https://www.baseoilnews.com/asia/south-korea/skorea-bsae-oils-output-falls-april-2026 https://media.assettype.com/baseoilnews/2026-05-25/0bskt1vh/Ulsan-port-Shutterstock.jpg https://media.assettype.com/baseoilnews/2026-05-25/v34vs4q9/S-Korea-output-April-2026.png Output falls baseoilnews en 2026-05-25T04:30:00.000Z S Korea’s April Base Oils Output Falls To One-Year Low South Korea base oils output, South Korea refinery run rates, Group III base oils supplhy, Asia base oils availability, South Korea diesel output, base oils production share, lubricants feedstock supply, base oils prices, base oils supply recovery