Gevo, Inc. Revenue Disclosure

6. Revenues from Contracts with Customers and Other Revenue

Ethanol and Related Products

The Company recognizes revenue from sales of ethanol and co-products at the point in time when the performance obligations in the Company's contracts with customers are met, which is when the customer obtains control of such products and typically occurs upon shipment (depending on the terms of the underlying contracts). Revenue is measured as the amount of consideration expected to be received in exchange for transferring goods or providing services. Pricing is based on either fixed terms or index-based formulas as specified in the contract. Pricing under index-based contracts is tied to observable market indices and reflects prevailing market prices at the time of delivery. In some instances, the Company enters into contracts with customers that contain multiple performance obligations to deliver specified volumes of co-products over a contractual period of less than 12 months. In such instances, the Company allocates the transaction price to each performance obligation identified in the contract based on relative standalone selling prices and recognizes the related revenue when control of each individual product is transferred to the customer in satisfaction of the corresponding performance obligation.

RNG Revenue

The Company’s RNG revenues relate to the sale of RNG produced at the NW Iowa RNG facility under long-term contracts with customers. Revenue is recognized at a point in time when the Company transfers the product to its customer. The customer obtains control of the product upon RNG delivery into a gas pipeline system. The Company generally has multiple performance obligations in our arrangements with customers. The Company’s performance obligation related to the sales of RNG are satisfied at a point in time upon delivery to the customer. Revenue is measured as the amount of consideration the Company expects to receive in exchange for transferring its products. There is no variable consideration present in the Company’s performance obligations. Consideration for each transaction is based upon quoted market prices at the time of delivery. All material contracts have payment terms of between one to three months and there are no return or refund rights.

Environmental Attribute Revenue

The Company’s environmental attribute revenue represents the sale of RNG related environmental attributes produced at the NW Iowa RNG facility and the generation of CORCs at GevoND. The title and control for the environmental attributes are transferred to the customer subsequent to the issuance of such attributes by the relevant regulatory agency. The Company generally has multiple performance obligations in our arrangements with customers. The Company’s performance obligations related to the sales of environmental attributes are satisfied at a point in time upon delivery to the customer. Revenue is measured as the amount of consideration the Company expects to receive in exchange for transferring the environmental attributes. There is no variable consideration present in the Company’s performance obligations. Consideration for each transaction is based upon either quoted market prices at the time of delivery or fixed prices per the contract terms. All material contracts have payment terms of between one to three months and there are no return or refund rights.

Hydrocarbon Revenue

The Company’s hydrocarbon revenue represents sales of renewable, low-carbon intensity blendstocks for motorsports and isooctane isooctane The sales were on a free-on-board shipping point basis (recognized at a point in time), were independent transactions, did not provide post-sale support or promises to deliver future goods, and were single performance obligations.

Other

The Company’s other revenue represents licensing and development revenue and software services revenue. The Company’s licensing revenue is related to a joint development agreement with LG Chem, Ltd. ("LG Chem") to develop bio-propylene for renewable chemicals using Gevo’s Ethanol-to-Olefins ("ETO") technology. As the contractually promised intellectual properties (“IP”) are not individually distinct, the Company combined each individual IP noted in the contract into a bundle of IP (“IP Rights”) that is distinct and accounted for all of the IP Rights promised in the contract as a single performance obligation. The IP Rights granted were “functional IP rights” that have significant standalone functionality. The Company’s subsequent activities do not substantively change that functionality and do not significantly affect the utility of the IP to which the licensee has rights. The Company has no further obligation with respect to the grant of IP Rights, including no expressed or implied obligation to maintain or upgrade the technology, or provide future support or services. The earnings process is complete when the licensee obtains control of the IP and revenue is recognized upon the achievement of certain project milestones, when collectability is probable and all other revenue recognition criteria have been met. The Company’s software and services revenue represents annual support fees and services for customers of Verity and Cultivate AI.

The following tables display the Company’s revenue by major source based on product type (in thousands):

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Contract Assets and Trade Receivables. As of December 31, 2025, and 2024, there were no contract assets or liabilities as all customer amounts owed to the Company are unconditional and the Company does not receive payment in advance for its products. Accordingly, amounts owed by customers are included in “Trade accounts receivable, net” on the Company’s Consolidated Balance Sheets. In addition, due to the nature of the Company’s contracts, there are no

costs incurred or to be paid in the future that qualify for asset recognition as a cost to fulfill or obtain a contract. No allowance for credit losses was recorded for each of the years ended December 31, 2025, and 2024.