Today, a total of 21 companies announced their stock buyback plans. Among them, 10 companies disclosed their stock buyback proposals, 1 company revealed the progress of its stock buyback implementation, and 10 companies have already completed their buyback plans. According to the buyback proposals, 4 companies plan to buy back shares worth over 10 million yuan each. SAIC Group, Guangdong Mingzhu, and Hemai Securities have the highest buyback proposals, planning to buy back shares worth no more than 2 billion yuan, 376 million yuan, and 200 million yuan, respectively. Regarding the implementation progress, one company repurchased shares worth over 10 million yuan on the day. Zitong Palace repurchased shares worth 10.47 million yuan, the highest among all companies. As for the completed buyback plans, 5 companies have repurchased shares worth over 10 million yuan on the day. Jiangsu Zhongneng, Chongqing Pharmaceutical Holdings, and Taiping Bird have completed the highest buybacks, repurchasing shares worth 200 million yuan, 40.3099 million yuan, and 28.3781 million yuan, respectively.