Jin Rong Jie·2025-08-19 09:04Group 1 - The Shanghai Composite Index fell by 0.02% to close at 3727.29 points, while the Hang Seng Index decreased by 0.21% to 25122.9 points [1] - Sinopec Oilfield Service Corporation (SSC) has an AH premium of 175.67%, ranking fourth among AH shares [1] - SSC's A-shares closed at 2.03 yuan, remaining flat, while H-shares closed at 0.8 Hong Kong dollars, down by 1.23% [1] Group 2 - SSC is a major integrated oil and gas engineering and technical service company controlled by China Petroleum & Chemical Corporation (Sinopec Group), 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]