Darling Ingredients is a developer and producer of sustainable natural ingredients from edible and inedible bio-nutrients. It offers a range of ingredients and customized specialty solutions, such as feed and fuel ingredients, collagen, edible fats, feed-grade fats, animal proteins and meals, plasma, pet food ingredients, organic fertilizers, yellow grease, fuel feedstocks, green energy, natural casings, and hides. The company serves customers in the pharmaceutical, food, pet food, feed, industrial, fuel, bioenergy, and fertilizer industries.