Question: China Airlines established what low-cost carrier that is based at Taoyuan International Airport?
Context: China Airlines Flight 120 (Chinese: 中華航空120號班機事故, Japanese: チャイナエアライン120便炎上事故) was a regularly scheduled flight from Taiwan Taoyuan International Airport in Taoyuan County (now Taoyuan City), Taiwan to Naha Airport in Okinawa, Japan.  On August 20, 2007, the Boeing 737-800 aircraft operating the flight caught fire and exploded after landing and taxiing to the gate area at Naha Airport.  Four people (three from the aircraft and one ground crew) sustained injuries in the accident. China Airlines (CAL) () () is the flag carrier and largest airline of the Republic of China (Taiwan).  It is headquartered in Taoyuan International Airport and has 12,607 regular employees.  China Airlines operates over 1,400 flights weekly to 118 airports in 115 cities (including codeshare) across Asia, Europe, North America and Oceania.  The cargo division operates 91 pure freighter flights weekly.  The carrier was, in 2013, the 29th 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: Mandarin Airlines operates flights to domestic and low-demand regional destinations; China Airlines Cargo, a member of Skyteam Cargo, operates a fleet of freighter aircraft and manages its parent airline's cargo-hold capacity; Tigerair Taiwan is a low-cost carrier established by China Airlines and Singaporean airline group Tigerair Holdings and is wholly owned by China Airlines Group. The CAL Park (Chinese Traditional: 華航園區, Simplified: 华航园区, "Huáháng Yuánqū") is located in Dayuan District, Taoyuan City in the Republic of China (Taiwan).  The building is located next to Taiwan Taoyuan International Airport's terminals.  The CAL Park is the flagship building and headquarters for China Airlines. Taoyuan International Airport Corporation Ltd. (TIAC; ) is a government-owned corporation responsible for the management of Taiwan Taoyuan International Airport.  It is a company based in Taoyuan, Taiwan, Republic of China. The Chung Cheng Aviation Museum () was an aviation museum located at Taiwan Taoyuan International Airport in Dayuan Township, Taoyuan County (now Dayuan District, Taoyuan City), Taiwan.  The museum closed on March 31, 2014 to allow for planned construction of Terminal 3 at Taiwan Taoyuan International Airport and for relocation of taxiway WC.  Items displayed at the museum have been sent to storage and all 18 aircraft on display will be relocated to former Taoyuan Naval base during the second half of 2014. China Airlines Flight 676 (CAL676, CI676) was a scheduled international passenger flight that crashed into a road and residential area in Tayuan, Taoyuan County (now Taoyuan City), near Chiang Kai-shek International Airport (present-day Taoyuan International Airport), Taiwan on the night of Monday, 16 February 1998. Tigerair Taiwan () is a low-cost carrier (LCC) based at Taoyuan International Airport.  The airline has a fleet of ten aircraft as of March 2017.  It was the first and now sole Taiwan-based LCC.  It was formed as a joint venture between China Airlines Group and Budget Aviation Holdings. The Taiwan Taoyuan International Airport Access MRT (commonly known as the Airport MRT) of the Taoyuan Metro is a rapid transit line that connects the municipalities of Taipei, New Taipei, and Taoyuan with Taoyuan International Airport.  The 51.03 km line began commercial service on March 2, 2017. Taiwan Taoyuan International Airport (IATA: TPE, ICAO: RCTP) is an international airport serving the capital city of Taipei, Taiwan, and northern parts of the island.  Located about 40 km west of Taipei in Dayuan District, Taoyuan, the airport is Taiwan's largest and busiest airport.  It is one of five Taiwanese airports with regular international flights, and is operated by the Taoyuan International Airport Corporation.  In 2016, it was ranked the best airport for its size in the Asia-Pacific region by Airports Council International. Taoyuan International Airport Services (Abbreviation: TIAS; Chinese: 桃園國際機場地勤服務公司, commonly abbreviated 桃園航勤), founded in 1979, is currently the largest ground handling provider at Taoyuan International Airport, providing services for 30 scheduled airlines, out of 38 that served in Taoyuan International Airport.  It is a subsidiary of China Airlines Group.
Answer: Tigerair Taiwan