CHK Oil Limited — Proxy Solicitation & Information Statement 2026

Jun 3, 2026

中港石油有限公司

CHK OIL LIMITED

(Incorporated in Bermuda with limited liability)

(Stock Code: 632)

SUPPLEMENTAL FORM OF PROXY FOR ANNUAL GENERAL MEETING

I/We (Note 1)

of

being the registered holder(s) of (Note 2) ____, fully-paid shares ("Shares") in the capital of CHK Oil Limited (the "Company") HEREBY APPOINT (Note 3) the Chairman of the meeting or

of

as my/our proxy: (a) to act for me/us at the annual general meeting of the Company to be held at Units 2617-18, 26/F, Mira Place Tower A, No. 132 Nathan Road, Kowloon, Hong Kong at 11:00 a.m. on Friday, 26 June 2026 (or any adjournment thereof) (the "Meeting") for the purpose of considering and, if thought fit, passing the resolution (the "Resolution") as set out in the supplemental notice convening the Meeting; and (b) at the Meeting to vote for me/us and in my/our name(s) in respect of the Resolution as hereunder indicated or, if no such indication is given, as my/our voting proxy thinks fit.

ORDINARY RESOLUTION		FOR (Note 4)	AGAINST (Note 4)
8.	To consider and approve the appointment of HLB Hodgson Impey Cheng Limited as the auditor of the Company (to replace Forvis Mazars CPA Limited) to hold office until conclusion of the next annual general meeting, and to authorize the board of Directors (the “Board”) to fix its remuneration.

Dated this __ day of __ 2026

Signature(s) (Note 5) ____

Notes:

1. Full name(s) and address(es) to be inserted in BLOCK CAPITALS.
2. Please insert the number of Shares registered in your name(s). If no number is inserted, this supplemental form of proxy will be deemed to relate to all Shares registered in your name(s).
3. A member entitled to attend and vote at the Meeting is entitled to appoint his proxy to attend and vote on his behalf. If any proxy other than the Chairman of the Meeting is preferred, please strike out the words "the Chairman of the meeting or" and insert the name and address of the proxy desired in the space provided.
4. IMPORTANT: IF YOU WISH TO VOTE FOR THE RESOLUTION, TICK IN THE BOX MARKED “FOR”. IF YOU WISH TO VOTE AGAINST THE RESOLUTION, TICK IN THE BOX MARKED “AGAINST”. Failure to complete the boxes will entitle your voting proxy to cast his vote at his discretion. A tick in the relevant box indicates that the votes attached to all the Shares stated above as held by you will be casted accordingly and a number in the relevant box indicates that the votes attached to the number of Shares referred to in the box will be casted accordingly.
5. This supplemental form of proxy must be signed by you or your attorney duly authorised in writing or, in the case of a corporation, must be either under seal or under the hand of an officer or attorney duly authorised.

6. In order to be valid, this supplemental form of proxy, together with the power of attorney or other authority (if any) under which it is signed (or a notarially certified copy of that power of authority), must be deposited at the Company's branch share registrar, Tricor Investor Services Limited, at 17/F, Far East Finance Centre, 16 Harcourt Road, Hong Kong not less than 48 hours before the time appointed for holding the Meeting.

7. For identification purposes only

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1. Where there are joint holders of any Share, any one of such persons may vote at the Meeting, either personally or by proxy, in respect of such Share as if he were solely entitled thereto provided that if more than one of such joint holders be present at the Meeting personally or by proxy, then one of the said persons so present whose name stands first on the register of members in respect of such Share will alone be entitled to vote in respect thereof. Several executors or administrators of a deceased member in whose name any Share stands first will for this purpose be deemed joint holder thereof.

2. Completion and delivery of this supplemental form of proxy will not preclude you from attending and/or voting at the Meeting if you so wish.

3. This supplemental proxy form is intended to be used for the supplemental resolution set out in the supplemental notice and will not affect the validity of duly completed form of proxy in respect of the resolutions set out in original notice for the AGM. If you have properly completed and submitted only the proxy form sent by the Company on 23 April 2026 for the resolutions set out in the original notice of the Meeting (the "First Proxy Form") in accordance with the instructions set out therein, the appointed proxy will vote on the resolutions set out in the First Proxy Form per your direction and he is entitled to vote or abstain at his discretion on the resolution set out in this supplemental proxy form. Similarly, if you have properly completed and submitted only this supplemental proxy form in accordance with the instructions set out herein, the appointed proxy will vote on the resolution set out in this supplemental proxy form per the your direction and he is entitled to vote or abstain at his discretion on the resolutions set out in the First Proxy Form. If your wish to provide specific direction to your proxy regarding the voting of all resolutions set out in the First Proxy Form and this supplemental proxy form, you should duly complete and submit both proxy forms in accordance with the instructions set out therein.

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PERSONAL INFORMATION COLLECTION STATEMENT

Your supply of your and your proxy's (or proxies') name(s) and address(es) is on a voluntary basis for the purpose of processing your request for the appointment of a proxy (or proxies) and your voting instructions for the Meeting of the Company (the "Purposes"). We may transfer your and your proxy's (or proxies') name(s) and address(es) to our agent, contractor, or third party service provider who provides administrative, computer and other services to us for use in connection with the Purposes and to such parties who are authorized by law to request the information or are otherwise relevant for the Purposes and need to receive the information. Your and your proxy's (or proxies') name(s) and address(es) will be retained for such period as may be necessary to fulfil the Purposes. Request for access to and/or correction of the relevant personal data can be made in accordance with the provisions of the Personal Data (Privacy) Ordinance and any such request should be in writing by mail to the Company/Tricor Investor Services Limited at the above address.