About Aemetis

An integrated approach to advanced renewable fuels.

Founded in 2006 in Cupertino, California, Aemetis is an advanced renewable fuels and biochemicals company that commercializes innovative technologies to replace traditional fossil fuels.

Our Mission

At Aemetis, we generate sustainable and innovative renewable fuel solutions that benefit communities and restore our environment.


Aemetis leads the low-carbon fuels industry by building a circular bioeconomy utilizing agricultural waste to produce advanced renewable fuels that reduce greenhouse gas emissions and improve air quality.​

One Prudent Wisdom

The Aemetis name is derived from the Scottish “Ae,” meaning “one,” and the Greek “Metis” who was the mother of the goddess Athena, meaning “prudent wisdom.”

“One Prudent Wisdom,” refers to the prudence and wisdom of replacing petroleum with renewable fuels.

Executing the Strategic Plan


Aemetis, Inc. established.


Aemetis India subsidiary, Universal Biofuels, begins construction of 50 million gallons per year (MGPY) distilled biodiesel and refined glycerin facility in Kakinada, India.


Aemetis completes construction of 50 MGPY biodiesel facility in Kakinada, India.


Aemetis enters into lease agreement with Cilion for the 65 MGPY ethanol facility in Keyes, CA. Invested $8 million in plant upgrades to optimize production.


Aemetis begins continuous production of fuel ethanol, wet distillers grains, and distillers corn oil at the Keyes facility.


Aemetis acquires Keyes, CA ethanol facility.


Aemetis stock begins trading on the NASDAQ under symbol AMTX.


Aemetis Biogas LLC subsidiary formed to design, build, and operate dairy-based renewable natural gas (RNG) production and distribution assets.


India plant upgraded to process lower-cost feedstocks.


Aemetis partners with Messer Gas to convert more than 150,000 annual tons of CO2 gas from the Keyes ethanol facility into liquified CO2 for food and beverage production.


Aemetis Biogas completes first two dairy digesters and four miles of private pipeline for Phase I of the dairy digester/RNG project. Begins utilizing dairy biogas at Keyes facility to replace petroleum natural gas.


Aemetis signs purchase and EPC agreement with TotalEnergies for an integrated solar microgrid with battery energy storage system to produce 1.9MW of zero carbon intensity electricity at the Keyes ethanol facility.


Aemetis signs agreement to purchase 125-acre former U.S. Army facility in Riverbank, CA to locate sustainable aviation fuel (SAF) and renewable diesel (RD) production.


Aemetis completes construction of dairy biogas-to-RNG gas purification facility; interconnection to PG&E gas pipeline; 5 new dairy digesters; 40 miles of private biogas pipeline; and begins construction of 5 new dairy digesters.


Aemetis assumes site control of Riverbank facility, begins facility infrastructure improvements, completes preliminary engineering and files final permits for SAF and RD production facility.


Aemetis fully commissions Zebrex Dehydration system and achieves 20% reduction in ethanol plant natural gas use.


Within the first 11 years of operations, Aemetis has reduced 12.9 million metric tons of CO2 from the low-carbon ethanol produced vs. gasoline that would have been consumed.* During the last decade, Aemetis has also provided over 8 billion pounds of animal feed (wet distillers grains) and over 100 million pounds of distillers corn oil for biodiesel production.

“Aemetis is focused on producing below zero carbon intensity products, including the production of negative carbon intensity renewable natural gas and renewable fuels. Our projects maximize the value of carbon credits under the California Low Carbon Fuel Standard, the federal Renewable Fuel Standard, and IRS 45Q tax credits while reducing operating costs by using waste materials as feedstock.”

Eric A. McAfee, Founder, Chairman and CEO

Aemetis Leadership