China Petroleum & Chemical Corporation (Sinopec Corp.) has filed a Next Day Disclosure Return outlining share capital movements through 31 August 2026. Key takeaways follow.

Stable share base • Ordinary H shares in Hong Kong: Issued share capital remained at 23.78 billion shares as of 31 August 2026. • Ordinary A shares in Shanghai: Issued share capital stood unchanged at 97.14 billion shares.

Continued H-share repurchases • On 31 August 2026, Sinopec repurchased 2.13 million H shares on the Hong Kong Stock Exchange at prices between HKD 4.71 and HKD 4.79, spending HKD 10.12 million. • Cumulative H-share buy-backs since the 13 May 2026 mandate total 88.93 million shares, equivalent to 0.07 % of the company’s 120.93 billion issued shares as of the mandate date. • The mandate authorises repurchases of up to 2.38 billion shares (10 % of issued share capital). Repurchases to date utilise roughly 3.74 % of that limit.

H shares pending cancellation As at 31 August 2026, 88.93 million H shares (acquired between 18 June and 31 August 2026 at volume-weighted average prices ranging from HKD 4.01 to HKD 4.79) await formal cancellation.

A-share repurchase progress • Between 18 June and 21 August 2026 the company bought back 104.26 million A shares on the Shanghai Stock Exchange at prices between RMB 4.46 and RMB 5.28; these shares also remain pending cancellation. • The purchases represent approximately 0.11 % of the 97.14 billion outstanding A shares.

Moratorium on new issues Pursuant to Hong Kong Listing Rule 10.06(3)(a), Sinopec Corp. is restricted from issuing new shares or selling treasury shares until 30 September 2026 following the latest repurchase.

Regulatory compliance The company confirmed all repurchases were executed in accordance with Hong Kong Stock Exchange rules and applicable domestic regulations. The explanatory statement dated 20 April 2026 remains unchanged.