CStone Pharmaceuticals — AGM Information 2006

May 29, 2006

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

兗州煤業股份有限公司 YANZHOU COAL MINING COMPANY LIMITED

(a joint stock limited company incorporated in the People’s Republic of China with limited liability) (Stock Code: 1171)

SECOND NOTICE OF THE 2005 ANNUAL GENERAL MEETING

The Company publishes the Second Notice in the PRC on 30 May 2006.

Details relating to net voting in the Second Notice are not applicable to holders of H shares of the Company.

This announcement is made pursuant to the disclosure requirement under Rule 13.09(2) of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited.

Yanzhou Coal Mining Company Limited (the “ Company ”) published the notice of the 2005 annual general meeting (“ AGM ”) on 9 May 2006 in Wen Wei Po and South China Morning Post of Hong Kong and the domestic China Securities Journal and Shanghai Securities News. As the AGM will give a platform to vote on the net to the holders of social public shares in the People’s Republic of China (the “PRC”), in accordance with the requirements of the China Securities Regulatory Commission in “Various Regulations Concerning the Strengthening of the Protection of the Interests of the Holders of Social Public Shares”, the Company publishes the second notice of the AGM (the “ Second Notice ”) in the PRC on 30 May 2006.

Save as the information already disclosed in the notice of AGM, the Second Notice further discloses information such as the matters to be attended to and the operational procedures in respect of the participation of the holders of social public shares in net voting.

Holders of H shares of the Company may refer to the Second Notice in full in the domestic China Securities Journal and Shanghai Securities News or the website of the Shanghai Stock Exchange (http://www.sse.com.cn) on 30 May 2006. Details relating to net voting in the Second Notice is not applicable to holders of H shares of the Company.

This announcement is made pursuant to the disclosure requirement under Rule 13.09(2) of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited.

As at the date of this announcement, the directors of the Company are Mr. Wang Xin, Mr. Geng Jiahuai, Mr. Yang Deyu, Mr. Shi Xuerang, Mr. Chen Changchun, Mr. Wu Yuxiang, Mr. Wang Xinkun, Mr. Chen Guangshui and Mr. Dong Yunqing, and the independent non-executive directors of the Company are Mr. Pu Hongjiu, Mr. Cui Jianmin, Mr. Wang Xiaojun, Mr. Wang Quanxi.

By order of the Board of Directors of Yanzhou Coal Mining Company Limited Wang Xin Chairman of the Board

Zoucheng, Shandong Province, PRC, 30 May 2006

Please also refer to the published version of this announcement in South China Morning Post.

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