Currently, AOT manages 6 international airports, Don Mueang, Phuket, Chiang Mai, Hat Yai, Chiang Rai and Suvarnabhumi, all of which serve domestic and international flights. In 2018, the company became the most valuable airport operator in the world.

AOT was established on 20 September 2002, as a result of the privatisation of the state-owned Airports Authority of Thailand (AAT). At that time, the company was worth 14,285,700,000 baht. The Thai government held, and still holds, 70 percent of the company’s stock. During fiscal year 2014 AOT’s average daily market capitalization was 282,321 million baht.

AOT’s main revenue comes from: (a) aviation revenue including landing fees, parking fees, passenger service fees and aircraft service fees, and (b) non-aviation revenue including revenue franchises, office and real estate rents and service revenues.

All activities of AOT revolve around 5 main core values of the company: Service minded, Safety and security precaution, Internal and external communication and participation, Learning continuation, Transparency with Corporate Social Responsibility (CSR).

As of January 2022, the company’s market capitalization has reached about $26 billion.

According to Wikipedia and airportthai.co.th