Jin Rong Jie·2025-08-12 08:51Group 1 - The Shanghai Composite Index rose by 0.5%, closing at 3665.92 points, while the Hang Seng Index increased by 0.25%, closing at 24969.68 points [1] - Sinopec Oilfield Service Corporation (SSC) has an AH premium of 177.02%, ranking fourth among AH shares [1] - SSC's A-shares closed at 2.03 yuan, while its H-shares closed at 0.8 Hong Kong dollars, up by 1.27% [1] Group 2 - SSC is a major integrated oil and gas engineering and technical service company controlled by China Petroleum & Chemical Corporation, with over 60 years of operational experience [1] - The company was formed through the restructuring of various oilfield enterprises and has been listed in both Shanghai and Hong Kong since 2014 [1] - The stock codes for SSC are SH600871 for A-shares and HK1033 for H-shares [1]