Darling Ingredients, Inc. engages in the development and production of natural ingredients from edible and inedible bio-nutrients. It supplies solutions for customers in the pharmaceutical, food, pet food, feed, technical, fuel, bioenergy and fertilizer industries. It operates through the following segments: Feed Ingredients, Food Ingredients. and Fuel Ingredients. The Feed Ingredients segment includes ingredients business, including fats and proteins, used cooking oil, trap grease and food residuals collection businesses, the Rothsay ingredients business, and the ingredients and specialty products businesses. The Food Ingredients segments comprises of the gelatin business, the natural casings and meat by-products business, and specialty products businesses. The Fuel Ingredients segment consists of the biofuel business and the bioenergy business. The company was founded in 1882 and is headquartered in Irving, TX.