Zhen Ding Technology (ZDT), the world’s biggest printed circuit board maker (PCB), saw revenue from servers, optical modules and substrates rise 113% year-on-year in the 1st half of 2026, media report, adding executives said they accounted for 21.6% of total revenue of NT$89.2 billion, up from 11.7% last year. ZDT plans to spend NT$80 billion on capex this year, with investment continuing into 2027-2028.