DuPont Tate & Lyle BioProducts

CovationBio PDO, formerly known as DuPont Tate & Lyle BioProducts, is a leading producer of renewably sourced 1,3-propanediol (Bio-PDO). The company utilizes a proprietary fermentation process to convert plant-derived sugars into high-performance ingredients for a variety of industries. Its flagship products, Zemea and Susterra, serve as sustainable, petroleum-free alternatives to glycols in cosmetics, personal care, and pharmaceuticals. Zemea is specifically marketed as a high-purity humectant and solvent for the life sciences sector, while Susterra is used in industrial applications like polyurethanes and heat transfer fluids. Headquartered in Loudon, Tennessee, the company operates the world's largest aerobic fermentation plant dedicated to Bio-PDO production.