AdvanSix Inc. manufactures and sells polymer resins in the United States and internationally. It offers Nylon 6, a polymer resin, which is a synthetic material used to produce fibers, filaments, engineered plastics, and films. The company also provides caprolactam to manufacture polymer resins; ammonium sulfate fertilizers to distributors, farm cooperatives, and retailers; and acetone that are used in the production of adhesives, paints, coatings, solvents, herbicides, and engineered plastic resins, as well as other intermediate chemicals, including phenol, monoisopropylamine, dipropylamine, monoallylamine, alpha-methylstyrene, cyclohexanone, methyl ethyl ketoxime, acetaldehyde oxime, 2-pentanone oxime, cyclohexanol, sulfuric acid, ammonia, and carbon dioxide.

It offers its products under the Aegis, Capran, Sulf-N, Nadone, Naxol, and EZ-Blox brands. The company sells its products directly, as well as through distributors. AdvanSix Inc. was incorporated in 2016 and is headquartered in Parsippany, New Jersey.