SK Innovation Co., Ltd. is a South Korea–based energy and chemicals company within the SK Group. It oversees a portfolio spanning petroleum refining and marketing, petrochemicals, and lubricants, alongside advanced materials and battery businesses. Through major subsidiaries, the company operates across the full value chain, from refining and basic chemicals to specialty products and next‑generation energy technologies.
In chemicals, SK Innovation (via SK geocentric and related units) produces olefins, aromatics, and downstream derivatives used in plastics, packaging, and industrial applications, as well as premium base oils and lubricants. In new energy materials, the company is active in electric-vehicle battery technologies through SK On and manufactures lithium‑ion battery separators via SK IE Technology. It maintains R&D programs focused on high‑performance materials, safety, and process efficiency, and is advancing initiatives in recycling and circular solutions. SK Innovation serves automotive, electronics, mobility, and industrial customers globally with manufacturing and technology operations in Asia, Europe, and the Americas.