CStone Pharmaceuticals — Board/Management Information 2022

Mar 30, 2022

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: 1171)

RESIGNATION OF INDEPENDENT NON-EXECUTIVE DIRECTOR

The board of directors (the “ Board ”) of Yankuang Energy Group Company Limited* (the “ Company ”) hereby announces that the Board has received the resignation letter from Mr. Tian Hui (“Mr. Tian”) on 30 March 2022, Mr. Tian resigned as an independent non-executive director of the Company and the member of the Audit Committee, the Nomination Committee, the Sustainable Development Committee of the Board due to personal reason. His resignation will become effective upon the election and appointment of the successor independent non-executive director by the shareholders’ general meeting of the Company. During this period, Mr. Tian continues to perform his duties as an independent non-executive director of the Company and the member of the Audit Committee, the Nomination Committee, the Sustainable Development Committee of the Board.

As at the date of this announcement, Mr. Tian has not held any share of the Company, and there are no commitments that should have been fulfilled. Mr. Tian has confirmed that he has no disagreement with the Board, and there are no matters relating to his resignation that needs to be brought to the attention of the shareholders of the Company or The Stock Exchange of Hong Kong Limited.

Mr. Tian gave full play to his professional advantages and made important contributions to the governance and operation development of the Company during his terms of office, the Company would like to take this opportunity to express its sincere gratitude to Mr. Tian.

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Chairman of the Board

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

Zoucheng, Shandong Province, the PRC 30 March 2022

As at the date of this announcement, the Directors of the Company are Mr. Li Wei, Mr. Liu Jian, Mr. Xiao Yaomeng, Mr. Zhu Qingrui, Mr. Zhao Qingchun, Mr. Wang Ruolin and Mr. Huang Xiaolong, and the independent non-executive Directors of the Company are Mr. Tian Hui, Mr. Zhu Limin, Mr. Cai Chang, and Mr. Poon Chiu Kwok.

• For identification purpose only

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