Investment Promotion Act, B.E. 2520 (1977).

The Investment Promotion Act B.E. 2520 (A.D. 1977) was enacted to stimulate investment in Thailand.
A board of investment (BOI) shall be established to promote both foreign and Thai investment by providing tax and non-tax incentives. The activities which are eligible for investment promotion by the Board are those which are important and beneficial to the economic and social development, and security of the country, activities which involve production for export, activities which have high content of capital, labour or service or activities which utilise agricultural produce or natural resources as raw materials, provided that in the opinion of the Board, they are non-existent in the Kingdom, or existent but inadequate, or use out-of-date production processes (Section 16). Investment projects shall be those which incorporate appropriate measures to prevent and control harmful effects on environmental quality (Section 19).