Thai Airways International Head Office Complex and National Flag Carrier located on Vibhavadi Rangsit Road, consist of a 27 floors, a total floor area of 67,000 m2.

Southeast Asia Technology Co., Ltd. (SEATEC) was appointed to design for civil and structural works, manage and supervision of all construction works which included installation of the related architectural and engineering works, such as civil, structures, infrastructure, sanitary and plumbing, electrical system, elevator, mechanical system, air conditioning, fire protection system, related service systems, etc.