CStone Pharmaceuticals — Capital/Financing Update 2012

May 16, 2012

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.

This announcement is for information purposes only and does not constitute an invitation or offer to acquire, purchase or subscribe for securities.

These materials contained in this announcement are not for distribution, publication or circulation, directly or indirectly, in or into the United States.

This announcement is solely for the purpose of reference and does not constitute an offer of securities for sale or an invitation to purchase securities in the United States or any other jurisdiction. Any securities described herein have not been and will not be registered under the U.S. Securities Act of 1933 (the “U.S. Securities Act”) or under any securities laws of any state or other jurisdiction of the United States. Unless exempt from registration and in compliance with the securities laws of any state or other jurisdiction of the United States, any securities described herein may not be sold, offered for sale, resold, transferred or delivered, directly or indirectly, within the United States or to, or for the account or benefit of, U.S. persons (as such term is defined in Regulation S under the U.S. Securities Act). There will be no public offer or sale of the securities described herein in the United States.

NOTICE OF LISTING ON THE STOCK EXCHANGE OF HONG KONG LIMITED

YANCOAL INTERNATIONAL RESOURCES DEVELOPMENT CO.,

LIMITED

(Incorporated with limited liability in Hong Kong under the Companies Ordinance)

as Issuer

US$450,000,000 4.461% Guaranteed Notes due 2017

(Stock Code: 4551)

US$550,000,000 5.730% Guaranteed Notes due 2022 (Stock Code: 4552)

unconditionally and irrevocably guaranteed by

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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)

Joint Lead Managers and Joint Bookrunners

(in alphabetical order)

Deutsche Bank UBS

Application has been made to The Stock Exchange of Hong Kong Limited for listing of and permission to deal in US$450,000,000 4.461% Guaranteed Notes due 2017 and US$550,000,000 5.730% Guaranteed Notes due 2022 of Yancoal International Resources Development Co., Limited (guaranteed by Yanzhou Coal Mining Company Limited) (the “ Notes ”), by way of debt issue to professional investors only, as described in the Offering Memorandum dated 9 May 2012 in respect of such Notes and such permission to deal in the Notes is expected to become effective on 17 May 2012.

Hong Kong, 16 May 2012

As at the date of this announcement, the directors of Yancoal International Resources Development Co., Limited are Mr. Li Weimin, Mr. Zhang Yingmin, Mr. Lai Cunliang, Mr. Wu Yuxiang and Mr. Zhang Baocai.

As at the date of this announcement, the directors of Yanzhou Coal Mining Company Limited are Mr. Li Weimin, Mr.Wang Xin, Mr. Zhang Yingmin, Mr. Shi Xuerang, Mr. Wu Yuxiang, Mr. Zhang Baocai and Mr. Dong Yunqing, and the independent non-executive directors of Yanzhou Coal Mining Company Limited are Mr. Wang Xianzheng, Mr. Cheng Faguang, Mr.Wang Xiaojun and Mr. Xue Youzhi.