Hengka Co Ltd: Subsidiary Yushen Chemicals to undergo routine maintenance and inspection.

Announcement of Xinghua Corporation: The holding subsidiary Yushen Energy and Chemical Co., Ltd., Shaanxi Yanchang Petroleum, will begin routine maintenance of production facilities on June 5, 2025, with an expected duration of about 35 days. This maintenance is part of the annual routine maintenance and will have a certain impact on the company's operational performance in June and July, but will not have a significant impact on the overall performance for the year 2025. The maintenance will help improve the performance and operational quality of production equipment, ensure the safe and efficient operation of the production facilities, and promote the healthy development of Yushen Energy and Chemical Co., Ltd.