Concept stocks related to PCB are fluctuating and strengthening, with China Electronics Technology Group and Jiangsu Jin'an Security making limit-up gains.

Concept stocks in the PCB sector are fluctuating and strengthening. Dongshan Precision, New Ray Stock hit a new high in intraday trading. Sino-UK Technology, Jin'an Guoji are at the daily limit. Xunjie Xing is up over 15%, Yihao New Materials is up over 10%. Yishi Tong, Ben Chuan Intelligent, Qiangda Circuit, Soeitech, Guanghe Technology are following the upward trend.