Group 1 - The A-share PCB concept stocks experienced a significant surge, with Dongcai Technology hitting the daily limit [1] - Other companies such as Dongshan Precision, Shenghong Technology, Dingtai High-Tech, Sany Electronic, Pengding Holdings, and Jingwang Electronics also saw increases in their stock prices [1]

Group 1 - The A-share PCB concept continues to rise, with International Composite Materials hitting the daily limit up of 20% [1] - Stocks such as Copper Crown Copper Foil, Yihau New Materials, Honghe Technology, and Jin'an Guoji also experienced gains [1]

Core Viewpoint - The A-share PCB concept continues to rise, with several companies showing significant stock performance, indicating a positive trend in the industry [1] Group 1: Company Performance - Jin'an Guoji has achieved a three-day consecutive increase in stock price [1] - Honghe Technology has seen its stock rise three times in five days [1] - Defu Technology and Tongguan Copper Foil have both increased by over 10% [1] - Pengding Holdings, Lianrui New Materials, Zhongying Technology, and International Composite Materials are among the top gainers in the market [1]