Gevo, Inc. New Standards Disclosure

Recently Issued, Not Yet Adopted Accounting Pronouncements

Income Statement Disclosures. In November 2024, the FASB issued ASU No. 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40) ("ASU 2024-03"). ASU 2024-03 will require companies to disaggregate, within the notes to the financial statements, certain expenses presented on the face of the financial statements to enhance transparency and help investors better understand an entity's performance. The amendment will specifically require that an entity disclose the amounts related to purchases of inventory, employee compensation, depreciation and intangible asset amortization. Entities will also be required to provide a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively, disclose the total amount of selling expenses and, in annual reporting periods, provide a definition of what constitutes selling expenses. The amendments in ASU 2024-03 are effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027, with early adoption permitted. The Company is currently evaluating the impact of the adoption of ASU 2024-03 on the Company’s financial statement disclosures.

Internal Use Software. In September 2025, the FASB issued ASU No. 2025-06, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software ("ASU 2025-06"). ASU 2025-06 amends certain aspects of the accounting and disclosure of software costs. ASU 2025-06, which can be applied prospectively, retrospectively, or with a modified transition approach, is effective for annual reporting period beginning after December 15, 2027 and interim periods within those annual reporting

periods. Early adoption is permitted. The Company is currently evaluating the impact that the adoption of this standard will have on its consolidated financial statements and disclosures.

Recently Adopted Accounting Pronouncements

Income Taxes. In December 2023, the FASB issued ASU 2023-09, "Income Taxes (Topic 740): Improvements to Income Tax Disclosures". ASU 2023-09 is intended to enhance the transparency and decision usefulness of income tax disclosures. The amendments in ASU 2023-09 address investor requests for enhanced income tax information primarily through changes to the rate reconciliation and income taxes paid information. The Company adopted ASU 2023-09 retrospectively in the fourth quarter of 2025. We modified the disclosures related to our rate reconciliation and the details of our cash taxes paid included in Note 20, Income taxes.