Core Viewpoint - The leadership transition at Sinopec Group involves the removal of Ma Yongsheng as Chairman and Party Secretary, with Hou Qijun appointed as his successor, marking a significant change in the company's management structure [1][3]. Group 1: Leadership Changes - Ma Yongsheng has been a key figure in Sinopec's upstream exploration and development, particularly in marine carbonate rock oil and gas exploration theory [1][3]. - Hou Qijun, the new Chairman, has extensive experience within the China National Petroleum Corporation (CNPC) system, having held various positions since 1984 [3][5]. Group 2: Contributions and Achievements - Ma Yongsheng played a crucial role in the discovery of major gas fields such as the Puguang and Yuanba gas fields and was involved in the "West-to-East Gas Transmission" project [3]. - In recognition of his contributions to oil and gas exploration, an asteroid was named "Ma Yongsheng Star" in 2017 [3]. Group 3: Background of New Chairman - Hou Qijun has held several significant positions, including Deputy Chief Geologist and General Manager at Daqing Oilfield, and has been involved in various leadership roles within CNPC [4][5].