華信航空
On 16 October 1991, Mandarin Airlines started operations with direct flights from Taipei to Sydney in Australia. The next step was the opening of a direct air route to Vancouver in Canada on 7 December 1991. Thus, Mandarin Airlines became Taiwan's first airline to fly direct to Australia and Canada. The China Trust Group pulled its investment in Mandarin Airlines on 31 October 1992, turning the airline into a company virtually wholly owned by China Airlines (90.05%) by December 1992. Also, Mandarin Airlines' role was changed to that of a primary domestic and short-range intra-regional airline, after parent China Airlines was able to re-establish its emphasis on international routes, due to a new livery that did not include the national flag, and thus faced less objection from the PRC.