WHAT THEY CAN BUILD

Which PCB factories in Thailand hold UL?

1 of the 12 plants that publish their certificates list UL: Circuit Industries.

Plants listing UL

PlantProvinceIndustrial estateParent fromStatusCertificates listed
Circuit IndustriesSamut Sakhonnot statedThailandoperatingUL, ISO 9001, ISO 14001, ISO 45001, IATF 16949

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 12 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