SSC(SH:600871) Shang Hai Zheng Quan Bao·2026-01-29 19:21Core Viewpoint - The stock of Sinopec Oilfield Service Corporation experienced an abnormal trading fluctuation, with a cumulative closing price increase of over 20% over three consecutive trading days from January 27 to January 29, 2026 [2][4]. Group 1: Stock Trading Abnormality - The company's A-share stock price deviated significantly, with a cumulative increase exceeding 20% over three consecutive trading days [2][4]. - This fluctuation is classified as an abnormal trading event according to the Shanghai Stock Exchange trading rules [2][4]. Group 2: Company Verification and Situation - The company conducted a self-examination and confirmed that there are no undisclosed significant matters related to the company or its controlling shareholder, Sinopec Group [5][6]. - The company's production and operational status remain normal, with no significant changes in market conditions or industry policies [5]. - There have been no media reports or market rumors that could impact the company's stock price [7]. Group 3: Sensitive Information - No other significant events that could greatly affect the company's stock price have been identified [8]. - During the period of stock price fluctuation, company directors and senior management did not engage in buying or selling the company's stock in the secondary market [8].