Hong Kong PCB concept stocks rose sharply in afternoon trading, with Xinqi Micro-assembly (09630.HK) up more than 14.5%, Dingtai High-tech (01377.HK) up more than 8%, Ka Yan Laminate (01888.HK) up more than 6%, and Shennan Circuits (02476.HK) and Guanghe Technology (01989.HK) both up more than 5%. According to Jin10,
