LJRB(SH:600853) Xin Lang Cai Jing·2025-09-01 04:48Group 1 - The core point of the article is the investigation of Zhang Hongshan, the former Party Secretary and Executive Director of Sinopec's Shengli Petroleum Engineering Co., for serious violations of discipline and law, currently under review by the Central Commission for Discipline Inspection and the National Supervisory Commission [1] Group 2 - Zhang Hongshan was born in December 1960 and graduated from Shengli Petroleum School with a major in oil extraction, holding the title of Senior Engineer [1] - He served as Deputy Mayor of Dongying City, Shandong Province, and held various positions in Shengli Oilfield Company before becoming Executive Director and Party Secretary of Sinopec Shengli Petroleum Engineering Co. in December 2016, retiring in December 2020 [1]