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Home / Company Formation & BOI / Foreign Business Act, FBL & the US-Thai Amity Treaty

Foreign Business Act, FBL & the US-Thai Amity Treaty

Business advisors preparing company documents — biz kb cluster cat
Business advisors preparing company documents — biz kb cluster cat

The Foreign Business Act B.E. 2542 prohibits foreigners from the List 1 activities outright, subjects List 2 to ministerial approval with Cabinet consent, and requires a licence from the Director-General with the approval of the Foreign Business Committee for List 3, which covers most service businesses. Section 4 treats a juristic person as foreign where half or more of its capital is held by foreigners. Minimum capital is three million baht per licensed business and two million baht for non-restricted business, as set by ministerial regulation. Nominee arrangements are prohibited by section 36 and carry both fine and imprisonment. US investors may instead rely on the Treaty of Amity and Economic Relations of 1966, obtaining a certificate rather than a licence.

Updated August 2026. Subordinate criteria change by notification — verify with dbd.go.th, boi.go.th, ipthailand.go.th and pdpc.or.th before acting.

Questions in this cluster — 3

  1. What does the Foreign Business Act restrict?
  2. Who counts as a foreigner under the Act?
  3. Can Americans own 100 percent of a Thai company?

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