ST板块盘初走强，20股涨停

Group 1 - The ST sector showed strong performance at the beginning of the trading session, with multiple stocks reaching the daily limit up [1] - Notable stocks that hit the limit include ST Ruihe (002620), *ST Yuancheng (603388), ST Qibu (603557), *ST Yazhen (603389), and ST Jiajia (002650) [1] - A total of 20 stocks in the ST sector experienced limit-up trading [1]