Core Viewpoint - The article discusses the leadership transition at Sinopec Group, highlighting the appointment of Hou Qijun as the new chairman, succeeding Ma Yongsheng, who has been instrumental in the company's upstream oil and gas exploration efforts [1][2]. Group 1: Leadership Transition - On June 27, Sinopec Group announced the removal of Ma Yongsheng from the position of chairman and party secretary, with Hou Qijun taking over [1]. - Ma Yongsheng had a significant career at Sinopec, contributing to the development of the company's upstream exploration capabilities and was recognized as an academician of the Chinese Academy of Engineering in 2009 [2]. - Hou Qijun, the new chairman, has extensive experience within the oil industry, having held various positions in China National Petroleum Corporation (CNPC) and Sinopec [3]. Group 2: Contributions of Ma Yongsheng - Ma Yongsheng played a crucial role in the early management of Sinopec's upstream business, overseeing significant projects such as the discovery of the Puguang gas field and the Yuanba gas field [2]. - His academic contributions to sedimentology and petroleum geology were acknowledged with the naming of an asteroid after him, reflecting his impact on the field [2]. Group 3: Background of Hou Qijun - Hou Qijun has a long-standing career in the oil sector, having served in various capacities, including vice general manager of Daqing Oilfield and general manager of Jilin Oilfield [3]. - His experience includes leadership roles in CNPC's planning and natural gas divisions, showcasing his comprehensive understanding of the industry [3].

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].