Thai authorities probe 19 companies for nominee violations after revoking naturalized citizen's nationality

Interior Minister Anutin Charnvirakul has revoked the Thai citizenship of a naturalized citizen after discovering he used his US passport 16 times. Following the revocation, authorities immediately launched an investigation into 19 associated companies to determine if they operate as illegal nominee structures.

According to reports from the Bangkok Post and Nation Thailand, the individual, identified as a rabbi, and his relatives are now under intense scrutiny. The investigation marks a sharp escalation in how the government handles suspected foreign ownership violations, moving swiftly from an individual immigration penalty to a broad corporate audit.

This aligns with a broader 2026 enforcement program highlighted by legal firm Mahanakorn Partners. Authorities are no longer just checking if a company has 51 percent Thai ownership on paper. They are now actively testing the actual funding, control, and economic rights behind the business to ensure the Thai partners are legitimate investors, not just passive names on a registry.

What this means for foreign business owners

If you operate a business in Thailand using a standard 51/49 Thai-foreign ownership split, the compliance landscape has fundamentally changed.

• Paper compliance is no longer enough: Authorities are looking past shareholder registries to see who actually funds the company and holds the voting power.
• Cross-department enforcement: The trigger for this probe—using a foreign passport after obtaining Thai citizenship—shows that immigration, interior, and business development departments are actively sharing data.
• Broader crackdowns are active: This investigation follows recent raids on 32 suspected nominee firms in Koh Phangan and the issuance of arrest warrants in corporate concealment cases earlier this year.

Foreign investors should review their corporate structures immediately. If your Thai majority shareholders do not have the independent financial means to support their stake, or if voting rights disproportionately favor the minority foreign shareholder, your business is at high risk under the current enforcement regime.