Alto Ingredients, Inc. produces, distributes, and markets specialty alcohols, renewable fuel, and essential ingredients in the United States. The company operates in three segments: Marketing and Distribution, Pekin Campus Production, and Western Production. It offers specialty alcohols used in mouthwash, cosmetics, pharmaceuticals, hand sanitizers, disinfectants, and cleaners for health, home, and beauty markets; grain neutral spirits used in alcoholic beverages and vinegar, as well as corn germ used in corn oils in the food and beverage markets; alcohols and other products for paint applications and fertilizers in the industrial and agriculture markets; and essential ingredients, including dried yeast, corn protein meal, corn protein feed, corn germ, distillers grains, and liquid feed for commercial animal feed and pet food applications, as well as yeast and gas liquid CO2 for human consumption. The company also provides fuel-grade ethanol used as transportation fuel additives and distillers corn oil used as a renewable diesel and biodiesel feedstock, as well as fuel-grade ethanol produced by third parties. In addition, it offers transportation, storage, and delivery services through third-party service providers. Further, the company operates alcohol production facilities. It sells ethanol to integrated oil companies and gasoline marketers; essential ingredient feed products to dairies and feedlots; and corn oil to poultry, renewable diesel, and biodiesel customers. The company was formerly known as Pacific Ethanol, Inc. and changed its name to Alto Ingredients, Inc. in January 2021. Alto Ingredients, Inc. was founded in 2003 and is headquartered in Pekin, Illinois.