Airports of Thailand Public Company Limited (Plc), or AOT, was established from the corporatization of the Airports Authority of Thailand, a state enterprise. It became a public company on 30 September 2002, with a total registered capital of THB 14,285,700,000, divided into 1,428,570,000 ordinary shares at a par value of THB 10. The Ministry of Finance is the largest shareholder with a 70% stake, with the other 30% held by institutional and retail investors. AOT's head office is located at 333 Cherdwutagard Road, Don Mueang, Bangkok 10210. Its telephone number is 66 (0) 2535-1111.