- 1958Mr. Hsieh Yin Yu, founded TeLung Trading Co., Ltd. in Kaohsiung, engaged in import and sale of machinery parts for 26 factories in Taiwan's sugar industry.
- 1972TeLung relocated from Kaohsiung to Taipei in response to Taiwan Sugar Corporation's centralized procurement policy.
- 1986DMU2900 (diesel multiple unit 2900) of Taiwan Railways Administration was introduced from Hitachi, Ltd.. TeLung has been focused on rolling stock business since then.
- 1990Introduced 81 DMU3000 (diesel multiple unit 2900) from Hitachi, Ltd. to Taiwan Railways Administration.
- 1991Purchased office and relocated to current location.
- 1994Repositioned strategic direction, focusing on tilting trains to differentiate rolling stock market.
- 1999In response to demand, expanded operations at current office location.
- 1999Expanding service level by hiring and training rolling stock technical staff.
- 1999Dispatched technical staff to undertake maintenance for DHL(diesel-hydraulic locomotive) of cement plant in eastern Taiwan.
- 1999Commissioned by Westcode Incoporated of the United States, executed maintenance and warranty for air-conditioning and brake systems of Taipei MRT Tamsui Line, allowing TeLung to engage with MRT.
- 2000Commissioned by Kawasaki Railcar Manufacturing Co., Ltd., served as its after-sales service window for Taipei MRT Corporation.