Iljin Hysolus Co., Ltd. engages in the manufacture and sale of composite tanks primarily in South Korea. It offers hydrogen tanks for use in forklifts, ships, trains, passenger cars, and commercial vehicles; tube trailers for use in hydrogen transport and mobile refueling stations; CNG storage tanks for CNG passenger and commercial vehicles; and ultrafine and fine particles PM and NOx reduction systems for diesel cars. The company was founded in 1999 and is headquartered in Bongdong-eup, South Korea. Iljin Hysolus Co., Ltd. operates as a subsidiary of ILJIN Diamond Co. Ltd.