Sinopec Oilfield Service Corporation (SINOPEC SSC) filed its Monthly Return for Equity Issuer for the period ended 30 September 2026, confirming a stable capital structure and continued compliance with Hong Kong’s minimum public-float rules.

Total authorised share capital remained unchanged at RMB 18.96 billion, comprising: • A-shares: 13.55 billion shares with a par value of RMB 1.00, listed on the Shanghai Stock Exchange. • H-shares: 5.41 billion shares with a par value of RMB 1.00, listed on the Hong Kong Stock Exchange.

Issued share figures were also unchanged during the month: • A-shares in issue (excluding treasury stock): 13.55 billion. • H-shares in issue (excluding treasury stock): 5.41 billion. • No treasury shares were held for either class.

The company reported no share repurchases, cancellations, allotments, options, warrants, convertibles, or other equity-related arrangements during the month.

As of 30 September 2026, H-shares held by public investors accounted for 14.85% of the total issued H-share class—well above the Hong Kong Stock Exchange’s 5% minimum threshold for PRC issuers—confirming public-float sufficiency.

The filing was signed by Company Secretary Shen Zehong on 6 October 2026.