US-Thailand Treaty of Amity
The US–Thailand Treaty of Amity and Economic Relations (“Treaty of Amity”) is a cornerstone of bilateral economic relations between the United States and Thailand. Signed in 1966, the treaty grants qualifying American individuals and companies preferential treatment when conducting business in Thailand. In practice, it allows majority or wholly American-owned companies to operate in Thailand on a national treatment basis—meaning they are treated as Thai companies for most business purposes—despite Thailand’s otherwise restrictive foreign business regime. This article provides a comprehensive explanation of the Treaty of Amity , including its legal foundation, benefits, limitations, eligibility requirements, application procedures, and practical implications for US investors. 1. Legal background and purpose The Treaty of Amity was established to promote: Mutual economic cooperation Cross-border investment Commercial confidence between the US and Thailand Thailand’s general f...