SAMPYO Cement Co., Ltd. manufactures and distributes cement in South Korea. Its products include Portland cement, blast furnace slag cement, special-purpose cements, and clinker, and it exports to the United States, Japan, Africa, and other countries. The company was formerly known as TONGYANG Cement & Energy Corporation and changed its name to SAMPYO Cement Co., Ltd. in April 2017. Founded in 1957, it is headquartered in Samchok, South Korea.