Soybean oil (~61 MMT, $65B+) is the world's second-largest vegetable oil after palm oil. Produced as 18-19% co-product of soybean crushing (alongside 79-80% meal). Argentina is world's largest exporter (~5-6 MMT, ~70% of production exported - export tax structure favors crushing over bean exports). USA renewable diesel boom is the structural game-changer: US capacity expanded 500% from 2018-2025; consumes 4-5 MMT of US oil (40-50% of domestic production), growing to 6-7 MMT by 2026-27. CBOT (ZL) is the global price reference. Soy-palm spread (~$100-200/MT premium for soy) drives Indian buying behavior. India is largest single importer (3-4 MMT) for cooking. Major dynamics: trans-fat elimination, high-oleic varietal adoption (Plenish/Vistive Gold), palm oil substitution, Argentina export tax (31%).