CStone Pharmaceuticals — Proxy Solicitation & Information Statement 2023

May 31, 2023

兗礦能源集團股份有限公司 YANKUANG ENERGY GROUP COMPANY LIMITED*

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(A joint stock limited company incorporated in the People’s Republic of China with limited liability)

(Stock Code: 01171)

Form of Proxy for Use at the 2023 First Class Meeting of the Holders of H Shares to be Held on Friday, 30 June 2023

I/We [(note][2)] ,

The Number of Shares Represented by the Proxy Form [(note][1)]

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Address [(note][2)]

being the registered holder(s)

of (note 1) H shares of RMB 1.00 each in the capital of Yankuang Energy Group Company Limited (the “ Company ”), HEREBY APPOINT [(note][3)] the Chairman of the 2023 first class meeting of the holders of H Shares of the Company (the “ H Shareholders’ Class Meeting* ”) or of as my/our proxy/proxies to attend on my/our behalf at the H Shareholders’ Class Meeting (and/or at any adjournment thereof) to be held at the headquarters of the Company at 949 South Fushan Road, Zoucheng, Shandong Province 273500, the People’s Republic of China at 11:00 a.m. on Friday, 30 June 2023. The proxy/proxies will vote on the resolutions listed in the Notice of H Shareholders’ Class Meeting as hereunder indicated or, unless otherwise indicated or if no such indication is given, as my proxy/proxies think(s) fit:

					RESOLUTIONS		FOR(note 4)	AGAINST(note 4) ABSTAIN(note 4)	AGAINST(note 4) ABSTAIN(note 4)	AGAINST(note 4) ABSTAIN(note 4)	AGAINST(note 4) ABSTAIN(note 4)	AGAINST(note 4) ABSTAIN(note 4)
		1.	Special Resolution: “THAT, to consider and approve the			proposed profit
			distribution plan of the Company for the year ended 31 December 2022 and to
			authorize the Board to distribute: (i) a final cash dividend of RMB3.07 (tax
			inclusive) per share for the year 2022; (ii) a special cash dividend of RMB1.23
			(tax inclusive)		per share; and (iii) five (5) Bonus Shares for every ten (10)
			Shares to the		Shareholders based on the number of shares	on the dividend
			distribution record date”.
		2.	Special Resolution: “THAT, to consider and approve the amendments to the
			Articles	of Association of Yankuang Energy Group Company Limited and
			Relevant	Rules	of Procedure”.
		3.	Special Resolution: “THAT, to consider and approve the proposal regarding the
			general mandate authorizing the Board to repurchase H shares”.

• For identification purpose only

• ** The details of the above resolutions are included in the announcement dated 24 March 2023 in relation to the resolutions passed at the meeting of the Board and the announcement dated 24 April 2023 in relation to the proposed amendments to the Articles of Association and Relevant Rules of Procedure (the “ Announcements ”). A circular containing details of the above resolutions (the “ Circular ”) will despatch to the shareholders of the Company in due course.

Signature [(note][5)] : Date:

Notes:

• Unless otherwise specified, capitalised terms used for the resolutions have the same meanings as defined in the Announcements and the Circular.

• Please insert the number of shares in the Company to which this form of proxy relates. If no number is inserted, this form of proxy will be deemed to relate to all the shares in the Company registered in your name.

• Full name(s) and address(es) to be inserted in BLOCK LETTERS as shown in the register of members of the Company.

• If the person other than the Chairman of the H Shareholders’ Class Meeting is to be appointed as proxy, please delete “the Chairman of the 2023 first class meeting of the holders of H Shares of the Company or” and insert into the blank space the name and address of the proxy appointed. Each Shareholder is entitled to appoint one or more proxies to attend and vote at the meeting. The proxy needs not be a Shareholder. A proxy of a Shareholder who has appointed more than one proxy may only vote on a poll. Any alteration made to this form of proxy must be initialled by the person(s) who sign(s) it.

• “Important: AGAINST If”. youIf youwishwishto voteto abstainfor anyfromresolution,voting ontickanyin resolution,the box markedtick in“ FOR the box”. Ifmarkedyou wish“ ABSTAIN to vote ”,againstand yourany votingresolution,will tickbe countedin the boxin themarkedtotal number of votes cast in that resolution for the purpose of calculating the result of that resolution. Failure to tick the box will entitle your proxy to cast your vote at his discretion. Your proxy will also be entitled to vote at his discretion on any resolution properly put to the H Shareholders’ Class Meeting other than those referred to in the notice convening the H Shareholders’ Class Meeting.

• This form of proxy must be signed by you (or by your attorney duly authorized in writing). If you are a legal entity such as a company or an organisation, this form of proxy must be under the seal of the legal entity or be signed by its director (or responsible person) or a duly authorized attorney.

• To be valid, this form of proxy, together with the power of attorney or other documents of authorization under which it is signed, must be delivered to Hong Kong Registrars Limited at 17M Floor, Hopewell Centre, 183 Queen’s Road East, Wanchai, Hong Kong not less than 24 hours before the time appointed for the holding of the H Shareholders’ Class Meeting or any adjournment thereof.

• A proxy attending the H Shareholders’ Class Meeting must present his proof of identity.