CStone Pharmaceuticals — Earnings Release 2021

Oct 21, 2021

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: 01171)

POSITIVE PROFIT ALERT FOR THE FIRST THREE QUARTERS OF 2021

This announcement is made pursuant to Part XIVA of the Securities and Futures Ordinance and Rules 13.09(2)(a) and 13.10B of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited.

I. Estimated results for this period

1. Period of estimated results

1 January 2021 to 30 September 2021.

2. Estimated results

Yanzhou Coal Mining Company Limited (the " Company ") and the board of directors of the Company (the “ Board ”) wish to inform the shareholders and potential investors of the Company that, according to the preliminary calculation by the Company's financial department in accordance with the Chinese Accounting Standards, the Company expects to realize the net profit that attributable to the shareholders of the listed company to about RMB 11,500 million in the first three quarters of 2021, which will increase by RMB 5,810 million compared with the data of the same period of the previous year before the retroactive adjustment, with a year-on-year increase of 102.09%; which will increase by RMB 4,521 million compared with the data of the same period of the previous year after the retroactive adjustment, with a year-on-year increase of 64.78%.

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In addition, the Company expects that the net profit attributable to the shareholders of the listed company after deducting non-recurring gains and losses is about RMB 11,769 million in the first three quarters of 2021, which will increase by RMB 8,154 million compared with the data of the same period of the previous year before the retrospective adjustment, with a year-on-year increase of 225.50%; which will increase by RMB 6,864 million compared with the data of the same period of the previous year after the retroactive adjustment, with a year-on-year increase of 139.91%.

1. The estimated results for this period have not been audited by certified public accountants.

II. Results for the same period of previous year (calculated in accordance with the Chinese

Accounting Standards)

1. Net profit attributable to shareholders of the listed company (Before the retroactive adjustment): RMB 5,690 million;

• Net profit attributable to shareholders of the listed company (After the retroactive adjustment): RMB 6,979 million.

1. Net profit attributable to the shareholders of the listed company after deducting nonrecurring gains and losses (Before the retroactive adjustment): RMB 3,616 million; Net profit attributable to the shareholders of the listed company after deducting nonrecurring gains and losses (After the retroactive adjustment): RMB 4,906 million.

2. Earnings per share (Before the retroactive adjustment): RMB 1.1640 per share; Earnings per share (After the retroactive adjustment): RMB 1.4275 per share.

III. Main reasons for the estimated profit growth for this period

The significant growth of the Company’s profit for the first three quarters of 2021 as compared to the same period of previous year is mainly due to the following reasons:

1. Since the beginning of 2021, China's economy has been stable and improving, and the market prices of coal, acetic acid and other chemical products have been running at a high level. The prices of the Company's main products have increased significantly in the first three quarters of 2021.

2. The Company completed the acquisition of relevant assets of its controlling shareholder in December 2020. The financial performance of new assets in the first three quarters of

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2021 was excellent, which promoted the year-on-year improvement of the company's financial performance in the first three quarters of 2021 compared with the same period of the previous year before the retroactive adjustment.

IV. RISK WARNINGS

There are no material uncertain factors in the Company, which will affect the accuracy of the contents of this estimated results.

V. OTHER EXPLANATORY MATTER

The estimated results are only preliminary accounting data. Detailed and accurate financial information will be set out in the formally disclosed 2021 third quarter report of the Company. Investors are advised to be aware of investment risks.

By order of the Board Yanzhou Coal Mining Company Limited Chairman of the Board Li Wei

Zoucheng City, Shandong Province, the PRC

21 October 2021

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.

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