Thai Airways International Public Company Limited, together with its subsidiaries, engages in the operation of airlines. It operates through three segments: Air Transportation Activities, Business Units, and Other Activities. The Air Transportation Activities segment provides passenger, freight, and mail services. The Business Units segment offers cargo and mail commercial, ground customer, ground support equipment, and catering services. The Other Activities segment is involved in the transportation support activities, which include flight management services, sale of duty-free goods, and sale of souvenir products. It also provides aviation training, tourism, specialized personnel, and information technology services for the travel sector. The company was founded in 1959 and is headquartered in Bangkok, Thailand.