Hong Kong-listed PCB concept stocks rallied collectively in the afternoon, with Xinge Microelectronics (09630.HK) surging over 14.5%, Dingtai Hi-Tech (01377.HK) rising over 8%, Kingboard Laminates (01888.HK) climbing over 6%, and Shenghong Technology (02476.HK) and Guanghe Technology (01989.HK) both rising over 5%.