【Longming Green Energy】Announcement on the Change of Chairman of Important Subsidiary Tongkai Construction Co., Ltd.

1. Date of board resolution or change: 2026/05/11 2. Personnel type (please enter Chairman or General Manager): Chairman 3. Name of former incumbent: Chen Zhaolong 4. Brief resume of former incumbent: Deputy CEO of Longming Green Energy Technology Engineering Co., Ltd. 5. Name of new incumbent: Xu Jianlong 6. Brief resume of new incumbent: Chairman and General Manager of Longming Green Energy Technology Engineering Co., Ltd. 7. Type of change (please enter "resignation", "dismissal", "term expiration", "position adjustment", "layoff", "retirement", "death", or "new appointment"): New appointment 8. Reason for change: The board of directors of the important subsidiary passed the election on May 11, 2026. 9. Effective date of new appointment: 2026/05/11 10. Other matters to be specified (if the subject of the event or resolution is a public company or above, this material information also complies with Article 7, Paragraph 6 of the Enforcement Rules of the Securities and Exchange Act, which stipulates matters that have a significant impact on shareholders' equity or securities prices): None