TL Engineering Co., Ltd. engages in the design and construction of clean rooms and building facilities. It provides clean rooms, air conditioning, and utilities in various fields such as pharmaceuticals, bio, food, cosmetics, medical devices, and films and coatings, as well as the small and medium industries such as semiconductors, LCD, and OLED. The company was founded on December 9, 2002 and is headquartered in Gwangmyeong-si, South Korea.