SK Lubricants Co., Ltd. (now SK Enmove) is a South Korean producer of base oils and finished lubricants, and a subsidiary of SK Innovation within the SK Group. The company is a leading global supplier of API Group III and Group II base oils, notably under the YUBASE brand, which are used by automotive and industrial lubricant formulators worldwide.
Headquartered in Seoul with major manufacturing in Ulsan and a global supply network, SK Lubricants provides base stocks for engine oils, transmission fluids, and industrial applications, as well as finished lubricants marketed under the ZIC brand. The company’s R&D focuses on low-viscosity, high-performance formulations that help meet modern fuel-economy and emissions requirements, alongside emerging fluids for electrified powertrains and thermal management. SK Lubricants operates through international partnerships and logistics hubs to serve OEMs, blenders, and distributors across key regional markets.