SJM Holdings Co.,Ltd., through its subsidiaries, provides flexible tube for automobile exhaust pipes in South Korea, Europe, the Americas, China, Southeast Asia, Africa, and Australia. It also provides precision bellows that are used in precision instruments, including semiconductor, medical devices, airplanes, etc.; expansion joints for architecture, which are used for HVAC of large scale residential facilities and high rise buildings; and industrial expansion joints that are used for large ships, petrochemical processing, power generation, LNG, etc. The company was founded in 1975 and is headquartered in Ansan-si, South Korea.