Green Plains Inc

Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors

Green Plains Inc.:

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheets of Green Plains Inc. and subsidiaries (the Company) as of December 31, 2024 and 2023, the related consolidated statements of operations, comprehensive loss, stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2024, and the related notes (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2024 and 2023, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2024, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial reporting as of December 31, 2024, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report dated February 7, 2025 expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of a critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Fair value of forward contracts

As discussed in Note 2 to the consolidated financial statements, the Company records forward contracts at fair value unless the contract qualifies for and the Company elects normal purchase or sale exceptions. The Company estimates a fair value based on exchange-quoted prices, adjusted as appropriate for regional location basis values, which represent differences in local markets including transportation as well as quality or grade differences. Basis values are generally determined using inputs from broker quotations or other market transactions. As of December 31, 2024, the recorded balances of the Company’s derivative assets and liabilities associated with forward contracts were $10.2 million and $4.8 million, respectively, and are classified as Level 2 assets and liabilities within Notes 5 and 10.

We identified the assessment of the valuation of forward contracts as a critical audit matter. Specifically, evaluating the valuation of forward contracts, which included assumptions related to exchange-quoted prices, and adjustments for regional location basis values, involved complex auditor judgment due to the subjectivity involved in determining the fair value.

The following are the primary procedures we performed to address this critical audit matter. We evaluated the design and tested the operating effectiveness of certain internal controls related to the valuation of forward contracts. To assess the valuation of forward contracts, for a sample of contracts, we tested the Company’s exchange-quoted prices by comparing the amounts used to observable market transactions and evaluated the Company’s adjustments for regional location basis values by comparing inputs used by the Company to third-party information, including broker quotations or other market transactions.

/s/ KPMG LLP

We have served as the Company’s auditor since 2009.

Omaha, Nebraska

February 7, 2025