[PCB concept continues to rise, Oscon and other stocks hit their daily limit] On November 9th, the PCB concept continued to rise during the session, and Osconn closed its daily limit. Previously, Shiyun Circuit and Ultrasonic Electronics hit their daily limit, and Mankun Technology, Shenghong Technology, Shanghai Electric Co., Ltd., Chongda Technology, Huazheng New Materials and other stocks rose by more than 5%. According to the news, in the early morning of November 4, a serious explosion and fire occurred at the Hukou factory of Panasonic Multilayer Materials (PIDMTW) in Hsinchu, Taiwan, China. The fire area accounted for about one-third of the factory area. Panasonic Group is one of the world's major suppliers of high-end copper clad laminates (CCL). The Hukou plant is an important production base for Panasonic's flagship high-speed copper-clad laminate MEGTRON series (ultra-low loss materials such as M6, M7, and M8), and its production capacity accounts for about 20% of Panasonic's global production capacity of this series of products.