China Petroleum: President Huang Yongzhang resigns due to work changes.

Announcement from China Petroleum: Due to work changes, the Board of Directors and President, Huang Yongzhang, has submitted his resignation to the company on September 19, 2025, resigning from all positions and no longer holding any positions in the company or its subsidiaries. During his tenure in the company, Huang Yongzhang made significant contributions to the steady growth and high-quality development of the company's operations.