FUELCELL ENERGY INC New Standards Disclosure

Recently Adopted Accounting Guidance

In November 2023, the Financial Accounting Standards Board (“FASB”) issued guidance to improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. In addition, the guidance enhances interim disclosure requirements, clarifies circumstances in which an entity can disclose multiple segment measures of profit or loss, provides new segment disclosure requirements for entities with a single reportable segment and contains other disclosure requirements. The purpose of the guidance is to enable investors to better understand an entity’s overall performance and assess potential future cash flows. The guidance is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. The Company adopted the guidance during the year ended October 31, 2025. See Part II, Item 8, Note 15 —Segment Information for further detail.

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Recent Accounting Guidance Not Yet Effective

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In December 2023, the FASB issued guidance to enhance income tax disclosures by providing information to better assess how an entity’s operations, related tax risks, tax planning and operational opportunities affect its tax rate and prospects for future cash flows. Additional disclosures will be required to the annual effective tax rate reconciliation including specific categories and further disaggregated reconciling items that meet the quantitative threshold. Additionally, disclosures will be required relating to income tax expense and payments made to federal, state, local and foreign jurisdictions. This guidance is effective for fiscal years and interim periods beginning after December 15, 2024. We are currently evaluating the impact that the new guidance will have on our consolidated financial statements.

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In November 2024, the FASB issued new guidance which requires enhanced disclosure of specified categories of expenses included in certain expense captions presented on the face of the income statement. This guidance will be effective for fiscal years beginning after December 15, 2026 and for interim periods beginning after December 15, 2027. The Company is currently evaluating the new guidance to determine its adoption approach and the impact on the presentation and disclosures of its consolidated statement of operations and comprehensive loss. The Company anticipates its processes will be enhanced to address the disaggregation and disclosure requirements, though it does not expect adoption to impact its overall results from operations.