Document:

EX-4.3

 Exhibit 4.3 

THE COMPENSATION OPTIONS (AS HEREINAFTER DEFINED) EVIDENCED BY THIS CERTIFICATE SHALL BE EXERCISABLE PRIOR TO 5:00 P.M. (TORONTO TIME) ON —, AFTER WHICH TIME THEY SHALL EXPIRE AND BE OF NO FURTHER FORCE OR EFFECT. 

COMPENSATION OPTIONS TO PURCHASE 

UNITS OF 
 COHBAR, INC.

 (Incorporated under the laws of Delaware) 

No. 2014-CO-— 

THIS CERTIFIES that, for value received, — (the “Holder”), is the registered holder of — compensation options (the “Compensation Options”) each of which entitles the Holder, subject to the terms and conditions set forth in this Compensation Option Certificate, to purchase
from CohBar, Inc. (the “Company”), one unit of the Company (a “Unit”) consisting of one share of common stock (a “Common Share”) of the Company and one-half of one common stock purchase warrant
(each whole common stock purchase warrant, a “Warrant”) of the Company, at any time prior to 5:00 p.m. (Toronto time) (the “Time of Expiry”) on — (the
“Expiry Date”)1 on payment of $1.00 per Unit (the “Exercise Price”), all as set out in the agency agreement entered into between the Company and the Holder, among
others, dated —. Each Warrant entitles the Holder to purchase one Common Share at an exercise price of $2.00 at any time prior to 5:00 p.m. (Toronto time) on
—2 in accordance with the terms of the warrant indenture between the Company and CST Trust Company dated
— (the “Warrant Indenture”), subject to the Company’s right to accelerate expiry of the Warrants under certain circumstances described in the Warrant Indenture. The number of
Units which the Holder is entitled to acquire upon exercise of the Compensation Options and the Exercise Price are subject to adjustment as hereinafter provided. 
  

	1.	Exercise of Compensation Options 

  

	(a)	Election to Exercise. The rights evidenced by this Compensation Option Certificate may be exercised by the Holder in whole or in part and in accordance with the provisions hereof by delivery of an Election to
Exercise in substantially the form attached hereto as Schedule “A”, properly completed and executed, together with payment of the Exercise Price by bank draft or certified cheque payable to or to the order of the Company in the amount of
the Exercise Price multiplied by the number of Units specified in the Election to Exercise at the office of the Company, at 2265 East Foothill Blvd., Pasadena, CA 91107, or such other address in Canada or the United States as the Holder may be
notified of in writing by the Company. In the event that the rights evidenced by this Compensation Option Certificate are exercised in part, the Company shall, contemporaneously with the issuance of the Common Shares and Warrants issuable on the
exercise of the Compensation Options so exercised, issue to the Holder a Compensation Option Certificate on identical terms in respect of that number of Units in respect of which the Holder has not exercised the rights evidenced by this Compensation
Option Certificate. 

  

	1 	18 months after the closing of the initial public offering. 

	2 	24 months after the closing of the initial public offering. 

	(b)	Exercise. The Company shall, on the date it receives a duly executed Election to Exercise and funds equal to the Exercise Price by bank draft or certified cheque payable to or to the order of the Company for the
number of Units specified in the Election to Exercise (the “Exercise Date”), issue that number of Common Shares and Warrants specified in the Election to Exercise (in the case of the Common Shares, as fully paid and non-assessable
shares). 

  

	(c)	Common Share and Warrant Certificates. As promptly as practicable after the Exercise Date, the Company shall or shall cause its transfer agent and warrant agent, as applicable, to issue and deliver to the Holder,
registered in such name or names as the Holder may direct or if no such direction has been given, in the name of the Holder, certificates for the number of Common Shares and Warrants comprising the Units specified in the Election to Exercise. To the
extent permitted by law, such exercise shall be deemed to have been effected as of the close of business on the Exercise Date, and at such time the rights of the Holder with respect to the number of Compensation Options which have been exercised as
such shall cease, and the person or persons in whose name or names any share or warrant certificates shall then be issuable upon such exercise shall be deemed to have become the holder or holders of record of the Common Shares and Warrants
represented thereby. 

  

	(d)	Fractional Common Shares or Warrants. No fractional Common Shares or Warrants shall be issued upon exercise of the Compensation Options, and in such case, the number of Common Shares and Warrants issuable upon
the exercise of any Compensation Options shall be rounded down to the nearest whole number. 

  

	(e)	No Obligation to Purchase. Nothing herein contained or done pursuant hereto shall obligate the Holder to subscribe for or the Company to issue any Common Shares or Warrants except those Common Shares and Warrants
in respect of which the Holder shall have exercised its right to purchase hereunder in the manner provided herein. 

  

	(f)	Lost Certificates. If the Compensation Option Certificate evidencing the Compensation Options issued hereby becomes stolen, lost, mutilated or destroyed the Company may, on such terms as it may in its sole
discretion impose, issue and countersign a new Compensation Option Certificate of like denomination, tenor and date as the Compensation Option Certificate so stolen, lost mutilated or destroyed. 

 

	(g)	Corporate Changes. If, after — (the “Closing Date”) and prior to the Time of Expiry, the Company shall be a party to any reorganization,
merger, dissolution or sale of all or substantially all of its assets, whether or not the Company is the surviving entity, the number of Compensation Options evidenced by this Compensation Option Certificate shall be adjusted so as to apply to the
securities to which the holder of that number of Common Shares equal to the number of Units subject to the unexercised Compensation Options would have been entitled by reason of such reorganization, merger, dissolution or sale of all or
substantially all of its assets (the “Event”), and the Exercise Price shall be adjusted to be the amount determined by multiplying the Exercise Price in effect immediately prior to the Event by the number of Units subject to the
unexercised Compensation Options immediately prior to the Event, and dividing the product thereof by the number of securities to which the holder of that number of Common Shares equal to the number of Units subject to the unexercised Compensation
Options would have been entitled to by reason of such Event. 

  

	(h)	Subdivision or Consolidation of Common Shares. 

  
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	 	(a)	In the event that, after the Closing Date and prior to the Time of Expiry, the Company shall subdivide its outstanding shares into a greater number of Common Shares or issue any Common Shares to the holders of all or
substantially all of the outstanding Common Shares by way of a stock dividend (other than any stock dividends constituting dividends paid in the ordinary course), the Exercise Price in effect immediately prior to such subdivision or dividend shall
be proportionately reduced, and conversely, in case the outstanding shares shall be consolidated into a smaller number of Common Shares, the Exercise Price in effect immediately prior to such consolidation shall be proportionately increased (any
such subdivision, dividend or consolidation being hereinafter referred to as a “Capital Reorganization”). 

  

	 	(b)	Upon each adjustment of the Exercise Price in paragraph (h)(i) above, the Holder shall thereafter be entitled to acquire, at the Exercise Price resulting from such adjustment, the number of Common Shares (calculated to
the nearest tenth of a Common Share) obtained by multiplying the Exercise Price in effect immediately prior to such adjustment by the number of Common Shares which may be acquired hereunder immediately prior to such adjustment and dividing the
product thereof by the Exercise Price resulting from such adjustment. 

  

	(i)	Change or Reclassification of Common Shares. In the event that, after the Closing Date and prior to the Time of Expiry, the Company shall change or reclassify its outstanding shares into a different class of
securities, the rights evidenced by the Compensation Options shall be adjusted as follows so as to apply to the successor class of securities: 

  

	 	(a)	the number of the successor class of securities which the Holder shall be entitled to acquire shall be that number of the successor class of securities which a holder of that number of Common Shares equal to the number
of Units subject to the unexercised Compensation Options immediately prior to the change or reclassification would have been entitled to by reason of such change or reclassification; and 

 

	 	(b)	the Exercise Price shall be determined by multiplying the Exercise Price in effect immediately prior to the change or reclassification by the number of Common Shares equal to the number of Units subject to the
unexercised Compensation Options immediately prior to the change or reclassification, and dividing the product thereof by the number of Common Shares determined in paragraph (i)(a) hereof. 

 

	(j)	Offering to Shareholders. In the event that, after the Closing Date and prior to the Time of Expiry, the Company shall fix a record date or if a date of entitlement to receive is otherwise established (any such
date being hereinafter referred to in this paragraph (j) as the “record date”) for the issuance of rights, options or warrants to all or substantially all the holders of the outstanding Common Shares entitling them, for a
period expiring not more than 45 days after such record date, to subscribe for or purchase Common Shares or securities convertible into or exchangeable for Common Shares at a price per share or, as the case may be, having a conversion or exchange
price per share less than 95% of the Current Market Price (as defined in the Warrant Indenture) on such record date (any such event being hereinafter referred to as a “Rights Offering”), the Exercise Price shall be adjusted
immediately after such record date so that it shall equal the price determined by multiplying the Exercise Price in effect on such record date by a fraction: 

  

	 	(a)	 the numerator of which shall be the total number of Common Shares outstanding on such record date plus a number equal to the number arrived at by
dividing (A) the aggregate subscription or purchase price of the total number of additional Common Shares offered for 

  
 - 3 - 

	 	
subscription or purchase or, as the case may be, the aggregate conversion or exchange price of the convertible or exchangeable securities so offered by (B) the Current Market Price at such
record date; and 

  

	 	(b)	the denominator of which shall be the total number of Common Shares outstanding on such record date plus the total number of additional Common Shares so offered (or, as the case may be, into which the convertible or
exchangeable securities so offered are convertible or exchangeable), 

 provided that, 

 

	 	(a)	any Common Shares owned by or held for the account of the Company or any subsidiary of the Company shall be deemed not to be outstanding for the purpose of any such computation; 

 

	 	(b)	such adjustment shall be made successively whenever such a record date is fixed; and 

  

	 	(c)	to the extent that any rights or warrants are not so issued or any such rights or warrants are not exercised prior to the expiration thereof, the Exercise Price shall then be readjusted to the Exercise Price which would
then be in effect if such record date had not been fixed or to the Exercise Price which would then be in effect based upon the number of Common Shares or conversion or exchange rights contained in convertible or exchangeable securities actually
issued upon the exercise of such rights or warrants, as the case may be. 

  

	(k)	Special Distribution. In the event that, after the Closing Date and prior to the Time of Expiry, the Company shall fix a record date (hereinafter referred to in this paragraph (i) as the “record
date”) for the distribution to all or substantially all the holders of the outstanding Common Shares of: 

  

	 	(a)	shares of any class, whether of the Company or any other corporation; 

  

	 	(b)	rights, options or warrants; 

  

	 	(c)	evidences of indebtedness; or 

  

	 	(d)	other assets or property; 

 and if such distribution does not constitute (A) a Capital
Reorganization, (B) a Rights Offering, or (C) a Dividend (as defined in the Warrant Indenture) paid in the ordinary course (any such non-excluded event being hereinafter referred to as a “Special Distribution”) the
Exercise Price shall be adjusted immediately after such record date so that it shall equal the price determined by multiplying the Exercise Price in effect on such record date by a fraction: 

 

	 	(i)	the numerator of which shall be the amount by which (A) the amount obtained by multiplying the number of Common Shares outstanding on such record date by the Current Market Price on such record date, exceeds
(B) the fair market value (as reasonably determined by the directors of the Company in good faith, which determination shall be conclusive) to the holders of such shares of such Special Distribution; and 

 

	 	(ii)	the denominator of which shall be the total number of Common Shares outstanding on such record date multiplied by such Current Market Price, 

  
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 provided that, 
  

	 	(i)	any Common Shares owned by or held for the account of the Company or any subsidiary of the Company shall be deemed not to be outstanding for the purpose of any such computation; 

 

	 	(ii)	such adjustment shall be made successively whenever such a record date is fixed; and 

  

	 	(iii)	to the extent that such Special Distribution is not so made or any such rights, options or warrants are not exercised prior to the expiration thereof, the Exercise Price shall then be readjusted to the Exercise Price
which would then be in effect if such record date had not been fixed or if such expired rights, options or warrants had not been issued. 

  

	(l)	Carry Over of Adjustments. No adjustment of the Exercise Price shall be made if the amount of such adjustment shall be less than 1% of the Exercise Price in effect immediately prior to the event giving rise to
the adjustment, provided, however, that in such case any adjustment that would otherwise be required then to be made shall be carried forward and shall be made at the time of and together with the next subsequent adjustment which, together with any
adjustment so carried forward, shall amount to at least 1% of the Exercise Price. 

  

	(m)	Adjustment to Number of Shares. If any adjustment in the Exercise Price shall occur as a result of: (A) the fixing by the Company of a record date for an event referred to in paragraph (j); or (B) the
fixing by the Company of a record date for an event referred to in either of paragraph (k)(a) or paragraph (k)(b), then the number of Units purchasable upon any subsequent exercise of a Compensation Option shall be simultaneously adjusted by
multiplying the number of Units purchasable upon the exercise of a Compensation Option immediately prior to such adjustment by a fraction which shall be the reciprocal of the fraction employed in the adjustment of the Exercise Price. To the extent
that any adjustment in subscription rights occurs pursuant to this paragraph (m) as a result of the fixing by the Company of a record date for the distribution of rights, options or warrants referred to in paragraph (j), the number of Units
purchasable upon exercise of a Compensation Option shall be readjusted immediately after the expiration of any relevant exchange, conversion or exercise right to the number of Units which would be purchasable based upon the number of shares actually
issued immediately after such expiration, and shall be further readjusted in such manner upon expiration of any further such right. To the extent that any adjustment in subscription rights occurs pursuant to this paragraph (m) as a result of
the fixing by the Company of a record date for the distribution of exchangeable or convertible securities or rights, options or warrants referred to in paragraph (k), the number of Units purchasable upon exercise of the Compensation Option shall be
readjusted immediately after the expiration of any relevant exchange, conversion or exercise right to the number which would be purchasable pursuant to this paragraph (m) if the fair market value of such securities or such rights, options or
warrants had been determined for purposes of the adjustment pursuant to this subsection on the basis of the number of shares issued immediately after such expiration. 

 

	(n)	Notice of Adjustment. Upon any adjustment of the number of Units and upon any adjustment of the Exercise Price, then and in each such case the Company shall give written notice thereof to the Holder, which notice
shall state the Exercise Price and the number of Units or other securities subject to the unexercised Compensation Options resulting from such adjustment, and shall set forth in reasonable detail the method of calculation and the facts upon which
such calculation is based. Upon the request of the Holder there shall be transmitted to the Holder a statement of the firm of independent chartered accountants retained to audit the financial statements of the Company to the effect that such firm
concurs in the Company’s calculation of the change. 

  
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	(o)	Other Notices. In case at any time after the Closing Date and prior to the Time of Expiry: 

  

	 	(i)	the Company shall declare any dividend upon its shares payable in Common Shares; 

  

	 	(ii)	the Company shall offer for subscription pro rata to the holders of its Common Shares any additional shares of any class or other rights, options or warrants; 

 

	 	(iii)	there shall be any capital reorganization or reclassification of the capital stock of the Company, or consolidation, amalgamation or merger of the Company with, or sale of all or substantially all of its assets to,
another corporation; or 

  

	 	(iv)	there shall be a voluntary or involuntary dissolution, liquidation or winding-up of the Company, 

then, in any one or more of such cases, the Company shall give to the Holder (A) at least 10 days’ prior written notice of the date
on which a record date shall be taken for such dividend, distribution or subscription rights or for determining rights to vote in respect of any such reorganization, reclassification, consolidation, merger, amalgamation, sale, dissolution,
liquidation or winding-up and (B) in the case of any such reorganization, reclassification, consolidation, merger, amalgamation, sale, dissolution, liquidation or winding-up, at least 10 days’ prior written notice of the date when the same
shall take place. Such notice in accordance with the foregoing clause (A) shall also specify, in the case of any such dividend, distribution or subscription rights, the date on which the holders of Common Shares shall be entitled thereto, and
such notice in accordance with the foregoing clause (B) shall also specify the date on which the holders of Common Shares shall be entitled to exchange their shares for securities or other property deliverable upon such reorganization,
reclassification, consolidation, merger, amalgamation, sale, dissolution, liquidation or winding-up, as the case may be. 
  

	(p)	Adjustments to Warrants. All adjustments in connection with the Warrants comprising part of the Units and issuable upon the exercise of the Compensation Options shall be made in accordance with the terms and
conditions of the Warrant Indenture whether or not the Warrants have been issued upon the exercise of the Compensation Options. 

  

	(q)	Common Shares and Warrants to be Reserved. The Company will at all times keep available, and reserve if necessary, out of its authorized shares, solely for the purpose of issue upon the exercise of the
Compensation Options, such number of Common Shares as shall then be issuable upon the exercise of the Compensation Options and the Warrants partially comprising the Units issuable upon exercise of the Compensation Options. The Company covenants and
agrees that all Common Shares and Warrants which shall be so issuable will, upon issuance, be duly authorized and issued as fully paid and non-assessable. The Company will take all such actions as may be necessary to ensure that all such Common
Shares and Warrants may be so issued without violation of any applicable requirements of any exchange upon which the shares of the Company may be listed or in respect of which the Common Shares are qualified for unlisted trading privileges. The
Company will take all such actions as are within its power to ensure that all such Common Shares and Warrants may be so issued without violation of any applicable law. 

 

	(r)	Issue Tax. The issuance of certificates for Common Shares and Warrants upon the exercise of Compensation Options shall be made without charge to the Holder, provided that the Company shall not be required to pay
any tax which may be payable in respect of any transfer involved in the issuance and delivery of any certificate in a name other than that of the Holder. 

  
 - 6 - 

	(s)	Listing. The Company will, at its expense and as expeditiously as possible, use commercially reasonable efforts to cause all Common Shares issuable upon the exercise of the Compensation Options (including any
Common Shares issuable upon exercise of the Warrants) to be duly listed on any stock exchange upon which the shares of the Company may be then listed prior to the issuance of such Common Shares. 

Upon receipt of evidence satisfactory to the Company of the loss, theft, destruction or mutilation of this Compensation Option Certificate and, if requested
by the Company, upon delivery of a bond of indemnity satisfactory to the Company (or, in the case of mutilation, upon surrender of this Compensation Option Certificate), the Company will issue to the Holder a replacement certificate containing the
same terms and conditions as this Compensation Option Certificate. 
  

	2.	Expiry Date 

 The Compensation Options shall expire and all rights to purchase Units hereunder shall
cease and become null and void at the Time of Expiry on the Expiry Date. 
  

	3.	Covenants 

 So long as any Compensation Options remain outstanding the Company covenants that it will use
commercially reasonable efforts to: 
  

	(a)	maintain its corporate existence and to maintain its status as a “reporting issuer” (or the equivalent thereof) not in default of the requirements of the applicable securities laws of at least one jurisdiction
of Canada; and 

  

	(b)	maintain the effectiveness of a registration statement (the “Registration Statement”) under the United States Securities Act of 1933, as amended, covering the Compensation Options and the securities
issuable thereunder until the earliest of: (i) the expiration of all Compensation Options and any Warrants issued upon exercise thereof; (ii) the date all Compensation Options and all Warrants issued upon exercise thereof have been
exercised; or (iii) at any time all Compensation Options and all Warrants issued upon exercise thereof have been exercised and all Shares of Common Stock issued upon exercise of such Compensation Options and Warrants can be re-sold without
restriction pursuant to Rule 144 of the U.S. Securities Act. 

 For greater certainty, (i) it will not be considered commercially
reasonable to maintain status as a reporting issuer or maintain the effectiveness of the Registration Statement if to do so would hinder or impede, in any way, any effort on the part of the Company to effect, or to take any steps in furtherance of,
any amalgamation or business combination (whether by way of a merger, plan of arrangement, consolidation, share or other security exchange transaction, recapitalization, asset acquisition or other transaction) involving any one or more of itself or
any of its subsidiaries or affiliates completed in accordance with applicable securities laws; and (ii) if the Company has not maintained status as a reporting issuer and/or maintained the effectiveness of the Registration Statement, no holder
of Compensation Options or Warrants shall have any right to receive, and the Company shall be under no obligation to pay to any holder of Compensation Options Warrants, any cash amount or other consideration or compensation upon exercise of the
Compensation Options or Warrants, other than as expressly provided herein or in the Warrant Indenture, and the Company shall not be under any obligation to redeem or otherwise purchase any Compensation Options or Warrants in any circumstance;
provided, further, that nothing in this Section 3(c) shall limit or restrict any remedies of any holder of Compensation Options or Warrants in respect of a breach by the Company of a representation, warranty or covenant herein or under the
Warrant Indenture. 

  
 - 7 - 

	4.	Representation and Warranty 

 The Company hereby represents and warrants with and to the Holder that the
Company is duly authorized and has the corporate and lawful power and authority to create and issue the Compensation Options and the Common Shares and Warrants comprising the Compensation Options issuable upon the exercise hereof and to perform its
obligations hereunder and that this Compensation Option Certificate represents a valid, legal and binding obligation of the Company enforceable in accordance with its terms. 
  

	5.	Inability to Deliver Common Shares or Warrants 

 The Company shall not be required to deliver
certificates for Common Shares or Warrants while the share transfer books of the Company are properly closed, prior to any meeting of shareholders or for the payment of dividends or for any other purpose and in the event of the surrender of any
Compensation Option in accordance with the provisions hereof and the making of any subscription and payment for the Units called for thereby during any such period delivery of certificates for Common Shares and Warrants may be postponed for a period
not exceeding five business days after the date of the re-opening of said share transfer books provided that any such postponement of delivery of certificates shall be without prejudice to the right of the Holder, if the Holder has surrendered the
same and made payment during such period, to receive such certificates for the Common Shares and Warrants called for after the share transfer books shall have been re-opened. 
  

	6.	Not a Shareholder 

 Nothing in this Compensation Option Certificate or in the holding of a Compensation
Option evidenced hereby shall be construed as conferring upon the Holder any right or interest whatsoever as a shareholder of the Company. 
  

	7.	Governing Law 

 The laws of the Province of British Columbia and the federal laws of Canada applicable
therein shall govern the Compensation Options. Any and all disputes arising under this Compensation Option Certificate, whether as to interpretation, performance or otherwise, shall be subject to the non-exclusive jurisdiction of the courts of the
Province of British Columbia and the Holder shall be deemed to have irrevocably attorned to the jurisdiction of the courts of such province. 
  

	8.	Severability 

 If any one or more of the provisions or parts thereof contained in this Compensation
Option Certificate should be or become invalid, illegal or unenforceable in any respect in any jurisdiction, the remaining provisions or parts thereof contained herein shall be and shall be conclusively deemed to be, as to such jurisdiction,
severable therefrom. 
  

	9.	Headings 

 The headings of the sections, subsections and clauses of this Compensation Option Certificate
have been inserted for convenience and reference only and do not define, limit, alter or enlarge the meaning of any provision of this Compensation Option Certificate. 

  
 - 8 - 

	10.	Numbering of Sections, etc. 

 Unless otherwise stated, a reference herein to a numbered or lettered
section, subsection, clause, subclause or schedule refers to the section, subsection, clause, subclause or schedule bearing that number or letter in this Compensation Option Certificate. 

 

	11.	Gender 

 Whenever used in this Compensation Option Certificate, words importing the singular number only
shall include the plural, and vice versa, and words importing the masculine gender shall include the feminine gender. 
  

	12.	Currency 

 All dollar amounts referred to in this Compensation Option Certificate are in lawful money of
the United States. 
  

	13.	Day not a Business Day 

 In the event that any day on or before which any action is required to be taken
hereunder is not a Business Day, then such action shall be required to be taken on or before the requisite time on the next succeeding day that is a Business Day. 
  

	14.	Notice 

 Unless herein otherwise expressly provided, a notice to be given hereunder will be deemed to be
validly given if the notice is sent by telecopier or prepaid same day courier addressed as follows: 
 If to the Holder at the latest address of the Holder
as recorded on the books of the Company; and 
 If to the Company at: 

CohBar, Inc. 
 P.O. Box 955

 Mill Valley, CA 94942 
  

			
	 Attention:
	  	Jon Stern
	 Fax:
	  	415-381-8980

 With a copy to: 

Garvey Schubert Barer 

1191 Second Avenue, Suite 1800 

Seattle, Washington 98101 
 Attn:
Peter B. Cancelmo 
 Tel: (206) 816-1332 

  
 - 9 - 

	15.	Successors 

 This Certificate shall enure to the benefit of and shall be binding upon the Holder and the
Company and their respective successors. 
  

	16.	Time of Essence 

 Time shall be of the essence hereof. 

 

	17.	Execution 

 This Compensation Option Certificate may be executed by the Company by written, lithographed
or otherwise mechanically reproduced signature of an officer of the Company and this Compensation Option Certificate bearing such signature shall be binding upon the Company as if it had been manually signed by such officer. 

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 

  
 - 10 - 

 IN WITNESS WHEREOF the Company has caused this Compensation Option Certificate to be signed by its duly
authorized officer. 
 DATED as of —, 2014. 

COHBAR, INC. 
  

			
	 Per:
	 	  

		 	Authorized Signing Officer

  
 - 11 - 

 SCHEDULE “A” 

ELECTION TO EXERCISE 
 Capitalized terms
used herein have the meanings ascribed thereto in the Compensation Option certificate (the “Certificate”) attached hereto. 
 The undersigned
Holder hereby irrevocably elects to exercise the Compensation Options granted by the Company pursuant to the Certificate for the number of Units (or other property or securities contemplated in the Certificate) as set forth below: 

 

							
	(a)	 	        Number of Units to be acquired	 	  

				
	 (b)
	 	        Exercise Price (per Unit)	 	$	 	  

				
	 (c)
	 	        Aggregate Exercise Price	 	$	 	  

 The Holder hereby tenders a certified cheque, bank draft or cash for such aggregate Exercise Price and directs the Common
Shares and Warrants to be registered and certificates therefor to be issued as directed below. 
 The undersigned Holder hereby acknowledges that the
undersigned is aware that the securities received on exercise may be subject to restrictions on resale under applicable securities legislation and that unless the securities issued upon exercise of the Compensation Options are registered under the
United States Securities Act of 1933, as amended (the “U.S. Securities Act”), and any applicable state securities laws, such securities will bear a legend restricting the transfer without registration under the U.S. Securities Act and
applicable state securities laws substantially the form set forth in Section 3.3(c) of the Warrant Indenture. 
 Unless the Compensation Options and
the securities issuable upon delivery thereof are subject to an effective registration statement under the U.S. Securities Act, and any applicable state securities laws, the undersigned represents, warrants and certifies as follows [Check
One]: 
  ̈ The undersigned Holder is (i) a holder in the United States, (ii) a
U.S. Person, (iii) a person exercising for the account or benefit of a U.S. Person, (iv) executing this Election to Exercise in the United States or (v) requesting delivery of the underlying securities in the United States, and is
tendering this Election to Exercise with a written opinion of counsel or such other evidence reasonably satisfactory to the Company to the effect that the underlying securities may be issued and delivered upon exercise of the Compensation Options
pursuant to a valid exemption from the registration requirements of the U.S. Securities Act. 

 ̈ The undersigned Holder: (A)(1) is not in the United States; (2) is not a U.S. Person
and is not exercising the Compensation Options for, or on behalf or for the benefit of, a U.S. Person or other person in the United States; (3) did not execute the Compensation Option in the United States; (4) agrees not to engage in
hedging transactions with regard to the securities prior to the expiration of the one year distribution compliance period set forth in Rule 903(b)(3) of Regulation S; (5) acknowledges that the securities issuable upon exercise of the
Compensation Options are “restricted securities” as defined in Rule 144 of the U.S. Securities Act and upon the issuance thereof, and until such time as the same is no longer required under the applicable requirements of the U.S.
Securities Act or applicable U.S. state laws and regulations, the certificates representing the securities will bear a restrictive legend; and (6) acknowledges that the Corporation shall refuse to register any transfer of any securities not
made pursuant to an effective Registration Statement under the U.S. Securities Act, or pursuant to an available exemption from registration under the U.S. Securities Act; and (B) neither the Holder nor any affiliate of the Holder or other
person acting on the Holder’s behalf has engaged in any “directed selling efforts” (as defined in Regulation S) in the United States. 
 The
terms “United States” and “U.S. Person” are as defined in Rule 902 of Regulation S under the U.S. Securities Act. 

	
	Direction as to Registration

  

			
	Name of Registered Holder:	 	  

 

			
	Address of Registered Holder:	 	  

 PLEASE CHECK THIS BOX IF THE CERTIFICATES REPRESENTING THESE SECURITIES ARE TO BE DELIVERED AT THE OFFICE OF
THE COMPANY, FAILING WHICH THE CERTIFICATES WILL BE MAILED TO THE ADDRESS(ES) SET FORTH ABOVE. 
 DATED this      day of
                    , 20        . 
  

					
	  

Signature Guaranteed
	 	            Per:	 	  

	 	  

            Name:
	 	  
  

			
		 	            Title:	 	  

  
 - 2 -EX-4.4

 Exhibit 4.4 

COHBAR, INC. 
 as the
Corporation 
 and 
 CST
TRUST COMPANY 
 as the Warrant Agent 
  

 
 WARRANT INDENTURE 

Providing for the Issue of 

5,625,000 IPO Unit Warrants 

1,350,000 Put Unit Warrants 

and 
 Up to 393,750
Compensation Unit Warrants 
 Dated as of [—], 2014 

 
  

 TABLE OF CONTENTS 

 

									
	 	  	 	  	 	  	Page No.	 
	 ARTICLE 1 INTERPRETATION
	  	 	6	  
		  	1.1	  	Definitions	  	 	6	  
		  	1.2	  	Gender and Number	  	 	10	  
		  	1.3	  	Headings, Etc.	  	 	10	  
		  	1.4	  	Day not a Business Day	  	 	10	  
		  	1.5	  	Time of the Essence	  	 	10	  
		  	1.6	  	Monetary References	  	 	10	  
		  	1.7	  	Applicable Law	  	 	11	  
		
	 ARTICLE 2 ISSUE OF WARRANTS
	  	 	11	  
		  	2.1	  	Creation and Issue of Warrants	  	 	11	  
		  	2.2	  	Terms of Warrants	  	 	11	  
		  	2.3	  	Warrantholder not a Shareholder	  	 	12	  
		  	2.4	  	Warrants to Rank Pari Passu	  	 	12	  
		  	2.5	  	Form of Warrants, Certificated Warrants	  	 	12	  
		  	2.6	  	Book Entry Only Warrants	  	 	12	  
		  	2.7	  	Warrant Certificate	  	 	14	  
		  	2.8	  	Legends	  	 	16	  
		  	2.9	  	Register of Warrants	  	 	17	  
		  	2.10	  	Issue in Substitution for Warrant Certificates Lost, etc.	  	 	18	  
		  	2.11	  	Exchange of Warrant Certificates	  	 	18	  
		  	2.12	  	Transfer and Ownership of Warrants	  	 	19	  
		  	2.13	  	Cancellation of Surrendered Warrants	  	 	20	  
		
	 ARTICLE 3 EXERCISE OF WARRANTS
	  	 	20	  
		  	3.1	  	Right of Exercise	  	 	20	  
		  	3.2	  	Warrant Exercise	  	 	20	  
		  	3.3	  	Prohibition on Exercise by U.S. Persons; Legended Certificates; Special Conditions to Exercise of Put Unit Warrants.	  	 	22	  
		  	3.4	  	Transfer Fees and Taxes	  	 	24	  
		  	3.5	  	Warrant Agency	  	 	24	  
		  	3.6	  	Effect of Exercise of Warrant Certificates	  	 	25	  
		  	3.7	  	Partial Exercise of Warrants; Fractions	  	 	25	  
		  	3.8	  	Expiration of Warrants	  	 	25	  
		  	3.9	  	Accounting and Recording	  	 	25	  
		  	3.10	  	Securities Restrictions	  	 	26	  
		
	 ARTICLE 4 ADJUSTMENT OF NUMBER OF COMMON SHARES AND EXERCISE PRICE
	  	 	26	  
		  	4.1	  	Adjustment of Number of Common Shares and Exercise Price	  	 	26	  
		  	4.2	  	Entitlement to Common Shares on Exercise of Warrant	  	 	30	  
		  	4.3	  	No Adjustment for Certain Transactions	  	 	30	  
		  	4.4	  	Determination by Independent Firm	  	 	30	  
		  	4.5	  	Proceedings Prior to any Action Requiring Adjustment	  	 	30	  
		  	4.6	  	Certificate of Adjustment	  	 	30	  
		  	4.7	  	Notice of Special Matters	  	 	31	  
		  	4.8	  	No Action after Notice	  	 	31	  
		  	4.9	  	Other Action	  	 	31	  

									
		  	4.10	  	Protection of Warrant Agent	  	 	31	  
		  	4.11	  	Participation by Warrantholder	  	 	32	  
		
	 ARTICLE 5 RIGHTS OF THE CORPORATION AND COVENANTS
	  	 	32	  
		  	5.1	  	Optional Purchases by the Corporation	  	 	32	  
		  	5.2	  	General Covenants	  	 	32	  
		  	5.3	  	Warrant Agent’s Remuneration and Expenses	  	 	33	  
		  	5.4	  	Performance of Covenants by Warrant Agent	  	 	33	  
		  	5.5	  	Enforceability of Warrants	  	 	34	  
		
	 ARTICLE 6 ENFORCEMENT
	  	 	34	  
		  	6.1	  	Suits by Registered Warrantholders	  	 	34	  
		  	6.2	  	Suits by the Corporation	  	 	34	  
		  	6.3	  	Immunity of Shareholders, etc.	  	 	34	  
		  	6.4	  	Waiver of Default	  	 	34	  
		
	 ARTICLE 7 MEETINGS OF REGISTERED WARRANTHOLDERS
	  	 	35	  
		  	7.1	  	Right to Convene Meetings	  	 	35	  
		  	7.2	  	Notice	  	 	35	  
		  	7.3	  	Chairman	  	 	35	  
		  	7.4	  	Quorum	  	 	35	  
		  	7.5	  	Power to Adjourn	  	 	36	  
		  	7.6	  	Show of Hands	  	 	36	  
		  	7.7	  	Poll and Voting	  	 	36	  
		  	7.8	  	Regulations	  	 	36	  
		  	7.9	  	Corporation and Warrant Agent May be Represented	  	 	37	  
		  	7.10	  	Powers Exercisable by Extraordinary Resolution	  	 	37	  
		  	7.11	  	Meaning of Extraordinary Resolution	  	 	38	  
		  	7.12	  	Powers Cumulative	  	 	38	  
		  	7.13	  	Minutes	  	 	38	  
		  	7.14	  	Instruments in Writing	  	 	38	  
		  	7.15	  	Binding Effect of Resolutions	  	 	39	  
		  	7.16	  	Holdings by Corporation Disregarded	  	 	39	  
		
	 ARTICLE 8 SUPPLEMENTAL INDENTURES
	  	 	39	  
		  	8.1	  	Provision for Supplemental Indentures for Certain Purposes	  	 	39	  
		  	8.2	  	Successor Entities	  	 	40	  
		
	 ARTICLE 9 CONCERNING THE WARRANT AGENT
	  	 	40	  
		  	9.1	  	Trust Indenture Legislation	  	 	40	  
		  	9.2	  	Rights and Duties of Warrant Agent	  	 	40	  
		  	9.3	  	Evidence, Experts and Advisers	  	 	41	  
		  	9.4	  	Documents, Monies, etc. Held by Warrant Agent	  	 	42	  
		  	9.5	  	Actions by Warrant Agent to Protect Interest	  	 	43	  
		  	9.6	  	Warrant Agent Not Required to Give Security	  	 	43	  
		  	9.7	  	Protection of Warrant Agent	  	 	43	  
		  	9.8	  	Replacement of Warrant Agent; Successor by Merger	  	 	44	  
		  	9.9	  	Conflict of Interest	  	 	44	  
		  	9.10	  	Acceptance of Agency	  	 	45	  
		  	9.11	  	Warrant Agent Not to be Appointed Receiver	  	 	45	  
		  	9.12	  	Warrant Agent Not Required to Give Notice of Default	  	 	45	  

  
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		  	9.13	  	Anti-Money Laundering	  	 	45	  
		  	9.14	  	Compliance with Privacy Code	  	 	46	  
		  	9.15	  	Securities Exchange Commission Certification	  	 	46	  
		
	 ARTICLE 10 GENERAL
	  	 	47	  
		  	10.1	  	Notice to the Corporation and the Warrant Agent	  	 	47	  
		  	10.2	  	Notice to Registered Warrantholders	  	 	47	  
		  	10.3	  	Ownership of Warrants	  	 	48	  
		  	10.4	  	Counterparts	  	 	48	  
		  	10.5	  	Satisfaction and Discharge of Indenture	  	 	48	  
		  	10.6	  	Provisions of Indenture and Warrants for the Sole Benefit of Parties and Registered Warrantholders	  	 	49	  
		  	10.7	  	Common Shares or Warrants Owned by the Corporation or its Subsidiaries—Certificate to be Provided	  	 	49	  
		  	10.8	  	Severability	  	 	49	  
		  	10.9	  	Force Majeure	  	 	49	  
		  	10.10	  	Assignment, Successors and Assigns	  	 	50	  
		  	10.11	  	Rights of Rescission and Withdrawal for Holders	  	 	50	  

  

	
	 Schedule “A”—Form of Warrant Certificate

	 Schedule “B”—Form of Transfer

	 Schedule “C”—Exercise Form

	 Schedule “D”—Form of Warrant Exercise Certification

  
 - 4 - 

 WARRANT INDENTURE 

THIS WARRANT INDENTURE is dated as of —, 2014. 

BETWEEN: 
 COHBAR, INC., a
corporation incorporated under the laws of the State of Delaware 
 (the “Corporation”), 

AND: 
 CST TRUST COMPANY, a trust
company existing under the laws of Canada and authorized to carry on business in all provinces of Canada 
 (the “Warrant
Agent”) 
 WHEREAS Haywood Securities Inc. is acting as agent in connection with the Corporation’s issuance and sale by
means of a prospectus of 11,250,000 of the Corporation’s units (individually a “Unit” and collectively, the “Units”); 

AND WHEREAS each Unit, issuable at a price of US $1.00 per Unit, consists of one (1) Common Share (as hereinafter defined) and one
half (1/2) of one Common Share purchase warrant (an “IPO Unit Warrant”); 

AND WHEREAS in connection with the Offering the Corporation shall issue up to 787,500 compensation options (the “Compensation
Options”), each entitling the holder thereof to purchase, at any time prior to 5:00 pm (Toronto Time) on the date that is eighteen (18) months following the Issue Date (as hereafter defined), one (1) Unit (a “Compensation
Unit”), each such Compensation Unit consisting of one Common Share and one half (1/2) of one Common Share purchase warrant (a
“Compensation Unit Warrant”); 
 AND WHEREAS concurrently with the completion of the Offering the Corporation will
issue and sell 2,700,000 Units (the “Put Units”) to certain existing investors pursuant to the exercise by the Corporation of Put Rights granted by such investors to the Corporation, each such Put Unit consisting of one Common Share
and one half (1/2) of one Common Share Purchase Warrant (a “Put Unit Warrant”); 

AND WHEREAS pursuant to this Indenture, each Warrant (as hereunder defined) shall, subject to adjustment, entitle the holder thereof to
acquire one Common Share upon payment of the Exercise Price upon the terms and conditions herein set forth; 
 AND WHEREAS all acts
and deeds necessary have been done and performed to make the Warrants, when created and issued as provided in this Indenture, legal, valid and binding upon the Corporation with the benefits and subject to the terms of this Indenture; 

AND WHEREAS the foregoing recitals are made as representations and statements of fact by the Corporation and not by the Warrant Agent;

 NOW THEREFORE, in consideration of the premises and mutual covenants hereinafter contained
and other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the Corporation hereby appoints the Warrant Agent as warrant agent to hold the rights, interests and benefits contained herein for and on behalf
of those persons who from time to time become the holders of Warrants issued pursuant to this Indenture and the parties hereto agree as follows: 

ARTICLE 1 

INTERPRETATION 
  

	1.1	Definitions 

 In this Indenture, including the recitals and schedules hereto, and in all
indentures supplemental hereto: 
  

	 	(a)	“Acceleration Notice” means the written notice of acceleration deliverable to holders for Warrants upon the Corporation’s exercise of the Acceleration Right; 

 

	 	(b)	“Acceleration Right” means the right of the Corporation to accelerate the Expiry Time to a date that is not the less than 30 days following delivery of the Acceleration Notice if, at any time after the
Common Shares are first traded on the TSXV, the volume weighted average trading price of the Common Shares on the TSXV, or if the Common Shares are not then listed on the TSXV, on such other stock exchange on which the Common Shares are principally
traded, equals or exceeds $3.00 for 20 consecutive Trading Days; 

  

	 	(c)	“Adjustment Period” means the period from the Effective Date up to and including the Expiry Time; 

  

	 	(d)	“Applicable Legislation” means any statute of Canada or a province thereof, and the regulations under any such named or other statute, relating to warrant indentures or to the rights, duties and
obligations of warrant agents under warrant indentures, to the extent that such provisions are at the time in force and applicable to this Indenture; 

  

	 	(e)	“Auditors” means Marcum LLP or such other firm of chartered accountants duly appointed as auditors of the Corporation, from time to time; 

 

	 	(f)	“Authenticated” means (a) with respect to the issuance of a Warrant Certificate, one which has been duly signed by the Corporation and authenticated by manual signature of an authorized officer of
the Warrant Agent, (b) with respect to the issuance of an Uncertificated Warrant, one in respect of which the Warrant Agent has completed all Internal Procedures such that the particulars of such Uncertificated Warrant as required by
Section 2.7 are entered in the register of holders of Warrants, “Authenticate”, “Authenticating” and “Authentication” have the appropriate correlative meanings; 

 

	 	(g)	“Book Entry Only Participants” means institutions that participate directly or indirectly in the Depository’s book entry registration system for the Warrants; 

 

	 	(h)	“Book Entry Only Warrants” means Warrants that are to be held only by or on behalf of the Depository; 

  

	 	(i)	“Business Day” means any day other than Saturday, Sunday or a statutory or civic holiday, or any other day on which banks are not open for business in the City of Vancouver, British Columbia or Los
Angeles, California and shall be a day on which the TSXV is open for trading; 

  
 - 6 - 

	 	(j)	“CDS Global Warrants” means Warrants representing all or a portion of the aggregate number of Warrants issued in the name of the Depository represented by an Uncertificated Warrant, or if requested by
the Depository or the Corporation, by a Warrant Certificate; 

  

	 	(k)	“Certificated Warrant” means a Warrant evidenced by a writing or writings substantially in the form of Schedule “A”, attached hereto; 

 

	 	(l)	“Common Shares” means, subject to Article 4, fully paid and non-assessable shares in the common stock of the Corporation as presently constituted; 

 

	 	(m)	“Counsel” means a barrister and/or solicitor or a firm of barristers and/or solicitors retained by the Warrant Agent or retained by the Corporation, which may or may not be counsel for the Corporation;

  

	 	(n)	“Current Market Price” of the Common Shares at any date means the weighted average of the trading price per Common Share on the TSXV, or, if the Common Shares are not then listed on the TSXV, on such
other stock exchange on which the Common Shares are principally traded (as determined by the Corporation’s Board of Directors) or, if the Common Shares are not then listed on any stock exchange, in the over-the-counter market, during a period
of 20 consecutive Trading Days ending not more than five (5) Business Days prior to such date, provided that the weighted average price shall be determined by dividing the aggregate sale price of all such Common Shares sold on such exchange or
market, as the case may be, during such 20 consecutive Trading Days by the total number of such Common Shares so sold; 

  

	 	(o)	“Depository” means CDS Clearing and Depository Services Inc. or such other person as is designated in writing by the Corporation to act as depository in respect of the Warrants; 

 

	 	(p)	“Dividends” means any dividends paid by the Corporation; 

  

	 	(q)	“Effective Date” means the date of this Indenture; 

  

	 	(r)	“Exchange Rate” means the number of Common Shares subject to the right of purchase under each Warrant; 

  

	 	(s)	“Exercise Date” means, in relation to a Warrant, the Business Day on which such Warrant is validly exercised or deemed to be validly exercised in accordance with Article 3 hereof; 

 

	 	(t)	“Exercise Notice” has the meaning set forth in Section 3.2(1); 

  

	 	(u)	“Exercise Price” at any time means the price at which a whole Common Share may be purchased by the exercise of a whole Warrant, which is initially $2.00 per Common Share, payable in immediately
available U.S. funds, subject to adjustment in accordance with the provisions of Section 4.1; 

  
 - 7 - 

	 	(v)	“Expiry Time” means 5:00 p.m. (Toronto time) on [—], 2016; provided that if at any time after the Common Shares are first traded on the TSXV, the
volume weighted average trading price of the Common Shares on the TSXV, or if the Common Shares are not then listed on the TSXV, on such other stock exchange on which the Common Shares are principally traded, equals or exceeds $3.00 for 20
consecutive Trading Days, the Corporation shall be entitled, at the option of the Corporation, to exercise the Acceleration Right by delivering an Acceleration Notice to the Warrantholders within five (5) Business Days to the effect that the
Warrants will be expire at 5:00 p.m. (Toronto time) on the date specified in such notice, provided that such date shall not be less than 30 days following the date of such notice; 

 

	 	(w)	“Extraordinary Resolution” has the meaning set forth in 7.11(1); 

  

	 	(x)	“Internal Procedures” means in respect of the making of any one or more entries to, changes in or deletions of any one or more entries in the register at any time (including without limitation, original
issuance or registration of transfer of ownership) the minimum number of the Warrant Agent’s internal procedures customary at such time for the entry, change or deletion made to be complete under the operating procedures followed at the time by
the Warrant Agent, it being understood that neither preparation and issuance shall constitute part of such procedures for any purpose of this definition; 

  

	 	(y)	“Issue Date” means [—], 2014; 

  

	 	(z)	“person” means an individual, body corporate, partnership, trust, warrant agent, executor, administrator, legal representative or any unincorporated organization; 

 

	 	(aa)	“register” means the one set of records and accounts maintained by the Warrant Agent pursuant to Section 2.9: 

  

	 	(bb)	“Registered Warrantholders” means the persons who are registered owners of Warrants as such names appear on the register, and for greater certainty, shall include the Depository as well as the holders
of Uncertificated Warrants appearing on the register of the Warrant Agent; 

  

	 	(cc)	“Registration Statement” means the Corporation’s registration statement on Form S-1 (SEC File No.: 333-200033) filed with the SEC under the U.S. Securities Act, registering the Common Shares
issuable upon exercise of the IPO Warrants and the Compensation Unit Warrants; 

  

	 	(dd)	“Regulation D” means Regulation D as promulgated by the United States Securities and Exchange Commission under the U.S. Securities Act; 

 

	 	(ee)	“Regulation S” means Regulation S as promulgated by the United States Securities and Exchange Commission under the U.S. Securities Act; 

 

	 	(ff)	“SEC” means the United States Securities and Exchange Commission; 

  

	 	(gg)	“Shareholders” means holders of Common Shares; 

  

	 	(hh)	 “this Warrant Indenture”, “this Indenture”, “this Agreement”, “hereto”
“herein”, “hereby”, “hereof” and similar expressions mean and refer to this Indenture and any 

  
 - 8 - 

	 	
indenture, deed or instrument supplemental hereto; and the expressions “Article”, “Section”, “subsection” and “paragraph”
followed by a number, letter or both mean and refer to the specified article, section, subsection or paragraph of this Indenture; 

  

	 	(ii)	“Trading Day” means, with respect to the TSXV, a day on which such exchange is open for the transaction of business and with respect to another exchange or an over-the-counter market means a day on
which such exchange or market is open for the transaction of business; 

  

	 	(jj)	“TSXV” means the TSX Venture Exchange 

  

	 	(kk)	“Uncertificated Warrant” means any Warrant which is not a Certificated Warrant; 

  

	 	(ll)	“United States” means the United States of America, its territories and possessions, any state of the United States, and the District of Columbia; 

 

	 	(mm)	“U.S. Exchange Act” means the United States Securities Exchange Act of 1934, as amended; 

  

	 	(nn)	“U.S. Person” has the meaning set forth in Rule 902(k) of Regulation S; 

  

	 	(oo)	“U.S. Prospectus” means a prospectus meeting the requirements of Section 10(a) of the U.S. Securities Act; 

  

	 	(pp)	“U.S. Securities Act” means the United States Securities Act of 1933, as amended; 

  

	 	(qq)	“U.S. Warrantholder” means any Warrantholder that is a U.S. Person, acquired Warrants in the United States or for the account or benefit of any U.S. Person or Person in the United States;

  

	 	(rr)	“Warrant Exercise Certification” means the warrant exercise certification attached hereto as Schedule “D”; 

 

	 	(ss)	“Warrants” means the IPO Unit Warrants, the Put Unit Warrants and the Compensation Unit Warrants created by and authorized by and issuable under this Indenture, to be issued and countersigned hereunder
as a Certificated Warrant and /or Uncertificated Warrant held through the book entry registration system on a no certificate issued basis, entitling the holder or holders thereof to purchase Common Shares at the Exercise Price prior to the Expiry
Time and, where the context so requires, also means the warrants issued and Authenticated hereunder, whether by way of Warrant Certificate or Uncertificated Warrant; 

 

	 	(tt)	“Warrant Agency” means the principal office of the Warrant Agent in the City of Vancouver or such other place as may be designated in accordance with Section 3.5; 

 

	 	(uu)	“Warrant Agent” means CST Trust Company, in its capacity as warrant agent of the Warrants, or its successors from time to time; 

 

	 	(vv)	“Warrant Certificate” means a certificate, substantially in the form set forth in Schedule “A” hereto, to evidence those Warrants that will be evidenced by a certificate; 

  
 - 9 - 

	 	(ww)	“Warrantholders”, or “holders” without reference to Warrants, means the warrantholders as and in respect of Warrants registered in the name of the Depository and includes owners of
Warrants who beneficially hold securities entitlements in respect of the Warrants through a Book Entry Only Participant or means, at a particular time, the persons entered in the register hereinafter mentioned as holders of Warrants outstanding at
such time; 

  

	 	(xx)	“Warrantholders’ Request” means an instrument signed in one or more counterparts by Registered Warrantholders entitled to acquire in the aggregate not less than 50% of the aggregate number of
Common Shares which could be acquired pursuant to all Warrants then unexercised and outstanding, requesting the Warrant Agent to take some action or proceeding specified therein; and “written order of the Corporation”,
“written request of the Corporation”, “written consent of the “Corporation” and “certificate of the Corporation” mean, respectively, a written order, request, consent and certificate signed in
the name of the Corporation by any two duly authorized signatories of the Corporation and may consist of one or more instruments so executed. 

  

	1.2	Gender and Number 

 Words importing the singular number or masculine gender shall include
the plural number or the feminine or neuter genders, and vice versa. 
  

	1.3	Headings, Etc. 

 The division of this Indenture into Articles and Sections, the provision
of a Table of Contents and the insertion of headings are for convenience of reference only and shall not affect the construction or interpretation of this Indenture or of the Warrants. 

 

	1.4	Day not a Business Day 

 If any day on or before which any action or notice is required
to be taken or given hereunder is not a Business Day, then such action or notice shall be required to be taken or given on or before the requisite time on the next succeeding day that is a Business Day. 

 

	1.5	Time of the Essence 

 Time shall be of the essence of this Indenture. 

 

	1.6	Monetary References 

 Whenever any amounts of money are referred to herein, such amounts
shall be deemed to be in lawful money of the United States unless otherwise expressed. 

  
 - 10 - 

	1.7	Applicable Law 

 This Indenture, the Warrants, the Warrant Certificates (including all
documents relating thereto, which by common accord have been and will be drafted in English) shall be construed in accordance with the laws of the Province of British Columbia and the federal laws applicable therein and shall be treated in all
respects as contracts. Each of the parties hereto, which shall include the Warrantholders, irrevocably attorns to the exclusive jurisdiction of the courts of the Province of British Columbia with respect to all matters arising out of this Indenture
and the transactions contemplated herein. 
 ARTICLE 2 

ISSUE OF WARRANTS 
  

	2.1	Creation and Issue of Warrants 

 A maximum of 5,625,000 IPO Unit Warrants, 1,350,000 Put
Unit Warrants, and 393,750 Compensation Unit Warrants (subject to adjustment as herein provided) are hereby created and authorized to be issued in accordance with the terms and conditions hereof. By written order of the Corporation, the Warrant
Agent shall deliver Warrant Certificates to Registered Warrantholders and record the name of the Registered Warrantholders on the Warrant register. Registration of interests in Warrants held by the Depository may be evidenced by a position appearing
on the register for Warrants of the Warrant Agent for an amount representing the aggregate number of such Warrants outstanding from time to time. 
  

	2.2	Terms of Warrants 

  

	 	(a)	Subject to the applicable conditions for exercise set out in Article 3 having been satisfied and subject to adjustment in accordance with Section 4.1, each Warrant shall entitle the holder thereof, upon exercise at
any time after the Issue Date and prior to the Expiry Time, to acquire one Common Share upon payment of the Exercise Price. 

  

	 	(b)	No fractional Warrants shall be issued or otherwise provided for hereunder and Warrants may only be exercised in a sufficient number to acquire whole numbers of Common Shares. 

 

	 	(c)	Each Warrant shall entitle the holder thereof to such other rights and privileges as are set forth in this Indenture. 

  

	 	(d)	The number of Common Shares which may be purchased pursuant to the Warrants and the Exercise Price therefor shall be adjusted upon the events and in the manner specified in Section 4.1. 

 

	 	(e)	If at any time after the Common Shares are first traded on the TSXV, the volume weighted average trading price of the Common Shares on the TSXV, or if the Common Shares are not then listed on the TSXV, on such other
stock exchange on which the Common Shares are principally traded, equals or exceeds $3.00 for 20 consecutive Trading Days, the Corporation shall be entitled, at the option of the Corporation, to exercise the Acceleration Right by delivering an
Acceleration Notice to the Warrantholders within five (5) Business Days. An Acceleration Notice shall be delivered to each Warrantholder in the manner in Section 10.1. Upon the Corporation’s exercise of the Acceleration Right the
Corporation shall issue a press release to the effect that the Warrants will expire at 5:00 p.m. (Toronto time) on the date specified in the Acceleration Notice. 

  
 - 11 - 

	2.3	Warrantholder not a Shareholder 

 Except as may be specifically provided herein, nothing
in this Indenture or in the holding of a Warrant Certificate, entitlement to a Warrant or otherwise, shall, in itself, confer or be construed as conferring upon a Warrantholder any right or interest whatsoever as a Shareholder, including, but not
limited to, the right to vote at, to receive notice of, or to attend, meetings of Shareholders or any other proceedings of the Corporation, or the right to Dividends and other allocations. 

 

	2.4	Warrants to Rank Pari Passu 

 All Warrants shall rank equally and without preference over
each other, whatever may be the actual date of issue thereof. 
  

	2.5	Form of Warrants, Certificated Warrants 

 The Warrants may be issued in both certificated
and uncertificated form. Each Put Unit Warrant will be evidenced in certificated form only and bear the applicable legends as set forth in Schedule “A” hereto. All Warrants issued in certificated form shall be evidenced by a Warrant
Certificate (including all replacements issued in accordance with this Indenture), substantially in the form set out in Schedule “A” hereto, which shall be dated as of the Issue Date, shall bear such distinguishing letters and numbers as
the Corporation may, with the approval of the Warrant Agent, prescribe, and shall be issuable in any denomination excluding fractions. All Warrants issued to the Depository may be in either a certificated or uncertificated form, such uncertificated
form being evidenced by a book position on the register of Warrantholders to be maintained by the Warrant Agent in accordance with Section 2.6. 
  

	2.6	Book Entry Only Warrants 

  

	 	(a)	Registration of beneficial interests in and transfers of Warrants held by the Depository shall be made only through the book entry registration system and no Warrant Certificates shall be issued in respect of such
Warrants except where physical certificates evidencing ownership in such securities are required or as set out herein or as may be requested by the Depository, as determined by the Corporation, from time to time. Except as provided in this
Section 2.6, owners of beneficial interests in any Global Warrants shall not be entitled to have Warrants registered in their names and shall not receive or be entitled to receive Warrants in definitive form or to have their names appear in the
register referred to in Section 2.9 herein. Notwithstanding any terms set out herein, Warrants having any legend set forth in Section 2.8 herein and held in the name of the Depository may only be held in the form of Uncertificated Warrants
with the prior consent of the Warrant Agent and in accordance with the internal procedures of the Warrant Agent. 

  
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	 	(b)	Notwithstanding any other provision in this Indenture, no Global Warrants may be exchanged in whole or in part for Warrants registered, and no transfer of any Global Warrants in whole or in part may be registered, in
the name of any person other than the Depository for such Global Warrants or a nominee thereof unless: 

  

	 	(i)	the Depository notifies the Corporation that it is unwilling or unable to continue to act as depository in connection with the Book Entry Only Warrants and the Corporation is unable to locate a qualified successor;

  

	 	(ii)	the Corporation determines that the Depository is no longer willing, able or qualified to discharge properly its responsibilities as holder of the CDS Global Warrants and the Corporation is unable to locate a qualified
successor; 

  

	 	(iii)	the Depository ceases to be a clearing agency or otherwise ceases to be eligible to be a depository and the Corporation is unable to locate a qualified successor; 

 

	 	(iv)	the Corporation determines that the Warrants shall no longer be held as Book Entry Only Warrants through the Depository; 

  

	 	(v)	such right is required by Applicable Law, as determined by the Corporation and the Corporation’s Counsel; 

  

	 	(vi)	the Warrant is to be Authenticated to or for the account or benefit of a person in the United States or a U.S. Person; or 

  

	 	(vii)	such registration is effected in accordance with the internal procedures of the Depository and the Warrant Agent, 

following which, Warrants for those holders requesting the same shall be registered and issued to the beneficial owners of such Warrants or
their nominees as directed by the holder. The Corporation shall provide an Officer’s Certificate giving notice to the Warrant Agent of the occurrence of any event outlined in this Section 2.6 (2)(a)—(f). 

 

	 	(c)	Subject to the provisions of this Section 2.6, any exchange of CDS Global Warrants for Warrants which are not CDS Global Warrants may be made in whole or in part in accordance with the provisions of
Section 2.11, mutatis mutandis. All such Warrants issued in exchange for a CDS Global Warrant or any portion thereof shall be registered in such names as the Depository for such CDS Global Warrants shall direct and shall be entitled to
the same benefits and subject to the same terms and conditions (except insofar as they relate specifically to CDS Global Warrants) as the CDS Global Warrants or portion thereof surrendered upon such exchange. 

 

	 	(d)	Every Warrant that is Authenticated upon registration or transfer of a CDS Global Warrant, or in exchange for or in lieu of a CDS Global Warrant or any portion thereof, whether pursuant to this Section 2.6, or
otherwise, shall be Authenticated in the form of, and shall be, a CDS Global Warrant, unless such Warrant is registered in the name of a person other than the Depository for such CDS Global Warrant or a nominee thereof. 

 

	 	(e)	Notwithstanding anything to the contrary in this Indenture, subject to Applicable Law, the CDS Global Warrant will be issued as an Uncertificated Warrant, unless otherwise requested in writing by the Depository or the
Corporation. 

  

	 	(f)	 The rights of beneficial owners of Warrants who hold securities entitlements in respect of the Warrants through the book entry registration system
shall be limited to those established by applicable law and agreements between the Depository and the Book Entry Only Participants and between such Book Entry Only Participants and the

  
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beneficial owners of Warrants who hold securities entitlements in respect of the Warrants through the book entry registration system, and such rights must be exercised through a Book Entry Only
Participant in accordance with the rules and procedures of the Depository. 

  

	 	(g)	Notwithstanding anything herein to the contrary, neither the Corporation nor the Warrant Agent nor any agent thereof shall have any responsibility or liability for: 

 

	 	(i)	the electronic records maintained by the Depository relating to any ownership interests or any other interests in the Warrants or the depository system maintained by the Depository, or payments made on account of any
ownership interest or any other interest of any person in any Warrant represented by an electronic position in the book entry registration system (other than the Depository or its nominee); 

 

	 	(ii)	maintaining, supervising or reviewing any records of the Depository or any Book Entry Only Participant relating to any such interest; or 

 

	 	(iii)	any advice or representation made or given by the Depository or those contained herein that relate to the rules and regulations of the Depository or any action to be taken by the Depository on its own direction or at
the direction of any Book Entry Only Participant. 

  

	 	(h)	The Corporation may terminate the application of this Section 2.6 in its sole discretion in which case all Warrants shall be evidenced by Warrant Certificates registered in the name of a Person other than the
Depository. 

  

	2.7	Warrant Certificate 

  

	 	(a)	For Warrants issued in certificated form, the form of certificate representing Warrants shall be substantially as set out in Schedule “A” hereto or such other form as is authorized from time to time by the
Warrant Agent, subject to the consent of the Corporation. Each Warrant Certificate shall be Authenticated manually on behalf of the Warrant Agent. Each Warrant Certificate shall be signed by any two duly authorized signatories of the Corporation;
whose signature shall appear on the Warrant Certificate and may be printed, lithographed or otherwise mechanically reproduced thereon and, in such event, certificates so signed are as valid and binding upon the Corporation as if it had been signed
manually. Any Warrant Certificate which has two signatures as hereinbefore provided shall be valid notwithstanding that one or more of the persons whose signature is printed, lithographed or mechanically reproduced no longer holds office at the date
of issuance of such certificate. The Warrant Certificates may be engraved, printed or lithographed, or partly in one form and partly in another, as the Warrant Agent may determine. 

 

	 	(b)	 The Warrant Agent shall Authenticate Uncertificated Warrants (whether upon original issuance, exchange, registration of transfer, partial payment, or
otherwise) by completing its Internal Procedures and the Corporation shall, and hereby acknowledges that it shall, thereupon be deemed to have duly and validly issued such Uncertificated Warrants under this Indenture. Such Authentication shall be
conclusive evidence that such Uncertificated Warrant has been duly issued hereunder and that the holder or holders are entitled to the benefits of this Indenture. The register shall be final and conclusive evidence as to all

  
 - 14 - 

	 	
matters relating to Uncertificated Warrants with respect to which this Indenture requires the Warrant Agent to maintain records or accounts. In case of differences between the register at any
time and any other time the register at the later time shall be controlling, absent manifest error and such Uncertificated Warrants are binding on the Corporation. 

 

	 	(c)	Any Warrant Certificate validly issued in accordance with the terms of this Indenture in effect at the time of issue of such Warrant Certificate shall, subject to the terms of this Indenture and applicable law, validly
entitle the holder to acquire the number of Common Shares set out in such Warrant Certificate in accordance with the terms hereof, notwithstanding that the form of such Warrant Certificate may not be in the form currently required by this Indenture.

  

	 	(d)	No Warrant shall be considered issued and shall be valid or obligatory or shall entitle the holder thereof to the benefits of this Indenture, until it has been Authenticated by the Warrant Agent. Authentication by the
Warrant Agent, including by way of entry on the register, shall not be construed as a representation or warranty by the Warrant Agent as to the validity of this Indenture or of such Warrant Certificates or Uncertificated Warrants (except the due
Authentication thereof) or as to the performance by the Corporation of its obligations under this Indenture and the Warrant Agent shall in no respect be liable or answerable for the use made of the Warrants or any of them or of the consideration
thereof. Authentication by the Warrant Agent shall be conclusive evidence as against the Corporation that the Warrants so Authenticated have been duly issued hereunder and that the holder thereof is entitled to the benefits of this Indenture.

  

	 	(e)	No Certificated Warrant shall be considered issued and Authenticated or, if Authenticated, shall be obligatory or shall entitle the holder thereof to the benefits of this Indenture, until it has been Authenticated by
manual signature by or on behalf of the Warrant Agent substantially in the form of the Warrant set out in Schedule “A” hereto. Such Authentication on any such Certificated Warrant shall be conclusive evidence that such Certificated Warrant
is duly Authenticated and is valid and a binding obligation of the Corporation and that the holder is entitled to the benefits of this Indenture. 

  

	 	(f)	No Uncertificated Warrant shall be considered issued and shall be obligatory or shall entitle the holder thereof to the benefits of this Indenture, until it has been Authenticated by entry on the register of the
particulars of the Uncertificated Warrant. Such entry on the register of the particulars of an Uncertificated Warrant shall be conclusive evidence that such Uncertificated Warrant is a valid and binding obligation of the Corporation and that the
holder is entitled to the benefits of this Indenture. 

  

	 	(g)	The Authentication by the Warrant Agent of any Warrants whether by way of entry on the register or otherwise shall not be construed as a representation or warranty by the Warrant Agent as to the validity of the
Indenture or such Warrants (except the due Authentication thereof) or as to the performance by the Corporation of its obligations under this Indenture and the Warrant Agent shall in no respect be liable or answerable for the use made of the Warrants
or any of them or the proceeds thereof. 

  
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	2.8	Legends 

  

	 	(a)	Each Warrant Certificate evidencing a Put Option Warrant and each Warrant Certificate issued in exchange therefor or in substitution thereof shall bear or be deemed to bear the following legends or such variations
thereof as the Corporation may prescribe from time to time: 

 “THESE WARRANTS AND THE SECURITIES DELIVERABLE UPON THE
EXERCISE THEREOF HAVE NOT BEEN AND WILL NOT BE REGISTERED UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED (THE “U.S. SECURITIES ACT”). THESE SECURITIES MAY BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED ONLY
(A) TO THE CORPORATION, (B) IF THE SECURITIES HAVE BEEN REGISTERED IN COMPLIANCE WITH THE REGISTRATION REQUIREMENTS UNDER THE U.S. SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS (C) IN COMPLIANCE WITH THE
EXEMPTION FROM THE REGISTRATION REQUIREMENTS UNDER THE U.S. SECURITIES ACT IN ACCORDANCE WITH RULE 144 THEREUNDER, IF APPLICABLE, AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS, OR (D) 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, AND THE HOLDER HAS, PRIOR TO SUCH SALE, FURNISHED TO THE CORPORATION AN OPINION OF COUNSEL OF RECOGNIZED STANDING, OR
OTHER EVIDENCE OF EXEMPTION, REASONABLY SATISFACTORY TO THE CORPORATION. HEDGING TRANSACTIONS INVOLVING THE SECURITIES REPRESENTED HEREBY MAY NOT BE CONDUCTED UNLESS IN COMPLIANCE WITH U.S. SECURITIES LAWS. 

THE SECURITIES EVIDENCED HEREBY AND THE SECURITIES ISSUABLE UPON EXERCISE HEREOF HAVE NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OR U.S.
STATE SECURITIES LAWS. THESE WARRANTS MAY NOT BE EXERCISED IN THE UNITED STATES OR BY OR ON BEHALF OF, OR FOR THE ACCOUNT OR BENEFIT OF, A U.S. PERSON UNLESS THIS SECURITY AND THE COMMON SHARES ISSUABLE UPON EXERCISE OF THIS SECURITY HAVE BEEN
REGISTERED UNDER THE U.S. SECURITIES ACT AND THE APPLICABLE STATE SECURITIES LEGISLATION OR AN EXEMPTION FROM SUCH REGISTRATION REQUIREMENTS IS AVAILABLE. “UNITED STATES” AND “U.S. PERSON” ARE AS DEFINED BY REGULATION S UNDER THE
U.S. SECURITIES ACT.”; 
 The Warrant Agent shall be entitled to request any other documents that it may require in accordance with its
internal policies for the removal of the legend set forth above. 
  

	 	(b)	Each Warrant evidenced by the CDS Global Warrant originally issued in Canada and held by the Depository, and each CDS Global Warrant issued in exchange therefor or in substitution thereof shall bear or be deemed to bear
the following legend or such variations thereof as the Corporation may prescribe from time to time: 

 “UNLESS THIS
CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF CDS CLEARING AND DEPOSITORY SEVICES INC. (“CDS”) TO COHBAR, INC. (THE “ISSUER”) OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE
ISSUED IN RESPECT THEREOF IS REGISTERED IN THE NAME OF CDS & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN 

  
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AUTHORIZED REPRESENTATIVE OF CDS (AND ANY PAYMENT IS MADE TO CDS & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF CDS), ANY TRANSFER, PLEDGE OR OTHER USE
HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED HOLDER HEREOF, CDS & CO., HAS A PROPERTY INTEREST IN THE SECURITIES REPRESENTED BY THIS CERTIFICATE HEREIN AND IT IS A VIOLATION OF ITS RIGHTS FOR ANOTHER
PERSON TO HOLD, TRANSFER OR DEAL WITH THIS CERTIFICATE.” 
  

	 	(c)	Notwithstanding any other provisions of this Indenture, in processing and registering transfers of Warrants, no duty or responsibility whatsoever shall rest upon the Warrant Agent to determine the compliance by any
transferor or transferee with the terms of the legend contained in subsections 2.8(1) or 2.8(2), or with the relevant securities laws or regulations, including, without limitation, Regulation S, and the Warrant Agent shall be entitled to assume that
all transfers are legal and proper. 

  

	2.9	Register of Warrants 

  

	 	(a)	The Warrant Agent shall maintain records and accounts concerning the Warrants, whether certificated or uncertificated, which shall contain the information called for below with respect to each Warrant, together with
such other information as may be required by law or as the Warrant Agent may elect to record. All such information shall be kept in one set of accounts and records which the Warrant Agent shall designate (in such manner as shall permit it to be so
identified as such by an unaffiliated party) as the register of the holders of Warrants. The information to be entered for each account in the register of Warrants at any time shall include (without limitation): 

 

	 	(i)	the name and address of the holder of the Warrants, the date of Authentication thereof and the number of Warrants; 

  

	 	(ii)	whether such Warrant is a Certificated Warrant or an Uncertificated Warrant and, if a Warrant Certificate, the unique number or code assigned to and imprinted thereupon and, if an Uncertificated Warrant, the unique
number or code assigned thereto if any; 

  

	 	(iii)	a register of transfers in which all transfers of Warrants and the date and other particulars of each transfer shall be entered. 

The register shall be available for inspection by the Corporation and or any Warrantholder during the Warrant Agent’s regular business
hours on a Business Day and upon payment to the Warrant Agent of its reasonable fees. Any Warrantholder exercising such right of inspection shall first provide an affidavit in form satisfactory to the Corporation and the Warrant Agent stating the
name and address of the Warrantholder and agreeing not to use the information therein except in connection with an effort to call a meeting of Warrantholders or to influence the voting of Warrantholders at any meeting of Warrantholders. 

 

	 	(b)	 Once an Uncertificated Warrant has been Authenticated, the information set forth in the register with respect thereto at the time of Authentication
may be altered, modified, amended, supplemented or otherwise changed only to reflect exercise or proper 

  
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instructions to the Warrant Agent from the holder as provided herein, except that the Warrant Agent may act unilaterally to make purely administrative changes internal to the Warrant Agent and
changes to correct errors. Each person who becomes a holder of an Uncertificated Warrant, by his, her or its acquisition thereof shall be deemed to have irrevocably (i) consented to the foregoing authority of the Warrant Agent to make such
minor error corrections and (ii) agreed to pay to the Warrant Agent, promptly upon written demand, the full amount of all loss and expense (including without limitation reasonable legal fees of the Corporation and the Warrant Agent plus
interest, at an appropriate then prevailing rate of interest to the Warrant Agent), sustained by the Corporation or the Warrant Agent as a proximate result of such error if but only if and only to the extent that such present or former holder
realized any benefit as a result of such error and could reasonably have prevented, forestalled or minimized such loss and expense by prompt reporting of the error or avoidance of accepting benefits thereof whether or not such error is or should
have been timely detected and corrected by the Warrant Agent; provided, that no person who is a bona fide purchaser shall have any such obligation to the Corporation or to the Warrant Agent. 

 

	2.10	Issue in Substitution for Warrant Certificates Lost, etc. 

  

	 	(a)	If any Warrant Certificate becomes mutilated or is lost, destroyed or stolen, the Corporation, subject to applicable law, shall issue and thereupon the Warrant Agent shall certify and deliver, a new Warrant Certificate
of like tenor, and bearing the same legend, if applicable, as the one mutilated, lost, destroyed or stolen in exchange for and in place of and upon cancellation of such mutilated Warrant Certificate, or in lieu of and in substitution for such lost,
destroyed or stolen Warrant Certificate, and the substituted Warrant Certificate shall be in a form approved by the Warrant Agent and the Warrants evidenced thereby shall be entitled to the benefits hereof and shall rank equally in accordance with
its terms with all other Warrants issued or to be issued hereunder. 

  

	 	(b)	The applicant for the issue of a new Warrant Certificate pursuant to this Section 2.10 shall bear the cost of the issue thereof and in case of loss, destruction or theft shall, as a condition precedent to the
issuance thereof, furnish to the Corporation and to the Warrant Agent such evidence of ownership and of the loss, destruction or theft of the Warrant Certificate so lost, destroyed or stolen as shall be satisfactory to the Corporation and to the
Warrant Agent, in their sole discretion, and such applicant shall also be required to furnish an indemnity and surety bond in amount and form satisfactory to the Corporation and the Warrant Agent, in their sole discretion, and shall pay the
reasonable charges of the Corporation and the Warrant Agent in connection therewith. 

  

	2.11	Exchange of Warrant Certificates 

  

	 	(a)	Any one or more Warrant Certificates representing any number of Warrants may, upon compliance with the reasonable requirements of the Warrant Agent (including compliance with applicable securities legislation), be
exchanged for one or more other Warrant Certificates representing the same aggregate number of Warrants, and bearing the same legend, if applicable, as represented by the Warrant Certificate or Warrant Certificates so exchanged. 

 

	 	(b)	Warrant Certificates may be exchanged only at the Warrant Agency or at any other place that is designated by the Corporation with the approval of the Warrant Agent. Any Warrant Certificate from the holder (or such other
instructions, in form satisfactory to the Warrant Agent), tendered for exchange shall be surrendered to the Warrant Agency and cancelled by the Warrant Agent. 

  
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	 	(c)	Warrant Certificates exchanged for Warrant Certificates that bear the legend set forth in Section 2.8(a) shall bear the same legend. 

 

	2.12	Transfer and Ownership of Warrants 

  

	 	(a)	The Warrants may only be transferred on the register kept by the Warrant Agent at the Warrant Agency by the holder or its legal representatives or its attorney duly appointed by an instrument in writing in form and
execution satisfactory to the Warrant Agent only upon (a) in the case of a Warrant Certificate, surrendering to the Warrant Agent at the Warrant Agency the Warrant Certificates representing the Warrants to be transferred together with a duly
executed transfer form as set forth in Schedule :“B” and (b) in the case of Book Entry Only Warrants, in accordance with procedures prescribed by the Depository under the book entry registration system, and (c) upon compliance
with: 

  

	 	(i)	the conditions herein; 

  

	 	(ii)	such reasonable requirements as the Warrant Agent may prescribe; and 

  

	 	(iii)	all applicable securities legislation and requirements of regulatory authorities; 

 and such
transfer shall be duly noted in such register by the Warrant Agent. Upon compliance with such requirements, the Warrant Agent shall issue to the transferee of a Warrant Certificate, or the Warrant Agent shall Authenticate and deliver a Warrant
Certificate upon request that part of the CDS Global Warrant be certificated. Transfers within the systems of the Depository are not the responsibility of the Warrant Agent and will not be noted on the register maintained by the Warrant Agent. 

 

	 	(b)	If a Warrant Certificate tendered for transfer bears the legend set forth in Section 2.8(a), the Warrant Agent shall not register such transfer unless the transferor has provided the Warrant Agent with the Warrant
Certificate and (A) the transfer is made to the Corporation or (B) a declaration to the effect set forth in Schedule “B” to this Warrant Indenture, or in such other form as the Corporation may from time to time prescribe, is
delivered to the Warrant Agent, and if required by the Warrant Agent, the transferor provides an opinion of counsel of recognized standing, reasonably satisfactory to the Corporation and the Warrant Agent that the transfer is in compliance with
applicable state laws and the U.S. Securities Act. 

  

	 	(c)	Subject to the provisions of this Indenture, Applicable Legislation and applicable law, the Warrantholder shall be entitled to the rights and privileges attaching to the Warrants, and the issue of Common Shares by the
Corporation upon the exercise of Warrants in accordance with the terms and conditions herein contained shall discharge all responsibilities of the Corporation and the Warrant Agent with respect to such Warrants and neither the Corporation nor the
Warrant Agent shall be bound to inquire into the title of any such holder. 

  
 - 19 - 

	2.13	Cancellation of Surrendered Warrants 

 All Warrant Certificates surrendered pursuant to
Article 3 shall be cancelled by the Warrant Agent and upon such circumstances all such Uncertificated Warrants shall be deemed cancelled and so noted on the register by the Warrant Agent. Upon request by the Corporation, the Warrant Agent shall
furnish to the Corporation a cancellation certificate identifying the Warrant Certificates so cancelled, the number of Warrants evidenced thereby, the number of Common Shares, if any, issued pursuant to such Warrants and the details of any Warrant
Certificates issued in substitution or exchange for such Warrant Certificates cancelled. 
 ARTICLE 3 

EXERCISE OF WARRANTS 
  

	3.1	Right of Exercise 

 Subject to the provisions hereof, each Registered Warrantholder may
exercise the right conferred on such holder to subscribe for and purchase one Common Share for each Warrant after the Issue Date and prior to the Expiry Time and in accordance with the conditions herein. 

 

	3.2	Warrant Exercise 

  

	 	(a)	Registered holders of Warrant Certificates who wish to exercise the Warrants held by them in order to acquire Common Shares must complete the exercise form (the “Exercise Notice”) attached to the
Warrant Certificate(s) which form is attached hereto as Schedule “C”, which may be amended by the Corporation with the consent of the Warrant Agent, if such amendment does not, in the reasonable opinion of the Corporation and the Warrant
Agent, which may be based on the advice of Counsel, materially and adversely affect the rights, entitlements and interests of the Warrantholders, and deliver such certificate(s), the executed Exercise Notice and a certified cheque, bank draft or
money order payable to or to the order of the Corporation for the aggregate Exercise Price to the Warrant Agent at the Warrant Agency. The Warrants represented by a Warrant Certificate shall be deemed to be surrendered upon personal delivery of such
certificate, Exercise Notice and aggregate Exercise Price or, if such documents are sent by mail or other means of transmission, upon actual receipt thereof by the Warrant Agent at the office referred to above. 

 

	 	(b)	A Registered holder of Uncertificated Warrants evidenced by a security entitlement in respect of Warrants must complete the Exercise Notice and deliver the executed Exercise Notice and a certified cheque, bank draft or
money order payable to or to the order of the Corporation for the aggregate Exercise Price to the Warrant Agent at the Warrant Agency. The Uncertificated Warrants shall be deemed to be surrendered upon receipt of the Exercise Notice and aggregate
Exercise Price or, if such documents are sent by mail or other means of transmission, upon actual receipt thereof by the Warrant Agent at the office referred to above. 

 

	 	(c)	 A beneficial owner of Uncertificated Warrants who desires to exercise his, her or its Warrants must do so by causing a Book Entry Only Participant to
deliver to the Depository on behalf of the entitlement holder, notice of the owner’s intention to exercise Warrants in a manner acceptable to the Depository. Forthwith upon receipt by the Depository of such notice, as well as payment for the
aggregate Exercise Price, the Depository shall deliver to the Warrant Agent confirmation of its intention to exercise 

  
 - 20 - 

 
Warrants (a “Confirmation”) in a manner acceptable to the Warrant Agent, including by electronic means through a book based registration system. If the Book Entry Only Participant is
not able to make or deliver the foregoing representation by initiating the electronic exercise of the Warrants, then such Warrants shall be withdrawn from the book based registration system, by the Book Entry Only Participant and an individually
registered Warrant Certificate shall be issued by the Warrant Agent to such Beneficial Owner or Book Entry Only Participant and the exercise procedures set forth in Section 3.2(a) shall be followed. 

 

	 	(d)	Payment representing the aggregate Exercise Price must be provided to the appropriate office of the Book Entry Only Participant in a manner acceptable to it. A notice in form acceptable to the Book Entry Only
Participant and payment from such beneficial holder should be provided to the Book Entry Only Participant sufficiently in advance so as to permit the Book Entry Only Participant to deliver notice and payment to the Depository and for the
Depository in turn to deliver notice and payment to the Warrant Agent prior to Expiry Time. The Depository will initiate the exercise by way of the Confirmation and forward the aggregate Exercise Price electronically to the Warrant Agent and the
Warrant Agent will execute the exercise by issuing to the Depository through the book entry registration system the Common Shares to which the exercising Warrantholder is entitled pursuant to the exercise. Any expense associated with the exercise
process will be for the account of the entitlement holder exercising the Warrants and/or the Book Entry Only Participant exercising the Warrants on its behalf. 

  

	 	(e)	By causing a Book Entry Only Participant to deliver notice to the Depository, a Warrantholder shall be deemed to have irrevocably surrendered his or her Warrants so exercised and appointed such Book Entry Only
Participant to act as his or her exclusive settlement agent with respect to the exercise and the receipt of Common Shares in connection with the obligations arising from such exercise. 

 

	 	(f)	Any notice which the Depository determines to be incomplete, not in proper form or not duly executed shall for all purposes be void and of no effect and the exercise to which it relates shall be considered for all
purposes not to have been exercised thereby. A failure by a Book Entry Only Participant to exercise or to give effect to the settlement thereof in accordance with the Warrantholder’s instructions will not give rise to any obligations or
liability on the part of the Corporation or Warrant Agent to the Book Entry Only Participant or the Warrantholder. 

  

	 	(g)	Any exercise form or Exercise Notice referred to in this Section 3.2 shall be signed by the Registered Warrantholder, or its executors or administrators or other legal representatives or an attorney of the
Registered Warrantholder, duly appointed by an instrument in writing satisfactory to the Warrant Agent but such exercise form need not be executed by the Depository. 

 

	 	(h)	Any exercise referred to in this Section 3.2 shall require that the entire Exercise Price for Common Shares subscribed must be paid at the time of subscription and such Exercise Price and original Exercise Notice
executed by the Registered Warrantholder or the Confirmation from the Depository must be received by the Warrant Agent prior to the Expiry Time. 

  
 - 21 - 

	 	(i)	Warrants may only be exercised pursuant to this Section 3.2 by or on behalf of a Registered Warrantholder, as applicable, who makes the certifications set forth on the Exercise Notice set out in Schedule
“C” or as provided herein. 

  

	 	(j)	If the form of Exercise Notice set forth in the Warrant Certificate shall have been amended, the Corporation shall cause the amended Exercise Notice to be forwarded to all Registered Warrantholders. 

 

	 	(k)	Exercise Notices and Confirmations must be delivered to the Warrant Agent at any time during the Warrant Agent’s actual business hours on any Business Day prior to the Expiry Time. Any Exercise Notice or
Confirmations received by the Warrant Agent after business hours on any Business Day other than the Expiry Time will be deemed to have been received by the Warrant Agent on the next following Business Day. 

 

	 	(l)	Any Warrant with respect to which a Confirmation is not received by the Warrant Agent before the Expiry Time shall be deemed to have expired and become void and all rights with respect to such Warrants shall terminate
and be cancelled. 

  

	3.3	Prohibition on Exercise by U.S. Persons; Legended Certificates; Special Conditions to Exercise of Put Unit Warrants. 

  

	 	(a)	If the issuance of Common Shares upon the exercise of any Warrants requires the maintenance of an effective Registration Statement under the U.S. Securities Act with respect to such Common Shares, then in no event shall
such Common Shares be issued except pursuant to an effective Registration Statement under the U.S. Securities Act and the Corporation causes to be delivered to the holder a U.S. Prospectus; provided however, that in the absence of an effective
Registration Statement, subject to applicable law, a holder of any Warrant may: 

  

	 	(i)	exercise such Warrants, if the holder is not a U.S. Purchaser and the holder delivers a duly completed and executed Warrant Exercise Certification certifying that the holder: (A)(1) is not in the United States;
(2) is not a U.S. Person and is not exercising the Warrants for, or on behalf or benefit of, a U.S. Person or person in the United States; (3) did not execute or deliver the Warrant Exercise Notice in the United States; (4) agrees not
to engage in hedging transactions with regard to the Securities prior to the expiration of the one year distribution compliance period set forth in Rule 903(b)(3) of Regulation S; (5) acknowledges that the Common Shares issuable upon exercise
of the Warrants are “restricted securities” as defined in Rule 144 of the U.S. Securities Act and upon the issuance thereof, and until such time as the same is no longer required under the applicable requirements of the U.S. Securities Act
or applicable U.S. state laws and regulations, the certificates representing the Common Shares will bear a restrictive legend; and (6) acknowledges that the Corporation shall refuse to register any transfer of any securities not made pursuant
to an effective Registration Statement under the U.S. Securities Act, or pursuant to an available exemption from registration under the U.S. Securities Act; and (B) neither the holder nor any affiliate of the holder or other person acting on
the holder’s behalf has engaged in any “directed selling efforts” (as defined in Regulation S) in the United States; or 

  
 - 22 - 

	 	(ii)	exercise such Warrants in a transaction that does not require registration under the U.S. Securities Act or any applicable U.S. state laws and regulations and the holder has (A) delivered a duly completed and
executed Warrant Exercise Certification certifying that the holder is exercising the Warrants pursuant to such exemptions and (B) furnished to the Corporation, prior to such exercise, an opinion of counsel of recognized standing in form and
substance satisfactory to the Corporation to such effect. 

  

	 	(b)	Section 3.3(a) notwithstanding, Put Unit Warrants which bear the legend set forth in Section 2.8(a) may be exercised in the United States by or on behalf of a U.S. Person, and Common Shares issued upon
exercise of any such Warrants may be delivered to an address in the United States, provided that the holder delivers a duly completed and executed Warrant Exercise Certification certifying that the holder (a) is the original purchaser of the
Warrants pursuant to the Corporation’s exercise of its rights pursuant to a certain Put Agreement between the undersigned and the Corporation (the “Put Agreement”), (b) is exercising the Warrants for its own account,
(c) is an “accredited investor” as defined in Rule 501(a) of Regulation D under the U.S. Securities Act at the time of exercise of these Warrants, and (d) the representations and warranties of the holder made in the original Put
Agreement remain true and correct as of the date of exercise of the Warrants. 

  

	 	(c)	Unless the Warrant is exercised pursuant to an effective Registration Statement the certificate representing the Common Shares issued upon exercise of the Warrant will bear a legend substantially in the form set forth
below: 

 THESE SECURITIES HAVE NOT BEEN AND WILL NOT BE REGISTERED UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED
(THE “U.S. SECURITIES ACT”). THESE SECURITIES MAY BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED ONLY (A) TO THE CORPORATION, (B) IF THE SECURITIES HAVE BEEN REGISTERED IN COMPLIANCE WITH THE REGISTRATION REQUIREMENTS
UNDER THE U.S. SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS (C) IN COMPLIANCE WITH THE EXEMPTION FROM THE REGISTRATION REQUIREMENTS UNDER THE U.S. SECURITIES ACT IN ACCORDANCE WITH RULE 144 THEREUNDER, IF APPLICABLE,
AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS, OR (D) 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, AND THE
HOLDER HAS, PRIOR TO SUCH SALE, FURNISHED TO THE CORPORATION AN OPINION OF COUNSEL OF RECOGNIZED STANDING, OR OTHER EVIDENCE OF EXEMPTION, REASONABLY SATISFACTORY TO THE CORPORATION. HEDGING TRANSACTIONS INVOLVING THE SECURITIES REPRESENTED HEREBY
MAY NOT BE CONDUCTED UNLESS IN COMPLIANCE WITH U.S. SECURITIES LAWS. 
  

	 	(d)	 If issuance of Common Shares upon the exercise of any Warrant requires the maintenance of an effective Registration Statement under the U.S.
Securities Act with respect to such Common Shares then the Corporation shall have the authority to suspend the exercise of any such Warrants while such registration statement is not effective. Similarly, a Warrantholder residing in a state where a
required registration or 

  
 - 23 - 

	 	
governmental approval of issuance of the Common Shares is not in effect as of or has not been obtained within a reasonable time after the surrender date of the Warrant Certificate for exercise
shall not be entitled to exercise Warrants, unless in the opinion of counsel to the Corporation such registration or approval in such state shall not be required or the Corporation otherwise authorizes the issuance. In such event, the Warrantholder
shall be entitled to transfer the Warrants to others, but only prior to the Expiry Time for the Warrants being transferred. If no Registration Statement is effective at any time when any Warrant is exercised, such Warrantholder shall be notified
forthwith by the Warrant Agent that such Warrantholder is entitled, at his or her option, to exercise the Warrant only in accordance with the conditions set forth in Sections 3.3(a)(i)-(ii) or 3.3(b) and upon delivery of a Warrant Exercise
Certification to the Warrant Agent and the Corporation. 

  

	 	(e)	Notwithstanding that the Corporation may not have maintained a current Registration Statement in respect of Common Shares under the U.S. Securities Act, no Warrantholder (whether a U.S. Purchaser or otherwise) shall
have any right to receive, and the Corporation shall be under no obligation to pay to any Warrantholder (whether a U.S. Purchaser or otherwise), any cash amount or other consideration or compensation upon exercise of the Warrants, other than as
expressly provided by this Warrant Indenture, and the Corporation shall not be under any obligation to redeem or otherwise purchase any Warrants in any circumstance; provided, however, that nothing in this clause shall limit or restrict any remedies
of the Warrant Agent or any Warrantholder or Warrantholders in respect of a breach by the Corporation of a representation, warranty or covenant hereunder. 

  

	3.4	Transfer Fees and Taxes 

 If any of the Common Shares subscribed for are to be issued to
a person or persons other than the Registered Warrantholder, the Registered Warrantholder shall execute the form of transfer and will comply with such reasonable requirements as the Warrant Agent may stipulate and will pay to the Corporation or the
Warrant Agent on behalf of the Corporation, all applicable transfer or similar taxes and the Corporation will not be required to issue or deliver certificates evidencing Common Shares unless or until such Warrantholder shall have paid to the
Corporation or the Warrant Agent on behalf of the Corporation, the amount of such tax or shall have established to the satisfaction of the Corporation and the Warrant Agent that such tax has been paid or that no tax is due. 

 

	3.5	Warrant Agency 

 To facilitate the exchange, transfer or exercise of Warrants and
compliance with such other terms and conditions hereof as may be required, the Corporation has appointed the Warrant Agency, as the agency at which Warrants may be surrendered for exchange or transfer or at which Warrants may be exercised and the
Warrant Agent has accepted such appointment. The Corporation may from time to time designate alternate or additional places as the Warrant Agency (subject to the Warrant Agent’s prior approval) and will give notice to the Warrant Agent of any
proposed change of the Warrant Agency. Copies of the Warrant register shall also be kept at such other place or places, if any, as the Corporation, with the approval of the Warrant Agent, may designate. The Warrant Agent will from time to time when
requested to do so by the Corporation or any Registered Warrantholder, upon payment of the Warrant Agent’s reasonable charges, furnish a list of the names and addresses of Registered Warrantholders showing the number of Warrants held by each
such Registered Warrantholder. 

  
 - 24 - 

	3.6	Effect of Exercise of Warrant Certificates 

  

	 	(a)	Upon the exercise of Warrant Certificates pursuant to and in compliance with Section 3.2 and subject to Section 3.3 and Section 3.4, the Common Shares to be issued pursuant to the Warrants exercised shall
be deemed to have been issued and the person or persons to whom such Common Shares are to be issued shall be deemed to have become the holder or holders of such Common Shares within five Business Days of the Exercise Date unless the register shall
be closed on such date, in which case the Common Shares subscribed for shall be deemed to have been issued and such person or persons deemed to have become the holder or holders of record of such Common Shares, on the date on which such register is
reopened. It is hereby understood that in order for persons to whom Common Shares are to be issued, to become holders of Common Shares on record on the Exercise Date, beneficial holders must commence the exercise process sufficiently in advance so
that the Warrant Agent is in receipt of all items of exercise at least one Business Day prior to such Exercise Date. 

  

	 	(b)	Within five Business Days after the Exercise Date with respect to a Warrant, the Warrant Agent shall cause to be delivered or mailed to the person or persons in whose name or names the Warrant is registered or, if so
specified in writing by the holder, cause to be delivered to such person or persons at the Warrant Agency where the Warrant Certificate was surrendered, a certificate or certificates for the appropriate number of Common Shares subscribed for, or any
other appropriate evidence of the issuance of Common Shares to such person or persons in respect of Common Shares issued under the book entry registration system. 

 

	3.7	Partial Exercise of Warrants; Fractions 

  

	 	(a)	The holder of any Warrants may exercise his right to acquire a number of whole Common Shares less than the aggregate number which the holder is entitled to acquire. In the event of any exercise of a number of Warrants
less than the number which the holder is entitled to exercise, the holder of Warrants upon such exercise shall, in addition, be entitled to receive, without charge therefor, a new Warrant Certificate(s), bearing the same legend, if applicable, or
other appropriate evidence of Warrants, in respect of the balance of the Warrants held by such holder and which were not then exercised. 

  

	 	(b)	Notwithstanding anything herein contained including any adjustment provided for in Section 4.1, the Corporation shall not be required, upon the exercise of any Warrants, to issue fractions of Common Shares.
Warrants may only be exercised in a sufficient number to acquire whole numbers of Common Shares. 

  

	3.8	Expiration of Warrants 

 Immediately after the Expiry Time, all rights under any Warrant
in respect of which the right of acquisition provided for herein shall not have been exercised shall cease and terminate and each Warrant shall be void and of no further force or effect. 

 

	3.9	Accounting and Recording 

  

	 	(a)	The Warrant Agent shall promptly account to the Corporation with respect to Warrants exercised, and shall promptly forward to the Corporation (or into an account or accounts of the Corporation with the bank or trust
company designated by the Corporation for that 

  
 - 25 - 

	 	
purpose), all monies received by the Warrant Agent on the subscription of Common Shares through the exercise of Warrants. All such monies and any securities or other instruments, from time to
time received by the Warrant Agent, shall be received in trust for, and shall be segregated and kept apart by the Warrant Agent, the Warrantholders and the Corporation as their interests may appear in the register maintained by the Warrant Agent.

  

	 	(b)	The Warrant Agent shall record the particulars of Warrants exercised, which particulars shall include the names and addresses of the persons who become holders of Common Shares on exercise and the Exercise Date, in
respect thereof. The Warrant Agent shall provide such particulars in writing to the Corporation within five Business Days of any request by the Corporation therefor. 

 

	3.10	Securities Restrictions 

 Notwithstanding anything herein contained, Common Shares will
be issued upon exercise of a Warrant only in compliance with the securities laws of any applicable jurisdiction. 
 ARTICLE 4 

ADJUSTMENT OF NUMBER OF COMMON SHARES 

AND EXERCISE PRICE 
  

	4.1	Adjustment of Number of Common Shares and Exercise Price 

 The subscription rights in
effect under the Warrants for Common Shares issuable upon the exercise of the Warrants shall be subject to adjustment from time to time as follows: 
  

	 	(a)	if, at any time during the Adjustment Period, the Corporation shall: 

  

	 	(i)	subdivide, re-divide or change its outstanding Common Shares into a greater number of Common Shares; 

  

	 	(ii)	reduce, combine or consolidate its outstanding Common Shares into a lesser number of Common Shares; or 

  

	 	(iii)	issue Common Shares or securities exchangeable for, or convertible into, Common Shares to all or substantially all of the holders of Common Shares by way of stock dividend or other distribution (other than a
distribution of Common Shares upon the exercise of Warrants or any outstanding options); 

 (any of such events in
Section 4.1(a) (i), (ii) or (iii) being called a “Common Share Reorganization”) then the Exercise Price as of the effective date or record date of such Common Share Reorganization shall in the case of the events referred to
in (i) or (iii) above be decreased in proportion to the number of outstanding Common Shares resulting from such subdivision, re-division, change or distribution, or shall, in the case of the events referred to in (ii) above, be
increased in proportion to the number of outstanding Common Shares resulting from such reduction, combination or consolidation by multiplying the Exercise Price in effect immediately prior to such effective date or record date by a fraction, the
numerator of which shall be the number of Common Shares outstanding on such effective date or record date before giving effect to such Common Share Reorganization and the denominator of which shall be the number of Common

  
 - 26 - 

 
Shares outstanding as of the effective date or record date after giving effect to such Common Shares Reorganization (including, in the case where securities exchangeable for or convertible into
Common Shares are distributed, the number of Common Share that would have been outstanding had such securities been exchanged for or converted into Common Shares on such record date or effective date). Such adjustment shall be made successively
whenever any Common Share Reorganization shall occur. Upon any adjustment of the Exercise Price pursuant to Section 4.1(a), the Exchange Rate shall be contemporaneously adjusted by multiplying the number of Common Shares theretofore obtainable
on the exercise thereof by a fraction of which the numerator shall be the Exercise Price in effect immediately prior to such adjustment and the denominator shall be the Exercise Price resulting from such adjustment; 

 

	 	(b)	if and whenever at any time during the Adjustment Period, the Corporation shall fix a record date for the issuance of rights, options or warrants to all or substantially all the holders of its outstanding Common Shares
entitling them, for a period expiring not more than 45 days after such record date, to subscribe for or purchase Common Shares (or securities convertible or exchangeable into Common Shares) at a price per Common Share (or having a conversion or
exchange price per Common Share) less than 95% of the Current Market Price on such record date (a “Rights Offering”), the Exercise Price shall be adjusted immediately after such record date so that it shall equal the amount
determined by multiplying the Exercise Price in effect on such record date by a fraction, of which the numerator shall be the total number of Common Shares outstanding on such record date plus a number of Common Shares equal to the number arrived at
by dividing the aggregate price of the total number of additional Common Shares offered for subscription or purchase (or the aggregate conversion or exchange price of the convertible or exchangeable securities so offered) by the Current Market
Price, and of which the denominator shall be the total number of Common Shares outstanding on such record date plus the total number of additional Common Shares offered for subscription or purchase or into which the convertible or exchangeable
securities so offered are convertible or exchangeable; any Common Shares owned by or held for the account of the Corporation shall be deemed not to be outstanding for the purpose of any such computation; such adjustment shall be made successively
whenever such a record date is fixed; to the extent that no such rights or warrants are exercised prior to the expiration thereof, the Exercise Price shall be readjusted to the Exercise Price which would then be in effect if such record date had not
been fixed or, if any such rights or warrants are exercised, to the Exercise Price which would then be in effect based upon the number of Common Shares (or securities convertible or exchangeable into Common Shares) actually issued upon the exercise
of such rights or warrants, as the case may be. Upon any adjustment of the Exercise Price pursuant to this Section 4.1(b), the Exchange Rate will be adjusted immediately after such record date so that it will equal the rate determined by
multiplying the Exchange Rate in effect on such record date by a fraction, of which the numerator shall be the Exercise Price in effect immediately prior to such adjustment and the denominator shall be the Exercise Price resulting from such
adjustment. Such adjustment will be made successively whenever such a record date is fixed, provided that if two or more such record dates or record dates referred to in this Section 4.1(b) are fixed within a period of 25 Trading Days, such
adjustment will be made successively as if each of such record dates occurred on the earliest of such record dates; 

  

	 	(c)	 if and whenever at any time during the Adjustment Period the Corporation shall fix a record date for the making of a distribution to all or
substantially all the holders of its outstanding Common Shares of (i) securities of any class, whether of the Corporation or 

  
 - 27 - 

	 	
any other trust (other than Common Shares), (ii) rights, options or warrants to subscribe for or purchase Common Shares (or other securities convertible into or exchangeable for Common
Shares), other than pursuant to a Rights Offering; (iii) evidences of its indebtedness or (iv) any property or other assets then, in each such case, the Exercise Price shall be adjusted immediately after such record date so that it shall
equal the price determined by multiplying the Exercise Price in effect on such record date by a fraction, of which the numerator shall be the total number of Common Shares outstanding on such record date multiplied by the Current Market Price on
such record date, less the excess, if any, of the fair market value on such record date, as determined by the Corporation (whose determination shall be conclusive), of such securities or other assets so issued or distributed over the fair market
value of any consideration received therefor by the Corporation from the holders of the Common Shares, and of which the denominator shall be the total number of Common Shares outstanding on such record date multiplied by the Current Market Price;
and Common Shares owned by or held for the account of the Corporation shall be deemed not to be outstanding for the purpose of any such computation; such adjustment shall be made successively whenever such a record date is fixed; to the extent that
such distribution is not so made, the Exercise Price shall be readjusted to the Exercise Price which would then be in effect if such record date had not been fixed. Upon any adjustment of the Exercise Price pursuant to this Section 4.1(c), the
Exchange Rate will be adjusted immediately after such record date so that it will equal the rate determined by multiplying the Exchange Rate in effect on such record date by a fraction, of which the numerator shall be the Exercise Price in effect
immediately prior to such adjustment and the denominator shall be the Exercise Price resulting from such adjustment; 

  

	 	(d)	 if and whenever at any time during the Adjustment Period, there is a reclassification of the Common Shares or a capital reorganization of the
Corporation other than as described in Section 4.1(a) or a consolidation, amalgamation, arrangement or merger of the Corporation with or into any other body corporate, trust, partnership or other entity, or a sale or conveyance of the property
and assets of the Corporation as an entirety or substantially as an entirety to any other body corporate, trust, partnership or other entity, any Registered Warrantholder who has not exercised its right of acquisition prior to the effective date of
such reclassification, capital reorganization, consolidation, amalgamation, arrangement or merger, sale or conveyance, upon the exercise of such right thereafter, shall be entitled to receive upon payment of the Exercise Price and shall accept, in
lieu of the number of Common Shares that prior to such effective date the Registered Warrantholder would have been entitled to receive, the number of shares or other securities or property of the Corporation or of the body corporate, trust,
partnership or other entity resulting from such merger, amalgamation or consolidation, or to which such sale or conveyance may be made, as the case may be, that such Registered Warrantholder would have been entitled to receive on such
reclassification, capital reorganization, consolidation, amalgamation, arrangement or merger, sale or conveyance, if, on the effective date thereof, as the case may be, the Registered Warrantholder had been the registered holder of the number of
Common Shares to which prior to such effective date it was entitled to acquire upon the exercise of the Warrants. If determined appropriate by the Warrant Agent, relying on advice of Counsel, to give effect to or to evidence the provisions of this
Section 4.1(d), the Corporation, its successor, or such purchasing body corporate, partnership, trust or other entity, as the case may be, shall, prior to or contemporaneously with any such reclassification, capital reorganization,
consolidation, amalgamation, arrangement, merger, sale or conveyance, enter into an indenture which shall provide, to the extent possible, for the application of the provisions 

  
 - 28 - 

	 	
set forth in this Indenture with respect to the rights and interests thereafter of the Registered Warrantholders to the end that the provisions set forth in this Indenture shall thereafter
correspondingly be made applicable, as nearly as may reasonably be, with respect to any shares, other securities or property to which a Registered Warrantholder is entitled on the exercise of its acquisition rights thereafter. Any indenture entered
into between the Corporation and the Warrant Agent pursuant to the provisions of this Section 4.1(d) shall be a supplemental indenture entered into pursuant to the provisions of Article 8 hereof. Any indenture entered into between the
Corporation, any successor to the Corporation or such purchasing body corporate, partnership, trust or other entity and the Warrant Agent shall provide for adjustments which shall be as nearly equivalent as may be practicable to the adjustments
provided in this Section 4.1 and which shall apply to successive reclassifications, capital reorganizations, amalgamations, consolidations, mergers, sales or conveyances; 

 

	 	(e)	in any case in which this Section 4.1 shall require that an adjustment shall become effective immediately after a record date for an event referred to herein, the Corporation may defer, until the occurrence of such
event, issuing to the Registered Warrantholder of any Warrant exercised after the record date and prior to completion of such event the additional Common Shares issuable by reason of the adjustment required by such event before giving effect to such
adjustment; provided, however, that the Corporation shall deliver to such Registered Warrantholder an appropriate instrument evidencing such Registered Warrantholder’s right to receive such additional Common Shares upon the occurrence of the
event requiring such adjustment and the right to receive any distributions made on such additional Common Shares declared in favour of holders of record of Common Shares on and after the relevant date of exercise or such later date as such
Registered Warrantholder would, but for the provisions of this Section 4.1(e), have become the holder of record of such additional Common Shares pursuant to Section 4.1; 

 

	 	(f)	in any case in which Section 4.1(a)(iii), Section 4.1(b) or Section 4.1(c) require that an adjustment be made to the Exercise Price, no such adjustment shall be made if the Registered Warrantholders of
the outstanding Warrants receive, subject to any required stock exchange or regulatory approval, the rights or warrants referred to in Section 4.1(a)(iii), Section 4.1(b) or the shares, rights, options, warrants, evidences of indebtedness
or assets referred to in Section 4.1(c), as the case may be, in such kind and number as they would have received if they had been holders of Common Shares on the applicable record date or effective date, as the case may be, by virtue of their
outstanding Warrant having then been exercised into Common Shares at the Exercise Price in effect on the applicable record date or effective date, as the case may be; 

 

	 	(g)	the adjustments provided for in this Section 4.1 are cumulative, and shall, in the case of adjustments to the Exercise Price be computed to the nearest whole cent and shall apply to successive subdivisions,
re-divisions, reductions, combinations, consolidations, distributions, issues or other events resulting in any adjustment under the provisions of this Section 4.1, provided that, notwithstanding any other provision of this Section, no
adjustment of the Exercise Price shall be required unless such adjustment would require an increase or decrease of at least 1% in the Exercise Price then in effect; provided, however, that any adjustments which by reason of this Section 4.1(g)
are not required to be made shall be carried forward and taken into account in any subsequent adjustment; and 

  
 - 29 - 

	 	(h)	after any adjustment pursuant to this Section 4.1, the term “Common Shares” where used in this Indenture shall be interpreted to mean securities of any class or classes which, as a result of such
adjustment and all prior adjustments pursuant to this Section 4.1, the Registered Warrantholder is entitled to receive upon the exercise of his Warrant, and the number of Common Shares indicated by any exercise made pursuant to a Warrant shall
be interpreted to mean the number of Common Shares or other property or securities a Registered Warrantholder is entitled to receive, as a result of such adjustment and all prior adjustments pursuant to this Section 4.1, upon the full exercise
of a Warrant. 

  

	4.2	Entitlement to Common Shares on Exercise of Warrant 

 All Common Shares or shares of any
class or other securities, which a Registered Warrantholder is at the time in question entitled to receive on the exercise of its Warrant, whether or not as a result of adjustments made pursuant to this Article 4, shall, for the purposes of the
interpretation of this Indenture, be deemed to be Common Shares which such Registered Warrantholder is entitled to acquire pursuant to such Warrant. 
  

	4.3	No Adjustment for Certain Transactions 

 Notwithstanding anything in this Article 4, no
adjustment shall be made in the acquisition rights attached to the Warrants if the issue of Common Shares is being made pursuant to this Indenture or in connection with (a) any share incentive plan or restricted share plan or share purchase
plan in force from time to time for directors, officers, employees, consultants or other service providers of the Corporation; or (b) the satisfaction of existing instruments issued at the date hereof. 

 

	4.4	Determination by Independent Firm 

 In the event of any question arising with respect to
the adjustments provided for in this Article 4 such question shall be conclusively determined by an independent firm of chartered accountants other than the Auditors, who shall have access to all necessary records of the Corporation, and such
determination shall be binding upon the Corporation, the Warrant Agent, all holders and all other persons interested therein. 
  

	4.5	Proceedings Prior to any Action Requiring Adjustment 

 As a condition precedent to the
taking of any action which would require an adjustment in any of the acquisition rights pursuant to any of the Warrants, including the number of Common Shares which are to be received upon the exercise thereof, the Corporation shall take any action
which may, in the opinion of Counsel, be necessary in order that the Corporation has unissued and reserved in its authorized capital and may validly and legally issue as fully paid and non-assessable all the Common Shares which the holders of such
Warrants are entitled to receive on the full exercise thereof in accordance with the provisions hereof. 
  

	4.6	Certificate of Adjustment 

 The Corporation shall from time to time immediately after the
occurrence of any event which requires an adjustment or readjustment as provided in Section 4.1, deliver a certificate of the Corporation to the Warrant Agent specifying the nature of the event requiring the same and the amount of the
adjustment or readjustment necessitated thereby and setting forth in reasonable detail the method of calculation and the facts upon which such calculation is based, which certificate shall be supported by a

  
 - 30 - 

 
certificate of the Corporation’s Auditors verifying such calculation. The Warrant Agent shall act and rely, and shall be protected in so doing, upon the certificate of the Corporation or of
the Corporation’s Auditor and any other document filed by the Corporation pursuant to this Article 4 for all purposes. 
  

	4.7	Notice of Special Matters 

 The Corporation covenants with the Warrant Agent that, so
long as any Warrant remains outstanding, it will give notice to the Warrant Agent and to the Registered Warrantholders of its intention to fix a record date that is prior to the Expiry Time for any matter for which an adjustment may be required
pursuant to Section 4.1 Such notice shall specify the particulars of such event and the record date for such event, provided that the Corporation shall only be required to specify in the notice such particulars of the event as shall have been
fixed and determined on the date on which the notice is given. The notice shall be given in each case not less than 14 days prior to such applicable record date. If notice has been given and the adjustment is not then determinable, the Corporation
shall promptly, after the adjustment is determinable, file with the Warrant Agent a computation of the adjustment and give notice to the Registered Warrantholders of such adjustment computation. 

 

	4.8	No Action after Notice 

 The Corporation covenants with the Warrant Agent that it will
not close its transfer books or take any other corporate action which might deprive the Registered Warrantholder of the opportunity to exercise its right of acquisition pursuant thereto during the period of 14 days after the giving of the
certificate or notices set forth in Section 4.6 and Section 4.7. 
  

	4.9	Other Action 

 If the Corporation, after the date hereof, shall take any action affecting
the Common Shares other than action described in Section 4.1, which in the reasonable opinion of the directors of the Corporation would materially affect the rights of Registered Warrantholders, the Exercise Price and/or Exchange Rate, the
number of Common Shares which may be acquired upon exercise of the Warrants shall be adjusted in such manner and at such time, by action of the directors, acting reasonably and in good faith, in their sole discretion as they may determine to be
equitable to the Registered Warrantholders in the circumstances, provided that no such adjustment will be made unless any requisite prior approval of any stock exchange on which the Common Shares are listed for trading has been obtained. 

 

	4.10	Protection of Warrant Agent 

 The Warrant Agent shall not: 

 

	 	(a)	at any time be under any duty or responsibility to any Registered Warrantholder to determine whether any facts exist which may require any adjustment contemplated by Section 4.1, or with respect to the nature or
extent of any such adjustment when made, or with respect to the method employed in making the same; 

  

	 	(b)	be accountable with respect to the validity or value (or the kind or amount) of any Common Shares or of any other securities or property which may at any time be issued or delivered upon the exercise of the rights
attaching to any Warrant; 

  

	 	(c)	be responsible for any failure of the Corporation to issue, transfer or deliver Common Shares or certificates for the same upon the surrender of any Warrants for the purpose of the exercise of such rights or to comply
with any of the covenants contained in this Article; and 

  
 - 31 - 

	 	(d)	incur any liability or be in any way responsible for the consequences of any breach on the part of the Corporation of any of the representations, warranties or covenants herein contained or of any acts of the directors,
officers, employees, agents or servants of the Corporation. 

  

	4.11	Participation by Warrantholder 

 No adjustments shall be made pursuant to this Article 4
if the Registered Warrantholders are entitled to participate in any event described in this Article 4 on the same terms, mutatis mutandis, as if the Registered Warrantholders had exercised their Warrants prior to, or on the effective date or record
date of, such event. 
 ARTICLE 5 

RIGHTS OF THE CORPORATION AND COVENANTS 
  

	5.1	Optional Purchases by the Corporation 

 Subject to compliance with applicable securities
legislation and approval of applicable regulatory authorities, if any, the Corporation may from time to time purchase by private contract or otherwise any of the Warrants. Any such purchase shall be made at the lowest price or prices at which, in
the opinion of the directors, such Warrants are then obtainable, plus reasonable costs of purchase, and may be made in such manner, from such persons and on such other terms as the Corporation, in its sole discretion, may determine. In the case of
Certificated Warrants, Warrant Certificates representing the Warrants purchased pursuant to this Section 5.1 shall forthwith be delivered to and cancelled by the Warrant Agent and reflected accordingly on the register of Warrants. In the case
of Uncertificated Warrants, the Warrants purchased pursuant to this Section 5.1 shall be reflected accordingly on the register of Warrant and in accordance with procedures prescribed by the Depository under the book entry registration system.
No Warrants shall be issued in replacement thereof. 
  

	5.2	General Covenants 

 The Corporation covenants with the Warrant Agent that so long as any
Warrants remain outstanding: 
  

	 	(a)	it will reserve and keep available a sufficient number of Common Shares for the purpose of enabling it to satisfy its obligations to issue Common Shares upon the exercise of the Warrants; 

 

	 	(b)	it will cause the Common Shares from time to time acquired pursuant to the exercise of the Warrants to be duly issued and delivered in accordance with the Warrants and the terms hereof; 

 

	 	(c)	all Common Shares which shall be issued upon exercise of the right to acquire provided for herein shall be fully paid and non-assessable; 

 

	 	(d)	it will use reasonable commercial efforts to maintain its existence; 

  
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	 	(e)	it will use reasonable commercial efforts to maintain the effectiveness of a Registration Statement under the U.S. Securities Act covering the issuance upon exercise of the IPO Unit Warrants and the Compensation Unit
Warrants until the earlier of (i) the Expiry Time or (ii) the date all IPO Unit Warrants and Compensation Unit Warrants have been exercised; 

  

	 	(f)	it will use reasonable commercial efforts to ensure that all Common Shares outstanding or issuable from time to time (including without limitation the Common Shares issuable on the exercise of the Warrants) continue to
be or are listed and posted for trading on the TSXV (or such other North American stock exchange or quotation system acceptable to the Corporation), provided that this clause shall not be construed as limiting or restricting the Corporation from
completing a consolidation, amalgamation, arrangement, takeover bid or merger that would result in the Common Shares ceasing to be listed and posted for trading on the TSXV, so long as the holders of Common Shares receive securities of an entity
which is listed on a stock exchange or quotation system in North American, or cash, or the holders of the Common shares have approved the transaction in accordance with the requirements of applicable corporate and securities laws and the policies of
the TSXV; 

  

	 	(g)	it will make all requisite filings under applicable Canadian securities legislation including those necessary to remain a reporting issuer not in default in each of the provinces and other Canadian jurisdictions where
it is or becomes a reporting issuer; 

  

	 	(h)	generally, it will well and truly perform and carry out all of the acts or things to be done by it as provided in this Indenture; and 

 

	 	(i)	the Corporation will promptly notify the Warrant Agent and the Warrantholders in writing of any default under the terms of this Warrant Indenture which remains unrectified for more than five days following its
occurrence. 

  

	5.3	Warrant Agent’s Remuneration and Expenses 

 The Corporation covenants that it will
pay to the Warrant Agent from time to time reasonable remuneration for its services hereunder and will pay or reimburse the Warrant Agent upon its request for all reasonable expenses, disbursements and advances incurred or made by the Warrant Agent
in the administration or execution of the trusts hereby created (including the reasonable compensation and the disbursements of its Counsel and all other advisers and assistants not regularly in its employ) both before any default hereunder and
thereafter until all duties of the Warrant Agent hereunder shall be finally and fully performed. Any amount owing hereunder and remaining unpaid after 30 days from the invoice date will bear interest at the then current rate charged by the Warrant
Agent against unpaid invoices and shall be payable upon demand. This Section shall survive the resignation or removal of the Warrant Agent and/or the termination of this Indenture. 

 

	5.4	Performance of Covenants by Warrant Agent 

 If the Corporation shall fail to perform any
of its covenants contained in this Indenture, the Warrant Agent may notify the Registered Warrantholders of such failure on the part of the Corporation and may itself perform any of the covenants capable of being performed by it but, subject to
Section 9.2, shall be under no obligation to perform said covenants or to notify the Registered Warrantholders of such performance by it. All sums expended or advanced by the Warrant Agent in so doing shall be repayable as provided in
Section 5.3. No such performance, expenditure or advance by the Warrant Agent shall relieve the Corporation of any default hereunder or of its continuing obligations under the covenants herein contained. 

  
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	5.5	Enforceability of Warrants 

 The Corporation covenants and agrees that it is duly
authorized to create and issue the Warrants to be issued hereunder and that the Warrants, when issued and Authenticated as herein provided, will be valid and enforceable against the Corporation in accordance with the provisions hereof and the terms
hereof and that, subject to the provisions of this Indenture, the Corporation will cause the Common Shares from time to time acquired upon exercise of Warrants issued under this Indenture to be duly issued and delivered in accordance with the terms
of this Indenture. 
 ARTICLE 6 

ENFORCEMENT 
  

	6.1	Suits by Registered Warrantholders 

 All or any of the rights conferred upon any
Registered Warrantholder by any of the terms of this Indenture may be enforced by the Registered Warrantholder by appropriate proceedings but without prejudice to the right which is hereby conferred upon the Warrant Agent to proceed in its own name
to enforce each and all of the provisions herein contained for the benefit of the Registered Warrantholders. 
  

	6.2	Suits by the Corporation 

 The Corporation shall have the right to enforce full payment
of the Exercise Price of all Common Shares issued by the Warrant Agent to a Registered Warrantholder hereunder and shall be entitled to demand such payment from the Registered Warrantholder or alternatively to instruct the Warrant Agent to cancel
the share certificates and amend the securities register accordingly. 
  

	6.3	Immunity of Shareholders, etc. 

 The Warrant Agent and the Warrantholders hereby waive
and release any right, cause of action or remedy now or hereafter existing in any jurisdiction against any incorporator or any past, present or future shareholder, trustee, employee or agent of the Corporation or any successor Corporation on any
covenant, agreement, representation or warranty by the Corporation herein. 
  

	6.4	Waiver of Default 

 Upon the happening of any default hereunder: 

 

	 	(a)	the Registered Warrantholders of not less than 51% of the Warrants then outstanding shall have power (in addition to the powers exercisable by Extraordinary Resolution) by requisition in writing to instruct the Warrant
Agent to waive any default hereunder and the Warrant Agent shall thereupon waive the default upon such terms and conditions as shall be prescribed in such requisition; or 

 

	 	(b)	the Warrant Agent shall have power to waive any default hereunder upon such terms and conditions as the Warrant Agent may deem advisable, on the advice of Counsel, if, in the Warrant Agent’s opinion, based on the
advice of Counsel, the same shall have been cured or adequate provision made therefor; 

  
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 provided that no delay or omission of the Warrant Agent or of the Registered Warrantholders to
exercise any right or power accruing upon any default shall impair any such right or power or shall be construed to be a waiver of any such default or acquiescence therein and provided further that no act or omission either of the Warrant Agent or
of the Registered Warrantholders in the premises shall extend to or be taken in any manner whatsoever to affect any subsequent default hereunder of the rights resulting therefrom. 

ARTICLE 7 
 MEETINGS
OF REGISTERED WARRANTHOLDERS 
  

	7.1	Right to Convene Meetings 

 The Warrant Agent may at any time and from time to time, and
shall on receipt of a written request of the Corporation or of a Warrantholders’ Request and upon being indemnified and funded to its reasonable satisfaction by the Corporation or by the Registered Warrantholders signing such
Warrantholders’ Request against the costs which may be incurred in connection with the calling and holding of such meeting, convene a meeting of the Registered Warrantholders. If the Warrant Agent fails to so call a meeting within seven days
after receipt of such written request of the Corporation or within 30 days after receipt of such Warrantholders’ Request and the indemnity and funding given as aforesaid, the Corporation or such Registered Warrantholders, as the case may be,
may convene such meeting. Every such meeting shall be held in the City of Vancouver, British Columbia or at such other place as may be approved or determined by the Warrant Agent. 

 

	7.2	Notice 

 At least 21 days’ prior written notice of any meeting of Registered
Warrantholders shall be given to the Registered Warrantholders in the manner provided for in Section 10.2 and a copy of such notice shall be sent by mail to the Warrant Agent (unless the meeting has been called by the Warrant Agent) and to the
Corporation (unless the meeting has been called by the Corporation). Such notice shall state the time when and the place where the meeting is to be held, shall state briefly the general nature of the business to be transacted thereat and shall
contain such information as is reasonably necessary to enable the Registered Warrantholders to make a reasoned decision on the matter, but it shall not be necessary for any such notice to set out the terms of any resolution to be proposed or any of
the provisions of this Section 7.2. 
  

	7.3	Chairman 

 An individual (who need not be a Registered Warrantholder) designated in
writing by the Warrant Agent shall be chairman of the meeting and if no individual is so designated, or if the individual so designated is not present within fifteen minutes from the time fixed for the holding of the meeting, the Registered
Warrantholders present in person or by proxy shall choose an individual present to be chairman. 
  

	7.4	Quorum 

 Subject to the provisions of Section 7.11, at any meeting of the Registered
Warrantholders a quorum shall consist of Registered Warrantholder(s) present in person or by proxy and entitled to purchase at least (a) 50% of the aggregate number of Common Shares which could be acquired pursuant to all the then outstanding
Warrants, if summoned by Registered Warrantholders or on a Warrantholders’ request or (b) 10% of the aggregate number of Common Shares which could be acquired pursuant to all the then outstanding Warrants, if summoned by the Corporation.
If a quorum of the 

  
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Registered Warrantholders shall not be present within thirty minutes from the time fixed for holding any meeting, the meeting, if summoned by Registered Warrantholders or on a
Warrantholders’ Request, shall be dissolved; but in any other case the meeting shall be adjourned to the same day in the next week (unless such day is not a Business Day, in which case it shall be adjourned to the next following Business Day)
at the same time and place and no notice of the adjournment need be given. Any business may be brought before or dealt with at an adjourned meeting which might have been dealt with at the original meeting in accordance with the notice calling the
same. No business shall be transacted at any meeting unless a quorum be present at the commencement of business. At the adjourned meeting the Registered Warrantholders present in person or by proxy shall form a quorum and may transact the business
for which the meeting was originally convened, notwithstanding that they may not be entitled to acquire at least 10% of the aggregate number of Common Shares which may be acquired pursuant to all then outstanding Warrants. 

 

	7.5	Power to Adjourn 

 The chairman of any meeting at which a quorum of the Registered
Warrantholders is present may, with the consent of the meeting, adjourn any such meeting, and no notice of such adjournment need be given except such notice, if any, as the meeting may prescribe. 

 

	7.6	Show of Hands 

 Every question submitted to a meeting shall be decided in the first place
by a majority of the votes given on a show of hands except that votes on an Extraordinary Resolution shall be given in the manner hereinafter provided. At any such meeting, unless a poll is duly demanded as herein provided, a declaration by the
chairman that a resolution has been carried or carried unanimously or by a particular majority or lost or not carried by a particular majority shall be conclusive evidence of the fact. 

 

	7.7	Poll and Voting 

  

	 	(a)	On every Extraordinary Resolution, and on any other question submitted to a meeting and after a vote by show of hands when demanded by the chairman or by one or more of the Registered Warrantholders acting in person or
by proxy and entitled to acquire in the aggregate at least 5% of the aggregate number of Common Shares which could be acquired pursuant to all the Warrants then outstanding, a poll shall be taken in such manner as the chairman shall direct.
Questions other than those required to be determined by Extraordinary Resolution shall be decided by a majority of the votes cast on the poll. 

  

	 	(b)	On a show of hands, every person who is present and entitled to vote, whether as a Registered Warrantholder or as proxy for one or more absent Registered Warrantholders, or both, shall have one vote. On a poll, each
Registered Warrantholder present in person or represented by a proxy duly appointed by instrument in writing shall be entitled to one vote in respect of each Warrant then held or represented by it. A proxy need not be a Registered Warrantholder. The
chairman of any meeting shall be entitled, both on a show of hands and on a poll, to vote in respect of the Warrants, if any, held or represented by him. 

  

	7.8	Regulations 

  

	 	(a)	The Warrant Agent, or the Corporation with the approval of the Warrant Agent, may from time to time make and from time to time vary such regulations as it shall think fit for the setting of the record date for a meeting
for the purpose of determining Registered Warrantholders entitled to receive notice of and to vote at the meeting. 

  
 - 36 - 

	 	(b)	Any regulations so made shall be binding and effective and the votes given in accordance therewith shall be valid and shall be counted. Save as such regulations may provide, the only persons who shall be recognized at
any meeting as a Registered Warrantholder, or be entitled to vote or be present at the meeting in respect thereof (subject to Section 7.9), shall be Registered Warrantholders or proxies of Registered Warrantholders. 

 

	7.9	Corporation and Warrant Agent May be Represented 

 The Corporation and the Warrant Agent,
by their respective directors, officers, agents, and employees and the Counsel for the Corporation and for the Warrant Agent may attend any meeting of the Registered Warrantholders. 

 

	7.10	Powers Exercisable by Extraordinary Resolution 

 In addition to all other powers
conferred upon them by any other provisions of this Indenture or by law, the Registered Warrantholders at a meeting shall, subject to the provisions of Section 7.11, have the power exercisable from time to time by Extraordinary Resolution: 

 

	 	(a)	to agree to any modification, abrogation, alteration, compromise or arrangement of the rights of Registered Warrantholders or the Warrant Agent in its capacity as warrant agent hereunder (subject to the Warrant
Agent’s prior consent, acting reasonably) or on behalf of the Registered Warrantholders against the Corporation whether such rights arise under this Indenture or otherwise; 

 

	 	(b)	to amend, alter or repeal any Extraordinary Resolution previously passed or sanctioned by the Registered Warrantholders; 

  

	 	(c)	to direct or to authorize the Warrant Agent, subject to Section 9.2(2) hereof, to enforce any of the covenants on the part of the Corporation contained in this Indenture or to enforce any of the rights of the
Registered Warrantholders in any manner specified in such Extraordinary Resolution or to refrain from enforcing any such covenant or right; 

  

	 	(d)	to waive, and to direct the Warrant Agent to waive, any default on the part of the Corporation in complying with any provisions of this Indenture either unconditionally or upon any conditions specified in such
Extraordinary Resolution; 

  

	 	(e)	to restrain any Registered Warrantholder from taking or instituting any suit, action or proceeding against the Corporation for the enforcement of any of the covenants on the part of the Corporation in this Indenture or
to enforce any of the rights of the Registered Warrantholders; 

  

	 	(f)	to direct any Registered Warrantholder who, as such, has brought any suit, action or proceeding to stay or to discontinue or otherwise to deal with the same upon payment of the costs, charges and expenses reasonably and
properly incurred by such Registered Warrantholder in connection therewith; 

  

	 	(g)	to assent to any change in or omission from the provisions contained in this Indenture or any ancillary or supplemental instrument which may be agreed to by the Corporation, and to authorize the Warrant Agent to concur
in and execute any ancillary or supplemental indenture embodying the change or omission; 

  
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	 	(h)	with the consent of the Corporation, such consent not to be unreasonably withheld, to remove the Warrant Agent or its successor in office and to appoint a new warrant agent or warrant agents to take the place of the
Warrant Agent so removed; and 

  

	 	(i)	to assent to any compromise or arrangement with any creditor or creditors or any class or classes of creditors, whether secured or otherwise, and with holders of any shares or other securities of the Corporation.

  

	7.11	Meaning of Extraordinary Resolution 

  

	 	(a)	The expression “Extraordinary Resolution” when used in this Indenture means, subject as hereinafter provided in this Section 7.11 and in Section 7.14, a resolution proposed at a meeting of
Registered Warrantholders duly convened for that purpose and held in accordance with the provisions of this Article 7 and passed by the affirmative votes of Registered Warrantholders holding not less than 66 2/3% of the aggregate number of Warrants
represented in person or by proxy at the meeting and voted on the poll upon such resolution. 

  

	 	(b)	Subject to Section 7.14, votes on an Extraordinary Resolution shall always be given on a poll and no demand for a poll on an Extraordinary Resolution shall be necessary. 

 

	7.12	Powers Cumulative 

 Any one or more of the powers or any combination of the powers in
this Indenture stated to be exercisable by the Registered Warrantholders by Extraordinary Resolution or otherwise may be exercised from time to time and the exercise of any one or more of such powers or any combination of powers from time to time
shall not be deemed to exhaust the right of the Registered Warrantholders to exercise such power or powers or combination of powers then or thereafter from time to time. 
  

	7.13	Minutes 

 Minutes of all resolutions and proceedings at every meeting of Registered
Warrantholders shall be made and duly entered in books to be provided from time to time for that purpose by the Warrant Agent at the expense of the Corporation, and any such minutes as aforesaid, if signed by the chairman or the secretary of the
meeting at which such resolutions were passed or proceedings had shall be prima facie evidence of the matters therein stated and, until the contrary is proved, every such meeting in respect of the proceedings of which minutes shall have been made
shall be deemed to have been duly convened and held, and all resolutions passed thereat or proceedings taken shall be deemed to have been duly passed and taken. 
  

	7.14	Instruments in Writing 

 All actions which may be taken and all powers that may be
exercised by the Registered Warrantholders at a meeting held as provided in this Article 7 may also be taken and exercised by Registered Warrantholders holding not less than 66 2/3% of the aggregate number of all of the then outstanding Warrants by
an instrument in writing signed in one or more counterparts by such Registered Warrantholders in person or by attorney duly appointed in writing, and the expression “Extraordinary Resolution” when used in this Indenture shall
include an instrument so signed. 

  
 - 38 - 

	7.15	Binding Effect of Resolutions 

 Every resolution and every Extraordinary Resolution
passed in accordance with the provisions of this Article 7 at a meeting of Registered Warrantholders shall be binding upon all the Warrantholders, whether present at or absent from such meeting, and every instrument in writing signed by Registered
Warrantholders in accordance with Section 7.14 shall be binding upon all the Warrantholders, whether signatories thereto or not, and each and every Warrantholder and the Warrant Agent (subject to the provisions for indemnity herein contained)
shall be bound to give effect accordingly to every such resolution and instrument in writing. 
  

	7.16	Holdings by Corporation Disregarded 

 In determining whether Registered Warrantholders
holding Warrants evidencing the entitlement to acquire the required number of Common Shares are present at a meeting of Registered Warrantholders for the purpose of determining a quorum or have concurred in any consent, waiver, Extraordinary
Resolution, Warrantholders’ Request or other action under this Indenture, Warrants owned legally or beneficially by the Corporation shall be disregarded in accordance with the provisions of Section 10.7. 

ARTICLE 8 

SUPPLEMENTAL INDENTURES 
  

	8.1	Provision for Supplemental Indentures for Certain Purposes 

 From time to time, the
Corporation (when authorized by action of the directors) and the Warrant Agent may, subject to the provisions hereof and they shall, when so directed in accordance with the provisions hereof, execute and deliver by their proper officers, indentures
or instruments supplemental hereto, which thereafter shall form part hereof, for any one or more or all of the following purposes: 
  

	 	(a)	setting forth any adjustments resulting from the application of the provisions of Article 4; 

  

	 	(b)	adding to the provisions hereof such additional covenants and enforcement provisions as, in the opinion of Counsel, are necessary or advisable in the premises, provided that the same are not in the opinion of the
Warrant Agent, relying on the advice of Counsel, prejudicial to the interests of the Registered Warrantholders; 

  

	 	(c)	giving effect to any Extraordinary Resolution passed as provided in Section 7.11; 

  

	 	(d)	making such provisions not inconsistent with this Indenture as may be necessary or desirable with respect to matters or questions arising hereunder or for the purpose of obtaining a listing or quotation of the Warrants
on any stock exchange or quotation system, provided that such provisions are not, in the opinion of the Warrant Agent, relying on the advice of Counsel, prejudicial to the interests of the Registered Warrantholders; 

 

	 	(e)	adding to or altering the provisions hereof in respect of the transfer of Warrants, making provision for the exchange of Warrants, and making any modification in the form of the Warrant Certificates which does not
affect the substance thereof; 

  

	 	(f)	 modifying any of the provisions of this Indenture, including relieving the Corporation from any of the obligations, conditions or restrictions herein
contained, provided that 

  
 - 39 - 

	 	
such modification or relief shall be or become operative or effective only if, in the opinion of the Warrant Agent, relying on the advice of Counsel, such modification or relief in no way
prejudices any of the rights of the Registered Warrantholders or of the Warrant Agent, and provided further that the Warrant Agent may in its sole discretion decline to enter into any such supplemental indenture which in its opinion may not afford
adequate protection to the Warrant Agent when the same shall become operative; 

  

	 	(g)	providing for the issuance of additional Warrants hereunder, including Warrants in excess of the number set out in Section 2.1 and any consequential amendments hereto as may be required by the Warrant Agent relying on
the advice of Counsel. 

  

	 	(h)	for any other purpose not inconsistent with the terms of this Indenture, including the correction or rectification of any ambiguities, defective or inconsistent provisions, errors, mistakes or omissions herein, provided
that in the opinion of the Warrant Agent, relying on the advice of Counsel, the rights of the Warrant Agent and of the Registered Warrantholders are in no way prejudiced thereby. 

 

	8.2	Successor Entities 

 In the case of the consolidation, amalgamation, arrangement, merger
or transfer of the undertaking or assets of the Corporation as an entirety or substantially as an entirety to or with another entity (“successor entity”), the successor entity resulting from such consolidation, amalgamation,
arrangement, merger or transfer (if not the Corporation) shall expressly assume, by supplemental indenture satisfactory in form to the Warrant Agent and executed and delivered to the Warrant Agent, the due and punctual performance and observance of
each and every covenant and condition of this Indenture to be performed and observed by the Corporation. 
 ARTICLE 9 

CONCERNING THE WARRANT AGENT 
  

	9.1	Trust Indenture Legislation 

  

	 	(a)	If and to the extent that any provision of this Indenture limits, qualifies or conflicts with a mandatory requirement of Applicable Legislation, such mandatory requirement shall prevail. 

 

	 	(b)	The Corporation and the Warrant Agent agree that each will, at all times in relation to this Indenture and any action to be taken hereunder, observe and comply with and be entitled to the benefits of Applicable
Legislation. 

  

	9.2	Rights and Duties of Warrant Agent 

  

	 	(a)	In the exercise of the rights and duties prescribed or conferred by the terms of this Indenture, the Warrant Agent shall exercise that degree of care, diligence and skill that a reasonably prudent warrant agent would
exercise in comparable circumstances. No provision of this Indenture shall be construed to relieve the Warrant Agent from liability for its own negligent action, wilful misconduct, bad faith or fraud under this Indenture. 

 

	 	(b)	 The obligation of the Warrant Agent to commence or continue any act, action or proceeding for the purpose of enforcing any rights of the Warrant Agent
or the Registered Warrantholders hereunder shall be conditional upon the Registered Warrantholders 

  
 - 40 - 

	 	
furnishing, when required by notice by the Warrant Agent, sufficient funds to commence or to continue such act, action or proceeding and an indemnity reasonably satisfactory to the Warrant Agent
to protect and to hold harmless the Warrant Agent and its officers, directors, employees and agents, against the costs, charges and expenses and liabilities to be incurred thereby and any loss and damage it may suffer by reason thereof. None of the
provisions contained in this Indenture shall require the Warrant Agent to expend or to risk its own funds or otherwise to incur financial liability in the performance of any of its duties or in the exercise of any of its rights or powers unless
indemnified and funded as aforesaid. 

  

	 	(c)	The Warrant Agent may, before commencing or at any time during the continuance of any such act, action or proceeding, require the Registered Warrantholders, at whose instance it is acting to deposit with the Warrant
Agent the Warrants Certificates held by them, for which Warrants the Warrant Agent shall issue receipts. 

  

	 	(d)	Every provision of this Indenture that by its terms relieves the Warrant Agent of liability or entitles it to rely upon any evidence submitted to it is subject to the provisions of Applicable Legislation.

  

	9.3	Evidence, Experts and Advisers 

  

	 	(a)	In addition to the reports, certificates, opinions and other evidence required by this Indenture, the Corporation shall furnish to the Warrant Agent such additional evidence of compliance with any provision hereof, and
in such form, as may be prescribed by Applicable Legislation or as the Warrant Agent may reasonably require by written notice to the Corporation. 

  

	 	(b)	In the exercise of its rights and duties hereunder, the Warrant Agent may, if it is acting in good faith, act and rely as to the truth of the statements and the accuracy of the opinions expressed in statutory
declarations, opinions, reports, written requests, consents, or orders of the Corporation, certificates of the Corporation or other evidence furnished to the Warrant Agent pursuant to a request of the Warrant Agent, provided that such evidence
complies with Applicable Legislation and that the Warrant Agent complies with Applicable Legislation and that the Warrant Agent examines the same and determines that such evidence complies with the applicable requirements of this Indenture.

  

	 	(c)	The Warrant Agent may employ or retain such Counsel, accountants, appraisers or other experts or advisers as it may reasonably require for the purpose of determining and discharging its duties hereunder and may pay
reasonable remuneration for all services so performed by any of them, without taxation of costs of any Counsel, and shall not be responsible for any misconduct or negligence on the part of any such experts or advisers who have been appointed with
due care by the Warrant Agent. 

  

	 	(d)	The Warrant Agent may act and rely and shall be protected in acting and relying in good faith on the opinion or advice of or information obtained from any Counsel, accountant, appraiser, engineer or other expert or
adviser, whether retained or employed by the Corporation or by the Warrant Agent, in relation to any matter arising in the administration of the agency hereof. 

  

	 	(e)	The Warrant Agent may act and rely and shall be protected in acting and relying upon any resolution, certificate, statement, instrument, opinion, report, notice, request, consent, order, letter, telegram, cablegram or
other paper document believed by it to be genuine and to have been signed, sent or presented by or on behalf of the proper party or parties. 

  
 - 41 - 

	 	(f)	Whenever Applicable Legislation requires that evidence referred to in subsection (i) be in the form of a statutory declaration, the Warrant Agent may accept such statutory declaration in lieu of a certificate of
the Corporation required by any provision hereof. Any such statutory declaration may be made by any one or more of the Chairman or Chief Financial Officer of the Corporation or by any other officer(s) or director(s) of the Corporation to whom such
authority is delegated by the directors from time to time. 

  

	 	(g)	Proof of execution of any document or instrument in writing; including a Registered Warrantholders’ Request, by a holder may be made by the certificate of a notary public, or other officer with similar powers, that
the person signing such instrument acknowledged to him the execution thereof, or by an affidavit of a witness to such execution, or in any other manner the Warrant Agent considers adequate. 

 

	9.4	Documents, Monies, etc. Held by Warrant Agent 

  

	 	(a)	Any monies, securities, documents of title or other instruments that may at any time be held by the Warrant Agent shall be placed in the deposit vaults of the Warrant Agent or of any Canadian chartered bank listed in
Schedule I of the Bank Act (Canada), or deposited for safekeeping with any such bank. Any monies held pending the application or withdrawal thereof under any provisions of this Indenture, shall be held, invested and reinvested in
“Permitted Investments” as directed in writing by the Corporation. “Permitted Investments” shall be treasury bills guaranteed by the Government of Canada having a term to maturity not to exceed 90 days, or term deposits or
bankers’ acceptances of a Canadian chartered bank having a term to maturity not to exceed 90 days, or such other investments that is in accordance with the Warrant Agent’s standard type of investments. Unless otherwise specifically
provided herein, all interest or other income received by the Warrant Agent in respect of such deposits and investments shall belong to the Corporation. 

  

	 	(b)	Any written direction for the investment or release of funds received shall be received by the Warrant Agent by 9:00a.m. (Vancouver time) on the Business Day on which such investment or release is to be made, failing
which such direction will be handled on a commercially reasonable efforts basis and may result in funds being invested or released on the next Business Day. 

  

	 	(c)	The Warrant Agent shall have no responsibility or liability for any diminution of any funds resulting from any investment made in accordance with this Indenture, including any losses on any investment liquidated prior
to maturity in order to make a payment required hereunder. 

  

	 	(d)	In the event that the Warrant Agent does not receive a direction or only a partial direction, the Warrant Agent may hold cash balances constituting part or all of such monies and may, but need not, invest same in its
deposit department, the deposit department of one of its affiliates, or the deposit department of a Canadian chartered bank; but the Warrant Agent, its affiliates or a Canadian chartered bank shall not be liable to account for any profit to any
parties to this Indenture or to any other person or entity. 

  
 - 42 - 

	9.5	Actions by Warrant Agent to Protect Interest 

 The Warrant Agent shall have power to
institute and to maintain such actions and proceedings as it may consider necessary or expedient to preserve, protect or enforce its interests and the interests of the Registered Warrantholders. 

 

	9.6	Warrant Agent Not Required to Give Security 

 The Warrant Agent shall not be required to
give any bond or security in respect of the execution of the agency and powers of this Indenture or otherwise in respect of the premises. 
  

	9.7	Protection of Warrant Agent 

 By way of supplement to the provisions of any law for the
time being relating to the Warrant Agent it is expressly declared and agreed as follows: 
  

	 	(a)	the Warrant Agent shall not be liable for or by reason of any statements of fact or recitals in this Indenture or in the Warrant Certificates (except the representation contained in Section 9.9 or in the
authentication of the Warrant Agent on the Warrant Certificates) or be required to verify the same, but all such statements or recitals are and shall be deemed to be made by the Corporation; 

 

	 	(b)	nothing herein contained shall impose any obligation on the Warrant Agent to see to or to require evidence of the registration or filing (or renewal thereof) of this Indenture or any instrument ancillary or supplemental
hereto; 

  

	 	(c)	the Warrant Agent shall not be bound to give notice to any person or persons of the execution hereof; 

  

	 	(d)	the Warrant Agent shall not incur any liability or responsibility whatever or be in any way responsible for the consequence of any breach on the part of the Corporation of any of its covenants herein contained or of any
acts of any directors, officers, employees, agents or servants of the Corporation; 

  

	 	(e)	the Corporation will fully indemnify and hold the Warrant Agent and its officers, directors, employees and agents harmless from and against any and all actions and suits whether groundless or otherwise and from and
against any and all losses, damages, costs, charges, counsel fees, payments, expenses and liabilities arising directly or indirectly out the performance of its duties and obligations under this indenture, except for any liability arising out of the
Warrant Agent’s gross negligence or intentional misconduct; 

  

	 	(f)	this indemnification shall survive the resignation or removal of the Warrant Agent or the termination or discharge of this Indenture; and 

 

	 	(g)	notwithstanding any other provision of this Indenture, and whether such losses or damages are foreseeable or unforeseeable, the Warrant Agent shall not be liable under any circumstances whatsoever for any
(a) breach by any other party of securities law or other rule of any securities regulatory authority, (b) lost profits (c) any action taken, suffered, or omitted by it or for any error of judgement made by the Warrant Agent in the
performance of its duties under this Agreement except for gross negligence on the part of the Warrant Agent or (d) special, indirect, incidental, consequential, exemplary, aggravated or punitive losses or damages. 

  
 - 43 - 

	9.8	Replacement of Warrant Agent; Successor by Merger 

  

	 	(a)	The Warrant Agent may resign its agency and be discharged from all further duties and liabilities hereunder, subject to this Section 9.8, by giving to the Corporation not less than 60 days’ prior notice in
writing or such shorter prior notice as the Corporation may accept as sufficient. The Registered Warrantholders by Extraordinary Resolution shall have power at any time to remove the existing Warrant Agent and to appoint a new warrant agent. In the
event of the Warrant Agent resigning or being removed as aforesaid or being dissolved, becoming bankrupt, going into liquidation or otherwise becoming incapable of acting hereunder, the Corporation shall forthwith appoint a new warrant agent unless
a new warrant agent has already been appointed by the Registered Warrantholders; failing such appointment by the Corporation, the retiring Warrant Agent or any Registered Warrantholder may apply to a judge of a court of the Province of British
Columbia on such notice as such judge may direct, for the appointment of a new warrant agent; but any new warrant agent so appointed by the Corporation or by the Court shall be subject to removal as aforesaid by the Registered Warrantholders. Any
new warrant agent appointed under any provision of this Section 9.8 shall be an entity authorized to carry on the business of a trust company in each of the provinces of Canada. On any such appointment the new warrant agent shall be vested with
the same powers, rights, duties and responsibilities as if it had been originally named herein as Warrant Agent hereunder. 

  

	 	(b)	Upon the appointment of a successor warrant agent, the Corporation shall promptly notify the Registered Warrantholders thereof in the manner provided for in Section 10.2. 

 

	 	(c)	Any Warrant Certificates Authenticated but not delivered by a predecessor Warrant Agent may be Authenticated by the successor Warrant Agent in the name of the predecessor or successor Warrant Agent. 

 

	 	(d)	Any corporation into which the Warrant Agent may be merged or consolidated or amalgamated, or any corporation resulting therefrom to which the Warrant Agent shall be a party, or any corporation succeeding to
substantially the corporate trust business of the Warrant Agent shall be the successor to the Warrant Agent hereunder without any further act on its part or any of the parties hereto, provided that such corporation would be eligible for
appointment as successor Warrant Agent under Section 9.8(1). 

  

	9.9	Conflict of Interest 

  

	 	(a)	The Warrant Agent represents to the Corporation that at the time of execution and delivery hereof no material conflict of interest exists between its role as a Warrant Agent hereunder and its role in any other
capacity and agrees that in the event of a material conflict of interest arising hereafter it will, within 90 days after ascertaining that it has such material conflict of interest, either eliminate the same or assign its agency hereunder to a
successor Warrant Agent approved by the Corporation and meeting the requirements set forth in Section 9.8(1). Notwithstanding the foregoing provisions of this Section 9.9(1), if any such material conflict of interest exists or hereafter
shall exist, the validity and enforceability of this Indenture and the Warrant Certificate shall not be affected in any manner whatsoever by reason thereof. 

  
 - 44 - 

	 	(b)	Subject to Section 9.9(1), the Warrant Agent, in its personal or any other capacity, may buy, lend upon and deal in securities of the Corporation and generally may contract and enter into financial transactions
with the Corporation without being liable to account for any profit made thereby. 

  

	9.10	Acceptance of Agency 

 The Warrant Agent hereby accepts the agency in this Indenture
declared and provided for and agrees to perform the same upon the terms and conditions herein set forth. 
  

	9.11	Warrant Agent Not to be Appointed Receiver 

 The Warrant Agent and any person related to
the Warrant Agent shall not be appointed a receiver, a receiver and manager or liquidator of all or any part of the assets or undertaking of the Corporation. 
  

	9.12	Warrant Agent Not Required to Give Notice of Default 

 The Warrant Agent shall not be
bound to give any notice or do or take any act, action or proceeding by virtue of the powers conferred on it hereby unless and until it shall have been required so to do under the terms hereof; nor shall the Warrant Agent be required to take notice
of any default hereunder, unless and until notified in writing of such default, which notice shall distinctly specify the default desired to be brought to the attention of the Warrant Agent and in the absence of any such notice the Warrant Agent may
for all purposes of this Indenture conclusively assume that no default has been made in the observance or performance of any of the representations, warranties, covenants, agreements or conditions contained herein. Any such notice shall in no way
limit any discretion herein given to the Warrant Agent to determine whether or not the Warrant Agent shall take action with respect to any default. 
  

	9.13	Anti-Money Laundering 

  

	 	(a)	Each party to this Agreement other than the Warrant Agent hereby represents to the Warrant Agent that any account to be opened by, or interest to be held by the Warrant Agent in connection with this Agreement, for or to
the credit of such party, either (i) is not intended to be used by or on behalf of any third party; or (ii) is intended to be used by or on behalf of a third party, in which case such party hereto agrees to complete and execute forthwith a
declaration in the Warrant Agent’s prescribed form as to the particulars of such third party. 

  

	 	(b)	The Warrant Agent shall retain the right not to act and shall not be liable for refusing to act if, due to a lack of information or for any other reason whatsoever, the Warrant Agent, in its sole judgment, determines
that such act might cause it to be in non-compliance with any applicable anti-money laundering, anti-terrorist or economic sanctions legislation, regulation or guideline. Further, should the Warrant Agent, in its sole judgment, determine at any time
that its acting under this Agreement has resulted in its being in non-compliance with any applicable anti-money laundering, anti-terrorist or economic sanctions legislation, regulation or guideline, then it shall have the right to resign on 10 days
written notice to the other parties to this Agreement, provided (i) that the Warrant Agent’s written notice shall describe the circumstances of such non-compliance; and (ii) that if such circumstances are rectified to the Warrant
Agent’s satisfaction within such 10 day period, then such resignation shall not be effective. 

  
 - 45 - 

	9.14	Compliance with Privacy Code 

 The Corporation acknowledges that the Warrant Agent may,
in the course of providing services hereunder, collect or receive financial and other personal information about such parties and/or their representatives, as individuals, or about other individuals related to the subject matter hereof, and use such
information for the following purposes: 
  

	 	(a)	to provide the services required under this Indenture and other services that may be requested from time to time; 

  

	 	(b)	to help the Warrant Agent manage its servicing relationships with such individuals; 

  

	 	(c)	to meet the Warrant Agent’s legal and regulatory requirements; and 

  

	 	(d)	if Social Insurance Numbers are collected by the Warrant Agent, to perform tax reporting and to assist in verification of an individual’s identity for security purposes. 

The Corporation acknowledges and agrees that the Warrant Agent may receive, collect, use and disclose personal information provided to it or
acquired by it in the course of its acting as agent hereunder for the purposes described above and, generally, in the manner and on the terms described in its Privacy Code, which the Warrant Agent shall make available on its website or upon request,
including revisions thereto. Further, the Corporation agrees that it shall not provide or cause to be provided to the Warrant Agent any personal information relating to an individual who is not a party to this Indenture unless the Corporation has
assured itself that such individual understands and has consented to the aforementioned uses and disclosures. 
  

	9.15	Securities Exchange Commission Certification 

  

	 	(a)	Currently reporting: 

 The Corporation confirms that it has either (i) a class of
securities registered pursuant to Section 12 of the US Securities Exchange Act of 1934, as amended (the “Act”); or (ii) a reporting obligation pursuant to Section 15(d) of the Act. The Corporation covenants that in the event
that any such registration or reporting obligation shall be terminated by the Corporation in accordance with the Act, the Corporation shall promptly notify the Warrant Agent of such termination and such other information as the Warrant Agent may
require at the time. The Corporation acknowledges that the Warrant Agent is relying upon the foregoing representation and covenants in order to meet certain United States SEC obligations with respect to those clients who are filing with the SEC.

  
 - 46 - 

 ARTICLE 10 

GENERAL 
  

	10.1	Notice to the Corporation and the Warrant Agent 

  

	 	(a)	Unless herein otherwise expressly provided, any notice to be given hereunder to the Corporation or the Warrant Agent shall be deemed to be validly given if delivered, sent by registered letter, postage prepaid or if
faxed: 

  

	 	(i)	If to the Corporation: 

 Cohbar, Inc. 

PO Box 955 
 Mill Valley, CA
94942 
 Attention: President and Chief Executive Officer 

Facsimile Number: (415) 381-8980 

Email: jon.stern@cohbar.com 

With a copy to: 
 Peter B.
Cancelmo 
 Garvey Schubert Barer 

1191 Second Avenue, 18th Floor 

Seattle, WA 98101 
 Facsimile
Number: 206-464-0125 
 Email: pcancelmo@gsblaw.com 
  

	 	(ii)	If to the Warrant Agent: 

 CST Trust Company 

1600-1066 West Hastings St. 

Vancouver, British Columbia 

V6E-VX1 
 Attention: Director,
Relationship Management 
 Facsimile Number: 604-235-3705 

and any such notice delivered in accordance with the foregoing shall be deemed to have been received and given on the date of delivery or, if
mailed, on the fifth Business Day following the date of mailing such notice or, if faxed or sent by electronic transmission with confirmation of receipt, on the next Business Day following the date of transmission. 

 

	 	(b)	The Corporation or the Warrant Agent, as the case may be, may from time to time notify the other in the manner provided in Section 10.1(1) of a change of address which, from the effective date of such notice and
until changed by like notice, shall be the address of the Corporation or the Warrant Agent, as the case may be, for all purposes of this Indenture. 

  

	 	(c)	If, by reason of a strike, lockout or other work stoppage, actual or threatened, involving postal employees, any notice to be given to the Warrant Agent or to the Corporation hereunder could reasonably be considered
unlikely to reach its destination, such notice shall be valid and effective only if it is delivered to the named officer of the party to which it is addressed, as provided in Section 10.1(1), or given by facsimile or other means of prepaid,
transmitted and recorded communication. 

  

	10.2	Notice to Registered Warrantholders 

  

	 	(a)	 Unless otherwise provided herein, notice to the Registered Warrantholders under the provisions of this Indenture shall be valid and effective if
delivered or sent by ordinary prepaid post addressed to such holders at their post office addresses appearing on the register hereinbefore mentioned and shall be deemed to have been effectively received

  
 - 47 - 

	 	
and given on the date of delivery or, if mailed, on the third Business Day following the date of mailing such notice. In the event that Warrants are held in the name of the Depository, a copy of
such notice shall also be sent by electronic communication to the Depository and shall be deemed received and given on the day it is so sent. 

  

	 	(b)	If, by reason of a strike, lockout or other work stoppage, actual or threatened, involving postal employees, any notice to be given to the Registered Warrantholders hereunder could reasonably be considered unlikely to
reach its destination, such notice shall be valid and effective only if it is delivered to such Registered Warrantholders to the address for such Registered Warrantholders contained in the register maintained by the Warrant Agent or such notice may
be given, at the Corporation’s expense, by means of publication in the Globe and Mail, National Edition, or any other English language daily newspaper or newspapers of general circulation in Canada, in each two successive weeks, the first such
notice to be published within 5 business days of such event, and any so notice published shall be deemed to have been received and given on the latest date the publication takes place. 

 

	10.3	Ownership of Warrants 

 The Corporation and the Warrant Agent may deem and treat the
Registered Warrantholders as the absolute owner thereof for all purposes, and the Corporation and the Warrant Agent shall not be affected by any notice or knowledge to the contrary except where the Corporation or the Warrant Agent is required to
take notice by statute or by order of a court of competent jurisdiction. The receipt of any such Registered Warrantholder of the Common Shares which may be acquired pursuant thereto shall be a good discharge to the Corporation and the Warrant Agent
for the same and neither the Corporation nor the Warrant Agent shall be bound to inquire into the title of any such holder except where the Corporation or the Warrant Agent is required to take notice by statute or by order of a court of competent
jurisdiction. 
  

	10.4	Counterparts 

 This Indenture may be executed in several counterparts, each of which when
so executed shall be deemed to be an original and such counterparts together shall constitute one and the same instrument and notwithstanding their date of execution they shall be deemed to be dated as of the date hereof. 

 

	10.5	Satisfaction and Discharge of Indenture 

 Upon the earlier of: 

 

	 	(a)	the date by which there shall have been delivered to the Warrant Agent for exercise or cancellation all Warrants theretofore Authenticated hereunder, in the case of Certificated Warrants (or such other instructions, in
a form satisfactory to the Warrant Agent), in the case of Uncertificated Warrants, or by way of standard processing through the book entry only system in the case of a CDS Global Warrant; and 

 

	 	(b)	the Expiry Time; 

 and if all certificates or other entry on the register representing Common
Shares required to be issued in compliance with the provisions hereof have been issued and delivered hereunder or to the Warrant Agent in accordance with such provisions, this Indenture shall cease to be of further

  
 - 48 - 

 
effect and the Warrant Agent, on demand of and at the cost and expense of the Corporation and upon delivery to the Warrant Agent of a certificate of the Corporation stating that all conditions
precedent to the satisfaction and discharge of this Indenture have been complied with, shall execute proper instruments acknowledging satisfaction of and discharging this Indenture. Notwithstanding the foregoing, the indemnities provided to the
Warrant Agent by the Corporation hereunder shall remain in full force and effect and survive the termination of this Indenture. 
  

	10.6	Provisions of Indenture and Warrants for the Sole Benefit of Parties and Registered Warrantholders 

Nothing in this Indenture or in the Warrants, expressed or implied, shall give or be construed to give to any person other than the parties
hereto and the Registered Warrantholders, as the case may be, any legal or equitable right, remedy or claim under this Indenture, or under any covenant or provision herein or therein contained, all such covenants and provisions being for the sole
benefit of the parties hereto and the Registered Warrantholders. 
  

	10.7	Common Shares or Warrants Owned by the Corporation or its Subsidiaries—Certificate to be Provided 

For the purpose of disregarding any Warrants owned legally or beneficially by the Corporation in Section 7.16, the Corporation shall
provide to the Warrant Agent, from time to time, a certificate of the Corporation setting forth as at the date of such certificate: 
  

	 	(a)	the names (other than the name of the Corporation) of the Registered Warrantholders which, to the knowledge of the Corporation, are owned by or held for the account of the Corporation; and 

 

	 	(b)	the number of Warrants owned legally or beneficially by the Corporation; 

 and the Warrant
Agent, in making the computations in Section 7.16, shall be entitled to rely on such certificate without any additional evidence. 
  

	10.8	Severability 

 If, in any jurisdiction, any provision of this Indenture or its
application to any party or circumstance is restricted, prohibited or unenforceable, such provision will, as to such jurisdiction, be ineffective only to the extent of such restriction, prohibition or unenforceability without invalidating the
remaining provisions of this Indenture and without affecting the validity or enforceability of such provision in any other jurisdiction or without affecting its application to other parties or circumstances. 

 

	10.9	Force Majeure 

 No party shall be liable to the other, or held in breach of this
Indenture, if prevented, hindered, or delayed in the performance or observance of any provision contained herein by reason of act of God, riots, terrorism, acts of war, epidemics, governmental action or judicial order, earthquakes, or any other
similar causes (including, but not limited to, mechanical, electronic or communication interruptions, disruptions or failures). Performance times under this Indenture shall be extended for a period of time equivalent to the time lost because of any
delay that is excusable under this Section. 

  
 - 49 - 

	10.10 	Assignment, Successors and Assigns 

 Neither of the parties hereto may assign its rights
or interest under this Indenture, except as provided in Section 9.8 in the case of the Warrant Agent, or as provided in Section 8.2 in the case of the Corporation. Subject thereto, this Indenture shall enure to the benefit of and be
binding upon the parties hereto and their respective successors and permitted assigns. 
  

	10.11 	Rights of Rescission and Withdrawal for Holders 

 Should a holder of Warrants exercise
any legal, statutory, contractual or other right of withdrawal or rescission that may be available to it, and the holder’s funds which were paid on exercise have already been released to the Corporation by the Warrant Agent, the Warrant Agent
shall not be responsible for ensuring the exercise is cancelled and a refund is paid back to the holder. In such cases, the holder shall seek a refund directly from the Corporation and subsequently, the Corporation, upon surrender to the Corporation
or the Warrant Agent of any underlying shares that may have been issued, or such other procedure as agreed to by the parties hereto, shall instruct the Warrant Agent in writing, to cancel the exercise transaction and any such underlying shares on
the register, which may have already been issued upon the Warrant exercise. In the event that any payment is received from the Corporation by virtue of the holder being a shareholder for such Warrants that were subsequently rescinded, such payment
must be returned to the Corporation by such holder. The Warrant Agent shall not be under any duty or obligation to take any steps to ensure or enforce that the funds are returned pursuant to this section, nor shall the Warrant Agent be in any other
way responsible in the event that any payment is not delivered or received pursuant to this section. Notwithstanding the foregoing, in the event that the Corporation provides the refund to the Warrant Agent for distribution to the holder, the
Warrant Agent shall return such funds to the holder as soon as reasonably practicable, and in so doing, the Warrant Agent shall incur no liability with respect to the delivery or non-delivery of any such funds. 

  
 - 50 - 

 IN WITNESS WHEREOF the parties hereto have executed this Indenture under the hands of
their proper officers in that behalf as of the date first written above. 
  

			
	COHBAR, INC.
		
	By:	 	  

		 	  Name:
		 	  Title:
		
	By:	 	  

		 	  Name:
		 	  Title:
	
	CST TRUST COMPANY
		
	By:	 	  

		 	  Name:
		 	  Title:
		
	By:	 	  

		 	  Name:
		 	  Title:

  
 - 51 - 

 SCHEDULE “A” 

FORM OF WARRANT 
 SUBJECT TO THE
COMPANY’S ACCELERATION RIGHT, THE WARRANTS EVIDENCED HEREBY ARE EXERCISABLE AT OR BEFORE 5:00 P.M. (TORONTO TIME) ON [—], 2016 AFTER WHICH TIME THE WARRANTS EVIDENCED
HEREBY SHALL BE DEEMED TO BE VOID AND OF NO FURTHER FORCE OR EFFECT. 
 For all IPO Warrants and Compensation Unit Warrants sold outside the United
States and registered in the name of the Depository, include the following legend: 
 (INSERT IF BEING ISSUED TO CDS) UNLESS THIS CERTIFICATE IS
PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF CDS CLEARING AND DEPOSITORY SERVICES INC. (“CDS”) TO COHBAR, INC. (THE “ISSUER”) OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IN RESPECT
THEREOF IS REGISTERED IN THE NAME OF CDS & CO., OR SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF CDS (AND ANY PAYMENT IS MADE TO CDS & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE
OF CDS), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED HOLDER HEREOF, CDS, HAS A PROPERTY INTEREST IN THE SECURITIES REPRESENTED BY THIS CERTIFICATE HEREIN AND IT IS A VIOLATION
OF ITS RIGHTS FOR ANOTHER PERSON TO HOLD, TRANSFER OR DEAL WITH THIS CERTIFICATE. 
 For all Put Unit Warrants include the following legends: 

(INSERT INTO PUT UNIT WARRANTS) THESE WARRANTS AND THE SECURITIES DELIVERABLE UPON THE EXERCISE THEREOF HAVE NOT BEEN AND WILL NOT BE REGISTERED UNDER
THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED (THE “U.S. SECURITIES ACT”). THESE SECURITIES MAY BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED ONLY (A) TO THE CORPORATION, (B) IF THE SECURITIES HAVE BEEN REGISTERED IN
COMPLIANCE WITH THE REGISTRATION REQUIREMENTS UNDER THE U.S. SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS (C) IN COMPLIANCE WITH THE EXEMPTION FROM THE REGISTRATION REQUIREMENTS UNDER THE U.S. SECURITIES ACT IN
ACCORDANCE WITH RULE 144 THEREUNDER, IF APPLICABLE, AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS, OR (D) 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, AND THE HOLDER HAS, PRIOR TO SUCH SALE, FURNISHED TO THE CORPORATION AN OPINION OF COUNSEL OF RECOGNIZED STANDING, OR OTHER EVIDENCE OF EXEMPTION, REASONABLY SATISFACTORY TO THE CORPORATION. HEDGING
TRANSACTIONS INVOLVING THE SECURITIES REPRESENTED HEREBY MAY NOT BE CONDUCTED UNLESS IN COMPLIANCE WITH U.S. SECURITIES LAWS. 
 THE SECURITIES EVIDENCED
HEREBY AND THE SECURITIES ISSUABLE UPON EXERCISE HEREOF HAVE NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OR U.S. STATE SECURITIES LAWS. THESE WARRANTS MAY NOT BE EXERCISED IN THE UNITED STATES OR BY OR ON BEHALF OF, OR FOR THE ACCOUNT OR
BENEFIT OF, A U.S. PERSON UNLESS THIS SECURITY AND THE COMMON SHARES ISSUABLE UPON EXERCISE OF THIS SECURITY HAVE BEEN REGISTERED UNDER THE U.S. SECURITIES ACT AND THE 

 
APPLICABLE STATE SECURITIES LEGISLATION OR AN EXEMPTION FROM SUCH REGISTRATION REQUIREMENTS IS AVAILABLE. “UNITED STATES” AND “U.S. PERSON” ARE AS DEFINED BY REGULATION S
UNDER THE U.S. SECURITIES ACT. 
 WARRANT 

To acquire Common Shares of 

COHBAR, INC. 

(incorporated pursuant to the laws of the State of Delaware) 
  

			
	 Warrant
 Certificate No.
<@>
	  	 Certificate for <@>
 Warrants,
each entitling the holder to acquire one (1) Common
Share (subject to adjustment as provided for in the Warrant
Indenture (as defined below)
  

CUSIP <@>
  

ISIN CA <@>

 THIS IS TO CERTIFY
THAT, for value received, 
 (the “Warrantholder”) is the registered holder of the number of common share purchase warrants (the
“Warrants”) of Cohbar, Inc. (the “Corporation”) specified above, and is entitled, on exercise of these Warrants upon and subject to the terms and conditions set forth herein and in the Warrant Indenture, to
purchase for each Warrant, at any time before 5:00 p.m. (Toronto time) on [—], 2016 (the “Expiry Time”), subject to the Acceleration Right, one fully paid and
non-assessable share of the Corporation’s common stock, US$0.001 par value per share (a “Common Share”), subject to adjustment in accordance with the terms of the Warrant Indenture. 

For the purpose of this Warrant Certificate and the Warrant Indenture, “Acceleration Right” means the right of the Company to accelerate the
Expiry Time to a date that is not the less than 30 days following delivery of the Acceleration Notice if, at any time after the Common Shares are first traded on the TSXV, the volume weighted average trading price of the Common Shares on the TSXV,
or if the Common Shares are not then listed on the TSXV, on such other stock exchange on which the Common Shares are principally traded, equals or exceeds $3.00 for 20 consecutive Trading Days, provided that the Corporation provides the Acceleration
Notice to each registered holder of Warrants within five (5) Business Days. 
 The right to purchase Common Shares may only be exercised by the
Warrantholder within the time set forth above by: 
  

	 	(a)	duly completing and executing the exercise form (the “Exercise Form”) attached hereto; and 

  

	 	(b)	surrendering this warrant certificate (the “Warrant Certificate”), with the Exercise Form to the Warrant Agent at the principal office of the Warrant Agent, in the city of Vancouver, British Columbia,
together with a certified cheque, bank draft or money order in the lawful money of the United States payable to or to the order of the Corporation in an amount equal to the Exercise Price of the Common Shares so subscribed for. 

  
 A-2 

 Subject to adjustment thereof in the events and in the manner set forth in the Warrant Indenture hereinafter
referred to, the exercise price payable for each Common Share upon the exercise of Warrants shall be $2.00 per Common Share (the “Exercise Price”). 

The surrender of this Warrant Certificate, the duly completed Exercise Form and payment as provided above will be deemed to have been effected only on
personal delivery thereof to, or if sent by mail or other means of transmission on actual receipt thereof by, the Warrant Agent at its principal office as set out above. 

Certificates for the Common Shares subscribed for will be mailed to the persons specified in the Exercise Form at their respective addresses specified therein
or, if so specified in the Exercise Form, delivered to such persons at the office where this Warrant Certificate is surrendered. If fewer Common Shares are purchased than the number that can be purchased pursuant to this Warrant Certificate, the
holder hereof will be entitled to receive without charge a new Warrant Certificate in respect of the balance of the Common Shares not so purchased. No fractional Common Shares will be issued upon exercise of any Warrant. 

This Warrant Certificate evidences Warrants of the Corporation issued or issuable under the provisions of a warrant indenture (which indenture together with
all other instruments supplemental or ancillary thereto is herein referred to as the “Warrant Indenture”) dated as of [—], 2014 between the Corporation and CST
Trust Company, as Warrant Agent, to which Warrant Indenture reference is hereby made for particulars of the rights of the holders of Warrants, the Corporation and the Warrant Agent in respect thereof and the terms and conditions on which the
Warrants are issued and held, all to the same effect as if the provisions of the Warrant Indenture were herein set forth, to all of which the holder, by acceptance hereof, assents. The Corporation will furnish to the holder, on request and without
charge, a copy of the Warrant Indenture. 
 On presentation at the principal office of the Warrant Agent as set out above, subject to the provisions of the
Warrant Indenture and on compliance with the reasonable requirements of the Warrant Agent, one or more Warrant Certificates may be exchanged for one or more Warrant Certificates entitling the holder thereof to purchase in the aggregate an equal
number of Common Shares as are purchasable under the Warrant Certificate(s) so exchanged. 
 If the issuance of Common Shares upon exercise hereof is not
registered under an effective Registration Statement under the United States Securities Act of 1933, as amended (the “U.S. Securities Act”), or U.S. state securities laws, then these Warrants may not be exercised in the United States or by
or on behalf of, or for the account or benefit of, a U.S. Person or a person in the United States absent an exemption from the registration requirements of the U.S. Securities Act and applicable state securities law. 

The Warrant Indenture contains provisions for the adjustment of the Exercise Price payable for each Common Share upon the exercise of Warrants and the number
of Common Shares issuable upon the exercise of Warrants upon the occurrence of the events and in the manner set forth therein. 
 The Warrant Indenture also
contains provisions making binding on all holders of Warrants outstanding thereunder resolutions passed at meetings of holders of Warrants held in accordance with the provisions of the Warrant Indenture and instruments in writing signed by
Warrantholders of Warrants entitled to purchase a specific majority of the Common Shares that can be purchased pursuant to such Warrants. 

  
 A-3 

 Nothing contained in this Warrant Certificate, the Warrant Indenture or elsewhere shall be construed as
conferring upon the holder hereof any right or interest whatsoever as a holder of Common Shares or any other right or interest except as herein and in the Warrant Indenture expressly provided. In the event of any discrepancy between anything
contained in this Warrant Certificate and the terms and conditions of the Warrant Indenture, the terms and conditions of the Warrant Indenture shall govern. 

Warrants may only be transferred in compliance with the conditions of the Warrant Indenture on the register to be kept by the Warrant Agent in Vancouver,
British Columbia, or such other registrar as the Corporation, with the approval of the Warrant Agent, may appoint at such other place or places, if any, as may be designated, upon surrender of this Warrant Certificate to the Warrant Agent or other
registrar accompanied by a written instrument of transfer in form and execution satisfactory to the Warrant Agent or other registrar and upon compliance with the conditions prescribed in the Warrant Indenture and with such reasonable requirements as
the Warrant Agent or other registrar may prescribe and upon the transfer being duly noted thereon by the Warrant Agent or other registrar. Time is of the essence hereof. 

This Warrant Certificate will not be valid for any purpose until it has been countersigned by or on behalf of the Warrant Agent from time to time under the
Warrant Indenture. 
 The parties hereto have declared that they have required that these presents and all other documents related hereto be in the English
language. Les parties aux présentes déclarent qu’elles ont exigé que la présente convention, de même que tous les documents s’y rapportant, soient rédigés en anglais. 

IN WITNESS WHEREOF the Corporation has caused this Warrant Certificate to be duly executed as of
[—], 2014. 
  

											
	 Countersigned and Registered by:
  

CST TRUST COMPANY
	 	COHBAR, INC.	 	 
						
		 		 		 	BY:    	 	 	 	
						
	By:    	 	  	 	  	 	 	 	Jon Stern, Chief Executive Officer	 	 
						
	 	 	Authorized Signatory                            	 	 	 	By:	 	  	 	 
						
	 	 	 	 	 	 	 	 	Jeffrey Biunno, Chief Financial Officer	 	 

  
 A-4 

 SCHEDULE “B” 

FORM OF TRANSFER 
  

	To:	CST Trust Company 

 FOR VALUE RECEIVED the undersigned hereby sells, assigns and transfers to 

(print name and address)                     of the
Warrants represented by this Warrants Certificate and hereby irrevocable constitutes and appoints                     as its attorney with full power
of substitution to transfer the said securities on the appropriate register of the Warrant Agent. 
 In the case of a warrant certificate that contains a
U.S. restrictive legend, the undersigned hereby represents, warrants and certifies that (one (only) of the following must be checked): 
  

					
	 ̈	  	 (A)   
	  	the transfer is being made only to the Corporation;
			
	 ̈	  	 (B)   
	  	the transfer is being made outside the United States in accordance with Regulation S under the U.S. Securities Act, and in compliance with any applicable local securities laws and regulations and the undersigned has furnished to the
Corporation and the Warrant Agent an opinion of counsel of recognized standing in form and substance reasonably satisfactory to the Corporation and the Warrant Agent to such effect, or
			
	 ̈	  	 (C)   
	  	the transfer is being made within the United States or to, or for the account or benefit of, a U.S. Person, in a transaction that does not require registration under the U.S. Securities Act or any applicable state securities laws
and the undersigned has furnished to the Corporation and the Warrant Agent an opinion of counsel of recognized standing in form and substance reasonably satisfactory to the Corporation and the Warrant Agent to such effect.

 In the case of a warrant certificate that does not contain a U.S. restrictive legend, if the proposed transfer is to, or for
the account or benefit of a U.S. Person or to a person in the United States, the undersigned hereby represents, warrants and certifies that the transfer of the Warrants is being completed pursuant to an exemption from the registration requirements
of the U.S. Securities Act and any applicable state securities laws, in which case the undersigned has furnished to the Corporation and the Warrant Agent an opinion of counsel of recognized standing in form and substance reasonably satisfactory to
the Corporation and the Warrant Agent to such effect. 
  

	 	 ̈	If transfer is to a U.S. Person, check this box. 

 DATED this     day
of            , 20        . 
  

							
	 SPACE FOR GUARANTEES OF

SIGNATURES (BELOW)
	  	 )
 )
	  	  
	 	 
	 	  	 )
 )
	  	Signature of Transferor	 	 
	  
	  	)	  	  
	 	
	Guarantor’s Signature/Stamp	  	 )
 )
	  	Name of Transferor	 	

 REASON FOR TRANSFER—For US Residents only (where the individual(s) or corporation receiving the
securities is a US resident). Please select only one (see instructions below). 
  

							
	Gift	  	Estate	 	Private Sale	 	Other (or no change in ownership)
		
	   Date of Event (Date of gift, death or sale):

 
	 	 Value per Warrant on the date of event:

 

	        /        /              
  	  		 	$                    
..        	 	      CAD OR    USD

 CERTAIN REQUIREMENTS RELATING TO TRANSFERS—READ CAREFULLY 

The signature(s) of the transferor(s) must correspond with the name(s) as written upon the face of this certificate(s), in every particular, without alteration
or enlargement, or any change whatsoever. All securityholders or a legally authorized representative must sign this form. The signature(s) on this form must be guaranteed in accordance with the transfer agent’s then current guidelines and
requirements at the time of transfer. Notarized or witnessed signatures are not acceptable as guaranteed signatures. As at the time of closing, you may choose one of the following methods (although subject to change in accordance with industry
practice and standards): 
  

	 	•	 	Canada and the USA: A Medallion Signature Guarantee obtained from a member of an acceptable Medallion Signature Guarantee Program (STAMP, SEMP, NYSE, MSP). Many commercial banks, savings banks, credit unions, and
all broker dealers participate in a Medallion Signature Guarantee Program. The Guarantor must affix a stamp bearing the actual words “Medallion Guaranteed”, with the correct prefix covering the face value of the certificate.

  

	 	•	 	Canada: A Signature Guarantee obtained from an authorized officer of the Royal Bank of Canada, Scotia Bank or TD Canada Trust. The Guarantor must affix a stamp bearing the actual words “Signature
Guaranteed”, sign and print their full name and alpha numeric signing number. Signature Guarantees are not accepted from Treasury Branches, Credit Unions or Caisse Populaires unless they are members of a Medallion Signature Guarantee Program.
For corporate holders, corporate signing resolutions, including certificate of incumbency, are also required to accompany the transfer, unless there is a “Signature & Authority to Sign Guarantee” Stamp affixed to the transfer (as
opposed to a “Signature Guaranteed” Stamp) obtained from an authorized officer of the Royal Bank of Canada, Scotia Bank or TD Canada Trust or a Medallion Signature Guarantee with the correct prefix covering the face value of the
certificate. 

  

	 	•	 	Outside North America: For holders located outside North America, present the certificates(s) and/or document(s) that require a guarantee to a local financial institution that has a corresponding Canadian or
American affiliate which is a member of an acceptable Medallion Signature Guarantee Program. The corresponding affiliate will arrange for the signature to be over-guaranteed. 

OR 
 The signature(s) of the transferor(s)
must correspond with the name(s) as written upon the face of this certificate(s), in every particular, without alteration or enlargement, or any change whatsoever. The signature(s) on this form must be guaranteed by an authorized officer of Royal
Bank of Canada, Scotia Bank or TD Canada Trust whose sample signature(s) are on file with the transfer agent, or by a member of an acceptable Medallion Signature Guarantee Program (STAMP, SEMP, NYSE, MSP). Notarized or witnessed signatures are not
acceptable as guaranteed signatures. The Guarantor must affix a stamp bearing the actual words: “SIGNATURE GUARANTEED”, “MEDALLION GUARANTEED” OR “SIGNATURE & AUTHORITY TO SIGN GUARANTEE”, all in accordance
with the transfer agent’s then current guidelines and requirements at the time of transfer. For corporate holders, corporate signing resolutions, including certificate of incumbency, will also be required to accompany the transfer unless there
is a “SIGNATURE & AUTHORITY TO SIGN GUARANTEE” Stamp affixed to the Form of Transfer obtained from an authorized officer of the Royal Bank of Canada, Scotia Bank or TD Canada Trust or a “MEDALLION GUARANTEED” Stamp
affixed to the Form of Transfer, with the correct prefix covering the face value of the certificate. 
 REASON FOR TRANSFER—FOR US RESIDENTS ONLY

 Consistent with US IRS regulations, CST is required to request cost basis information from US securityholders. Please indicate the reason for
requesting the transfer as well as the date of event relating to the reason. The event date is not the day in which the transfer is finalized, but rather the date of the event which led to the transfer request (i.e. date of gift, date of death of
the securityholder, or the date the private sale took place). 

 SCHEDULE “C” 

EXERCISE FORM 
  

			
	 TO: 
	  	 COHBAR, INC.

		
	 AND TO:
	  	 CST TRUST COMPANY, as Warrant Agent

		  	 1600-1066 West Hastings St.

		  	 Vancouver, British Columbia

		  	 V6E-VX1

 The undersigned holder of the Warrants evidenced by this Warrant Certificate hereby exercises the right to
acquire              (A) Common Shares of Cohbar, Inc. 
  

			
	Aggregate Exercise Price Payable:  	 	 
		 	(# of Common Shares multiplied by USD $2.00, subject to adjustment)

 The undersigned hereby exercises the right of such holder to be issued, and hereby subscribes for, Common
Shares that are issuable pursuant to the exercise of such Warrants on the terms specified in such Warrant Certificate and in the Warrant Indenture. Any capitalized term in this Warrant Certificate that is not otherwise defined herein, shall have the
meaning ascribed thereto in the Warrant Indenture. 
 The undersigned hereby acknowledges that the undersigned is aware that the Common
Shares received on exercise may be subject to restrictions on resale under applicable securities legislation and that unless the Common Shares issued upon exercise of this Warrant are registered under the United States Securities Act of 1933, as
amended (the “U.S. Securities Act”), and any applicable state securities laws, such Common Shares will bear a legend restricting the transfer without registration under the U.S. Securities Act and applicable state securities laws
substantially the form set forth in Section 3.3(c) of the Warrant Indenture. 
 Unless the Warrant Agent has received a written
confirmation from the Corporation to the effect that the issuance of the Common Shares upon exercise hereof is registered under the United States Securities Act of 1933, as amended (the “U.S. Securities Act”), and any applicable state
securities laws, you must complete the appended Warrant Exercise Certification. 
 The undersigned hereby irrevocably directs
that the said Common Shares be issued, registered and delivered as follows: 
  

											
	 	 	 Name(s) in Full and Social

Insurance Number(s)

(if applicable)
	 	 	  	Address(es)	  	 	  	 Number of

Common Shares

		 	 	 		  	 	  		  	 
		 	 	 		  	 	  		  	 

 Please print full name in which certificates representing the Common Shares are to be issued. If any Common
Shares are to be issued to a person or persons other than the registered holder, the registered holder must pay to the Warrant Agent all eligible transfer taxes or other government charges, if any, and the Form of Transfer must be duly executed.

 Once completed and executed, this Exercise Form must be mailed or delivered to CST Trust
Company, c/o General Manager, Corporate Trust. 
 DATED this      day of
            , 20    . 
  

							
	 	 	 
  
  
	)
 )

)
	  
   

  
	  	 
	Witness	 	 
  
	)
 )
	  
   
	  	Signature of Warrantholder (must be the same as appears on the face of the Warrant Certificate)
		 	 
  
	)
 )
	  
   
	  	 
		 	 	)	  	  	Name of Registered Warrantholder

  ̈ Please check if the certificates representing the Common
Shares are to be delivered at the office where this Warrant Certificate is surrendered, failing which such certificates will be mailed to the address set out above. Certificates will be delivered or mailed as soon as practicable after the surrender
of this Warrant Certificate to the Warrant Agent. 

 SCHEDULE “D” 

WARRANT EXERCISE CERTIFICATION 

(TO BE COMPLETED ONLY IF A REGISTRATION STATEMENT IS NOT EFFECTIVE) 

 

					
	 To:
	 		  	COHBAR, INC.
	 And To:
	 		  	CST TRUST COMPANY

 The undersigned holder of the within Warrant Certificate, pursuant to the Warrant Indenture mentioned therein, hereby
exercises certain Warrants (the “Exercised Warrants”) evidenced thereby and hereby subscribes for a number of Common Shares of COHBAR, INC. equal to such number of Common Shares or number or amount of other securities or property, or
combination thereof, to which such exercise entitles the undersigned under the provisions of the Warrant Indenture at an aggregate price equal to the product of the Exercise Price and the number of Exercised Warrants, and on the terms specified in
such Warrant Certificate and the Warrant Indenture, and in payment therefor, delivers herewith a bank draft, certified cheque or money order payable to COHBAR, INC. Capitalized terms not defined herein shall have the definitions set forth in the
Warrant Indenture. 
 The undersigned represents that it (A) has had access to such current public information concerning COHBAR, INC. as it considered
necessary in connection with its investment decision and (B) understands that the securities issuable upon exercise hereof have not been registered under the United States Securities Act of 1933, as amended (the “U.S. Securities
Act”). 
 The undersigned represents and warrants as follows: [one must be checked, check only one] 

 

	 ̈        A.	The undersigned is not a U.S. Purchaser and it (1) is not in the United States; (2) is not a U.S. Person and is not exercising the Warrants for, or on behalf or benefit of, a U.S. Person or person in the
United States; (3) did not execute or deliver the Warrant Exercise Form in the United States; (4) agrees not to engage in hedging transactions with regard to the Securities prior to the expiration of the one-year distribution compliance
period set forth in Rule 903(b)(3) of Regulation S; (5) acknowledges that the Common Shares issuable upon exercise of the Warrants are “restricted securities” as defined in Rule 144 of the U.S. Securities Act and upon the issuance
thereof, and until such time as the same is no longer required under the applicable requirements of the U.S. Securities Act or applicable U.S. state laws and regulations, the certificates representing the Common Shares will bear a restrictive
legend; and (6) acknowledges that the Corporation shall refuse to register any transfer of the Securities not made in accordance with the provisions of Regulation S, pursuant to registration under the U.S. Securities Act, or pursuant to an
available exemption from registration under the U.S. Securities Act; and (B) the holder has not engaged in any “directed selling efforts” (as defined in Regulation S) in the United States. 

 

	 ̈        B.	The undersigned is tendering with this Warrant Exercise Certification a written opinion of counsel (which will not be sufficient unless it is in form and substance reasonably satisfactory to the Corporation) or such
other evidence reasonably satisfactory to the Corporation to the effect that the Common Shares may be issued and delivered upon exercise of the Warrants pursuant to a valid exemption from the registration requirements of the U.S. Securities Act and
applicable U.S. state laws and regulations. 

	 ̈        C.	The Warrants are Put Unit Warrants and the undersigned (a) is the original U.S. purchaser who purchased the Warrants pursuant to the Company’s exercise of its rights pursuant to a certain Put Agreement between
the undersigned and the Company (the “Put Agreement”), (b) is exercising the Warrants for its own account, (c) is an “accredited investor” as defined in Rule 501(a) of Regulation D under the U.S. Securities Act of 1933,
as amended (the “U.S. Securities Act”) at the time of exercise of these Warrants, and (d) the representations and warranties of the holder made in the original Put Agreement remain true and correct as of the date of exercise of
these Warrants. 

 The undersigned holder understands that the certificate representing the Corporation’s Common Shares issued upon
exercise of this Warrant will bear a legend restricting the transfer without registration under the U.S. Securities Act and applicable state securities laws substantially the form set forth in Section 3.3(c) of the Warrant Indenture.
“United States” and “U.S. Person” are as defined in Rule 902 of Regulation S under the U.S. Securities Act. 
 It is understood that the
Corporation and CST Trust Company may require evidence to verify the foregoing representations. 
  

			
	 Name:
	 	
	 Nome:            
	 	 
		 	Please print or type name and address (including postal code)
	 Address:
	 	
	 Adresse:
	 	

  

					
	 Number of Warrants being Exercised:
	 		  	 
		 		  	 

  

			
	 DATED this              day of
        .
	  	
		
	 Signature guaranteed by:
	  	
		
		  	 
		  	Name of registered holder (please print)
		
		  	 
		  	Signature of or on behalf of registered holder
		
		  	 
		  	Office, Title or other Authorization (if holder not an individual)

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