Pure Extracts Technologies Corp. — AGM Information 2020

Jul 15, 2020

FOR AGAINST WITHHOLD

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BIG SKY PETROLEUM CORPORATION

(the “Company”)

3. Appointment of Auditors Appointment of Smythe LLP as Auditors 4. Continuation of Share Option Plan Approve and ratify the Company's Share Option Plan for continuation

ANNUAL GENERAL MEETING

Appointment of Proxyholder

I/We, being holder(s) of Common Shares of Company, hereby appoint: Yana Popova, Chief Financial Officer and Corporate Secretary of the Company, or, failing her, Sean Bromley, Chief Executive Officer of the Company, OR

______________________________________________________________ Print the name of the person you are appointing if this person is someone other than the individuals listed above

as proxy of the undersigned, to attend, act and vote on behalf of the undersigned in accordance with the direction below (or if no directions have been given, as the proxy sees fit) on all the following matters and any other matter that may properly come before the Annual and Special Meeting of Shareholders of the Company to be held at 10:00 a.m. (Vancouver Time) on August 5, 2020, at 1055 West Georgia Street, Suite 1500, Vancouver, B.C., Canada (the “Meeting”), and at any and all adjournments or postponements thereof in the same manner, to the same extent and with the same powers as if the undersigned were personally present, with full power of substitution.

I/We authorize you to act in accordance with my/our instructions set out above. I/We hereby revoke any proxy previously given with respect to the Meeting. If no voting instructions are indicated above, this Proxy will be voted FOR a matter by Management’s appointees or, if you appoint another proxyholder, as that other proxyholder sees fit. On any amendments or variations proposed or any new business properly submitted before the Meeting, I/We authorize you to vote as you see fit.

_________________________________________________________ __________________ Signature(s) Date

Please sign exactly as your name(s) appear on this proxy. Please see reverse for instructions. All proxies must be received by Proxy cutoff at 10:00 a.m. (Vancouver Time) on July 31, 2020 .

Management recommends voting FOR Resolutions 1, 2, 3 and 4. Please use a dark black pencil or pen.

1. Number of Directors FOR AGAINST

To fix the number of directors at three and to increase the number to five upon the completion of the proposed transaction with Pure Extract Technologies Inc.

2. Election of Directors FOR WITHHOLD 1. Sean Bromley 2. Yana Popova 3. Desmond Balakrishnan

LEGAL_33948724.1

Proxy Form – Annual General Meeting of Big Sky Petroleum Corporation to be held on August 5, 2020 (the “ Meeting ”)

How to Vote

Notes to Proxy

1. This proxy must be signed by a holder or his or her attorney duly authorized in writing. If you are an individual, please sign exactly as your name appears on this proxy. If the holder is a corporation, a duly authorized officer or attorney of the corporation must sign this proxy, and if the corporation has a corporate seal, its corporate seal should be affixed.

2. If the securities are registered in the name of an executor, administrator or trustee, please sign exactly as your name appears on this proxy. If the securities are registered in the name of a deceased or other holder, the proxy must be signed by the legal representative with his or her name printed below his or her signature, and evidence of authority to sign on behalf of the deceased or other holder must be attached to this proxy.

3. Some holders may own securities as both a registered and a beneficial holder; in which case you may receive more than one Circular and will need to vote separately as a registered and beneficial holder. Beneficial holders may receive either a form of proxy already signed by the intermediary or a voting instruction form to allow them to direct the voting of securities they beneficially own. Beneficial holders should follow instructions for voting conveyed to them by their intermediary.

MAIL, FAX or EMAIL

• Complete and return your signed proxy in the envelope provided or send to:

AST Trust Company (Canada) P.O. Box 721 Agincourt, ON M1S 0A1

• You may alternatively fax your proxy to 416-368-2502 or toll free in Canada and the United States of America to 1-866-781-3111; or scan your completed Proxy and email it to proxyvote@astfinancial.com.

An undated proxy is deemed to be dated on the day it was received by AST Trust Company (Canada).

All proxies must be received by the Proxy cutoff at 10:00 a.m. (Vancouver Time) on July 31, 2020.

1. If a security is held by two or more individuals, any one of them present or represented by proxy at the Meeting may, in the absence of the other or others, vote at the Meeting. However, if one or more of them are present or represented by proxy, they must vote together the number of securities indicated on the proxy.

All holders should refer to the Proxy Circular for further information regarding completion and use of this proxy and other information pertaining to the Meeting.

This proxy is solicited by and on behalf of Management of the Company.

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LEGAL_33948724.1