先进封装概念持续走强，大港股份、旷达科技双双涨停

Core Viewpoint - The advanced packaging concept continues to strengthen, with significant stock price increases for companies such as Dagang Co. and Kuangda Technology, both hitting the daily limit up [1] Group 1: Company Performance - Dagang Co. and Kuangda Technology both reached the daily limit up in stock price [1] - Other companies such as Shanzigaoke, Huazheng New Materials, Hanwujici-U, Xingsen Technology, Lianrui New Materials, and Tongfu Microelectronics also experienced stock price increases [1]