Darling Ingredients, Inc. engages in the development and production of natural ingredients from edible and inedible bio-nutrients. It operates through the following segments: Feed Ingredients, Food Ingredients, and Fuel Ingredients. The Feed Ingredients segment includes ingredients such as fats and proteins used cooking oil, trap grease and food residuals collection, the Rothsay ingredients, and specialty products. The Food Ingredients segment consists of gelatin, natural casings and meat by-products, and specialty products activities. The Fuel Ingredients segment includes the bioenergy business. The company was founded in 1882 and is headquartered in Irving, TX.