Don's Life In Thailand  (Chiang Mai)
Treaty of Amity
Amity Treaty

To Download Application Form CLICK HERE
The Nuts and Bolts of this Treaty is that a US citizen can own 100% of a company in Thailand

The Treaty of Amity and Economic Relations between the Kingdom of Thailand and the United States
of America (Treaty of Amity) was signed in 1966.

Instead of explaining everything on this page, I have listed below links to website that can explain it
in detail:

Amity Treaty (Cost)                                
US Embasy
Certification/Legalization                         $ 80
(Expedited Service  )                                $120
Thai Ministry of Commerce                      22,000 THB
  (THB 2,000 application fee and THB 20,000 for their certificate)