Thai Rung (Thai: ไทยรุ่ง) is the only Thai-based automobile manufacturer. The company, established in 1967, began assembling Isuzu, Nissan and Chevrolet vehicles. In addition to assembly, TRU manufactures its own brand car, under the name Thai Rung (also called TR), based on other small and medium truck platform.
The company was first listed on the Stock Exchange of Thailand on 21 November 1994 (1994-11-21),. It remains 70% owned by the Phaoenchoke family members, with Sompong Phaoenchoke being the CEO of the company.
In 1999, Thai Rung supplied the Chevrolet plant in Arica, Chile with Grand Adventure body parts to make the Chevrolet LUV Wagon and the Grand LUV.
Sales of the Adventure Master, based on the Isuzu D-Maxpickup started in 2003 with about 300 units sold per month. At he same time sales of the Xciter, based on Nissan Frontier D22, were around 100 units per nonth.