A tripartite joint venture was established by China National Aviation Corporation (Group) Limited (CNAC Group), British Airways Limited (BA) and Hutchison Whampoa (China) Limited (HWCL) on 17^th January 1995, with CNAC Group holding 40% share while BA and HWCL each holding 30% share. Addition of United Airlines, Inc. (UAL) to the joint venure on 30^th June 1995 as a shareholder changed the shareholding in CASL to 40% by CNAC Group and 20% each by BA, HWCL and UAL.