were filed with the Canadian Commissions in each of the Qualifying Jurisdictions or the SEC under the Securities Act or the Exchange Act, conformed in all material respects to the requirements of the Canadian Securities Laws or U.S. Securities Laws, as applicable; and any further documents to be incorporated by reference in the Prospectuses or the Registration Statement subsequent to the effectiveness of the Registration Statement and prior to the completion of the distribution of the Units, when such documents are so filed, will conform in all material respects to the applicable requirements of Canadian Securities Laws and U.S. Securities Laws, as applicable, and will not contain a misrepresentation or an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading.

No Marketing Materials. Other than the term sheets in respect of the offering and sale of Units dated September 14, 2016 and September 15, 2016, the Company has not provided any “marketing materials” (as such term is defined in National Instrument 41-101 - General Prospectus Requirements) to any potential investors of Units.

No Conflicts. Neither the execution of this Agreement, nor the issuance, offering or sale of the Units, nor the consummation of any of the transactions contemplated herein and therein, nor the compliance by the Company with the terms and provisions hereof and thereof will conflict with, or will result in a breach of, any of the terms and provisions of, or has constituted or will constitute a default under, or has resulted in or will result in the creation or imposition of any lien, charge or encumbrance upon any property or assets of the Company pursuant to the terms of any agreements, contracts, arrangements or understandings (written or oral) to which the Company may be bound or to which any of the property or assets of the Company is subject, except (i) such conflicts, breaches or defaults as may have been waived, and (ii) such conflicts, breaches and defaults that would not reasonably be expected to have a Material Adverse Effect (as defined below); nor will such action result (x) in any violation of the provisions of the organizational or governing documents of the Company, or (y) in any violation of the provisions of any statute or any order, rule or regulation applicable to the Company or of any Governmental Authority having jurisdiction over the Company, except such violations that would not reasonably be expected to have a Material Adverse Effect, either individually or in the aggregate.

No Misstatement or Omission in an Issuer Free Writing Prospectus or marketing materials. Each issuer free writing prospectus and any marketing materials, as of its issue date and as of each Applicable Time, did not, does not and will not include any information that conflicted, conflicts or will conflict with the information contained in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, including any Incorporated Document deemed to be a part thereof that has not been superseded or modified. The foregoing sentence does not apply to statements in or omissions from any issuer free writing prospectus or any marketing materials made in reliance upon, and in conformity with, written information furnished to the Company by or on behalf of the Underwriters specifically for inclusion therein as contemplated by Section 10(2).

Reports and Documents, etc. There are no reports or information of the Company or, to the knowledge of the Company, of any third party, that in accordance with the requirements of the Canadian Securities Laws or U.S. Securities Laws must be made publicly available in connection with the offering of the Units that have not been made publicly available as required. There are no documents of the Company or, to the knowledge of the Company, of any third party, required to be filed with the Canadian Commissions in the Qualifying Jurisdictions or with the SEC in the United States in connection with the Time of Sale Prospectus, the Canadian Prospectus and the U.S. Prospectus that have not been filed as required pursuant to the Canadian Securities Laws or U.S. Securities Laws, as applicable. There are no agreements, contracts, arrangements or understandings (written or oral) or other documents of the Company or, to the knowledge of the Company, of any third party, required to be described in the Time of Sale Prospectus, the Canadian Prospectus and the U.S. Prospectus which have not been described or filed as required pursuant to the Canadian Securities Laws or U.S. Securities Laws, as applicable.

Offering Materials Furnished to Underwriters. The Company has delivered or will deliver on the First Closing Date to the Co-Lead Underwriters (or with respect to the Registration Statement, the Time of Sale Prospectus, the U.S. Prospectus, as amended or supplemented, and any free writing prospectus, made available on EDGAR) one complete manually signed copy of the Registration Statement and each consent and certificate of experts filed as a part thereof, and conformed copies (to the extent such documents contain signatures) of the Registration Statement, the Time of Sale Prospectus, the Canadian Prospectus and the U.S. Prospectus, as amended or supplemented, and any free writing prospectus reviewed and consented to by the Co-Lead Underwriters, in such quantities and at such places as the Co-Lead Underwriters have reasonably requested for each of the Underwriters.

Warrants. The Warrants and Additional Warrants have been duly and validly created and the Warrant Shares and the Additional Warrant Shares have been authorized and allotted for issuance and upon the payment therefor and the issue thereof upon exercise of the Warrants and Additional Warrant Shares in accordance with the provisions of the Warrant Indenture, the Warrant Shares and the Additional Warrant Shares will be validly issued as fully paid and non-assessable common shares of the Company (the “Common Shares”).

Corporate Action. All necessary corporate action has been taken by the Company to authorize the issuance, sale and delivery of the Unit Shares, the Warrants, the Warrant Shares, the Additional Unit Shares, the Additional Warrants and the Additional Warrant Shares, on the terms set forth in this Agreement, and, if applicable, each certificate representing the Warrants and the Additional Warrants (the “Warrant Certificates”) will be, a valid and binding obligation of the Company enforceable against the Company in accordance with its terms, subject to bankruptcy, insolvency, moratorium or similar laws affecting creditors’ rights generally and, except as limited by the application of equitable remedies, which may be granted in the discretion of a court of competent jurisdiction, and that enforcement of the rights to indemnity and contribution set out in this Agreement may be limited by Applicable Law.

Distribution of Offering Material by the Company. The Company has not distributed and will not distribute, prior to the completion of the Underwriters’ distribution of the Units, any offering material in connection with the offering and sale of the Units other than the Time of Sale Prospectus, the Canadian Prospectus, the U.S. Prospectus, any free writing prospectus reviewed and consented to by the Co-Lead Underwriters on behalf of the Underwriters, or the Registration Statement.

Authorization; Enforceability. The Company has full corporate right, power and authority to enter into this Agreement and perform the transactions contemplated hereby. This Agreement has been duly authorized, executed and delivered by the Company and is a legal, valid and binding agreement of the Company enforceable in accordance with its terms, except to the extent that enforceability may be limited by bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ rights generally and by general equitable principles.

No Material Adverse Effect. Subsequent to the respective dates as of which information is given in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, if any (including any document deemed incorporated by reference therein), there has not been (i) any Material Adverse Effect, (ii) any transaction which is material to the Company and the Material Subsidiaries taken as a whole, (iii) any obligation or liability, direct or contingent (including any off-balance sheet obligations), incurred by the Company or any Material Subsidiary, which is material to the Company and the Material Subsidiaries taken as a whole, (iv) any material change in the capital stock or outstanding long-term indebtedness of the Company or any of the Material Subsidiaries or (v) any dividend or distribution of any kind declared, paid or made on the capital stock of the Company or any Material Subsidiary, other than in each case above in the ordinary course of business or as otherwise disclosed in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses.

Independent Accountants. KPMG LLP, who have delivered their report with respect to the audited Financial Statements (as defined below and which term as used in this Agreement includes the related notes thereto) filed with the SEC as a part of the Registration Statement and included in the Time of Sale Prospectus, the Canadian Prospectus and the U.S. Prospectus (each, an “Applicable Prospectus” and collectively, the “Applicable Prospectuses”), are independent public, certified public or chartered accountants as required by the Securities Act, the Exchange Act and applicable Canadian Securities Laws. There has not been any “reportable event” (as that term is defined in National Instrument 51-102 Continuous Disclosure Obligations of the Canadian Securities Administrators) with KPMG LLP or any other prior auditor of the Company or any of its Material Subsidiaries. To the Company’s knowledge, after due and careful inquiry, KPMG LLP is not in violation of the auditor independence requirements of the Sarbanes-Oxley Act of 2002.

Enforceability of Agreements. All agreements between the Company and third parties expressly referenced in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses are legal, valid and binding obligations of the Company enforceable in accordance with their respective terms, except to the extent that (i) enforceability may be limited by bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ rights generally and by general equitable principles, and (ii) the indemnification provisions of certain agreements may be limited by Applicable Law or public policy considerations in respect thereof, and except for any other potentially unenforceable term that, individually or in the aggregate, would not reasonably be expected to be material to the Company.

Financial Information. The consolidated financial statements of the Company filed with the SEC as a part of the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, together with the related notes and schedules (the “Financial Statements”), present fairly, in all material respects, the consolidated financial position of the Company and the Material Subsidiaries as of the dates indicated and the consolidated statements of comprehensive loss, shareholders’ equity and cash flows of the Company for the periods specified. Such Financial Statements conform in all material respects with United States generally accepted accounting principles (“GAAP”) where noted, applied on a consistent basis during the periods involved. The other financial and statistical data with respect to the Company and the Material Subsidiaries contained or incorporated by reference in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, are accurately and fairly presented in all material respects and prepared on a basis consistent with the financial statements and books and records of the Company; there are no financial statements (historical or pro forma) that are required to be included or incorporated by reference in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses that are not included or incorporated by reference as required; the Company and the Material Subsidiaries do not have any material liabilities or obligations, direct or contingent (including any off-balance sheet obligations), not described in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses and all disclosures contained or incorporated by reference therein; and no other financial statements are required to be set forth or to be incorporated by reference in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses.

Statistical, Industry-Related and Market-Related Data. The statistical, industry-related and market-related data included in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, are based on or derived from sources that the Company reasonably believes are reliable and accurate.

Organization. The Company and each of its Material Subsidiaries are, and will be, duly organized, validly existing as a corporation and in good standing (where such concept is recognized) under the laws of their respective jurisdictions of organization. The Company and each of the Material Subsidiaries are, and will be, duly licensed or qualified as a foreign corporation for transaction of business and in good standing under the laws of each other jurisdiction in which their respective ownership or lease of property or the conduct of their respective businesses requires such license or qualification, and have all corporate power and authority necessary to own or hold their respective properties and to conduct their respective businesses as described in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, except where the failure to be so qualified or in good standing or have such power or authority would not, individually or in the aggregate, have a material adverse effect or would reasonably be expected to have a material adverse effect on or affecting the assets, business, operations, earnings, properties, condition (financial or otherwise), shareholders’ equity or results of operations of the Company and the Material Subsidiaries taken as a whole, or prevent or materially interfere with consummation of the transactions contemplated hereby (a “Material Adverse Effect”).

Subsidiaries. The subsidiaries of the Company listed in Schedule “A” (individually a “Material Subsidiary” and collectively, the “Material Subsidiaries”), include all of the Company’s significant subsidiaries (as such term is defined in Rule 1-02 of Regulation S-X promulgated by the SEC). Except as set forth in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus or the Prospectuses, the Company owns, directly or indirectly, all of the equity interests of the Material Subsidiaries free and clear of any lien, charge, security interest, encumbrance, right of first refusal or other restriction, and all the equity interests of the Material Subsidiaries are validly issued and are fully paid, non-assessable and free of preemptive and similar rights.

Minute Books. Since January 1, 2014, all existing minute books of the Company and each of the Material Subsidiaries, including all existing records of all meetings and actions of the board of directors (including, the Audit, Compensation and Governance and Nominating Committees and other board committees) and securityholders of the Company (collectively, the “Corporate Records”) have been made available to the Underwriters and their counsel, and all such Corporate Records are complete in all material respects (except in respect of minutes for Board and Committee meetings since March 31, 2016 that are not yet available in draft form or otherwise, in which case agendas and handwritten notes of the business conducted at such meetings have been made available for review by the Underwriters). There are no transactions, agreements or other actions of the Company or any of the Material Subsidiaries that are required to be recorded in the Corporate Records that are not properly approved and/or recorded in the Corporate Records. All required filings have been made with the appropriate Governmental Authorities in the Province of Ontario in a timely fashion under the Business Corporations Act (Ontario), except for such filings where the failure to file would not have a Material Adverse Effect, either individually or in the aggregate.

No Violation or Default. Neither the Company nor any of the Material Subsidiaries is (i) in violation of its articles or by-laws or similar organizational documents; (ii) except as are disclosed in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, in violation or default, and no event has occurred that, with notice or lapse of time or both, would constitute such a violation or default, in the due performance or observance of any term, covenant or condition contained in any indenture, mortgage, deed of trust, loan agreement or other agreement or instrument to which the Company or any of the Material Subsidiaries is a party or by which the Company or any of the Material Subsidiaries is bound or to which any of the property or assets of the Company or any of the Material Subsidiaries are subject; or (iii) except as disclosed in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, in violation of any Applicable Law, except in the case of each of clauses (ii) and (iii) above, for any such violation or default that would not, individually or in the aggregate, have a Material Adverse Effect. To the Company’s knowledge, no other party under any material agreements, contracts, arrangements or understandings (written or oral) to which it or any of the Material Subsidiaries is a party is in violation or default in any respect thereunder where such violation or default would have a Material Adverse Effect.

Disclosures. The Company and each of the Material Subsidiaries (other than Material Subsidiaries acquired not more than 365 days prior to the Evaluation Date, as defined below) maintain systems of internal accounting controls applicable under GAAP in applicable periods, or 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’s internal control over financial reporting is effective and the Company is not aware of any material weaknesses in its internal control over financial reporting. Since the date of the latest audited financial statements of the Company included or incorporated by reference in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, there has been no change in the Company’s internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting. The Company has established disclosure controls and procedures (as defined in Exchange Act Rules 13a-15 and 15d-15) for the Company and designed such disclosure controls and procedures to ensure that material information relating to the Company and each of the Material Subsidiaries is made known to the certifying officers by others within those entities, particularly during the period in which the Company’s Annual Report on Form 10-K, is being prepared or during the period in which financial statements will be filed with the SEC on Form 10-Q. The Company’s certifying officers have evaluated the effectiveness of the Company’s controls and procedures as of December 31, 2015 (such date, the “Evaluation Date”). The Company presented in its Annual Report on Form 10-K for the fiscal year most recently ended the conclusions of the certifying officers about the effectiveness of the disclosure controls and procedures based on their evaluations as of the Evaluation Date and the disclosure controls and procedures are effective. Since the Evaluation Date, there have been no significant changes in the Company’s internal controls (as such term is defined in Item 307(b) of Regulation S-K under the Securities Act) or, to the Company’s knowledge, in other factors that could significantly affect the Company’s internal controls, except that the Company has limited the scope of its disclosure controls and procedures and internal control over financial reporting for its quarter ended June 30, 2016 to exclude controls, policies and procedures of a business that the Company acquired not more than 365 days before the last day of the period covered by the interim filing.

Capitalization. The issued and outstanding Common Shares have been validly issued, are fully paid and non-assessable and are not subject to any preemptive rights, rights of first refusal or similar rights. The Company has an authorized, issued and outstanding capitalization as set forth in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses as of the dates referred to therein (other than the grant of additional options under the Company’s existing stock option plans, or changes in the number of outstanding Common Shares of the Company due to the issuance of shares upon the exercise or conversion of securities exercisable for, or convertible into, Common Shares outstanding on the date hereof) and such authorized capital stock conforms in all material respects to the description thereof set forth in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses. The description of the securities of the Company in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses is complete and accurate in all material respects. Except as disclosed in or contemplated by the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, as of the date referred to therein, the Company does not have outstanding any options to purchase, or any rights or warrants to subscribe for, or any securities or obligations convertible into, or exchangeable for, or any contracts or commitments to issue or sell, any Common Shares or other securities.

No Applicable Registration or Other Similar Rights. There are no persons with registration or other similar rights to have any equity or debt securities registered or qualified for sale under the Registration Statement or the Canadian Prospectus or included in the offering contemplated by this Agreement who have not waived such rights in writing (including electronically) prior to the execution of this Agreement.

No Consents Required. No consent, approval, authorization, order, registration or qualification of or with Governmental Authority is required for the execution, delivery and performance by the Company of this Agreement, the issuance and sale by the Company of the Units, except for (i) the qualification of the Units for distribution in the United States from the Canadian Commissions; and (ii) such consents, approvals, authorizations, orders and registrations or qualifications as may be required under applicable U.S. federal and state securities laws or by the bylaws and rules of the Financial Industry Regulatory Authority, Inc. (“FINRA”) or the SEC in connection with the sale of the Units by the Underwriters.

No Preferential Rights. Except as set forth in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, (i) and except pursuant to options to purchase Common Shares pursuant to outstanding options, restricted stock units, warrants or convertible debentures, no person, as such term is defined in Rule 1-02 of Regulation S-X promulgated under the Securities Act (each, a “Person”), has the right, contractual or otherwise, to cause the Company to issue or sell to such Person any Common Shares or other securities of the Company, (ii) no Person has any preemptive rights, resale rights, rights of first refusal, or any other rights (whether pursuant to a “poison pill” provision or otherwise) to purchase any Common Shares or other securities of the Company, (iii) no Person has the right to act as an underwriter or as a financial advisor to the Company in connection with the offer and sale of the Units, and (iv) no Person has the right, contractual or otherwise, to require the Company to register under the Securities Act or qualify for distribution under Canadian Securities Laws any Common Shares or other securities of the Company, or to include any such Common Shares or other securities in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, whether as a result of the filing or effectiveness of the Registration Statement, the Prospectuses (or documents incorporated by reference therein) or the sale of the Units as contemplated thereby or otherwise.

Forward-Looking Information. No forward-looking statement (within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act and no forward-looking information within the meaning of Section 1(1) of the Ontario Securities Act) contained or incorporated by reference in the Registration Statement, the Prospectuses or the Time of Sale Prospectuses has been made or reaffirmed without a reasonable basis or has been disclosed other than in good faith.

Certificates. The form of certificates representing the Unit Shares, the Warrants, the Warrant Shares, the Additional Unit Shares, the Additional Warrants and the Additional Warrant Shares, to the extent that physical certificates are issued for such securities, will be in due and proper form and conform to the requirements of the Business Corporations Act (Ontario), the articles of incorporation of the Company and applicable requirements of the TSX, NYSE, DTC and CDS or will have been otherwise approved by the TSX and NYSE, if required, and will have been made eligible by DTC and CDS.

Transfer Agent. CST Trust Company has been duly appointed as registrar and transfer agent for the Common Shares.

Warrant Agents. CST Trust Company has been duly appointed as Canadian warrant agent for the Warrants. American Stock Transfer & Trust Company, LLC has been duly appointed as U.S. warrant agent for the Warrants.

No Litigation. There are no legal, governmental or regulatory actions, suits or proceedings pending, nor, to the Company’s knowledge, any legal, governmental or regulatory audits or investigations, to which the Company or a Subsidiary is a party or to which any property of the Company or any of the Material Subsidiaries is the subject that, individually or in the aggregate, if determined adversely to the Company or any of the Material Subsidiaries, could reasonably be expected to have a Material Adverse Effect or materially and adversely affect the ability of the Company to perform its obligations under this Agreement; except as disclosed in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, to the Company’s knowledge, no such actions, suits or proceedings are threatened or contemplated by any Governmental Authority or threatened by others; and (i) there are no current or pending audits or investigations, actions, suits or proceedings by or before any Governmental Authority that are required under the Securities Act or Canadian Securities Laws to be described in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses that are not so described; and (ii) there are no agreements, contracts, arrangements or understandings (written or oral) or other documents that are required under the Securities Act to be filed as exhibits to the Registration Statement that are not so filed.

Labor Disputes. No labor disturbance by or dispute with employees of the Company or any of the Material Subsidiaries exists or, to the knowledge of the Company, is threatened that could reasonably be expected to have a Material Adverse Effect.

Local Disputes. Except as set forth in the Registration Statement and the Prospectuses, no dispute between the Company and any local, native or indigenous group exists, or to the Company’s knowledge, is threatened or imminent with respect to any of the Company’s properties or exploration activities that could reasonably be expected to have a Material Adverse Effect.

Proposed Acquisition. Except as described in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, there are no material agreements, contracts, arrangements or understandings (written or oral) with any persons relating to the acquisition or proposed acquisition by the Company or its Material Subsidiaries of any material interest in any business (or part of a business) or corporation, nor are there any other specific contracts or agreements (written or oral) in respect of any such matters in contemplation.

Intellectual Property Rights. Except as disclosed in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, the Company and the Material Subsidiaries own, possess, license or have other rights to use all foreign and domestic patents, patent applications, trade and service marks, trade and service mark registrations, trade names, copyrights, licenses, inventions, trade secrets, technology, Internet domain names, know-how and other intellectual property (collectively, the “Intellectual Property”), necessary for the conduct of their respective businesses as now conducted except to the extent that the failure to own, possess, license or otherwise hold adequate rights to use such Intellectual Property would not, individually or in the aggregate, have a Material Adverse Effect. Except as disclosed in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses (a) there are no rights of third parties to any such Intellectual Property owned by the Company and the Material Subsidiaries; (b) to the Company’s knowledge, there is no infringement by third parties of any such Intellectual Property; (c) there is no pending or, to the Company’s knowledge, threatened action, suit, proceeding or claim by others challenging the Company’s and the Material Subsidiaries’ rights in or to any such Intellectual Property, and the Company is unaware of any facts which could form a reasonable basis for any such action, suit, proceeding or claim; (d) there is no pending or, to the Company’s knowledge, threatened action, suit, proceeding or claim by others challenging the validity or scope of any such Intellectual Property; (e) there is no pending or, to the Company’s knowledge, threatened action, suit, proceeding or claim by others that the Company and the Material Subsidiaries infringe or otherwise violate any patent, trademark, copyright, trade secret or other proprietary rights of others; (f) to the Company’s knowledge, there is no third-party U.S. patent or published U.S. patent application which contains claims for which an Interference Proceeding (as defined in 35 U.S.C. § 135) has been commenced against any patent or patent application described in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, as being owned by or licensed to the Company; and (g) the Company and the Material Subsidiaries have complied with the terms of each agreement pursuant to which Intellectual Property has been licensed to the Company or such Material Subsidiary, and all such agreements are in full force and effect, except, in the case of any of clauses (a)-(g) above, for any such infringement by third parties or any such pending or threatened suit, action, proceeding or claim as would not, individually or in the aggregate, result in a Material Adverse Effect.

Market Capitalization. At the time the Registration Statement was originally declared effective, and at the time the Company's most recent Annual Report on Form 10-K was filed with the SEC, the Company met the then applicable requirements for the use of Form S-3 under the Securities Act, including, but not limited to, General Instruction I.B.1 of Form S-3. The Company is not a shell company (as defined in Rule 405 under the Securities Act) and has not been a shell company for at least 12 calendar months previously and if it has been a shell company at any time previously, has filed current Form 10 information (as defined in Instruction I.B.6 of Form S-3) with the Commission at least 12 calendar months previously reflecting its status as an entity that is not a shell company.

No Material Defaults. Neither the Company nor any of the Material Subsidiaries has defaulted on any installment on indebtedness for borrowed money or on any rental on one or more long-term leases, which defaults, individually or in the aggregate, would have a Material Adverse Effect. The Company has not filed a report pursuant to Section 13(a) or 15(d) of the Exchange Act since the filing of its last Annual Report on Form 10-K, indicating that it (i) has failed to pay any dividend or sinking fund installment on preferred stock or (ii) has defaulted on any installment on indebtedness for borrowed money or on any rental on one or more long-term leases, which defaults, individually or in the aggregate, would have a Material Adverse Effect.

Certain Market Activities. Neither the Company, nor any of the Material Subsidiaries, nor to the knowledge of the Company any of their respective directors or officers has taken, directly or indirectly, any action designed, or that has constituted or might reasonably be expected to cause or result in, under the Exchange Act, Canadian Securities Laws or otherwise, the stabilization, maintenance or manipulation of the price of any security of the Company to facilitate the sale or resale of the Units.

Title to Real and Personal Property. Except as set forth in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, the Company and the Material Subsidiaries have good and marketable title in fee simple to all items of real property owned by them, good and valid title to all personal property described in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses as being owned by them that are material to the businesses of the Company or such Material Subsidiary, in each case free and clear of all liens, encumbrances and claims, except those that (i) do not materially interfere with the use made and proposed to be made of such property by the Company and any of the Material Subsidiaries or (ii) would not, individually or in the aggregate, have a Material Adverse Effect. Any real or personal property described in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses as being leased by the Company and any of the Material Subsidiaries is held by them under valid, existing and enforceable leases, except those that (A) do not materially interfere with the use made or proposed to be made of such property by the Company or any of the Material Subsidiaries or (B) would not, individually or in the aggregate, have a Material Adverse Effect. Each of the properties of the Company and the Material Subsidiaries complies with all applicable codes and Applicable Laws (including, without limitation, building and zoning codes, laws and regulations and laws relating to access to such properties), except if and to the extent disclosed in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses or except for such failures to comply that would not, individually or in the aggregate, interfere in any material respect with the use made and proposed to be made of such property by the Company and the Material Subsidiaries or otherwise have a Material Adverse Effect. None of the Company or the Material Subsidiaries has received from any Governmental Authorities any notice of any condemnation of, or zoning change affecting, the properties of the Company and the Material Subsidiaries, and the Company knows of no such condemnation or zoning change which is threatened, except for such that would not interfere in any material respect with the use made and proposed to be made of such property by the Company and the Material Subsidiaries or otherwise have a Material Adverse Effect, individually or in the aggregate.

Mining Rights. The White Mesa Mill, Henry Mountains Complex, Roca Honda Project, Canyon Mine Project, Daneros Mine, Sheep Mountain Project, La Sal Project, Nichols Ranch Project and Alta Mesa ISR Project, as described in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses (collectively, the “Material Properties”) are the only resource properties currently material to the Company in which the Company or the Material Subsidiaries have an interest; the Company or through the Material Subsidiaries, hold either freehold title, mining leases, mining concessions, mining claims, exploration permits, prospecting permits or participant interests or other conventional property or proprietary interests or rights, recognized in the jurisdiction in which the Material Properties are located, in respect of the ore bodies and minerals located on the Material Properties in which the Company (through the applicable Material Subsidiary) has an interest under valid, subsisting and enforceable title documents or other recognized and enforceable agreements, contracts, arrangements or understandings, sufficient to permit the Company (through the applicable Material Subsidiary) to explore for and exploit the minerals relating thereto; all leases or claims and permits relating to the Material Properties in which the Company (through the applicable Material Subsidiary) has an interest or right have been validly located and recorded in accordance with all Applicable Laws and are valid and subsisting; except as disclosed in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, the Company (through the applicable Material Subsidiary) has all necessary surface rights, access rights and other necessary rights and interests relating to the Material Property in which the Company (through the applicable Material Subsidiary) has an interest granting the Company (through the applicable Material Subsidiary) the right and ability to explore for and exploit minerals, ore and metals for development and production purposes as are appropriate in view of the rights and interest therein of the Company or the applicable Material Subsidiary, with only such exceptions as do not materially interfere with the current use made by the Company or the applicable Material Subsidiary of the rights or interest so held, and each of the proprietary interests or rights and each of the agreements, contracts, arrangements or understandings and obligations relating thereto referred to above is currently in good standing in all respects in the name of the Company or the applicable Material Subsidiary; except as disclosed in the Prospectuses, the Company and the Material Subsidiaries do not have any responsibility or obligation to pay any commission, royalty, license, fee or similar payment to any person with respect to the property rights thereof, except where such fee or payment would not have a Material Adverse Effect, either individually or in the aggregate;

the Company or the applicable Material Subsidiary holds direct interests in the Material Properties, as described in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses (the “Project Rights”), under valid, subsisting and enforceable agreements or instruments, and all such agreements and instruments in connection with the Project Rights are valid and subsisting and enforceable in accordance with their terms;

the Company and the Material Subsidiaries have identified all the material permits, certificates, and approvals (collectively, the “Permits”) which are or will be required for the exploration, development and eventual or actual operation of the Material Properties, which Permits include but are not limited to environmental assessment certificates, water licenses, land tenures, rezoning or zoning variances and other necessary local, provincial, state and federal approvals; and, except as disclosed in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, the appropriate Permits have either been received, applied for, or the processes to obtain such Permits have been or will in due course be initiated by the Company or the applicable Material Subsidiaries; and, except as disclosed in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, neither the Company nor the applicable Material Subsidiaries know of any issue or reason why the Permits should not be approved and obtained in the ordinary course;

all assessments or other work required to be performed in relation to the material mining claims and the mining rights of the Company and the applicable Material Subsidiary in order to maintain their respective interests therein, if any, have been performed to date and, except as disclosed in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, the Company and the applicable Material Subsidiary have complied in all material respects with all Applicable Laws in this regard as well as with regard to legal and contractual obligations to third parties in this regard except in respect of mining claims and mining rights that the Company and the applicable Material Subsidiary intend to abandon or relinquish and except for any non- compliance which would not either individually or in the aggregate have a Material Adverse Effect; all such mining claims and mining rights are in good standing in all respects as of the date of this Agreement;

except as disclosed in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, all mining operations on the properties of the Company and the Material Subsidiaries (including, without limitation, the Material Properties) have been conducted in all respects in accordance with good mining and engineering practices and all applicable workers’ compensation and health and safety and workplace laws, regulations and policies have been duly complied with;

except as disclosed in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, there are no environmental audits, evaluations, assessments, studies or tests relating to the Company or the Material Subsidiaries except for ongoing assessments conducted by or on behalf of the Company and the Material Subsidiaries in the ordinary course;

the Company made available to the respective authors thereof prior to the issuance of all of the applicable technical reports relating to the Material Properties (the “Reports”), for the purpose of preparing the Reports, as applicable, all information requested, and no such information contained any material misrepresentation as at the relevant time the relevant information was made available;

the Reports complied in all material respects with the requirements of NI 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”) as at the date of each such Report;

the Company is in compliance, in all material respects, with the provisions of NI 43-101 and has filed all technical reports required thereby and, at the time of filing, all such reports complied, in all material respects, with the requirements of NI 43-101; except as noted in the Prospectuses, all scientific and technical information disclosed in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses: (i) is based upon information prepared, reviewed and/or verified by or under the supervision of a “qualified person” (as such term is defined in NI 43- 101), (ii) has been prepared and disclosed in accordance with Canadian industry standards set forth in NI 43- 101, and (iii) was true, complete and accurate in all material respects at the time of filing; and

the title reports listed on Exhibit C attached hereto (the “Title Opinions”) are to the knowledge of the Company, correct and complete in all respects on the date hereof, except as in respect of concessions which are (i) not material, or (ii) were permitted to expire or were sold in the ordinary course of business, as described in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses.

Taxes. The Company and each of the Material Subsidiaries have filed all federal, state, provincial, local and foreign tax returns which have been required to be filed and paid all taxes shown thereon through the date hereof, to the extent that such taxes have become due and are not being contested in good faith, except where the failure to so file or pay would not have a Material Adverse Effect. Except as otherwise disclosed in or contemplated by the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, no tax deficiency has been determined adversely to the Company or any of the Material Subsidiaries which has had, individually or in the aggregate, a Material Adverse Effect. The Company has no knowledge of any federal, state, provincial or other governmental tax deficiency, penalty or assessment which has been or might be asserted or threatened against it which would have a Material Adverse Effect.

No Reliance. The Company has not relied upon the Underwriters or legal counsel for the Underwriters for any legal, tax or accounting advice in connection with the offering and sale of the Units.

Investment Company Act. Neither the Company nor any of the Material Subsidiaries is or, after giving effect to the offering and sale of the Units and the application of the proceeds thereof as described in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, will be an “investment company” or an entity “controlled” by an “investment company,” as such terms are defined in the Investment Company Act of 1940, as amended.

ERISA.To the knowledge of the Company, each material employee benefit plan, within the meaning of Section 3(3) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), that is maintained, administered or contributed to by the Company or any of its affiliates for employees or former employees of the Company and any of the Material Subsidiaries has been maintained in material compliance with its terms and the requirements of any applicable statutes, orders, rules and regulations, including but not limited to ERISA and the Internal Revenue Code of 1986, as amended (the “Code”); no prohibited transaction, within the meaning of Section 406 of ERISA or Section 4975 of the Code, has occurred which would result in a material liability to the Company with respect to any such plan excluding transactions effected pursuant to a statutory or administrative exemption; and for each such plan that is subject to the funding rules of Section 412 of the Code or Section 302 of ERISA, no “accumulated funding deficiency” as defined in Section 412 of the Code has been incurred, whether or not waived, and the fair market value of the assets of each such plan (excluding for these purposes accrued but unpaid contributions) exceeds the present value of all benefits accrued under such plan determined using reasonable actuarial assumptions.

Company is not a “Controlled Foreign Corporation”. As of the date hereof, the Company is not a “controlled foreign corporation,” as such term is defined in the Code, and does not expect to become a controlled foreign corporation in the foreseeable future.

Insurance. The Company and each of the Material Subsidiaries carry, or are covered by, insurance in such amounts and covering such risks as the Company and each of the Material Subsidiaries reasonably believe are adequate for the conduct of their properties and as is customary for companies engaged in similar businesses in similar industries.

No Price Stabilization or Manipulation; Compliance with Regulation M. The Company has not taken, nor will the Company take, directly or indirectly, any action designed to or that might be reasonably expected to cause or result in stabilization or manipulation of the price of the Common Shares, as applicable, or any other “reference security” (as defined in Rule 100 of Regulation M under the Exchange Act (“Regulation M”)) whether to facilitate the sale or resale of the Units, as applicable, or otherwise, and has taken no action which would directly or indirectly violate Regulation M.

Working Capital. To the Company’s knowledge and taking into account the available working capital and the net proceeds receivable by the Company following the sale of the Units, the Company has sufficient working capital for its present requirements that is for a period of at least 12 months from the date of the Prospectuses.

FINRA Matters. All of the information provided to the Underwriters or to counsel for the Underwriters by the Company and, to the knowledge of the Company, its officers and directors and the holders of any securities (debt or equity) or options to acquire any securities of the Company in connection with letters, filings or other supplemental information provided to FINRA pursuant to FINRA Conduct Rule 5110, 5121 or 5190 is true, complete and correct in all material aspects.

Environmental Laws. Except as set forth in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses:

each of the Company and the Material Subsidiaries is in compliance in all material respects with all applicable federal, provincial, state, municipal and local laws, statutes, ordinances, bylaws and regulations and orders, directives and decisions rendered by any ministry, department or administrative or regulatory agency, domestic or foreign (the “Environmental Laws”) relating to the protection of the environment, occupational health and safety or the processing, use, treatment, storage, disposal, discharge, transport or handling of any pollutants, contaminants, chemicals or industrial, toxic or hazardous wastes or substance, including any uranium or derivatives thereof (the “Hazardous Substances”), except where such non-compliance would not have a Material Adverse Effect, either individually or in the aggregate;

each of the Company and the Material Subsidiaries has obtained all licenses, permits, approvals, consents, certificates, registrations and other authorizations under all applicable Environmental Laws (the “Environmental Permits”) necessary as at the date hereof for the operation of the businesses carried on or proposed to be commenced by the Company and the Material Subsidiaries and each Environmental Permit is valid, subsisting and in good standing and to the knowledge of the Company neither the Company nor the Material Subsidiaries is in default or breach of any Environmental Permit which would have a Material Adverse Effect, and no proceeding is pending or, to the knowledge of the Company or the Material Subsidiaries, threatened, to revoke or limit any Environmental Permit;

neither the Company nor the Material Subsidiaries has used, except in compliance with all Environmental Laws and Environmental Permits, and other than as may be incidental to mineral resource exploration, development, mining, recovery, processing or milling, any property or facility which it owns or leases or previously owned or leased, to generate, manufacture, process, distribute, use, treat, store, dispose of, transport or handle any Hazardous Substance; and

neither the Company nor the Material Subsidiaries (including, if applicable, any predecessor companies) has received any notice of, or been prosecuted for an offence alleging, non-compliance with any Environmental Law that would have a Material Adverse Effect, and neither the Company nor the Material Subsidiaries (including, if applicable, any predecessor companies) has settled any allegation of non-compliance that would have a Material Adverse Effect short of prosecution. There are no orders or directions relating to environmental matters requiring any material work, repairs, construction or capital expenditures to be made with respect to any of the assets of the Company or the Material Subsidiaries, nor has the Company or the Material Subsidiaries received notice of any of the same; and (v) neither the Company nor the Material Subsidiaries has received any notice wherein it is alleged or stated that the Company or the Material Subsidiaries is potentially responsible for a federal, provincial, state, municipal or local clean-up site or corrective action under any Environmental Laws. Neither the Company nor the Material Subsidiaries has received any request for information in connection with any federal, state, municipal or local inquiries as to disposal sites.

Finder’s Fee’s. Neither the Company nor any of the Material Subsidiaries has incurred any liability for any finder’s fees, brokerage commissions or similar payments in connection with the transactions herein contemplated, except as may otherwise exist with respect to the Underwriters pursuant to this Agreement.

Broker/Dealer Relationships. Neither the Company nor any of the Material Subsidiaries or any related entities (i) is required to register as a “broker” or “dealer” in accordance with the provisions of the Exchange Act or (ii) directly or indirectly through one or more intermediaries, controls or is a “person associated with a member” or “associated person of a member” (within the meaning set forth in the FINRA Manual).

Dividend Restrictions. Except as may be restricted by Applicable Law, and except for solvency restrictions applicable to Uranerz Energy Corporation contained in the instruments evidencing the indebtedness owed by Uranerz Energy Corporation to the State of Wyoming, no Material Subsidiary is prohibited or restricted, directly or indirectly, from paying dividends to the Company, or from making any other distribution with respect to such Material Subsidiaries’ equity securities or from repaying to the Company or any other Material Subsidiaries any amounts that may from time to time become due under any loans or advances to such Material Subsidiaries from the Company or from transferring any property or assets to the Company or to any other Material Subsidiaries.

No Improper Practices. (i) Neither the Company nor, to the Company’s knowledge, the Material Subsidiaries, nor to the Company’s knowledge, any of their respective directors or officers has, in the past five years, made any unlawful contributions to any candidate for any political office (or failed fully to disclose any contribution in violation of Applicable Law) or made any contribution or other payment to any official of, or candidate for, any federal, state, provincial, municipal, or foreign office or other person charged with similar public or quasi-public duty in violation of any Applicable Law or of the character required to be disclosed in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses; (ii) no relationship, direct or indirect, exists between or among the Company or, to the Company’s knowledge, any Material Subsidiary or any affiliate of any of them, on the one hand, and the directors, officers and shareholders of the Company or, to the Company’s knowledge, any Material Subsidiary, on the other hand, that is required by the Securities Act or Canadian Securities Laws to be described in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses that is not so described; (iii) no relationship, direct or indirect, exists between or among the Company or any Material Subsidiary or any affiliate of them, on the one hand, and the directors, officers, or shareholders of the Company or, to the Company’s knowledge, any Material Subsidiary, on the other hand, that is required by the rules of FINRA (or Canadian equivalent thereof) to be described in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses that is not so described; (iv) except as described in the Prospectuses, there are no material outstanding loans or advances or material guarantees of indebtedness by the Company or, to the Company’s knowledge, any Material Subsidiary to or for the benefit of any of their respective officers or directors or any of the members of the families of any of them; and (v) the Company has not offered, or caused any placement agent to offer, Common Shares or to make any payment of funds to any person with the intent to influence unlawfully (A) a customer or supplier of the Company or any Material Subsidiary to alter the customer’s or supplier’s level or type of business with the Company or any Material Subsidiary or (B) a trade journalist or publication to write or publish favorable information about the Company or any Material Subsidiary or any of their respective products or services, and, (vi) neither the Company nor any Material Subsidiary nor, to the Company’s knowledge, any director, officer, employee or agent of the Company or any Material Subsidiary has made any payment of funds of the Company or any Material Subsidiary or received or retained any funds in violation of any Applicable Law (including, without limitation, the Foreign Corrupt Practices Act of 1977 and the Corruption of Foreign Public Officials Act (Canada)).

Operations. The operations of the Company and the Material Subsidiaries are and have been conducted at all times in compliance with applicable financial record keeping and reporting requirements of the Proceeds of Crime (Money Laundering) and Terrorist Financing Act (Canada), the Corruption of Foreign Public Officials Act (Canada) and applicable rules and regulations thereunder, and the money laundering statutes of all applicable jurisdictions, the rules and regulations thereunder and any related or similar applicable rules, regulations or guidelines, issued, administered or enforced by any Governmental Authority (collectively, the “Money Laundering Laws”); and no action, suit or proceeding by or before any court or Governmental Authority involving the Company or any of the Material Subsidiaries with respect to the Money Laundering Laws is pending or, to the knowledge of the Company, threatened.

Sanctions. (i) The Company represents that, neither the Company nor any of the Material Subsidiaries (collectively, the “Entity”) nor, to the Company’s knowledge, any director, officer, employee, agent, affiliate or representative of the Company, is a government, individual, or entity (in this paragraph (nnn), “Member”) that is, or is owned or controlled by a Member that is:

the subject of any sanctions administered or enforced by the U.S. Department of Treasury’s Office of Foreign Assets Control, the United Nations Security Council, the European Union, Her Majesty’s Treasury, the Office of the Superintendent of Financial Institutions (Canada), or pursuant to the Special Economic Measures Act (Canada) or other relevant sanctions authority or Applicable Law (collectively, “Sanctions”), nor

located, organized or resident in a country or territory that is the subject of Sanctions (including, without limitation, Burma/Myanmar, Cuba, Iran, Libya, North Korea, Russia, Sudan, Syria, Ukraine and Zimbabwe).

The Company represents and covenants that it will not, directly or indirectly, use the proceeds of the offering, or lend, contribute or otherwise make available such proceeds to any subsidiary, joint venture partner or other Member:

to fund or facilitate any activities or business of or with any Member or in any country or territory that, at the time of such funding or facilitation, is the subject of Sanctions; or

in any other manner that will result in a violation of Sanctions by any Member (including any Member participating in the offering, whether as underwriter, advisor, investor or otherwise).

The Company represents and covenants that, except as detailed in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, for the past 5 years, it has not knowingly engaged in, is not now knowingly engaged in, and will not engage in, any dealings or transactions with any Member, or in any country or territory, that at the time of the dealing or transaction is or was the subject of Sanctions.

Certification of Disclosure. There has been no failure on the part of the Company or any of the Company’s directors or officers, in their capacities as such, to comply in all material respects with any applicable provisions of the Sarbanes-Oxley Act, National Instrument 52-109 (Certification of Disclosure in Issuers’ Annual and Interim Filings) (“NI 52-109”) and the rules and regulations promulgated thereunder. Each of the principal executive officer and the principal financial officer of the Company (or each former principal executive officer of the Company and each former principal financial officer of the Company as applicable) and each certifying officer of the Company (or each former certifying officer of the Company and each former certifying officer of the Company as applicable) has made all certifications required by Sections 302 and 906 of the Sarbanes-Oxley Act with respect to all reports, schedules, forms, statements and other documents required to be filed by it or furnished by it to the SEC and as required to be made and filed by NI 52- 109. For purposes of the preceding sentence, “principal executive officer” and “principal financial officer” shall have the meanings given to such terms in the Sarbanes-Oxley Act and “certifying officer” shall have the meanings given to such term in NI 52-109.

Filings. Since January 1, 2014, the Company has filed all documents or information required to be filed by it under Canadian Securities Laws, U.S. Securities Laws, and the rules, regulations and policies of the Exchanges, except where the failure to file such documents or information will not have a Material Adverse Effect, either individually or in the aggregate; all material change reports, annual information forms, financial statements, management proxy circulars and other documents filed by or on behalf of the Company with the Exchanges, the SEC and the Canadian Commissions, as of its date, did not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances under which they were made, not misleading and did not contain a misrepresentation at the time at which it was filed; the Company has not filed any confidential material change report or any document requesting confidential treatment with any Governmental Authority that at the date hereof remains confidential.

Exchange Registration. The Common Shares are registered pursuant to Section 12(b) of the Exchange Act and are accepted for trading on the NYSE under the symbol “UUUU” and the TSX under the symbol “EFR,” and the Company has taken no action designed to terminate the registration of the Common Shares under the Exchange Act or delisting the Common Shares from either of the Exchanges, nor, except as disclosed in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, has the Company received any notification that the SEC, the Canadian Commissions or either of the Exchanges is contemplating terminating such registration or listing. Except as disclosed in the Registration Statement or included or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, the Company has complied in all material respects with the applicable requirements of the Exchanges for maintenance of inclusion of the Common Shares thereon. The Company has obtained all necessary consents, approvals, authorizations or orders of, or filing, notification or registration with, the Exchanges, the SEC and the Canadian Commissions, where applicable, required for the listing and trading of the Unit Shares, the Warrant Shares, the Additional Units and the Additional Warrant Shares, subject only to satisfying their standard listing and maintenance requirements and the Company has obtained all necessary consents, approvals, authorizations or orders of, or filing, notification or registration with, the TSX, and the Canadian Commissions, where applicable, required for the listing and trading of the Warrants and the Additional Warrants on the TSX, subject only to satisfying the TSX’s standard listing and maintenance requirements. The Company has no reason to believe that it will not in the foreseeable future continue to be in compliance with all such listing and maintenance requirements of each Exchange.

Passive Foreign Investment Company. The Company believes that it was not a Passive Foreign Investment Company (“PFIC”) within the meaning of Section 1297 of the Code, during the prior tax year ended on December 31, 2015, and based on current business plans and financial expectations, the Company expects that it will not be a PFIC for the current tax year and expects that it will not be a PFIC for the foreseeable future.

Delivery of Registration Statement, Time of Sale Prospectus and Prospectuses. To the extent not available on EDGAR as it relates to the Registration Statement, the Time of Sale Prospectus, the U.S. Prospectus and any supplements and amendments thereto, the Company shall furnish and deliver to the Underwriters, in such cities as the Underwriters may reasonably and lawfully request without charge, as soon as practicable after the Registration Statement becomes effective (as to the U.S. Prospectus) or after the filing thereof (as to the Canadian Prospectus), and during the period mentioned in Section 4(e) or Section 4(f) below, as many commercial copies, or originally signed versions, of the Time of Sale Prospectus, the Canadian Prospectus, the U.S. Prospectus and any supplements and amendments thereto or to the Registration Statement as the Co-Lead Underwriters on behalf of the Underwriters may reasonably request for the purposes contemplated by the Securities Act and the Canadian Securities Laws. As used herein, the term “Prospectus Delivery Period” means such period of time after the first date of the public offering of the Units and ending on the completion of the distribution of the offering of the Units, during which time a preliminary prospectus, preliminary prospectus supplement or a prospectus relating to the Units is required by applicable Canadian Securities Laws or U.S. Securities Laws to be delivered (or required to be delivered but for Rule 172 under the Securities Act) in connection with sales of the Units by any Underwriter or dealer.

Co-Lead Underwriters’ Review of Proposed Amendments and Supplements. Prior to amending or supplementing the Registration Statement, the Time of Sale Prospectus, the Canadian Prospectus or the U.S. Prospectus (including any amendment or supplement through incorporation by reference of any document), the Company shall furnish to the Co-Lead Underwriters for review, a reasonable amount of time prior to the proposed time of filing or use thereof, a copy of each such proposed amendment or supplement, and the Company shall not file or use any such proposed amendment or supplement without the Co-Lead Underwriters’ consent which shall not be unreasonably delayed, conditioned or withheld.

Free Writing Prospectuses. The Company shall furnish to the Co-Lead Underwriters for review, a reasonable amount of time prior to the proposed time of filing or use thereof, a copy of each proposed free writing prospectus or any amendment or supplement thereto to be prepared by or on behalf of, used by, or referred to by the Company and the Company shall not file, use or refer to any proposed free writing prospectus or any amendment or supplement thereto without the Co-Lead Underwriters’ consent which shall not be unreasonably delayed, conditioned or withheld. The Company shall furnish to each Underwriter, without charge, as many copies of any free writing prospectus prepared by or on behalf of, or used by, the Company as such Underwriter may reasonably request. If during the Prospectus Delivery Period there occurred or occurs an event or development as a result of which any free writing prospectus prepared by or on behalf of, used by, or referred to by the Company conflicted or would conflict with the information contained in the Registration Statement or included or would include an untrue statement of a material fact or, omitted or would omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances prevailing at that subsequent time, not misleading, the Company shall promptly amend or supplement such free writing prospectus to eliminate or correct such conflict or so that the statements in such free writing prospectus as so amended or supplemented will not include an untrue statement of a material fact or, omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances prevailing at such subsequent time, not misleading, as the case may be; provided, however, that prior to amending or supplementing any such free writing prospectus, the Company shall furnish to the Co-Lead Underwriters for review, a reasonable amount of time prior to the proposed time of filing or use thereof, a copy of such proposed amended or supplemented free writing prospectus and the Company shall not file, use or refer to any such amended or supplemented free writing prospectus without the Co-Lead Underwriters’ consent which shall not be unreasonably delayed conditioned or withheld.

Filing of Underwriter Free Writing Prospectuses. The Company shall not take any action that would result in an Underwriter or the Company being required to file with the SEC pursuant to Rule 433(d) under the Securities Act a free writing prospectus prepared by or on behalf of the Underwriter that the Underwriter otherwise would not have been required to file thereunder.

Amendments and Supplements to Time of Sale Prospectus. If any time prior to the First Closing Date (or Option Closing Date, in the case of Additional Units) any event shall occur or condition shall exist as a result of which the Time of Sale Prospectus, as amended or supplemented, would include an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances when delivered to a prospective purchaser, not misleading, or if, in the reasonable opinion of counsel for the Company or Underwriters, it is necessary to amend or supplement the Time of Sale Prospectus to comply with Applicable Law, including the Securities Act, the Company shall (subject to Section 4(b) and Section 4(c)) forthwith prepare, file with the SEC and furnish, at its own expense, to the Underwriters and to any dealer upon request, either amendments or supplements to the Time of Sale Prospectus so that the statements in the Time of Sale Prospectus as so amended or supplemented will not include an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances when delivered to a prospective purchaser, not misleading, or so that the Time of Sale Prospectus, as amended or supplemented, will comply with Applicable Law including the Securities Act and the Canadian Securities Laws.

Securities Act Compliance. The Company will prepare the Canadian Prospectus Supplement and the U.S. Prospectus Supplement in a form approved by the Co-Lead Underwriters and (i) will file the Canadian Prospectus Supplement with the Principal Regulator in accordance with the Shelf Procedures as soon as practicably possible, and in any event, not later than 4:00 p.m. on September 15, 2016, and (ii) will file the U.S. Prospectus Supplement with the SEC not later than the SEC’s close of business on the first business day following the day on which the filing of the Canadian Prospectus Supplement is made with the Principal Regulator. After the date of this Agreement, the Company shall promptly advise the Co-Lead Underwriters in writing (i) of the receipt of any comments of, or requests for additional or supplemental information or other communication from, any Canadian Commission or the SEC with respect to the Canadian Prospectus or the Registration Statement, (ii) of any request by any Canadian Commission to amend or supplement the Canadian Prospectus or for additional information or of any request by the SEC to amend the Registration Statement or to amend or supplement the U.S. Prospectus or for additional information, (iii) of the time and date of any filing of any post-effective amendment to the Registration Statement or any amendment or supplement to the Time of Sale Prospectus, any free writing prospectus or the Prospectuses, (iv) of the time and date that any post-effective amendment to the Registration Statement becomes effective, (v) of the issuance by the SEC or any Canadian Commission, as applicable, of any stop order suspending the effectiveness of the Registration Statement, the U.S. Prospectus or the Canadian Prospectus or any post-effective amendment thereto or any order directed at any document incorporated by reference in the Registration Statement, the U.S. Prospectus or the Canadian Prospectus or any amendment or supplement thereto or any order preventing or suspending the use of the Time of Sale Prospectus, any free writing prospectus, any marketing materials, the U.S. Prospectus or the Canadian Prospectus or any amendment or supplement thereto or any post-effective amendment to the Registration Statement, or the suspension of the qualification of the Units for sale in any jurisdiction, or of any proceedings to remove, suspend or terminate from listing or quotation the Common Shares and the Units from the TSX or NYSE, or of the threatening or initiation of any proceedings for any of such purposes, and (vi) of the issuance by any Governmental Authority of any order having the effect of ceasing or suspending the distribution of the Units, or of the institution or, to the knowledge of the Company, threatening of any proceedings for any such purpose. If the SEC or any Canadian Commission shall enter any such stop order at any time, the Company will use best efforts to obtain the lifting of such order at the earliest possible moment.

Amendments and Supplements to the Prospectuses and Other Securities Act Matters. The Company will comply with the U.S. Securities Laws and the Canadian Securities Laws so as to permit the completion of the distribution of the Units during the Prospectus Delivery Period as contemplated in this Agreement and the Prospectuses. If any event shall occur or condition exist as a result of which it is necessary to amend or supplement the Prospectuses so that the Prospectuses do not include a misrepresentation or an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances when the U.S. Prospectus or the Canadian Prospectus is delivered to a purchaser, not misleading, or if during the Prospectus Delivery Period in the reasonable opinion of the Company, Co-Lead Underwriters or counsel for the Company or Underwriters it is otherwise necessary to amend or supplement the Prospectuses to comply with U.S. Securities Laws or Canadian Securities Laws, the Company agrees (subject to Section 4(b) and Section 4(c)) to promptly prepare, file with the SEC and the Canadian Commissions and furnish at its own expense to the Underwriters and to dealers, amendments or supplements to the Prospectuses so that the statements in the Prospectuses as so amended or supplemented will not include a misrepresentation or an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances when the U.S. Prospectus or the Canadian Prospectus is delivered to a purchaser, not be misleading or so that the Prospectuses, as amended or supplemented, will comply with the U.S. Securities Laws and the Canadian Securities Laws, as applicable. Neither the Co-Lead Underwriters’ consent to, nor delivery of, any such amendment or supplement shall constitute a waiver of any of the Company’s obligations under Section 4(b) or Section 4(c).

Lock-Up Agreements. The Company shall use its commercially reasonable efforts to cause each of the Company’s directors and officers and each of the other persons listed on Exhibit “A” to execute and deliver to the Co-Lead Underwriters a lock-up agreement in the form of Exhibit “B” hereto on or before the First Closing Date.

Stock Exchange Listing. The Company shall use its commercially reasonable best efforts to ensure that the Unit Shares, Warrant Shares, Additional Unit Shares, Additional Warrant Shares, Warrants and Additional Warrants are conditionally approved for listing and for trading on the TSX and the Unit Shares, Warrant Shares, Additional Unit Shares and Additional Warrant Shares approved for listing on NYSE subject in the case of the TSX to satisfaction by the Company of the conditions imposed by the TSX. Subject to satisfying the NYSE standard listing requirements, the Company shall use its commercially reasonable efforts to have the Warrants and the Additional Warrants approved for listing on the NYSE within 90 days from the date hereof.

Blue Sky Compliance. The Company shall cooperate with the Co-Lead Underwriters and counsel for the Underwriters to qualify or register the Units for sale under (or obtain exemptions from the application of) U.S. Securities Laws, Canadian Securities Laws, or other foreign laws of jurisdictions designated by the Co-Lead Underwriters, shall comply with such laws and shall continue such qualifications, registrations and exemptions in effect so long as required for the distribution of the Units. The Company shall not be required to qualify as a foreign corporation or to take any action that would subject it to general service of process in any jurisdiction in which it is not presently qualified or where it would be subject to taxation as a foreign corporation (except service of process with respect to the offering and sale of the Units). The Company will advise the Co-Lead Underwriters promptly of the suspension of the qualification or registration of (or any exemption relating to) the Units for offering, sale or trading in any jurisdiction or any initiation or threat of any proceeding for any such purpose, and in the event of the issuance of any order suspending such qualification, registration or exemption, the Company shall use its best efforts to obtain the withdrawal thereof at the earliest possible moment.

Use of Proceeds. The Company shall apply the net proceeds from the sale of the Units and the Additional Units sold by it in the manner described under the caption “Use of Proceeds” in the Time of Sale Prospectus.

Transfer/Warrant Agent. The Company shall maintain, at its expense, a registrar and transfer agent for the Unit Shares and the Additional Unit Shares and engage and maintain, at its expense, a warrant agent for the Warrants and Additional Warrants.

Earnings Statement. As soon as practicable, but in any event no later than 18 months after the date of this Agreement, the Company will make generally available to its security holders and to the Co-Lead Underwriters an earnings statement (which need not be audited) covering a period of at least 12 months beginning with the first fiscal quarter of the Company commencing after the date of this Agreement which shall satisfy the provisions of Section 11(a) of the Securities Act and the rules and regulations of the SEC thereunder.

Periodic Reporting Obligations. During the period when the U.S. Prospectus is required to be delivered under the Securities Act, the Company shall file, on a timely basis, with the SEC and NYSE all reports and documents required to be filed under the Exchange Act.

Agreement Not to Issue, Offer or Sell Additional Shares. During the period commencing on and including the date hereof and ending on and including the 90^th day following the First Closing Date (as the same may be extended as described below, the “Lock-up Period”), the Company will not, without the prior written consent of the Co-Lead Underwriters (which consent will not be unreasonably withheld), (i) issue, offer, sell (including, without limitation, any short sale), contract or agree to sell, hypothecate, pledge, grant any option to purchase or otherwise dispose of or agree to dispose of or transfer, directly or indirectly, or establish or increase a “put equivalent position” or liquidate or decrease a “call equivalent position” within the meaning of Section 16 of the Exchange Act and the rules and regulations of the SEC promulgated thereunder, with respect to, any Common Shares, or any securities convertible into or exchangeable or exercisable for, or warrants or other rights to purchase, the foregoing, (ii) other than a registration Form on S-8 subject to the restrictions set forth below, file or cause to become effective a registration statement under the Securities Act, or to file a prospectus under the Canadian Securities Laws, relating to the offer and sale of any Common Shares or securities convertible into or exercisable or exchangeable for Common Shares or other rights to purchase Common Shares or any other securities of the Company that are substantially similar to Common Shares, or any securities convertible into or exchangeable or exercisable for, or any warrants or other rights to purchase, the foregoing, (iii) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of Common Shares or any other securities of the Company that are substantially similar to Common Shares, or any securities convertible into or exchangeable or exercisable for, or any warrants or other rights to purchase, the foregoing, whether any such transaction is to be settled by delivery of Common Shares or such other securities, in cash or otherwise or (iv) publicly announce an intention to effect any transaction specified in clause (i), (ii) or (iii), except, in each case, for (A) the registration of the offer and sale of the Units under the Securities Act, the filing of each Applicable Prospectus under the Canadian Securities Laws relating to the sale of the Units and the sales of the Units to the Underwriters pursuant to this Agreement, (B) issuances of Common Shares upon the exercise of options or restricted stock units issued under the Company’s equity compensation plans, (C) the issuance of stock options or restricted stock units and the issuance of Common Shares pursuant to the Company’s equity compensation plans, (D) the issuance of Common Shares pursuant to the exercise of warrants outstanding as of the date hereof, or (E) the issuance of Common Shares in connection with arm’s length acquisitions, mergers, consolidations or amalgamations with any company or companies (including, but not limited to, in connection with the acquisitions contemplated in the Prospectuses).

Investment Limitation. The Company shall not invest or otherwise use the proceeds received by the Company from its sale of the Units and Additional Units in such a manner as would require the Company or any of its Material Subsidiaries to register as an investment company under the Investment Company Act.

No Stabilization or Manipulation; Compliance with Regulation M. The Company will not take, directly or indirectly, any action designed to or that might be reasonably expected to cause or result in stabilization or manipulation of the price of the Common Shares or any other reference security, whether to facilitate the sale or resale of the Units or otherwise, and the Company will, and shall cause each of its affiliates to, comply with all applicable provisions of Regulation M. If the limitations of Rule 102 of Regulation M (“Rule 102”) do not apply with respect to the Units or any other reference security pursuant to any exception set forth in Section (d) of Rule 102, then promptly upon notice from the Co-Lead Underwriters (or, if later, at the time stated in the notice), the Company will, and shall cause each of its affiliates to, comply with Rule 102 as though such exception were not available but the other provisions of Rule 102 (as interpreted by the SEC) did apply.

Press Releases/Announcements. Prior to the First Closing Date or the Option Closing Date, as the case may be, the Company shall not, without the Co- Lead Underwriters’ prior written consent, which shall not be unreasonably delayed, conditioned or withheld, issue any press releases or other communications directly or indirectly and shall not hold any press conferences with respect to the Company or any Material Subsidiaries, the financial condition, results of operations, business, properties, assets, or liabilities of the Company or any Material Subsidiaries, or with respect to the offering of the Units. Notwithstanding the foregoing, nothing contained in this subsection shall prevent the Company from issuing a press release forthwith in the event that the Company’s counsel advises that it is necessary in order to comply with Applicable Law or the rules or requirements of the TSX or NYSE, or from issuing a press release or holding an analyst call in the normal course in connection with the release of financial results.

the preparation and filing of the Registration Statement (including the Financial Statements, exhibits, schedules, consents and certificates of experts), the Time of Sale Prospectus, the Prospectuses, each free writing prospectus prepared by or on behalf of, used by, or referred to by the Company and any amendments or supplements thereto, including the printing and furnishing of copies of each thereof to the Underwriters and to dealers (including costs of mailing and shipment);

the registration, issue, sale and delivery of the Units, including any stock or transfer taxes and stamp or similar duties payable upon the sale, issuance or delivery of the Units to the Underwriters;

the producing, word processing and/or printing of this Agreement, any agreement among Underwriters, any dealer agreements, any powers of attorney and any closing documents (including compilations thereof) and the reproduction and/or printing and furnishing of copies of each thereof to the Underwriters and to dealers (including costs of mailing and shipment);

all filing fees, attorneys’ fees and expenses incurred by the Company in connection with qualifying or registering (or obtaining exemptions from the qualification or registration of) all or any part of the Units for offer and sale under the U.S. Securities Laws or Canadian Securities Laws or any other foreign laws, and, if reasonably requested by the Co-Lead Underwriters, preparing, printing and furnishing copies of any blue sky surveys or legal investment surveys to the Underwriters and to dealers, or other memorandum and any supplements thereto, advising the Underwriters of such qualifications, registrations and exemptions;

all fees and expenses of the Company’s counsel, independent public or certified public accountants and other advisors of the Company;

the reasonable legal fees and filing fees and other disbursements of Canadian and U.S. counsel for the Underwriters;

the fees and expenses associated with the listing of the Unit Shares, Warrant Shares, Additional Unit Shares, Additional Warrant Shares, the Warrants and the Additional Warrants;

any filing for review of the public offering of the Units by FINRA;

the fees and disbursements of any transfer agent or registrar for the Units;

the reasonable costs and expenses of the Underwriters relating to presentations or meetings undertaken in connection with the marketing of the offering and sale of the Units to prospective investors and the Underwriters’ sales forces (including reasonable travel and related expenses);

the costs and expenses of qualifying the Unit Shares, the Warrant Shares, the Additional Unit Shares and the Additional Warrant Shares for inclusion in the book-entry settlement systems of DTC and CDS; and

the performance of the Company’s other obligations hereunder,

Opinion and 10b-5 Statement of United States Counsel for the Company. On the First Closing Date and each Option Closing Date, the Underwriters and CF US shall have received an opinion and Rule 10b-5 negative assurance statement of Dorsey & Whitney LLP, and with regard to any United States subsidiary opinions from such counsel as the Company may designate, addressed to the Underwriters and CF US, and dated the First Closing Date and each Option Closing Date, as the case may be, in the form and substance as may be reasonably satisfactory to counsel for the Underwriters.

Canadian Securities Law Opinion. The Underwriters and CF US receiving a favourable legal opinion of Borden, Ladner & Gervais LLP, Canadian counsel to the Company, addressed to the Underwriters, CF US and counsel to the Underwriters, dated as of the First Closing Date and each Option Closing Date, as the case may be, as to the qualification of the Units for sale to the public and as to other matters governed by the laws of the Qualifying Jurisdictions, provided that Borden, Ladner & Gervais LLP shall be entitled to rely exclusively upon the opinions of local counsel as to matters governed by the laws of any Qualifying Jurisdictions in which it is not qualified to practice, in each case in a form acceptable in all reasonable respects to counsel to the Underwriters.

Accountants’ Comfort Letters. The Co-Lead Underwriters and CF US shall have received from KPMG LLP, independent public or certified public accountants for the Company, (i) letters dated, respectively, the date of the Prospectus Supplements, and addressed to the Underwriters and CF US and the board of directors of the Company, in form and substance reasonably satisfactory to the Co-Lead Underwriters, containing statements and information of the type ordinarily included in accountant’s “comfort letters” to underwriters which letters shall cover with respect to the Financial Statements, including without limitation, certain financial and accounting disclosures contained or incorporated by reference in the Time of Sale Prospectus and the Prospectuses, and (ii) confirming that they are independent public, certified public or chartered accountants as required by the Securities Act.

Bring-down Comfort Letters. On the First Closing Date and each Option Closing Date, the Co-Lead Underwriters and CF US shall have received from KPMG LLP, independent public or certified public accountants for the Company, a letter dated such date, and addressed to the Underwriters and the board of directors of the Company, in form and substance reasonably satisfactory to the Co-Lead Underwriters, to the effect that they reaffirm the statements made in the letters furnished by them pursuant to Section 6(c), except that the specified date referred to therein for the carrying out of procedures shall be no more than two (2) business days prior to the First Closing Date and each Option Closing Date, as the case may be.

Company Compliance with Prospectus and Registration Requirements; No Stop Order. For the period from and after effectiveness of this Agreement and prior to the First Closing Date and, with respect to the Additional Units, each Option Closing Date:

the U.S. Prospectus shall have been filed with the SEC in the manner and within the time period required by the Securities Act, and the Canadian Prospectus shall have been filed with the Canadian Commissions in each of the Qualifying Jurisdictions and in accordance with the Canadian Securities Laws, and a receipt obtained therefor;

no stop order suspending the effectiveness of the Registration Statement, or any post-effective amendment to the Registration Statement, shall be in effect and no proceedings for such purpose shall have been instituted or threatened by the SEC;

no order preventing or suspending the use of the Canadian Prospectus shall have been issued and no proceeding for that purpose shall have been initiated or threatened by any Canadian Commission or other securities regulatory authority in Canada;

no order, ruling, determination having the effect of suspending the issuance, sale, exercise or conversion or ceasing the trading of the Common Shares or securities convertible into Common Shares, or any other securities of the Company shall have been issued by any Governmental Authority in Canada or the United States and no proceedings for that purpose shall have been instituted or shall be pending or, to the knowledge of the Company, shall be contemplated or threatened by any such court, securities regulatory authority or stock exchange;

the Canadian Prospectus Supplement shall have been filed with the Canadian Commissions in each of the Qualifying Jurisdictions in accordance with the Shelf Procedures and a U.S. Prospectus Supplement shall have been filed with the SEC;

the Registration Statement and all amendments thereto shall not contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading; and (a) neither the Prospectuses nor any amendment or supplement thereto, shall include a misrepresentation or an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they are made, not misleading, (b) no Time of Sale Prospectus, and no amendment or supplement thereto, shall include an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they are made, not misleading and (c) none of the free writing prospectuses, if any, shall include an untrue statement of a material fact or, omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they are made, not misleading; and

all requests for additional information on the part of the SEC or any Canadian Commission shall have been complied with.

No Material Adverse Effect. For the period from the date of this Agreement and to and including the First Closing Date and, with respect to the Additional Units, each Option Closing Date, in the judgment of the Co-Lead Underwriters, there shall not have occurred any Material Adverse Effect.

Officers’ Certificate. On the First Closing Date and each Option Closing Date, the Underwriters and CF US shall have received a written certificate, addressed to the Underwriters and CF US, executed by the President and Chief Executive Officer of the Company and the Chief Financial Officer of the Company, in each case, in such capacity and not in his personal capacity, dated as of the First Closing Date and each Option Closing Date, as applicable, to the effect that the conditions set forth in Section 6(e) have been met, and further to the effect that:

the representations, warranties and covenants of the Company set forth in Section 3 of this Agreement are true and correct in all material respects with the same force and effect as though expressly made on and as of such First Closing Date and each Option Closing Date, as applicable, except that any representations and warranties qualified by materiality or “Material Adverse Effect” shall be true and correct in all respects;

as at the First Closing Date and each Option Closing Date, as applicable, no order, ruling or determination having the effect of ceasing or suspending trading in the Common Shares or any securities convertible into Common Shares has been issued and no proceedings for such purpose are pending or, to the best of the knowledge, information and belief of the person signing such certificate, are contemplated or threatened; and

the Company has complied with all the agreements hereunder and satisfied all the conditions on its part to be performed or satisfied hereunder at or prior to such First Closing Date and each Option Closing Date, as applicable.

Certificates of the Company. The Underwriters having received certificates dated the First Closing Date and each Option Closing Date, as applicable, addressed to the Underwriters and CF US, signed by the General Counsel and Corporate Secretary of the Company, in such capacity and not personally, in form and content satisfactory to the Underwriters, acting reasonably, with respect to:

the constating documents and by-laws of the Company;

the resolutions of the directors of the Company relevant to the distribution of the Units in each of the Qualifying Jurisdictions and in the United States, allotment, issue (or reservation for issue) and sale of the Units, the authorization of this Agreement, and the other agreements and transactions contemplated by this Agreement; and

the incumbency and signatures of signing officers of the Company.

Good Standing. The Co-Lead Underwriters shall have received on and as of the day prior to the First Closing Date and each Option Closing Date, as applicable, satisfactory evidence of the good standing of the Company and its Material Subsidiaries in their respective jurisdictions of organization, in each case in writing or any standard form of telecommunication from the appropriate Governmental Authorities of such jurisdictions.

[Intentionally Omitted.]

Listing. The Unit Shares, Warrant Shares, Additional Unit Shares and Additional Warrant Shares shall have been approved for listing on the NYSE, subject only to notice of issuance at or prior to the First Closing Date. The Unit Shares, Warrant Shares, Additional Unit Shares, Additional Warrant Shares, Warrants and Additional Warrants shall have been approved for listing on the TSX, subject to the fulfillment of the usual post-closing requirements.

Warrant Indenture. The Warrant Indenture shall have been executed and delivered by the Company and CST Trust Company and American Stock Transfer & Trust Company, LLC in form and substance satisfactory to the Co-Lead Underwriters and their counsel, acting reasonably.

Lock-Up Agreements from Directors and Officers of the Company. On or prior to the First Closing Date, the Company shall have furnished to the Co- Lead Underwriters an agreement in the form of Exhibit “B” hereto from each of the persons listed on Exhibit “A” hereto, and such agreement shall be in full force and effect on the First Closing Date and each Option Closing Date.

Certificate of Transfer Agent. The Company having delivered to the Underwriters on the First Closing Date and on the Option Closing Date, as the case may be, a certificate of CST Trust Company, Inc. as registrar and transfer agent of the Common Shares, which certifies the number of Common Shares issued and outstanding on the date prior to the First Closing Date and each Option Closing Date, as applicable.

No Termination. The Underwriters shall not have previously terminated their obligations pursuant to Section 8 of this Agreement.

Additional Documents. On or before the First Closing Date and each Option Closing Date, as applicable, the Co-Lead Underwriters and counsel for the Underwriters shall have received such information and other customary Closing documents as they may reasonably request for the purposes of enabling them to pass upon the issuance and sale of the Units as contemplated herein, or in order to evidence the accuracy of any of the representations and warranties, or the satisfaction of any of the conditions or agreements, herein contained; and all proceedings taken by the Company in connection with the issuance and sale of the Units as contemplated herein and in connection with the other transactions contemplated by this Agreement shall be reasonably satisfactory in form and substance to the Co- Lead Underwriters and counsel for the Underwriters.

Litigation. Any enquiry, action, suit, investigation or other proceeding, whether formal or informal, is commenced, announced or threatened or any order is made by any Governmental Authority in Canada, the United States or elsewhere, including, without limitation, the TSX or the NYSE, in relation to the Company or the Material Subsidiaries or the Company’s directors and officers in their capacity as such with the Company which, in the sole opinion of the Co-Lead Underwriters, acting reasonably, operates to prevent or restrict materially the distribution or trading of the Units or any other securities of the Company in any of the Qualifying Jurisdictions or the United States.

Financial-Out. Any change in the U.S., Canadian or international financial, political or economic conditions or the effect of which is such as to make it, in the judgment of the Co-Lead Underwriters, impractical to market or to enforce contracts for the sale of the Units, including without limitation, (i) if trading or quotation in any of the Company’s securities shall have been suspended or limited by the SEC, or by the NYSE or by any Canadian Commission or by the TSX, or (ii) trading in securities generally on any of the NYSE or the TSX shall have been suspended or limited, or minimum or maximum prices shall have been generally established on any of such stock exchanges by the SEC or FINRA, or (iii) the declaration of any banking moratorium by any Canadian, U.S. federal or New York authorities, or (iv) any major disruption of settlements of securities or payment or clearance services in the United States or Canada where the securities of the Company are listed.

Disaster Out. There should develop, occur or come into effect or existence any attack on, outbreak or escalation of hostilities or act of terrorism involving Canada or the United States, any declaration of war by the United States Congress, any other national or international calamity or emergency, or any governmental action, change of Applicable Law (or in the judicial interpretation thereof), if, in the judgment of the Co-Lead Underwriters, the effect of any such attack, outbreak, escalation, act, declaration, calamity, emergency or governmental action, or change is material and adverse such as to make it impractical or inadvisable to proceed with the offering of the Units or to enforce contracts for the sale of the Units on the First Closing Date or the relevant Option Closing Date, as the case may be, on the terms and in the manner contemplated by this Agreement, the Time of Sale Prospectus and each of the Applicable Prospectuses or might be expected to have a significant adverse effect on the state of financial markets in Canada or the United States or the business, operations, management or capital of the Company or the market price or value of the Common Shares.

Material Adverse Effect. There should occur or be announced by the Company and its Material Subsidiaries taken as a whole, any Material Adverse Effect or a change in any material fact, or there should be discovered any previously undisclosed material fact (other than a material fact related solely to the Underwriters or any of their affiliates) required to be disclosed in any Applicable Prospectus, which results, or in the sole judgment of the Co-Lead Underwriters, is reasonably expected to result, in purchasers of a material number of Units exercising their right under applicable legislation to withdraw from their purchase of the Units or, in the sole judgment of the Co- Lead Underwriters, has or may be expected to have a significant adverse effect on the market price or value of the Units and makes it impractical or inadvisable to market the Units.

any information or statement contained in the Registration Statement, the Prospectuses, any issuer free writing prospectus or any Supplementary Material related thereto, or in any certificate or other document of the Company or of any officer of the Company or any of its Material Subsidiaries delivered hereunder or pursuant hereto which contains or is alleged to contain a misrepresentation;

any omission or alleged omission to state in the Registration Statement, the Prospectuses, any issuer free writing prospectus, any marketing materials or any Supplementary Material related thereto, or any certificate or other document of the Company or any officer of the Company or any of the Material Subsidiaries delivered hereunder or pursuant hereto any fact, whether material or not required to be stated therein or necessary to make any statement therein not misleading in light of the circumstances under which it was made;

any order made or any inquiry, investigation or proceedings commenced or threatened by any securities commission, stock exchange or other Governmental Authority based upon any actual or alleged untrue statement, omission or misrepresentation in the Prospectuses, the Registration Statement, any issuer free writing prospectus, any marketing materials or any Supplementary Material or based upon any actual or alleged failure to comply with Canadian Securities Laws or U.S. Securities Laws, preventing or restricting the trading in of the Firm Shares, Warrant Shares, Additional Unit Shares or Additional Warrant Shares or the distribution of the Units or any other securities of the Company;

the non-compliance or alleged non-compliance by the Company with any requirement of Canadian Securities Laws or U.S. Securities laws in any of the Qualifying Jurisdictions or in the United States or any state therein in connection with the transactions herein contemplated including the Company’s non-compliance or alleged non-compliance with any statutory requirement to make any document available for inspection; or

any breach of any representation or warranty of the Company contained herein or in any certificate or other document of the Company or of any officers of the Company or any of the Material Subsidiaries delivered hereunder or pursuant hereto or the failure of the Company to comply with any of its obligations hereunder,

the Indemnifying Party fails to assume the defence of such Claim on behalf of the Indemnified Party within five (5) business days of receiving notice thereof or, having assumed such defence, has failed to engage counsel promptly or who is acceptable to the Indemnified Parties, or has failed to pursue it diligently;

the Indemnifying Party and the Indemnified Party shall have mutually agreed to the retention of the other counsel; or

the named parties to the Claim (including any added, third parties or interpleaded parties) include the Indemnifying Party, and the Indemnifying Parties has been advised by counsel (including internal counsel) that there are legal defences available to such Indemnified Party that are different or in addition to those available to the Indemnifying Party, that representation of the Indemnified Party by counsel for the Indemnifying Party is inappropriate as a result of the potential or actual conflicting interests of those represented, or where in such Indemnified Party’s reasonable judgment, the Claim gives rise to a conflict of interest between the Indemnifying Party and such Indemnified Party;in each of cases Section 10(4)(a), Section 10(4)(b) and Section 10(4)(c), the Indemnifying Party will not have the right to assume the defence of the suit on behalf of such Indemnified Party, but the Indemnifying Party will be liable to pay the fees and expenses of separate counsel for all Indemnified Parties and, in addition, of local counsel in each applicable jurisdiction. Notwithstanding the foregoing, no settlement may be made by an Indemnified Party without the prior written consent of the Indemnifying Party, which consent will not be unreasonably withheld, conditioned or delayed.

the portion of the full amount of the loss or liability giving rise to such contribution for which the Underwriters are responsible, as determined above; and

the amount of the aggregate fee actually received by the Underwriters from the Indemnifying Party hereunder, provided that no individual Underwriter shall be required to contribute more than the fee actually received by such Underwriter.

If to the Underwriters and/or CF US:

Opinion dated October 16, 2013 in respect of the Arizona Strip Mines.

Opinions dated July 23, 2012 and July 24, 2012 in respect of the Colorado Plateau Mines.

Opinions dated July 24, 2012 in respect of the Daneros Mine.

Opinion dated June 7, 2013 in respect of the Gas Hills Project.

Opinions dated July 24, 2012 in respect of the Henry Mountains Complex.

Opinion dated June 7, 2013 in respect of the Roca Honda Project.

Opinion dated July 24, 2012 in respect of the Sage Plain Project.

Opinion dated July 24, 2012 in respect of the Sheep Mountain Project.

Opinion dated October 23, 2013 in respect of the White Mesa Mill.

Opinion dated July 24, 2012 in respect of the La Sal Project.

Opinion dated May 31, 2013 in respect of Juniper Ridge.

Opinion dated July 23, 2012 in respect of the Whirlwind Mine.

“Limited Title Opinion, Hank Project, MB1 et al. Mining Claims (WMC278641 et al.), Campbell County, Wyoming” – By Brown, Drew & Massey, LLP dated October 16, 2009

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“First Supplemental Limited Title Opinion, Hank Project, MB1 et. al. Mining Claims (WMC278641 et. al.), Campbell County, Wyoming” – by Brown, Drew & Massey, LLP dated November 29, 2010

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“Second Supplemental Limited Title Opinion, Hank Project, MB1 et. al. Mining Claims (WMC278641 et. al.), Campbell County, Wyoming” – by Brown, Drew & Massey, LLP dated December 3, 2012

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“Third Supplemental Limited Title Opinion, Hank Project, MB1 et. al. Mining Claims (WMC278641 et. al.), Campbell County, Wyoming” – by Brown, Drew & Massey, LLP dated February 1, 2013

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“Fourth Supplemental Limited Title Opinion, Hank Project, MB1 et. al. Mining Claims (WMC278641 et. al.), Campbell County, Wyoming” – by Brown, Drew & Massey, LLP dated August 19, 2013

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“Fifth Supplemental Limited Title Opinion, Hank Project, MB1 et. al. Mining Claims (WMC278641 et. al.), Campbell County, Wyoming” – by Brown, Drew & Massey, LLP dated September 5, 2013

“Limited Title Opinion, South Doughstick Project, WC 319 et al. Mining Claims (WMC 275263 et al.), Campbell and Johnson Counties, Wyoming” – by Brown, Drew & Massey, LLP dated October 27, 2009

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“First Supplemental Limited Title Opinion, South Doughstick Project, WC 319 et al. Mining Claims (WMC 275263 et al.), Campbell and Johnson Counties, Wyoming” – by Brown, Drew & Massey, LLP dated November 29, 2010

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“Second Supplemental Limited Title Opinion, South Doughstick Project, WC 319 et al. Mining Claims (WMC 275263 et al.), Campbell and Johnson Counties, Wyoming” – by Brown, Drew & Massey, LLP dated July 11, 2014

“Preliminary Title Opinion, North Jane Project, DS 3 through 18, 100, 101 Mining Claims (Lead File WMC 281326 et al.), Campbell County, Wyoming” – by Brown, Drew & Massey, LLP dated December 3, 2009

“Preliminary Title Opinion, North Jane Project, EB 40 et al. Mining Claims (Lead Filed WMC 14069 et at), Campbell County, Wyoming” – by Brown, Drew & Massey, LLP dated December 3, 2009

“Limited Title Opinion, Jane Dough Project, RK 453 et al. Mining Claims (WMC 274887 et al.), Campbell and Johnson Counties, Wyoming” – by Brown, Drew, Massey & Durham, LLP dated July 14, 2014

“Limited Title Opinion, South Doughstick Project, Pax Irvine Mineral Trust Fee Lease, Johnson County, Wyoming” – by Brown, Drew & Massey, LLP dated October 27, 2009

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“First Supplemental Limited Title Opinion, South Doughstick Project, Pax Irvine Mineral Trust Fee Lease, Johnson County, Wyoming” – by Brown, Drew & Massey, LLP dated November 29, 2010

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“Second Supplemental Limited Title Opinion, South Doughstick Project, Pax Irvine Mineral Trust Fee Lease, Johnson County, Wyoming” – by Brown, Drew, Massey & Durham, LLP dated July 11, 2014

“Limited Title Opinion, Jane Dough Project, Pax Irvine Mineral Trust, et al Fee Leases, Johnson and Campbell Counties, Wyoming” – by Brown, Drew, Massey & Durham, LLP dated July 14, 2014

Preliminary Title Opinion, North Jane Project, Nelroy LLC et al. Fee Leases, Campbell County, Wyoming” – by Brown, Drew & Massey, LLP dated November 25, 2009

“Limited Title Opinion, Nichols Ranch Project, EB 67 et al. Mining Claims (WMC 277010 et al.), Campbell and Johnson Counties, Wyoming” – by Brown, Drew & Massey, LLP dated October 27, 2009

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“First Supplemental Limited Title Opinion, Nichols Ranch Project, EB 67 et. al Mining Claims (WMC 277010 et al.), Campbell and Johnson Counties, Wyoming” – by Brown, Drew & Massey, LLP dated November 29, 2010

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“Second Supplemental Limited Title Opinion, Nichols Ranch Project, EB 67 et. al Mining Claims (WMC 277010 et al.), Campbell and Johnson Counties, Wyoming” – by Brown, Drew, Massey & Durham, LLP dated February 1, 2013

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“Third Supplemental Limited Title Opinion, Nichols Ranch Project, EB 67 et. al Mining Claims (WMC 277010 et al.), Campbell and Johnson Counties, Wyoming” – by Brown, Drew, Massey & Durham, LLP dated August 19, 2013

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“Fourth Supplemental Limited Title Opinion, Nichols Ranch Project, EB 67 et. al Mining Claims (WMC 277010 et al.), Campbell and Johnson Counties, Wyoming” – by Brown, Drew, Massey & Durham, LLP dated September 5, 2013

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“Fifth Supplemental Limited Title Opinion, Nichols Ranch Project, EB 67 et. al Mining Claims (WMC 277010 et al.), Campbell and Johnson Counties, Wyoming” – by Brown, Drew, Massey & Durham, LLP dated July 11, 2014

“Limited Title Opinion, Nichols Ranch Project, Betty Lou Payne et al Fee Leases, Johnson County, Wyoming” – by Brown, Drew & Massey, LLP dated October 16, 2009

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“First Supplemental Limited Title Opinion, Nichols Ranch Project, Betty Lou Payne et al Fee Leases, Johnson County, Wyoming” – by Brown, Drew & Massey, LLP dated November 29, 2010

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“Second Supplemental Limited Title Opinion, Nichols Ranch Project, Betty Lou Payne et al Fee Leases, Johnson County, Wyoming” – by Brown, Drew, Massey & Durham, LLP dated February 1, 2013

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“Third Supplemental Limited Title Opinion, Nichols Ranch Project, Betty Lou Payne et al Fee Leases, Johnson County, Wyoming” – by Brown, Drew, Massey & Durham, LLP dated August 19, 2013

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“Fourth Supplemental Limited Title Opinion, Nichols Ranch Project, Betty Lou Payne et al Fee Leases, Johnson County, Wyoming” – by Brown, Drew, Massey & Durham, LLP dated September 5, 2013

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“Fifth Supplemental Limited Title Opinion, Nichols Ranch Project, Betty Lou Payne et al Fee Leases, Johnson County, Wyoming” – by Brown, Drew, Massey & Durham, LLP dated July 11, 2014

“Preliminary Title Status Report – Grants Uranium District properties of Uranium Resources, Inc., McKinley County, New Mexico (Roca Honda Claims; Endy Claims; and Section 17 mineral estate) – by Fognani & Faught, PLLC dated June 18, 2015.

Mestena Ranch Limited Hard Minerals Ownership Research 195,501.03 acres; Brooks County and Jim Hogg County, Texas – by Dudley Land Company dated March 14, 2016