China Airlines has invested in China Aircraft Services Limited (CASL), based in Hong Kong. Beginning in January 2006, China Airlines will switch its aircraft maintenance work at Hong Kong airport from HAECO to CASL. CASL offers a comprehensive range of aircraft maintenance and support services which cover maintenance operations, cabin services, ground support equipment, supply and stores.
CASL was established in 1995 as an international joint venture of four leading companies: China National Aviation Corporation (CNAC), British Airways, Hutchison Whampoa and United Airlines. The China Airlines investment will buy a 13.33% stake from CNAC and a 6.67% stake from Hutchison Whampoa. Following the investment, CNAC will hold a 40% share in CASL, and China Airlines, Hutchison Whampoa and United Airlines will each hold 20%.