Alto Ingredients, Inc. produces and markets low-carbon renewable fuels and alcohol products in the United States. The company operates in two segments, Production and Marketing. It produces and markets ethanol; and co-products, such as wet and dry distillers grains, wet and dry corn gluten feed, condensed distillers solubles, corn gluten meal, corn germ, corn oil, dried yeast, and CO2, as well as markets ethanol produced by third parties. The company also offers ethanol transportation, storage, and delivery services through third-party service providers. It sells ethanol to integrated oil companies and gasoline marketers; distillers grains and other feed co-products to dairies and feedlots; and corn oil to poultry and biodiesel customers. The company owns and operates nine ethanol production facilities, including four plants located in the Western states of California, Oregon, and Idaho; and five plants in the Midwestern states of Illinois and Nebraska. 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 Sacramento, California.