Thailand to implement new rules for BOI-promoted companies

Thailand’s Board of Investment (BOI) has announced regulatory updates to introduce new compliance requirements for companies receiving BOI promotion. The changes are set to impact salary verification and local workforce ratios, particularly in the manufacturing sector.

 

Under the new rules, employers must submit employment contracts for new work permit applications and withholding tax records for renewals as proof of salary compliance. This requirement will apply across all BOI-promoted firms.

 

Manufacturing companies with more than 100 employees will also face a new local workforce quota. At least 70% of the workforce must be Thai nationals, with monthly social security filings required as proof. Exceptions may be granted for smaller firms or in special circumstances. Currently, there is no minimum ratio of Thai to foreign workers.

 

The BOI said the measures aim to increase transparency and strengthen local participation in BOI-supported businesses. Companies with BOI promotion certificates issued on or after June 5, 2025, must comply by October 1, 2025. Those with earlier certificates will have until January 1, 2026.

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