SIA Engineering is involved in twenty-five joint ventures and subsidiaries with original equipment manufacturers and airlines in Singapore, Hong Kong, Indonesia, Japan, the Philippines, the United States, Vietnam, and Thailand.
[7] Eagle Service ASIA Pte Ltd (ESA) is a 49/51 joint venture between SIA Engineering Company (SIAEC) and Pratt & Whitney (P&W).
[10][11] Turbine Coating Services Pte Ltd (TCS) is a 24.5/51/24.5 joint venture between SIA Engineering Company (SIAEC), Pratt & Whitney (P&W) and Singapore Technologies Aerospace (STA).
ACE Service's core focus is in the repair, overhaul test, and recertification of aircraft hydro-mechanical components, such as the 5000 psi hydraulic system of the Boeing 787 and Airbus A350.
[16] Fuel Accessory Service Technologies Pte Ltd (FAST) is a 49/51 joint venture between SIA Engineering Company (SIAEC) and Collins Aerospace (formerly UTAS).
[17] Goodrich Aerostructures Service Centre - Asia Pte Ltd (GASCA) is a 40/60 joint venture between SIA Engineering Company (SIAEC) and Collins Aerospace.
GASCA's core focus is the maintenance, repair, and overhaul (MRO) of nacelle systems and airframe composite components to APAC customers, for aircraft such as the Boeing 787 and Airbus A350.
It provides support, repair, and overhaul services for Safran's avionics and electronics equipment, as well as for other OEMs, namely Airbus, Honeywell, Hamilton-Sundstrand, Thales, Rockwell-Collins, BAE Systems, etc.
PAPAS' core business is a full suite of line maintenance services at Hong Kong International Airport, from aircraft certification to ramp handling.
Its core focus is the provision of line maintenance and ramp handling services at 16 major Indonesian airports, including Cengkareng, Surabaya, Denpasar, and Medan, serving more than 43 airlines and cargo operators.
SAAM's core business is the provision of technical and non-technical handling of aircraft such as non-destructive testing, cleaning, and defect rectification, at airports in Ho Chi Minh City, Hanoi, Nha Trang, and Da Nang.