CNOOC Limited announced that its actual controller, China National Offshore Oil Corporation (CNOOC Group), has extended the current shareholding-increase plan by 12 months to 8 April 2027. All other terms of the plan remain unchanged.

From 9 April 2025 to 26 March 2026, CNOOC Group acquired a total of 25,003,500 shares, equivalent to 0.0526% of the company’s issued share capital, for a combined consideration of RMB402.79 million. The purchases were split between: • A-share purchases: 705,500 shares for RMB30.01 million. • Hong Kong-listed shares: 24,298,000 shares for RMB372.78 million.

Despite the acquisitions, the cumulative buying has not yet reached the lower limit originally set in the plan, prompting the extension.

As of the announcement date, CNOOC Group and its concert parties held 29,533,356,773 shares—approximately 62.14% of total shares outstanding. The breakdown includes 759,924,000 Hong Kong shares and 705,500 A shares held directly by CNOOC Group, five Hong Kong shares held by wholly owned subsidiary Overseas Oil & Gas Corporation, and 28,772,727,268 Hong Kong shares held by CNOOC (BVI) Limited.

CNOOC Group has undertaken not to reduce its holdings during the implementation period of the plan and within any statutory lock-up period. The company will continue to disclose progress in accordance with regulatory requirements.