China Airlines (CAL) (Chinese: 中華航空; pinyin: Zhōnghuá Hángkōng) is Taiwan's national and largest airline. It is headquartered in Taoyuan International Airport and operates over 1400 flights weekly (including 91 pure cargo flights) to 102 cities across Asia, Europe, North America and Oceania. Carrying over 19 million passengers and 5700 tons of cargo in 2017, the carrier was the 33rd and 10th largest airline in the world in terms of passenger revenue per kilometer (RPK) and freight RPK, respectively. China Airlines has three airline subsidiaries: China Airlines Cargo, a member of Skyteam Cargo, operates a fleet of freighter aircraft and manages its parent airline's cargo-hold capacity; Mandarin Airlines operates flights to domestic and low-demand regional destinations; Tigerair Taiwan is a low-cost carrier established by China Airlines and Singaporean airline group Tigerair Holdings, but is now wholly owned by China Airlines Group.