SK Enmove has signed a long-term supply contract with HF Sinclair, a major U.S. oil refiner, covering Group III base oils in North America. SK Enmove will supply its premium YUBASE base oil to HF Sinclair’s lubricants and specialties business, which will use the product in its own lubricants and distribute YUBASE exclusively in parts of North America. The companies aim to combine SK Enmove’s stable, high-quality production with HF Sinclair’s regional sales network as geopolitical risks linked to the Middle East have tightened global Group III base oil supply. SK Enmove said the agreement will significantly expand its North American sales channels and strengthen its position in the global market.