[PCB concept rises again, Ultrasonic Electronics has 3 boards in 5 days] On September 11th, the PCB concept rose again in the afternoon, with Ultrasonic Electronics having 3 boards in 5 days. Previously, Aohong Electronics and Concord Electronics hit the limit, and Chongda Technology, Bomin Electronics, Xunjiexing, Junya Technology, etc. followed suit. On the news, institutional research reports pointed out that as the prices of electronic cloth, copper foil and CCL continue to rise, PCB manufacturers have successively started to re-quote. Compared with upstream materials, there is a certain time lag in price increases by board manufacturers. Q3 is expected to be the starting point for product prices, capacity utilization and order structure to improve together.