Thailand is rapidly scaling its printed circuit board industry, attracting over 200 billion baht in investment since 2022 as it aims to become a key player in the global AI hardware supply chain, driven by new large-scale factories and increasing demand from data centres and advanced electronics.
Printed circuit boards sit behind much of the technology industry’s visible progress, even if they rarely attract the same attention as semiconductors. In Thailand, that quiet role is turning into a strategic advantage as the country positions itself deeper inside the global AI supply chain. SCMP reported that WellTek Electronics’ new plant in Ayutthaya is designed to produce more than 1 million square metres of PCBs this year, underlining how quickly the sector is scaling.
The company’s US$75 million facility, built in less than a year, is the first of two planned sites in the industrial zone. According to WellTek founder Jennifer Deng, who established the Thai subsidiary of Jiangxi Welgao Electronics two years ago, the boards are fundamental to almost every electronic device. Thailand is now said to be South-east Asia’s largest PCB producer and the fifth largest globally, a position that reflects both manufacturing depth and the growing importance of components that support AI hardware, servers and other advanced systems.
That expansion is not happening in isolation. The Nation Thailand reported that PCB manufacturing in the country has attracted more than 200 billion baht in investment since 2022, driven by demand from AI, data centres and advanced electronics. It also pointed to Thailand’s infrastructure, workforce and incentive regime as key reasons investors are treating the country as a serious high-end manufacturing base.
The pressure is visible in capacity across the sector. Industry commentary cited by MPBXchange said AI-server demand is pushing some suppliers to full utilisation, while non-AI producers are operating at about half capacity. Separate reporting from Thailand Electronics Circuit Asia said 24 new players are expected to enter the market by 2025, with particular focus on multilayer boards, HDI and flexible circuits. Taken together, the trend suggests Thailand is moving from a general electronics base towards a more specialised role in the next phase of hardware manufacturing.
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