Mr. MA Zhongfeng, born in November 1978, Chinese nationality, no long-term residence permit of foreign countries, Master Degree in management from Renmin University of China， accountant. He once worked as manager of the finance department of Sinochem Petroleum (Thailand) Company Limited, the deputy manager of the crude oil finance department of Sinochem International Petroleum Corporation, the deputy manager and manager of the finance department of Sinochem International Petroleum (London) Company Limited, the manager of the international trade finance department of Sinochem Petroleum Company Limited, the manager of the financing department of the fund management department of Sinochem Corporation, the general manager of the finance department of Sinochem Petroleum Company Limited, the financial controller, and the financial controller of Sinochem Quanzhou Petrochemical Company Limited. Mr. Ma is currently an executive director, the chief financial officer, the general counsel, the chief compliance officer and the deputy director of the refining operation centre of the Company.