安东油田服务1月12日回购620.60万股，耗资499.96万港元

Group 1 - The core point of the article is that Antong Oilfield Services announced a share buyback on January 12, purchasing 6.206 million shares at a price range of HKD 0.770 to HKD 0.810 per share, totaling HKD 4.9996 million [1] - The closing price of the stock on the day of the buyback was HKD 0.790, reflecting an increase of 1.28% [1] - The total trading volume for the stock on that day was HKD 11.9362 million [1] Group 2 - The buyback details include the number of shares repurchased, the highest and lowest prices during the buyback, and the total amount spent [1] - The buyback occurred on January 12, 2026, with specific figures provided in a detailed table format [1]