CHINA OILFIELD (02883) announced that the board received a written resignation report from Executive Director Mr. Xiao Jia on December 10, 2025. Mr. Xiao resigned as an executive director due to corporate governance restructuring, effective from December 10, 2025. On the same day, Mr. Xiao was elected as an employee representative director at the company's employee representative assembly. The appointment took effect on December 10, 2025, with a term of three years.