USG is an aftermarket auto parts brand that manufactures spare parts for a variety of car brands. The company specializes in producing parts for engine, suspension, brakes, exhaust and transmission systems, as well as interior and exterior body parts. USG is known for its high-quality, reliable parts that offer competitive prices compared to other aftermarket brands. USG's factories are located in China, the United States, and Mexico. USG's parts are designed to match the quality of the original parts and are known to be reliable and long-lasting. The brand is renowned for its competitive prices and excellent customer service.