SUBSCRIPTION AGREEMENT

 Name and Address of Purchaser:

 Registration Instructions (if different):

 Name of Purchaser (please print)

 ____________________________________________

 Name

 By:

______________________________________
Authorized Signature

 ____________________________________________

 Account Reference, if applicable

 Director

 ____________________________________________

 Official Capacity or Title (please print)

 ____________________________________________

 ___________________________________________

 (Please print name of signatory if different from the name of the Purchaser printed above.)

 ____________________________________________

 Address, including province

 Purchaser’s Address, including province:

 Delivery Instructions (if different):

 ____________________________________________

 Name

 ____________________________________________

 Account Reference, if applicable

 telephone Number:

__________________________

 ____________________________________________

 Fax Number:

________________________________

 ____________________________________________

 E-mail Address:

_____________________________

 ____________________________________________

 Address, including province

 ____________________________________________

 Telephone Number

INSTRUCTIONS FOR PURCHASERS

The Purchaser must:  

(1)

Read this Subscription Agreement;

(2)

Complete and execute the face page of this Subscription Agreement;

(3)

Make payment for the Purchased Securities as required by section 2 of the Terms and Conditions; and

(4)

Deliver the signed documents as required by section 3 of the Terms and Conditions.

Per:

Date:

1.

Acceptance

1.1

The Issuer may accept or reject this Subscription Agreement in whole or in part at any time prior to the Closing Time (as defined herein). The Purchaser is aware that the offer made by this subscription is irrevocable (subject to satisfaction of the conditions precedent set out in section 3.3 below) and is subject to the approval for listing of the Purchased Securities by the Toronto Stock Exchange (“TSX”) and certain other conditions precedent set out below and will not become an agreement between the Purchaser and the Issuer until accepted by the Issuer signing in the space above.

1.2

If this Subscription Agreement is rejected in whole, the Purchaser understands that any funds, certified cheques and bank drafts delivered by the Purchaser to the Issuer representing the purchase price for Purchased Securities will be promptly returned to the Purchaser without interest and this Subscription Agreement shall thereafter be of no force or effect. If this Subscription Agreement is accepted only in part, the Purchaser understands that a cheque representing the portion of the purchase price for that portion of its subscription for Purchased Securities that is not accepted will be promptly delivered to the Purchaser without interest and this Subscription Agreement will continue in full force and effect to the extent the subscription was accepted.

2.

Payment

Paying Bank:

SWIFT Code:

Beneficiary Bank:

Transit # (USD):

Payment Details:

Account # (USD):

3.

Additional Deliveries and Conditions for Acceptance

3.1

The Purchaser shall complete, sign and return to the Issuer, two Business Days before the Closing Date:

(a)

one completed and executed copy of this Subscription Agreement; and

(b)

any other document required by applicable Securities Laws (as defined herein) which the Issuer requests.

3.2

Any obligation of the Issuer to sell the Purchased Securities to the Purchaser is subject to (a) performance by the Purchaser of its covenants under and in accordance with this Subscription Agreement; (b) the truth, at the time of acceptance of this Subscription Agreement by the Issuer and at the Closing Date, of the Purchaser’s representations and warranties in this Subscription Agreement; (c) the Issuer having obtained all required regulatory approvals to permit the completion of the offer, sale and issuance; and (d) the Purchaser executing and delivering all requisite documentation as required by this Subscription Agreement, and applicable Securities Laws with respect to the Purchased Securities.

3.3

Any obligation of the Purchaser to purchase the Purchased Securities is subject to (a) performance by the Issuer of its covenants under and in accordance with this Subscription Agreement; (b) the truth, at the time of acceptance of this Subscription Agreement by the Issuer and at the Closing Date, of the Issuer’s representations and warranties in this Subscription Agreement; (c) the Issuer having obtained all required regulatory approvals to permit the completion of the offer, sale and issuance of the Purchased Securities to the Purchaser; (d) in consideration of the payment of the applicable purchase price by the Purchaser, remittance to the Purchaser of certificates representing the Purchased Securities registered in accordance with the instructions of the Purchaser; and (e) delivery by the Issuer’s legal counsel of a legal opinion addressed to the Purchaser dated the Closing Date, in form and substance satisfactory to the Purchaser’s legal counsel, acting reasonably, which opinion shall address such matters as is customary for transactions of this nature.

3.4

The Purchaser understands that the information provided herein will be relied upon by the Issuer for purposes of determining the eligibility of the Purchaser to purchase the Purchased Securities. The Purchaser agrees to provide upon request any additional information that the Issuer determines necessary or appropriate in determining the Purchaser’s eligibility, acting reasonably.

3.5

For the purposes hereof, “Securities Laws” means the securities laws, regulations and rules, and the blanket rulings, policies, guidelines and written interpretations of and multilateral or national instruments adopted by the securities regulators of the Province of British Columbia and the rules and policies of the TSX.

4.

Closing

4.1

Closing of this subscription for the Purchased Securities (the “Closing”) will be completed at the offices of Blake, Cassels & Graydon LLP in Vancouver, British Columbia, at 10:00 am (Vancouver time), or such other place or time as the Issuer may determine (the “Closing Time”), on June 1, 2016, or such later date as the Issuer and Purchaser may agree upon (the “Closing Date”).

4.2

A single certificate endorsed by the Issuer representing the Purchased Securities subscribed for hereunder will be delivered to the address specified for delivery by the Purchaser, at the Closing Time upon satisfaction of the Conditions for Acceptance described in Section 3.

4.3

If the Closing does not occur, the Issuer shall return this Subscription Agreement and any funds, certified cheques and bank drafts delivered by the Purchaser to the Issuer representing the purchase price for Purchased Securities, without interest, to the Purchaser.

5.

Representations, Warranties and Covenants of the Purchaser

(a)

the Purchaser understands that the Purchased Securities subscribed for by the Purchaser hereunder form part of a larger offering (the “Offering”) of common shares by the Issuer upon and subject to the terms and conditions set forth herein, which Offering may, at the Issuer’s discretion, be consummated in one or more separate closings on separate dates;

(b)

the Purchaser acknowledges that

(i)

the Purchase is not a resident of the Province of British Columbia;

(ii)

no securities commission or similar regulatory authority has reviewed or passed on the merits of the Purchased Securities;

(iii)

there is no government or other insurance covering the Purchased Securities;

(iv)

there are risks associated with the purchase of the Purchased Securities and the Purchaser is knowledgeable or experienced in business and financial matters and is capable of evaluating the merits and risks of an investment in the Purchased Securities and is capable of bearing the economic risk of the investments;

(v)

there are restrictions on the Purchaser’s ability to resell the Purchased Securities and it is the responsibility of the Purchaser to find out what those restrictions are and to comply with them before selling the Purchased Securities;

(vi)

the Issuer has advised the Purchaser that the Issuer is relying on an exemption from the requirements to provide the Purchaser with a prospectus under the Securities Laws and, as a consequence of acquiring securities pursuant to this exemption, certain protections, rights and remedies provided by the Securities Laws, including, in most circumstances, statutory rights of rescission or damages, will not be available to the Purchaser;

(c)

if required by applicable Securities Laws or stock exchange rules, the Purchaser will execute, deliver and file or assist the Issuer in obtaining and filing such reports, undertakings and other documents relating to the purchase of the Purchased Securities by the Purchaser as may be required by any applicable Securities Laws, securities commission, stock exchange or other regulatory authority;

(d)

the Purchaser’s ability to directly or indirectly, sell, exchange, transfer, assign, encumber or otherwise dispose of the Purchased Securities is limited by, among other things, the Securities Laws. In particular, the Purchaser acknowledges having been informed that the Purchased Securities, are subject to resale restrictions under National Instrument 45-102 – Resale of Securities (“NI 45-102”) and may not be sold or otherwise disposed of in Canada for a period of four months and one day from the Closing Date, unless a statutory exemption is available or a discretionary order is obtained from the British Columbia Securities Commission allowing the earlier resale thereof, and may be subject to additional resale restrictions if such sale or other disposition would be a “control distribution”, as that term is defined in NI 45-102. As the Purchaser is not resident in Canada, additional resale restrictions may apply under the securities laws of the International Jurisdiction (as defined below);

(e)

the Purchaser is aware that the certificates evidencing the Purchased Securities (and any replacement certificate issued prior to the expiration of the applicable hold periods) will be endorsed with, or the ownership statement issued under a direct registration system or other electronic book-entry system will bear, legends setting out resale restrictions under applicable Securities Laws and securities laws of the United States in substantially the following form:

(f)

the Purchaser has the legal capacity and competence to execute this Subscription Agreement and to take all actions required pursuant hereto;

(g)

the Purchaser has not been created solely or primarily to use exemptions from the registration and prospectus exemptions under applicable Securities Laws and has a pre-existing purpose other than to use such exemptions;

(h)

the execution and delivery of this Subscription Agreement and the performance and compliance with the terms hereof will not result in any breach of, or be in conflict with, or constitute a default under, or create a state of facts which after notice or lapse of time or both would constitute a default under, any term or provision of any constating documents, by-laws or resolutions of the Purchaser or any indenture, contract, agreement (whether written or oral), instrument or other document to which the Purchaser is a party or subject, or any judgment, decree, order, statute, rule or regulation applicable to the Purchaser;

(i)

this Subscription Agreement has been duly and validly authorized, executed and delivered by, and upon acceptance by the Issuer constitutes a legal, valid, binding and enforceable obligation of, the Purchaser;

(j)

the Purchaser has not received, nor has the Purchaser requested, nor does the Purchaser have any need to receive, any prospectus, sales or advertising literature, offering memorandum or any other document (other than an annual or interim report, financial statements or any other document, other than an offering memorandum, the content of which is prescribed by statute or regulation) describing or purporting to describe the business and affairs of the Issuer which has been prepared for delivery to, and review by, prospective purchasers in order to assist them in making an investment decision in respect of the purchase of the Purchased Securities pursuant to the Offering;

(k)

the Purchaser has relied only upon publicly available information relating to the Issuer and not upon any verbal or written representation as to fact, and the Purchaser acknowledges that the Issuer has not made any written representations, warranties or covenants in respect of such publicly available information except as set forth in this Subscription Agreement. Without limiting the generality of the foregoing, except as may be provided herein, no person has made any written or oral representation to the Purchaser that any person will re-sell or re-purchase the Purchased Securities, or refund any of the Purchase Price of the Purchased Securities, or that the Purchased Securities will be listed on any exchange or quoted on any quotation and trade reporting system, or that application has been or will be made to list any such security on any exchange or quote the security on any quotation and trade reporting system, and no person has given any undertaking to the Purchaser relating to the future value or price of the Purchased Securities;

(l)

the Purchaser agrees that it is solely responsible for obtaining such legal, tax and other advice as the Purchaser considers appropriate in connection with the execution, delivery and performance of this Subscription Agreement and the transactions contemplated hereunder;

(m)

the Purchaser, whether acting as principal, trustee or agent, is neither (i) a “U.S. Person” (as defined in Rule 902(k) of Regulation S promulgated under the United States Securities Act of 1933, as amended (the “U.S. Securities Act”)), which definition includes, but is not limited to, an individual resident in the United States, an estate or trust of which any executor or administrator or trustee is a U.S. Person, and any partnership or corporation organized or incorporated under the laws of the United States, nor (ii) purchasing the Purchased Securities for the account of a U.S. Person or a person in the United States or for resale in the United States, and the Purchased Securities have not been offered to the Purchaser in the United States and the Purchaser was not in the United States when the order was placed or when this Subscription Agreement was executed and delivered;

(n)

the Purchaser will not offer or sell the Purchased Securities in the United States or to a U.S. Person, unless such securities are registered under the U.S. Securities Act and the laws of all applicable states of the United States or an exemption from such registration requirements is available, and further that the Purchaser will not resell the Purchased Securities, except in accordance with the provisions of applicable securities laws in Canada and the United States;

(o)

the Purchaser is entitled under applicable Securities Laws to purchase such Purchased Securities without the benefit of a prospectus qualified under such Securities Laws;

(p)

the Purchaser is resident in the jurisdiction outside of Canada and the United States set forth on the face page of this Subscription Agreement (the “International Jurisdiction”) and the decision to subscribe for the Purchased Securities was taken in such International Jurisdiction;

(q)

the Purchaser is purchasing the Purchased Securities with the benefit of the prospectus exemption provided by BC Instrument 72-503 – Distribution of Securities Outside British Columbia; and is either purchasing the Purchased Securities as principal for its own account, or is deemed to be purchasing the Purchased Securities as principal for its own account in accordance with applicable Securities Laws;

(r)

the Purchaser either (A) is not an “insider” of the Issuer or a “registrant” (each as defined under applicable Securities Laws) or (B) has identified itself to the Issuer as either an “insider” or a “registrant” (each as defined under applicable Securities Laws);

(s)

the delivery of this Subscription Agreement, the acceptance of it by the Issuer and the issuance of the Purchased Securities to the Purchaser complies with all laws applicable to the Purchaser, including the laws of such purchaser's jurisdiction of residence, and all other applicable laws, and will not cause the Issuer to become subject to, or require it to comply with, any disclosure, prospectus, filing or reporting requirements under any applicable laws of the International Jurisdiction;

(t)

the Purchaser is knowledgeable of, or has been independently advised as to, the application or jurisdiction of the securities laws of the International Jurisdiction which apply to the subscription;

(u)

the Purchaser is subscribing for the Purchased Securities pursuant to exemptions from the prospectus and registration requirements (or their equivalent) under the applicable securities laws of the International Jurisdiction or, if such is not applicable, the Purchaser is permitted to subscribe for the Purchased Securities under the applicable securities laws of the International Jurisdiction without the need to rely on an exemption;

(v)

the applicable securities laws do not require the Issuer to register any of the Purchased Securities, file a prospectus or similar document, or make any filings or disclosures or seek any approvals of any kind whatsoever from any regulatory authority of any kind whatsoever in the International Jurisdiction;

(w)

the Purchaser will not sell, transfer or dispose of the Purchased Securities except in accordance with all applicable laws, including applicable securities laws of Canada and the United States, and the Purchaser acknowledges that the Issuer shall have no obligation to register any such purported sale, transfer or disposition which violates applicable Canadian or United States securities laws;

(x)

if it decides to offer, sell or otherwise transfer, pledge or hypothecate all or any part of the Purchased Securities, it will not offer, sell or otherwise transfer any of such Purchased Securities directly or indirectly, except:

(i)

to the Issuer;

(ii)

outside the United States (other than in Canada) in a transaction meeting the requirements of Rule 904 of Regulation S under the U.S. Securities Act and in compliance with applicable local laws and regulations;

(iii)

other than sales made to purchasers in Canada, in accordance with the exemptions from registration under the U.S. Securities Act provided by (A) Rule 144 thereunder, if available or (B) Rule 144A, thereunder, if available, and, in both cases, in accordance with applicable state securities laws of the United States;

(iv)

the Purchased Securities are sold in a transaction that does not require registration under the U.S. Securities Act or any applicable state laws and regulations governing the offer and sale of securities; or in Canada in accordance with the Securities Laws, including the applicable hold period; and

(y)

the funds representing the aggregate Purchase Price for the Purchased Securities which will be advanced by the Purchaser hereunder will not represent proceeds of crime for the purposes of the Proceeds of Crime (Money Laundering) and Terrorist Financing Act (Canada) and the Purchaser acknowledges that the Issuer may in the future be required by law to disclose the Purchaser’s name and other information relating to this Subscription Agreement and the Purchaser’s subscription hereunder, on a confidential basis, pursuant to such Act. To the best of its knowledge: (a) none of the subscription funds to be provided by the Purchaser (i) have been or will be derived from or related to any activity that is deemed criminal under the laws of Canada, the United States, or any other jurisdiction, or (ii) are being tendered on behalf of a person or entity who has not been identified to the Purchaser; and (b) the Purchaser shall promptly notify the Issuer if the Purchaser discovers that any of such representations ceases to be true, and to provide the Issuer with appropriate information in connection therewith; and

(z)

the Purchaser is aware that (i) the Issuer may complete additional financings in the future in order to develop the Issuer’s business and to fund its ongoing development, (ii) there is no assurance that such financings will be available and, if available, on reasonable terms, (iii) any such future financings may have a dilutive effect on the Issuer’s securityholders, including the Purchaser, and (iv) if such future financings are not available, the Issuer may be unable to fund its on-going development and the lack of capital resources may result in the failure of the Issuer’s business.

6.

Reliance Upon Representations, Warranties and Covenants by Issuer

7.

Representations, Warranties and Covenants of the Issuer

(a)

the Issuer and its subsidiary are each corporations incorporated, validly subsisting and in good standing under the laws of the jurisdictions in which they are incorporated and have all the requisite corporate power, authority and capacity to carry on their business as now conducted and to own or lease their properties and assets;

(b)

the Issuer has all necessary corporate power, authority and capacity to enter into and carry out its obligations under this Subscription Agreement and all other agreements and instruments to be executed by the Purchaser as contemplated by this Subscription Agreement and has taken all necessary corporate action in respect thereof;

(c)

the execution, delivery and performance by the Issuer of this Subscription Agreement and such other agreements and instruments and the consummation of the transactions contemplated by this Subscription Agreement and such other agreements and instruments have been duly and validly authorized by the Issuer;

(d)

the authorized share capital of the Issuer consists of an unlimited number of common shares, of which 9,925,256 were issued and outstanding as at May 17, 2016, and all issued common shares have been validly issued and are outstanding as fully paid and non-assessable;

(e)

as of May 17, 2016, there were no outstanding securities, notes or instruments convertible into or exercisable for common shares other equity interests of the Issuer, other than 1,393,211 incentive stock options of the Issuer, 231,016 restricted share units of the Issuer, 86,918 deferred share units of the Issuer and 86,848,002 common share purchase warrants exercisable to purchase up to 5,049,445 common shares of the Issuer, provided however, that 86,103,744 of such warrants, exercisable to purchase 4,305,187 common shares, cannot be exercised pursuant to their terms so long as the exercise price is above the current market price of the common shares;

(f)

all securities of the Issuer have been issued in all material respects in accordance with the provisions of all applicable securities laws and applicable corporate laws;

(g)

the Issuer has complied with and will fully comply with the requirements of applicable securities laws and applicable corporate legislation in respect of the Offering;

(h)

the Purchased Securities have been duly authorized for issuance and upon issuance pursuant to the provisions hereof will be validly issued and fully paid as non-assessable common shares in the capital of the Issuer;

(i)

this Subscription Agreement constitutes a legal, valid and binding obligation of the Issuer enforceable against the Issuer in accordance with its terms subject, however, to the customary limitations with respect to bankruptcy, insolvency or other laws affecting creditors’ rights generally and to the availability of equitable remedies;

(j)

the execution and delivery of this Subscription Agreement and the compliance by the Issuer with the terms hereof, including the issue, sale and delivery of the Purchased Securities, will not result in any breach, or be in conflict with, or constitute a default under, or create a state of facts which after notice or lapse of time or both would constitute a default under, any term or provision of the Issuer’s constating documents or by-laws, resolutions of the directors of the Issuer or any indenture, contract, agreement (whether written or oral), instrument or other document to which the Issuer is a party or subject, or any judgment, decree, order, statute, rule or regulation applicable to the Issuer;

(k)

except for approval for listing of the Purchased Securities by the TSX, no approval, authorization, consent or order of, and no filing, registration or recording with, any governmental authority or any third party is required of the Issuer in connection with the execution and delivery or with the performance by the Issuer of this Subscription Agreement;

(l)

the Issuer will within the required time, file with the TSX or any other applicable securities agency, any documents, reports and information, in the required form, required to be filed by Securities Laws in connection with the Offering, together with any applicable filing fees and other materials;

(m)

at the Closing Time, approval for listing of the Purchased Securities by the TSX will have been obtained subject to the fulfilment of any post-Closing filings referred to in the conditional acceptance letter from the TSX;

(n)

the Issuer is a “reporting issuer” in British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, Quebec, New Brunswick, Nova Scotia, Prince Edward Island, Newfoundland and Labrador, Northwest Territories, Yukon and Nunavut and the Issuer is not in default of any of the material requirements of the applicable securities laws;

(o)

the common shares of the Issuer are listed and posted for trading on the TSX;

(p)

the Issuer is not a party to any unanimous shareholder, voting trust or similar agreement in each case relating to any of the issued and outstanding securities or equity interests of the Issuer;

(q)

the Issuer has not entered into a shareholders rights plan agreement or put in place a shareholders rights plan;

(r)

the Issuer is the owner of all of its property and assets used by it in connection with its business, unless leased or licensed, in each case with good and marketable title thereto, free and clear of any encumbrances and of any rights or privileges capable of becoming encumbrances, except as disclosed publicly by the Issuer any and all agreements pursuant to which the Issuer or its subsidiary holds or will hold any such interest in property, business or assets are in good standing in all material respects according to their terms, and the properties are in good standing in all material respects under the applicable statutes and regulations of the jurisdictions in which they are situated;

(s)

except as disclosed in the Issuer’s publicly filed documents, the Issuer and its subsidiary are not a party to any actions, suits or proceedings which could materially adversely affect its or its subsidiary’s business or financial condition, and, except as disclosed in such publicly filed documents, to the best of the Issuer’s knowledge no such actions, suits or proceedings have been threatened as at the date hereof.

8.

Survival

9.

Personal Information Authorization

10.

Governing Law

11.

Costs

12.

Assignment

13.

Entire Agreement

14.

Amendments and Waivers

15.

Language

16.

Time of Essence

17.

Facsimile Deliveries and Counterparts

18.

Extended Meanings and Headings

19.

Currency

20.

Further Assurances

Name:

Title:

Name of Firm

By: _______________________________

Date: ____________________________________