Mr. Yin Zhixiang

Mr. Yin was an executive Director appointed on 27 February 2019 and the chief technical officer responsible for the overall research and development and technical management of the Group during the Year. With effect from 4 April 2022, Mr. Yin was re-designated as an non-executive Director. He has more than 40 years of experience in the operation of oilfield. He joined the Group on 23 August 2010. Mr. Yin has been the chief technical expert and deputy general manager of Dalipal Pipe since June 2017 and October 2016, respectively; the project manager of Dalipal Pipe since January 2018; and the deputy general manager for general affairs from November 2011 to October 2016 and the director of technical centre from December 2012 to October 2015 of Dalipal Pipe. He was also general manager of Dalipal Bohai Branch from November 2011 to May 2016. He was also the deputy manager for general affairs of Dalipal Equipment Manufacturing from July 2009 to November 2011 and the deputy general manager of Dalipal Group from July 2008 to July 2009. Prior to joining the Group, he was the director and deputy general manager of Rongsheng Machinery Manufacture Ltd. of Huabei Oilfield, Hebei (河北華北石油榮盛機械製造有限公司) from May 2002 to July 2008; and the dispatcher, chief of production division, branch factory manager and deputy factory manager, of the second machinery factory of North China Petroleum Management Authority* (華北石油管理局第二機械廠) from August 1981 to May 2002. Mr. Yin gained his experiences in machinery production in a factory located in Jiangsu in the PRC from March 1977 to August 1979. Mr. Yin had been a director of Dalipal Pipe prior to September 2020. Mr. Yin obtained a diploma in economics management from Communist Party of China Central Party College* (中共中央黨校函授學院) in December 1995 and a diploma in statistics from Hebei University in December 1989