China Petroleum & Chemical Corporation (SINOPEC CORP) submitted a Next Day Disclosure Return to the Hong Kong Stock Exchange on 11 August 2026, detailing continued progress under its ongoing share buyback mandate. The company’s total issued share capital remains unchanged at 23.78 billion H-shares and 97.14 billion A-shares; however, 176.84 million shares (H- and A-class combined) have been repurchased for cancellation and were still outstanding as at the same date.

H-SHARE REPURCHASES • Period: 18 June–21 July 2026 • Volume: 80.09 million shares, representing 0.34 % of the 23.78 billion H-shares in issue before the programme. • Consideration: Approximately HKD 329.18 million, implying a volume-weighted average repurchase price of HKD 4.11 per share. • Price range: HKD 4.01–4.29 per share.

A-SHARE REPURCHASES • Period: 18 June–11 August 2026 • Volume: 96.75 million shares, equivalent to 0.10 % of the 97.14 billion A-shares in issue before the programme. • Consideration: About RMB 462.18 million, for a volume-weighted average repurchase price of RMB 4.78 per share. • Price range: RMB 4.46–RMB 5.28 per share.

LATEST TRANSACTION (11 AUG 2026) On 11 August 2026 the company bought back 0.90 million A-shares on the Shanghai Stock Exchange at prices between RMB 5.10 and RMB 5.20, spending RMB 4.62 million.

CAPITAL STRUCTURE POST-TRANSACTION • Issued H-shares (unchanged): 23.78 billion • Issued A-shares (unchanged): 97.14 billion • Total issued shares: 120.93 billion • Repurchased shares pending cancellation: 176.84 million, equal to approximately 0.15 % of total issued shares.

REGULATORY CONTEXT All repurchases were executed under the mandate granted on 13 May 2026, which authorises SINOPEC CORP to buy back up to 10 % of its issued share capital. The company confirmed that transactions on the Hong Kong and Shanghai exchanges complied with the respective listing rules and domestic regulations.