Alto Ingredients, Inc. is a producer and marketer of specialty alcohols and essential ingredients in the United States. The Company operates through three segments: Marketing and distribution, which includes marketing and merchant trading for its produced alcohols and essential ingredients on an aggregated basis, and third party fuel-grade ethanol; Pekin production, which includes the production and sale of alcohols and essential ingredients produced at its Pekin, Illinois campus, or Pekin Campus, and Other production, which includes the production and sale of renewable fuel and essential ingredients produced at all of its other production facilities on an aggregated basis. Its products for essential ingredients markets include yeast, corn gluten and distillers grains used in commercial animal feed and pet foods. Its renewable fuels products include fuel-grade ethanol and distillers corn oil used as a feedstock for renewable diesel fuel. It operates five alcohol production facilities.