Its subsidiary of National Aerospace and Defence Industries Sdn Bhd (NADI) and incorporated by Ministry of Finance (MoF).

ATSC's core business is to support Russian made aircraft in Malaysia especially Malaysian Armed Forces such as Mikoyan MiG-29 and Sukhoi Su-30.

STC also provided Service Life Extension Programme (SLEP) and 10 Years Preventive and Restoration Works (PRW) for Sukhoi Su-30.

Over the years, ATSC has developed resources and expertise providing total support for MiG-29N and Su-30MKM aircraft include maintenance, supply and distribution of spares and materials for repair and overhaul, technical services, upgrading and modernization covering engines, airframe and avionics.

ATSC engineers and technicians undergo various trainings locally and internationally to ensure precision in performing the maintenance works on the aircraft.