CStone Pharmaceuticals — Capital/Financing Update 2023

Oct 3, 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)

COMPLETION OF DISCLOSEABLE AND CONNECTED TRANSACTION IN RELATION TO THE ACQUISITION OF 51% EQUITY INTEREST IN TARGET COMPANIES

Reference is made to the announcements of Yankuang Energy Group Company Limited* (the “ Company ”) dated 28 April 2023, 28 May 2023, 15 June 2023 and 30 June 2023 (the “ Announcements ”), as well as the circular of the Company dated 9 June 2023 (the “ Circular ”) in relation to, among others, the discloseable and connected transaction in respect of the Acquisitions. Unless otherwise stated, capitalised terms used in this announcement shall have the same meanings as those defined in the Announcements and the Circular.

On 30 September 2023, the Company has signed closing confirmations (the “ Closing Confirmations ”) with the First Vendors and the Second Vendors in respect of the First Equity Interests and the Second Equity Interests (collectively the “ Target Equity Interests ”) respectively, confirming in writing that the closing date of the Acquisitions is 30 September 2023. The parties to the Acquisitions will handle subsequent matters in accordance with the First Equity Transfer Agreement, the Second Equity Transfer Agreement and the Closing Confirmations. An auditing institution recognized by the parties will carry out audit and issue audit report(s) for the profit and loss of the Target Equity Interests during the transition period, with 30 September 2023 as the closing audit benchmark date.

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

Zoucheng, Shandong Province, the PRC 3 October 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