Yoosung Enterprise Co., Ltd. manufactures and supplies engine and auto parts primarily for internal combustion engines in South Korea and internationally. The company produces cast iron piston rings, stainless steel oil rings, cylinder liners, valve guides, camshafts, air compressors, and LSVAC loose sand vacuum assisted counter-gravity castings; its products serve automobile, marine, agricultural engines, motorcycles, compressors, industrial equipment, industrial refrigerators, and electric generators in both original equipment and replacement markets. Founded in 1959 and headquartered in Asan-si, Chungcheongnam-do, South Korea, Yoosung Enterprise operates factories in the region and exports to markets including the U.A.E., China, Germany, Iraq, and the U.S.A., with technical collaborations historically from Teikoku Piston Ring Co., Ltd. of Japan and Federal-Mogul of the U.S.A. The company maintains ongoing research and development focused on high-performance materials, unique designs, and special surface treatments for piston rings and cylinder liners to enhance engine performance. No major acquisitions, funding rounds, partnerships, or strategic expansions have been publicly reported in the last one to two years.