The PCB concept continued to rise in the intraday market. Previously, Shiyun Circuits and Ultrasonic Electronics went up and down, and many stocks such as Mankun Technology, Shenghong Technology, Shanghai Electric Power Co., Ltd., Chongda Technology, and Huazheng New Materials rose more than 5%. According to news, in the early morning of November 4, a serious explosion and fire broke out at Panasonic's Hukou multi-layer materials factory in Taiwan, China. The fire area covered about one-third of the factory area. The Panasonic Group is one of the world's leading suppliers of high-end copper-clad panels. The Hukou factory is an important production base for Panasonic's flagship MEGTRON series of high-speed copper-clad plates. The production capacity accounts for about 20% of Panasonic's global production capacity.

The PCB concept continued to rise in the intraday market. Previously, Shiyun Circuits and Ultrasonic Electronics went up and down, and many stocks such as Mankun Technology, Shenghong Technology, Shanghai Electric Power Co., Ltd., Chongda Technology, and Huazheng New Materials rose more than 5%. According to news, in the early morning of November 4, a serious explosion and fire broke out at Panasonic's Hukou multi-layer materials factory in Taiwan, China. The fire area covered about one-third of the factory area. The Panasonic Group is one of the world's leading suppliers of high-end copper-clad panels. The Hukou factory is an important production base for Panasonic's flagship MEGTRON series of high-speed copper-clad plates. The production capacity accounts for about 20% of Panasonic's global production capacity.