Group 1 - The A-share market saw active trading in PCB concept stocks, with notable gains in several companies [1] - Tian Tong Co., Ltd. and Jin An Guo Ji both reached the daily limit up, while Xian Feng Holdings also showed significant growth [1] - Other companies like Da Zhu CNC and Si Hui Fu Shi experienced increases of over 9%, indicating strong market interest [1] Group 2 - Tian Tong Co., Ltd. had a price increase of 10.03%, with a total market capitalization of 16.2 billion [2] - Jin An Guo Ji rose by 10.01%, bringing its market value to 17 billion, and has a year-to-date increase of 39.44% [2] - Xian Feng Holdings increased by 9.97%, with a market cap of 4.328 billion and a year-to-date growth of 12.33% [2] - Da Zhu CNC saw a rise of 9.37%, with a market capitalization of 75.1 billion and a year-to-date increase of 48.57% [2] - Si Hui Fu Shi's stock price increased by 9.14%, with a market cap of 7.305 billion and a year-to-date growth of 19.20% [2] - Baiyin Youse and Zhongjing Electronics both experienced gains of over 6%, with market caps of 67.8 billion and 7.952 billion respectively [2] - Guanghe Technology and Chongda Technology saw increases of over 5%, with market caps of 43 billion and 18.8 billion respectively [2]