China Oilfield Services Limited (COSL) announced that all resolutions tabled at the 2025 Annual General Meeting (AGM) and the 2026 first H-shareholders’ class meeting on 22 May 2026 were approved.

Key AGM outcomes • Shareholder turnout: 3.36 billion shares voted, representing 70.43 % of COSL’s 4.77 billion issued shares. • Financials adopted: The 2025 audited financial statements and auditor’s report were endorsed. • Profit distribution: A final dividend of RMB0.2825 per share (tax-inclusive) was sanctioned, translating to a payout of roughly RMB1.35 billion. – Record date: 10 June 2026 – Payment date: 30 June 2026 in Hong Kong dollars for overseas holders at HKD0.323492 per H share (based on RMB/HKD 0.873284). • Board matters: Directors’ remuneration system and 2026 remuneration plan approved; external auditors re-appointed. • Financing & risk management: – Extension of US-dollar loans by subsidiary COSL Middle East FZE with a guarantee from COSL ratified. – Blanket guarantees for wholly owned subsidiaries authorised.

Capital mandates 1. Issuance: The Board received a 12-month general mandate to issue, allot or deal up to 20 % of existing H shares (excluding treasury shares). 2. Buy-back: Separate special resolutions empower the Board to repurchase up to 10 % of outstanding A shares and 10 % of outstanding H shares (excluding treasury shares). Both mandates lapse at the earlier of the 2026 AGM, twelve months from approval, or revocation by shareholders.

H-shareholders’ class meeting H-shareholders representing 909.04 million H shares (50.19 % of the class) backed the 10 % A/H share buy-back mandate, clearing the two-thirds approval threshold.

Dividend taxation • For non-resident enterprise H-shareholders, COSL will withhold 10 % enterprise income tax, subject to treaty relief procedures. • Individual H-shareholders face a default 10 % withholding rate, adjustable to treaty rates; Mainland investors under Southbound Trading are levied 20 %. • Mainland enterprise investors under Southbound Trading must self-declare taxes.

With all items carried, COSL has secured shareholder endorsement for its 2025 profit distribution, refreshed capital management flexibility, and subsidiary financing arrangements.