CStone Pharmaceuticals — Capital/Financing Update 2023

Jul 14, 2023

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.

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兗礦能源集團股份有限公司

YANKUANG ENERGY GROUP COMPANY LIMITED *

(A joint stock limited company incorporated in the People’s Republic of China with limited liability) (Stock Code: 01171)

OVERSEAS REGULATORYANNOUNCEMENT

SECOND ANNOUNCEMENT TO CREDITORS OF THE COMPANY IN RELATION TO GENERAL MANDATE GRANTED TO THE BOARD TO REPURCHASE H SHARES OF THE COMPANY

This announcement is made pursuant to the disclosure requirements under Rule 13.10B of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited.

The 2022 annual general meeting, the 2023 first class meeting of the holders of H shares and the 2023 first class meeting of the holders of A shares were convened by Yankuang Energy Group Company Limited* (the “ Company ”) on 30 June 2023, pursuant to which a general mandate was granted to the board of directors of the Company (the “ Board ”) to repurchase H shares of the Company not exceeding 10% of the aggregate share capital of H shares of the Company in issue as at the date of passing the resolution. Under the general mandate, the Board is authorized to repurchase H shares of the Company during the authorized period according to the needs and market conditions upon obtaining approvals from the relevant regulatory authorities and complying with the relevant laws, administrative regulations, departmental rules, normative documents and the articles of association of the Company. Upon exercise of the aforesaid general mandate by the Board, the Company will cancel the repurchased H shares in accordance with the relevant laws and regulations, which will lead to a reduction in the registered capital of the Company. Accordingly, the Company publishes this announcement in compliance with the Company Law of the People’s Republic of China, the articles of association of the Company and other relevant regulations.

All creditors of the Company may submit a claim for creditor’s rights against the Company since the publication of the first announcement to creditors of the Company. Creditors may require the Company to repay the debts or to provide guarantee by producing valid documents of creditor’s rights, evidence and identity documents within thirty (30) days after receiving a written notice from the Company, or, in case of failure of receiving such notice, within forty-five (45) days after the publication of the first announcement to creditors of the Company.

Method of claiming creditor’s rights:

To claim the aforesaid rights against the Company, creditors should produce originals and photocopies of the contracts, agreements and other evidence which stand as the proof of the debtor-creditor relationship with the Company. A creditor who is a legal person shall produce the original and a photocopy of the duplicate corporate business licence, as well as the identity document of its legal representative; in case of claiming through proxy, the original of the power of attorney signed by the legal representative as well as the original and a photocopy of the valid identity document of the proxy shall be further produced. A creditor who is a natural person shall produce the original and a photocopy of his/her valid identity document. In case of claiming through proxy, original of the power of attorney as well as the original and a photocopy of the valid identity document of the proxy shall be further produced.

1. Creditors claiming by mail should deliver their materials of creditor’s rights to the following address (the date of claim will be determined by the date of postal chop):

Postal address: 949 South Fushan Road, Zoucheng, Shandong Province

For the attention of: Mr. Guo Yifei, Finance Management Department, Yankuang Energy Group Company Limited*

Postal code: 273500

Special reminder: Please mark “Claim for Creditor’s Rights” on the cover of the mail.

1. Creditors claiming by fax should fax their materials of creditor’s rights to the following fax number:

Fax number: 0537-5383311

Special reminder: Please mark “Claim for Creditor’s Rights” on the cover of the fax.

Contact telephone number: 0537-5384231

By order of the Board Yankuang Energy Group Company Limited * Li Wei Chairman of the Board

Zoucheng, Shandong Province, the PRC 14 July 2023

As at the date of this announcement, the Directors of the Company are Mr. Li Wei, Mr. Xiao Yaomeng, Mr. Liu Jian, Mr. Liu Qiang, Mr. Zhang Haijun , Mr.Su Li and Mr. Huang Xiaolong, and the independent non-executive Directors of the Company are Mr. Peng Suping, Mr. Zhu Limin, Mr. Woo Kar Tung, Raymond and Ms. Zhu Rui.

* For identification purpose only