WHAT THEY CAN BUILD
Which PCB factories in Thailand hold UL?
3 of the 17 plants that publish their certificates list UL: Apcb Electronics (Thailand) · Victory Giant Technology, Circuit Industries and WUS Printed Circuit (Thailand).
Plants listing UL
| Plant | Province | Industrial estate | Parent from | Status | Certificates listed |
|---|---|---|---|---|---|
| Apcb Electronics (Thailand) · Victory Giant Technology | Phra Nakhon Si Ayutthaya | Bang Pa-in Industrial Estate | China | ramping up | UL |
| Circuit Industries | Samut Sakhon | not stated | Thailand | operating | UL, ISO 9001, ISO 14001, ISO 45001, IATF 16949, TLS 8001 |
| WUS Printed Circuit (Thailand) | Phra Nakhon Si Ayutthaya | Rojana Industrial Park Ayutthaya | China | operating | ISO 9001, ISO 14001, UL |
How this was counted
Counted from the MPBxChange plant register: one record per bare-board fabrication site in Thailand, each traced to public sources such as company announcements, stock exchange filings, Board of Investment approvals and the Thai company register. Assembly-only sites are not counted. A plant that has left no public trace is missing here, so read every count as "at least". Only 17 of the 39 plants publish their certificates, so a plant missing from this list may simply not say. Confirm with the factory before relying on it. A listing here is what the plant or its parent says in public. It is not a check against the issuing body, and certificates expire: ask for the current one.
Records last reviewed