Sou Hu Cai Jing·2025-12-30 09:52Core Viewpoint - China Petroleum & Chemical Corporation (601857) has seen a recent increase in stock price and market capitalization, alongside a significant share buyback plan initiated by its controlling shareholder [1] Group 1: Stock Performance - As of December 30, 2025, China Petroleum's stock closed at 10.25 yuan, up 1.89% from the previous trading day [1] - The stock opened at 10.06 yuan, reached a high of 10.4 yuan, and a low of 10.02 yuan, with a trading volume of 17.63 billion yuan and a turnover rate of 0.11% [1] Group 2: Share Buyback Plan - The controlling shareholder, China National Petroleum Corporation, along with its wholly-owned subsidiary, announced a plan to increase their holdings in the company by purchasing A-shares and H-shares through the Shanghai and Hong Kong stock exchanges [1] - The planned investment amount ranges from 2.8 billion yuan to 5.6 billion yuan, with the buyback period set for 12 months starting from April 8, 2025 [1] - As of December 29, 2025, the controlling shareholder has acquired 30 million A-shares, representing approximately 0.02% of the total share capital, while the subsidiary has purchased 11.896 million H-shares, accounting for about 0.01% of the total share capital [1]