On March 18, stocks within the PCB (Printed Circuit Board) concept experienced a rapid surge. Notably, Jinlu Electronics witnessed a remarkable increase of over 15%, with shares of Nantec and Aohong Electronic also following the upward trend. Dongwu Securities highlighted that there has been a substantial rise in the number of single LPU (Line Processing Unit) server trays, presenting a fresh growth avenue for the PCB industry.