Gevo

Gevo uses engineered yeast biocatalysts to ferment corn starch into isobutanol, then dehydrates the isobutanol into isobutylene, which is oligomerized into hydrocarbon fuels. The resulting alcohol-to-jet synthetic paraffinic kerosene (ATJ-SPK) is chemically identical to petroleum-derived jet fuel. The firm also co-produces ethanol and animal feed co-products during fermentation.

Gevo generates revenue from the sale of renewable isobutanol, ethanol, and associated distillers-grain co-products at its Luverne, Minnesota facility. It also earns licensing fees and engineering-services revenue from third-party producers who deploy its technology under contract. The company receives environmental attribute payments through California's Low Carbon Fuel Standard and the federal Renewable Fuel Standard.

Gevo has publicly disclosed long-term fuel-sales agreements with Delta Air Lines, American Airlines, Japan Airlines, Finnair, and global commodities trader Trafigura. These contracts are structured as take-or-pay offtake agreements linked to production milestones at the Net-Zero 1 facility, giving Gevo a contracted revenue base before the plant begins commercial operations.

The Net-Zero 1 facility in Lake Preston, South Dakota, is in late-stage development. In October 2024 it received a conditional commitment for a $950 million loan guarantee from the U.S. Department of Energy's Loan Programs Office. Full financial close and commencement of construction are contingent on final engineering, equity financing syndication, and satisfaction of the DOE's technical and financial conditions precedent.

Gevo operates as both. It owns and operates the Luverne biorefinery in Minnesota and is developing the wholly owned Net-Zero 1 facility in South Dakota. The firm also licenses its isobutanol and alcohol-to-jet technology to third parties, including a joint venture with LG Chem in South Korea and engineering agreements with Praj Industries in India.

Verity is Gevo's wholly owned carbon-accounting unit, acquired in 2017. It provides field-level greenhouse gas emissions tracking using satellite imagery and on-farm data collection. Verity quantifies the full lifecycle carbon intensity of Gevo's feedstock supply chain, enabling differentiated carbon scores for its sustainable aviation fuel under programs such as CORSIA and the Inflation Reduction Act's blenders tax credit.

Gevo's business model depends heavily on federal and state renewable-fuel incentive programs, including the Renewable Fuel Standard, California's Low Carbon Fuel Standard, and the SAF blenders tax credit established under the Inflation Reduction Act. Changes to any of these programs would directly affect the price Gevo receives per gallon of fuel and the value of the environmental attributes it generates.