Iljin Hysolus Co., Ltd. manufactures and sells composite tanks, primarily in South Korea. Its products include hydrogen tanks for forklifts, ships, trains, passenger cars, and commercial vehicles; tube trailers for hydrogen transport and mobile refueling stations; CNG storage tanks for passenger and commercial vehicles; and PM and NOx reduction systems for diesel cars. Founded in 1999, the company is headquartered in Bongdong-eup, South Korea, and operates as a subsidiary of ILJIN Diamond Co. Ltd.