# EDGAR Filing Document

**Accession Number:** 0000886128
**File Stem:** 0001104659-25-122302
**Filing Date:** 2025-12
**Character Count:** 711629
**Document Hash:** 5d0ad6629efdae30c7d930826db85bd4
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-122302.hdr.sgml**: 20251218

**ACCESSION NUMBER**: 0001104659-25-122302

**CONFORMED SUBMISSION TYPE**: 10-K

**PUBLIC DOCUMENT COUNT**: 121

**CONFORMED PERIOD OF REPORT**: 20251031

**FILED AS OF DATE**: 20251218

**DATE AS OF CHANGE**: 20251218

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** FUELCELL ENERGY INC
- **CENTRAL INDEX KEY:** 0000886128
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRICAL INDUSTRIAL APPARATUS [3620]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 060853042
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** 10-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-14204
- **FILM NUMBER:** 251581286

**BUSINESS ADDRESS:**
- **STREET 1:** 3 GREAT PASTURE ROAD
- **CITY:** DANBURY
- **STATE:** CT
- **ZIP:** 06810
- **BUSINESS PHONE:** 2038256000

**MAIL ADDRESS:**
- **STREET 1:** 3 GREAT PASTURE ROAD
- **CITY:** DANBURY
- **STATE:** CT
- **ZIP:** 06810

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ENERGY RESEARCH CORP /NY/
- **DATE OF NAME CHANGE:** 19930328

?xml version='1.0' encoding='ASCII'? FUELCELL ENERGY, INC._October 31, 2025

[**Table of Contents**](#TOC)

------

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**WASHINGTON, D.C. 20549**

**FORM 10-K**

&nbsp;&nbsp;&nbsp;&nbsp;**☒** **ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934** 

**For the fiscal year ended October 31, 2025**

**OR**

**☐** **TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934**

**For the transition period from &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; to**

**Commission file number: 1-14204**

![Graphic](fcel-20251031x10k003.jpg)

**FUELCELL ENERGY, INC.**

**(Exact name of registrant as specified in its charter)**

---

| | |
|:---|:---|
| **Delaware** | **06-0853042** |
| (State or other jurisdiction of | (I.R.S. Employer |
| incorporation or organization) | Identification No.) |
| **3 Great Pasture Road** |  |
| **Danbury, Connecticut** | **06810** |
| (Address of principal executive offices) | (Zip Code) |

---

**Registrant's telephone number, including area code: (203) 825-6000**

Securities registered pursuant to Section 12(b) of the Act:

---

| | |
|:---|:---|
| Title of each class | Name of each exchange on which registered |
| Common Stock, $0.0001 par value per share<br> FCEL | The Nasdaq Stock Market LLC (Nasdaq Global Market) |

---

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ◻ No ☒

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act. Yes ◻ No ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ◻

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ◻

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer ◻ Accelerated filer ☒ Non-accelerated filer ◻ Smaller reporting company ☐ <br> Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ◻

Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant's executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

As of April 30, 2025, the aggregate market value of the registrant's common stock held by non-affiliates of the registrant was $93,079,594 based on the closing sale price of $4.10 as reported on the NASDAQ Global Market.

Indicate the number of shares outstanding of each of the registrant's classes of common stock, as of the latest practicable date.

---

| | |
|:---|:---|
| Class | Outstanding at December 15, 2025 |
| Common Stock, $0.0001 par value per share | 47736734  |

---

**DOCUMENT INCORPORATED BY REFERENCE**

<u>Document</u> <u>Parts Into Which Incorporated</u> <br> Definitive Proxy Statement for the 2026 Annual Meeting of Stockholders Part III

[**Table of Contents**](#TOC)

#### FUELCELL ENERGY, INC.

#### INDEX

---

| | |
|:---|:---|
| <br>**Description** | **Page**<br>**Number** |
| [**Part I**](#PARTI_589565) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 1 Business](#Item1BUSINESS_916190) | 3 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 1A Risk Factors](#ITEM1ARISKFACTORS_58727) | 28 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 1B Unresolved Staff Comments](#Item1BUNRESOLVEDSTAFFCOMMENTS_726691) | 45 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 1C Cybersecurity](#Cybersecurity) | 45 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 2 Properties](#Item2_171032) | 47 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 3 Legal Proceedings](#Item3LEGALPROCEEDINGS_208019) | 47 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 4 Mine Safety Disclosures](#Item4MINESAFETYDISCLOSURES_932135) | 47 |
| [**Part II**](#PARTII_230535) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 5 Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities](#Item5MARKETFORREGISTRANTSCOMMONEQUITYREL) | 48 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 6 Reserved](#Item6SELECTEDFINANCIALDATA_36861) | 50 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 7 Management's Discussion and Analysis of Financial Condition and Results of Operations](#Item7MANAGEMENT_301429) | 51 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 7A Quantitative and Qualitative Disclosures About Market Risk](#Item7AQUANTITATIVEANDQUALITATIVEDISCLOSU) | 76 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 8 Financial Statements and Supplementary Data](#Item8FINANCIALSTATEMENTSANDSUPPLEMENTARY) | 79 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 9 Changes in and Disagreements with Accountants on Accounting and Financial Disclosure](#ITEM9CHANGESINANDDISAGREEMENTS) | 133 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 9A Controls and Procedures](#Item9ACONTROLSANDPROCEDURES_741723) | 133 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 9B Other Information](#Item9BOTHERINFORMATION_280577) | 134 |
| [Item 9C Disclosure Regarding Foreign Jurisdictions that Prevent Inspections](#item9CDISCLOSUREFOREIGNJURISDICTIONS) | 134 |
| [**Part III**](#PARTIII_470505) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 10 Directors, Executive Officers and Corporate Governance](#Item10DIRECTORSEXECUTIVEOFFICERSANDCORPO) | 135 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 11 Executive Compensation](#Item11EXECUTIVECOMPENSATION_186219) | 135 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 12 Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters](#SecurityOwnership) | 135 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 13 Certain Relationships and Related Transactions, and Director Independence](#Item13CERTAINRELATIONSHIPSANDRELATEDTRAN) | 136 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 14 Principal Accountant Fees and Services](#Item14PRINCIPALACCOUNTANTFEESANDSERVICES) | 136 |
| [**Part IV**](#PARTIV_961315) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 15 Exhibits and Financial Statement Schedules](#Item15EXHIBITSANDFINANCIALSTATEMENTSCHED) | 137 |
| &nbsp;&nbsp;&nbsp;&nbsp;[Item 16 Form 10-K Summary](#Item16FORM10KSUMMARY_307075) | 146 |
| [**Signatures**](#SIGNATURES_439412) | 147 |

---

[**Table of Contents**](#TOC)

#### PART I
**Item 1.** **BUSINESS**

---

| | |
|:---|:---|
| **Index to Item 1. BUSINESS** | **Page** |
| [Forward-Looking Statement Disclaimer](#ForwardLookingStatementDisclaimer_358470) | 4 |
| [Risk Factor Summary](#RiskFactorSummary_83275) | 6 |
| [General Information](#GeneralInformation) | 8 |
| [Overview](#Overview_156279) | 9 |
| [Our Market Opportunity and Value Proposition](#BM1) | 9 |
| [Our Markets](#OurBusinessStrategy)<br>| 11<br>|
| [Our Business Strategy](#OurBusinessModelandCompetitiveAdvantages)<br>| 11<br>|
| [Recent Restructuring](#RESTR) | 12 |
| [Our Business Model](#ProductPlatformsandApplications_838512) | 12 |
| [Our Product Platform and Applications](#Products_402635) | 13 |
| [Competition](#OurMarkets) | 16 |
| [Our Commitment to Sustainability](#LevelizedCostofEnergy_722236) | 17 |
| [Research and Development](#BM2)<br>| 17<br>|
| [Proprietary Rights and Licensed Technology](#BM3) | 19 |
| [Manufacturing and Service Facilities](#_Manufacturing_and_Service) | 20 |
| [Raw Material Sourcing and Supplier Relationships](#BM4) | 21 |
| [Engineering, Procurement and Construction](#BM5) | 22 |
| [Services and Warranty Agreements](#BM6) | 22 |
| [Government Regulation and Public Policy](#BM7) | 22 |
| [Significant Customers](#_Significant_Customers) | 24 |
| [Human Capital Management and Development](#BM8) | 24 |
| [Available Information](#AvailableInformation) | 25 |

---

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#### Forward-Looking Statement Disclaimer
This Annual Report on Form 10-K contains statements that the Company believes to be "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995 (the "PSLRA"). All statements other than statements of historical fact included in this Form 10-K, including statements regarding the Company's future financial condition, future results of operations, plans, objectives, expectations, future performance, future business operations and business prospects, are forward-looking statements. Words such as "expects," "anticipates," "estimates," "goals," "projects," "intends," "plans," "believes," "predicts," "should," "seeks," "will," "could," "would," "may," "forecast," and similar expressions and variations of such words are intended to identify forward-looking statements and are included, along with this statement, for purposes of complying with the safe harbor provisions of the PSLRA. Forward-looking statements are neither historical facts, nor assurances of future performance. Instead, such statements are based only on our beliefs, expectations, and assumptions regarding the future. As such, the realization of matters expressed in forward-looking statements involves inherent risks and uncertainties. Such statements relate to, among other things, the following:

● the development and commercialization by FuelCell Energy, Inc. and its subsidiaries ("FuelCell Energy," "Company," "we," "us" and "our") of fuel cell technology and products and the market for such products,

● the expected timing of completion of our ongoing projects,

● our business plans and strategies,

● the markets in which we expect to operate,

● expected operating results such as revenue growth and earnings,

● our belief that we have sufficient liquidity to fund our business operations for the next 12 months,

● future funding under Advanced Technologies contracts,

● future financing for projects, including equity and debt investments by investors and commercial bank financing, as well as overall financial market conditions,

● the expected cost competitiveness of our technology,

● our ability to successfully implement our restructuring plans during the expected timeframe and the expected effects and impacts of the Company's restructuring plan, and

● our ability to achieve our sales plans, our plans to increase our annualized production rate in the future in connection with sales growth, market access and market expansion goals, and cost reduction targets.

The forward-looking statements contained in this report are subject to risks and uncertainties, known and unknown, that could cause actual results and future events to differ materially from those set forth in or contemplated by the forward-looking statements, including, without limitation, the risks described under Item 1A. Risk Factors of this report and the following risks and uncertainties:

● general risks associated with product development and manufacturing,

● general economic conditions,

● changes in interest rates, which may impact project financing,

● supply chain disruptions,

● changes in the utility regulatory environment,

● changes in the utility industry and the markets for distributed generation, distributed hydrogen, and fuel cell power plants configured for carbon capture or carbon separation,

● potential volatility of commodity prices that may adversely affect our projects,

● availability of government subsidies and economic incentives for alternative energy technologies,

● risks that our restructuring plans will not result in the intended benefits or savings or will result in unanticipated costs, including but not limited to additional charges and/or higher than expected costs or will yield unintended consequences to our remaining workforce and results of operations,

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● our ability to remain in compliance with U.S. federal and state and foreign government laws and regulations,

● our ability to maintain compliance with the listing rules of The Nasdaq Stock Market ("Nasdaq"),

● rapid technological change,

● competition,

● the risk that our bid awards will not convert to contracts or that our contracts will not convert to revenue,

● market acceptance of our products,

● changes in accounting policies or practices adopted voluntarily or as required by accounting principles generally accepted in the United States ("U.S. GAAP"),

● factors affecting our liquidity position and financial condition,

● government appropriations,

● the ability of the government and third parties to terminate their development contracts at any time,

● the ability of the government to exercise "march-in" rights with respect to certain of our patents,

● our ability to successfully market and sell our products internationally,

● our ability to develop additional commercially viable products in the future,

● our ability to implement our strategy,

● our ability to reduce our levelized cost of energy and deliver on our cost reduction strategy generally,

● our ability to protect our intellectual property,

● litigation and other proceedings,

● the risk that commercialization of our new products will not occur when anticipated or, if it does, that we will not have adequate capacity to satisfy demand,

● our need for and the availability of additional financing,

● our ability to generate positive cash flow from operations,

● our ability to service our long-term debt,

● our ability to increase the output and longevity of our platforms and to meet the performance requirements of our contracts, and

● our ability to expand our customer base and maintain relationships with our largest customers and strategic business allies.

We cannot assure you that:

● we will be able to meet any of our development or commercialization schedules,

● any of our new products or technologies, once developed, will be commercially successful,

● our power plants will be commercially successful,

● we will be able to obtain financing or raise capital to achieve our business plans,

● the government will appropriate the funds anticipated by us under our government contracts,

● the government will not exercise its right to terminate any or all of our government contracts, or

● we will be able to achieve any other result anticipated in any other forward-looking statement contained herein.

The forward-looking statements contained herein speak only as of the date of this report and readers are cautioned not to place undue reliance on these forward-looking statements. Except for ongoing obligations to disclose material information under the federal securities laws, we expressly disclaim any obligation or undertaking to release publicly any updates or

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revisions to any such statement to reflect any change in our expectations or any change in events, conditions or circumstances on which any such statement is based.

#### Risk Factor Summary
**Our business is subject to numerous risks and uncertainties, including those described in Item 1A. Risk Factors of this report. These risks include, but are not limited to the following:**

● We have incurred losses and anticipate continued losses and negative cash flows.

● Our cost reduction strategy for manufacturing may not succeed or may be significantly delayed, which may result in our inability to deliver improved margins.

● We have debt and finance obligations outstanding and may incur additional debt in the future, which may adversely affect our financial condition and future financial results.

● We rely on project financing for our generation operating portfolio, which includes debt and tax equity financing arrangements, to realize the benefits provided by investment tax credits and accelerated tax depreciation. In the event that interest rates rise or there are changes in tax policy, our financial results could be harmed.

● Our plans are dependent on market acceptance of our products, and we currently face and will continue to face significant competition, including from products using other energy sources that may be lower priced or have preferred environmental characteristics.

● Unanticipated increases or decreases in business growth have resulted and may continue to result in adverse consequences to our financial condition and business strategy.

● Our workforce reduction may cause unintended consequences and our results of operations may be harmed.

● If our intangible assets and long-lived assets (including project assets) become impaired in the future, we may again be required to record a significant charge to operations.

● Our Advanced Technologies contracts are subject to the risk of termination by the contracting party and we may not realize the full amounts allocated under some contracts due to the lack of Congressional appropriations or early termination.

● Utility companies may resist the adoption of distributed generation and could impose customer fees or interconnection requirements on our customers that could make our products less desirable.

● We depend on third party suppliers for the development and timely supply of key raw materials and components for our products.

● An increase in energy costs may materially adversely affect our business, financial condition, and results of operations.

● Failure to meet Environmental, Social, and Governance ("ESG") expectations or standards or to achieve our ESG goals could adversely affect our business, results of operations, financial condition, and stock price.

● We derive significant revenue from contracts awarded through competitive bidding processes involving substantial costs and risks. Our contracted projects may not convert to revenue, and our project awards and sales pipeline may not convert to contracts, which may have a material adverse effect on our revenue and cash flows.

● We have signed product sales contracts, engineering, procurement and construction contracts ("EPCs"), power purchase agreements ("PPAs") and long-term service agreements with customers subject to contractual, technology, operating, commodity (i.e., natural gas) and fuel pricing risks, as well as market conditions that may affect our operating results.

● We extend product warranties for our products, which products are complex and could contain defects and may not operate at expected performance levels, which could impact sales and market adoption of our products, affect our operating results or result in claims against us.

● Our development timeline for bringing our solid oxide electrolysis technology to market has shifted as a result of delays in adoption of clean energy technologies generally and implementation of our recent global

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restructuring actions, which have re-focused our business on our core carbonate technologies. In addition our timeline for bringing our carbon capture technology to market will be subject to conditions outside of our control.

● Our products use inherently dangerous, flammable fuels, operate at high temperatures and use corrosive carbonate material, each of which could subject our business to product liability claims.

● Our reliance on information technology continues to grow, and disruptions, failures, or security breaches could materially impact both our operations and the operations of our power plant platforms. Furthermore, the rise in information technology security threats and increasingly sophisticated cybercrime presents ongoing risks to our systems, networks, products, and services.

● We may be affected by environmental and other governmental regulation.

● A negative government audit could result in an adverse adjustment of our revenue and costs and could result in civil and criminal penalties.

● Exports of certain of our products are subject to various export control regulations and may require a license or permission from the U.S. Department of State, the U.S. Department of Energy or other agencies.

● We will need to raise additional capital, and such capital may not be available on acceptable terms, if at all. If we do raise additional capital utilizing equity, existing stockholders will suffer dilution. If we do not raise additional capital, our business could fail or be materially and adversely affected.

● We depend on our intellectual property, and our failure to protect that intellectual property could adversely affect our future growth and success. Additionally, the U.S. government has certain rights relating to our intellectual property, including the right to restrict or take title to certain patents.

● Our stock price has been and could remain volatile. Financial markets worldwide have experienced heightened volatility and instability which may have a material adverse impact on our Company, our customers and our suppliers.

● Our failure to meet the continued listing standards of The Nasdaq Global Market could result in a delisting of our common stock, which could limit investors' ability to make transactions in our common stock and subject us to additional trading restrictions.

● Provisions of Delaware and Connecticut law and of our certificate of incorporation and by-laws may make a takeover more difficult. Our by-laws provide that the Court of Chancery of the State of Delaware is the exclusive forum for substantially all disputes between us and our stockholders, which could limit our stockholders' ability to obtain a judicial forum deemed favorable by the stockholder for disputes with us or our directors, officers or employees.

● The rights of our 5% Series B Cumulative Convertible Perpetual Preferred Stock ("Series B Preferred Stock") could negatively impact our cash flows and dilute the ownership interest of our common stockholders. The Series B Preferred Stock ranks senior to our common stock with respect to payments upon liquidation, dividends, and distributions.

● Litigation could expose us to significant costs and adversely affect our business, financial condition, and results of operations.

● Weakness in the economy and other conditions affecting the financial stability of our customers could negatively impact future sales of our products and our results of operations.

● Our results of operations could be adversely affected by economic and political conditions globally and the effects of these conditions on our customers' businesses and levels of business activity.

● Our future success will depend on our ability to attract and retain qualified management, technical and other personnel.

● We are subject to risks inherent in international operations.

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#### General Information
Information contained in this report concerning the electric power supply industry and the distributed generation market, the distributed hydrogen market, the energy storage market and the carbon capture market, our general expectations concerning these industries and markets, and our position within these industries and markets are based on market research, industry publications, other publicly available information and assumptions made by us based on this information and our knowledge of these industries and markets, which we believe to be reasonable. Although we believe that the market research, industry publications and other publicly available information, including the sources that we utilized in preparing certain portions of this report, are reliable, they have not been independently verified by us and, accordingly, we cannot assure you that such information is accurate in all material respects. Our estimates, particularly as they relate to our general expectations concerning the electric power supply industry and the distributed generation market, the distributed hydrogen market, the energy storage market and the carbon capture market, involve risks and uncertainties and are subject to change based on various factors, including those discussed under the section of this report entitled "Item 1A. Risk Factors."

Unless otherwise specifically noted herein, all degrees refer to Fahrenheit ("F"); kilowatt ("kW") and megawatt ("MW") numbers used in this report designate nominal or rated capacity of the referenced power plant which is the design rated output of the referenced power plant as of the date of initiation of commercial operations; "efficiency" or "electrical efficiency" means the ratio of the electrical energy generated in the conversion of a fuel to the total energy contained in the fuel (lower heating value, the standard for power plant generation, assumes the water in the product is in vapor form; as opposed to higher heating value, which assumes the water in the product is in liquid form, net of parasitic load); kW means 1,000 watts; MW means 1,000,000 watts; "kilowatt hour" ("kWh") is equal to 1 kW of power supplied to or taken from an electric circuit steadily for one hour; and one British Thermal Unit ("Btu") is equal to the amount of heat necessary to raise one pound of pure water from 59<sup>o</sup>F to 60<sup>o</sup>F at a specified constant pressure.

All dollar amounts are in U.S. dollars unless otherwise noted.

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#### Overview

**We target a range of markets and applications with our products, including utilities and independent power producers, data centers, wastewater treatment, commercial and hospitality, and microgrids, among others. We market our products primarily in the U.S. and Canada, the European Union (the "EU") and the United Kingdom (the "UK"), and priority Asian markets including South Korea, Singapore, Malaysia, and Thailand. We selectively pursue additional opportunities in other regions that align with our strategic priorities. We focus our expansion on markets and regions that value clean distributed generation, have poor grid reliability and/or challenged transmission and distribution lines, and can benefit from the value streams our products provide.** 

**In addition to our existing core molten carbonate-based commercial products, we engage strategically in research and development, both company-funded and carried out under grants from and commercial agreements with private companies and various government agencies through our Advanced Technologies programs. Our Advanced Technologies programs are currently focused on continued development and advancement of our core carbonate fuel cell technology as well as commercialization of our solid oxide electrolysis technology for distributed hydrogen. We focus on generating revenue from our core recurring and non-recurring revenue sources, while working to identify the next trends in clean energy we believe we can commercialize, take to market, and grow into future revenue streams.**

**Our Market Opportunity and Value Proposition**

We believe that we are positioned to capture significant growth opportunities by providing scalable, clean power and carbon capture solutions to meet the needs of data centers for reliability and sustainability, utilities seeking to alleviate grid constraints, industrial and manufacturing companies requiring on-site combined heat and power ("CHP"), and large commercial facilities demanding resiliency and emissions reduction. We believe there is a large and expanding market for our commercially available molten carbonate-based platform, supported by strong policy tailwinds in the U.S. and abroad. For example, in the United States, the recently adopted One Big Beautiful Bill Act ("OBBBA") reinstated the 30% Investment Tax Credit for fuel cells through at least 2032 and provided for the continuation and expansion of Section 45Q for carbon capture and utilization ($85/ton for utilization and capture), creating what we believe are clear economic incentives for the adoption of fuel cells. In addition, South Korea's Clean Hydrogen Portfolio Standard program provides long-term purchase contracts and direct market incentives for clean energy power generators, creating what we view as a stable and attractive market for fuel cell technologies like those offered by FuelCell Energy. These programs—along with state, local, and other international initiatives—are accelerating the commercialization of clean distributed generation and carbon capture technologies. We believe that our carbonate fuel cell products are uniquely positioned to benefit from these policies and related market opportunities.

Our carbonate fuel cell products deliver reliable, clean baseload power, avoid harmful emissions such as sulfur oxide ("SOx"), nitrogen oxide ("NOx"), and particulate matter, produce hydrogen and high-grade heat, and isolate and remove CO₂ from exhaust streams. These capabilities align directly with long-term structural demand for decarbonization and energy resiliency, which we expect will expand the addressable market for our products and create durable growth opportunities. Fuel flexibility is another critical advantage of our carbonate fuel cell platform, providing the ability to run on biofuels, renewable natural gas, or hydrogen-hydrocarbon blends.

According to the International Energy Agency, global electricity demand from data centers is projected to more than double by 2030 to approximately 945 terawatt-hours. The primary driver: the exponential rise of AI-optimized workloads.

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This macro trend is creating a number of challenges that we believe can be addressed with solutions such as our carbonate fuel cell platform:

*Demand surge from AI/Cloud:* The exponential rise of AI and cloud workloads is driving electricity demand far beyond what current transmission infrastructure can deliver, with hyperscalers needing new power as quickly as possible. Our ability to rapidly deploy modular, high-density fuel cell systems could enable data centers to bring multi-megawatt capacity online in months (once all permits are secured), compared to 3–7 years for traditional utility or gas turbine solutions.

*Scarcity of powered land:* Limited availability of building sites for data centers with pre-positioned power infrastructure means the best parcels are often bid up, leaving developers with constrained options and longer timelines to bring their data centers online. Our modular products are 1.25 MW power blocks (or modules) that can be scaled to meet hundreds of megawatts of demand. This modularity supports phased deployment, rapid expansion, and redundancy, which we believe makes it ideal for data centers, industrial campuses, and utility-scale projects. With a power density of up to 33 MW per acre, our systems can help to maximize output even in space-constrained environments, creating opportunities to unlock new development sites and enabling efficient land use.

*Long utility interconnection timelines:* Securing new high-voltage interconnections or substation builds for traditional power generation can take 5–7 years or more, delaying construction and revenue. Our systems do not require utility interconnection when operating in the off-grid mode and can operate as true power islands, unlocking new sites, or adding power to existing locations. By minimizing reliance on long transmission lines and avoiding grid congestion, our systems can reduce potential points of failure and provide resilient on-demand power.

*Gas turbine queues:* Large-scale behind-the-meter generation faces 3–5-year procurement and construction timelines due to equipment shortages and supply chain bottlenecks. We offer a competitive alternative with comparable or better levelized cost of energy than gas engines and turbines, accelerated revenue capture, and reduced permitting risk.

*Environmental & permitting constraints:* Stringent NOx and SOx emissions caps and local community opposition to combustion-based technologies make traditional gas generation difficult, often stalling projects in non-attainment areas. Our quiet and low emissions profile—with virtually no NOx or SOx, significantly lower CO₂, and unique carbon recovery/capture capability can expedite or even exempt projects from complex air permitting, enabling deployment in challenging districts.

*Reliability concerns:* Unlike solar or wind power, fuel cells provide continuous, reliable power output. Our carbonate fuel cell platform delivers baseload power to critical loads, operating continuously to support mission-critical applications. Our carbonate fuel cell system can increase or decrease output by as much as 20% per minute, providing flexibility to respond to dynamic demand or grid fluctuations. Proven island-mode operation generally provides uninterrupted power even during grid outages, enhancing resiliency and energy security for customers.

*Cost unpredictability:* Volatile energy markets and transmission delays can threaten budgets and timelines, compressing margins and complicating long-term planning. Our on-site generation helps secure more predictable energy costs, reducing exposure to market volatility and transmission risk and supporting more predictable financial outcomes.

Our carbonate fuel cell systems are engineered for seamless integration with a wide range of energy assets, including microgrid controllers, battery energy storage systems, turbines, reciprocating engines, solar arrays, wind farms, and Organic Rankine Cycle systems. This interoperability enables customers to optimize energy management, enhance grid resiliency, and maximize the value of both renewable and conventional resources. By supporting hybrid configurations, our systems can deliver firm, dispatchable power while complementing intermittent renewables and legacy generation assets.

See the section below entitled "Our Markets" for information regarding our existing and target markets.

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**Our Markets**

We target three major market opportunities with our technology—distributed generation; carbon capture, utilization and sequestration; and distributed hydrogen.

●  ***Distributed Generation:*** This includes utilities and independent power producers, data centers, wastewater treatment, and other behind the meter and microgrid applications;

***●***  ***Carbon Capture, Utilization and Sequestration:*** This includes data centers and other industrial applications as well as high CO<sub>2</sub> emitters such as the oil and gas sector; and

●  ***Distributed Hydrogen:*** This includes industrial hydrogen applications like fertilizer, mobility and material handling, port applications, and large-scale wind and solar projects for their ability to produce green hydrogen via electrolysis.

Our core carbonate platform, which is commercially available, supports distributed generation, carbon capture applications, and distributed hydrogen production. In addition, we are developing our solid oxide electrolysis platform, which is intended to provide a second pathway for distributed hydrogen production upon commercialization.

We market our clean energy solutions worldwide, primarily in the U.S. and Canada, the EU and the UK, and priority Asian markets including South Korea (the largest fuel cell market), Singapore, Malaysia, and Thailand. The utilities and independent power producer market has historically been our largest market, with customers that include utilities on the East and West coasts of the United States, such as UIL Holdings Corporation, Inc. (owned by Avangrid, Inc., a wholly owned subsidiary of Iberdrola), the Long Island Power Authority ("LIPA") and Southern California Edison. In Europe, utility customers include E.ON Connecting Energies, one of the largest utilities in the world. In South Korea, we are contracted to operate and maintain a number of large-scale utility deployments, including a 20 MW power plant project for Korea Southern Power Company ("KOSPO"), a 20 MW power plant project for Noeul Green Energy Co., Ltd., and a 58.8 MW power plant project for Gyeonggi Green Energy Co., Ltd.

Our carbonate fuel cell systems are producing power for a variety of industrial, commercial, municipal and government customers, including manufacturing facilities, pharmaceutical processing facilities, universities, healthcare facilities and wastewater treatment facilities. These institutions expect efficient, clean, and continuous power to reduce operating expenses, reduce greenhouse gas emissions and avoid pollutant emissions to meet their sustainability goals, while boosting resiliency and limiting dependence on the distribution grid. CHP applications further support economic and sustainability initiatives by minimizing or avoiding the use of combustion-based boilers for heat. Our patented carbonate fuel cell system is unique in its ability to run on biogas.

**Our Business Strategy**

In 2019, we launched our "Powerhouse" strategy to strengthen our business, maximize operational efficiencies, and position us for future growth. As we executed against the original three strategic pillars, we made meaningful progress, and in fiscal year 2022 we updated the pillars to "Grow, Scale, and Innovate." In November 2024, following our Board of Directors' approval of a restructuring and revised strategic plan, we refined aspects of the strategy and updated the pillars to "Focus, Scale, and Innovate." Most recently, in connection with additional restructuring actions undertaken in June 2025, we further refined elements of our strategy while maintaining the strategic pillars of "Focus, Scale, and Innovate."

***Focus — Focusing on our core carbonate platform***

● Capitalize on our 22-year track record of delivering baseload power, with the goal of meeting large scale data center opportunities and continuing to fulfill industrial opportunities.

● Drive differentiated product and cost improvements with respect to our core carbonate platform, leveraging the platform's multiple operating modes, including baseload power, load following, carbon capture, and thermal use for absorption chilling or heating.

● Expand the use of our core carbonate platform in global markets that are aligned with strong product fit.

***Scale — Growing revenue and expanding product and manufacturing capabilities based on market demand***

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● Make targeted investments in production capacity expansion to support expected demand.

● Leverage the policy benefits provided by the OBBBA in the U.S., which includes a 30% Investment Tax Credit for fuel cell projects (which is expected to be available through at least 2032), and a credit of $85 per ton for carbon recovery and carbon capture used for sequestration or utilization, to make our product offerings more attractive to potential customers.

● Partner with best-in-class companies to integrate our solutions into emerging data center distributed generation solutions to deliver enhanced value.

***Innovate — Innovating for the future***

● Leverage the flexibility of our core carbonate platform, with the goal of addressing diverse data center needs – where cloud growth, energy reliability, and global sustainability mandates intersect.

● Utilize carbon capture product innovations (currently under development) to meet expected market demand.

● Deepen and expand blue-chip partnerships to accelerate technology commercialization and large-scale deployment.

**Recent Restructuring**

In November 2024 and again in June 2025, we announced global restructuring of our operations aimed to reduce operating costs, realign resources toward advancing the Company's core carbonate technologies, and protect the Company's competitive position amid slower-than-expected market investments in clean energy. These restructuring plans included workforce reductions as well as reduced spending on product development, overhead and other costs, recalibration of the Torrington manufacturing facility production schedule to align with contracted demand, the deferral of certain compensation and benefit obligations, the cessation of the majority of development efforts with respect to our solid oxide technology, and other targeted cost-saving measures.

Prior to the implementation of the restructuring actions announced in November 2024 and June 2025, our manufacturing and research and development facility in Calgary, Alberta, Canada focused on the engineering and development of our solid oxide power generation and electrolysis technologies. This facility also housed our solid oxide power generation and electrolysis stack research and development effort and includes equipment for the manufacturing of solid oxide cells and stacks, including advanced manufacturing capabilities. Beginning in fiscal year 2022 and continuing in fiscal years 2023 and 2024, we made investments in the Calgary facility, including by increasing the total leased facility space and ordering long lead process equipment, with the goal of increasing solid oxide production capacity. However, our global restructuring plans deferred and cancelled certain previously planned capital and project expenditures related to solid oxide manufacturing in our facility in Calgary, Canada. As a result of these restructuring plans, we have deferred the capital spending required to complete the Calgary expansion and do not currently expect to complete this project. In addition, as part of these restructuring plans, we ceased development of the solid oxide power generation platform and began focusing on demonstrating the capabilities of our solid oxide electrolysis platform, for which we expect to seek partnerships for product commercialization and manufacturing.

**Our Business Model** 

Our business model is based on multiple revenue streams, targeting both recurring revenue and non-recurring revenue. Recurring revenue is delivered through recurring electricity, capacity, and renewable energy credit sales under power purchase agreements ("PPAs") and tariffs for projects we retain in our generation portfolio, as well as service revenue, mainly through long-term service agreements. Non-recurring revenue is generated through product and component sales, as well as from public and private industry research contracts related to the development of our Advanced Technologies.

Our primary revenue streams (as reported in our Consolidated Statements of Operations and Comprehensive Loss) consist of:

●  ***Product*** : Customers can purchase our fuel cell systems directly or through intermediaries such as infrastructure funds that sell to the end customer under a PPA.

●  ***Service:*** In both PPAs and direct sales agreements, a service agreement is incorporated into the PPA or sales agreement to support maintenance of the operating system over its lifetime. These service agreements ensure predictable, recurring revenue for the life of the operating system.

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●  ***Generation:*** Where it makes strategic sense, we retain project ownership to capture the full benefit of long-term cash flows by selling power and other attributes under PPAs.

●  ***Advanced Technologies:*** This includes revenue from customer-sponsored and government-sponsored Advanced Technologies projects.

We are a complete solutions provider for our systems, controlling the design, development, sale, manufacturing, installation, operation, and maintenance of our patented fuel cell technology under long-term power purchase and service agreements. When utilizing long-term PPAs, the end-user of the power or utility hosts the installation and only pays for power as it is delivered, avoiding up-front capital investment. We also develop projects and sell equipment directly to customers, providing a complete solution of engineering, installing, and servicing the fuel cell power plant under an engineering, procurement, and construction agreement ("EPC") and a long-term maintenance and service agreement. (See the sections below entitled "Engineering, Procurement and Construction" and "Service and Warranty Agreements" for more information.) We maintain the long-term recurring service obligation and associated revenues coterminously with the operating life of such projects.

Customers and developers generally have the option to either purchase our fuel cell products outright or to enter into a PPA under which the customer or developer (i.e. the end-user of the power) commits to purchase power as it is produced for an extended period of time, typically 10 to 20 years. We may elect to retain ownership of a fuel cell project, or we may elect to sell all or some of the project to a third party. If a project or project asset is sold, revenue from the sale is recognized and reflected in the Product revenues line item of our Consolidated Statements of Operations and Comprehensive Loss, and we recognize revenue separately for the long-term maintenance and service agreement with respect to the project over the term of that agreement. If a project is retained, we recognize electricity, capacity and/or renewable energy credits monthly over the term of the PPA. We report the financial performance of retained projects as Generation revenues and Cost of generation revenues in our Consolidated Statements of Operations and Comprehensive Loss.

We typically operate and maintain our fuel cell projects over their useful life regardless of the ownership structure. For projects not operating under a PPA, customers enter into long-term service agreements with us, some of which have terms of up to 20 years. We report the revenue earned under long-term maintenance and service agreements as Service agreements revenues in our Consolidated Statements of Operations and Comprehensive Loss.

Given our long history of developing, investing in and deploying our fuel cell solutions, we believe we have distinct competitive advantages that underpin and enable our strategy, including a strong portfolio of products, intellectual property, deep technical expertise, strategic innovation and development relationships, and a track record of operational excellence.

#### Our Product Platforms and Applications
**Our Carbonate Fuel Cell Platform**

Our carbonate fuel cell platform is the cornerstone of our product portfolio. Our products are sold in modular 1.25 MW power blocks (or modules) and can be scaled to meet hundreds of megawatts of demand. The high output of our 1.25 MW power block reduces the total number of fuel cell systems needed for large-scale applications. Our systems are configurable for a range of customer applications—from thermal use to carbon capture.

Our fuel cell systems consist of one or more power blocks supported by mechanical and electrical balance of plant components. The mechanical balance of plant components manage fuel and air preparation. The electrical balance of plant components convert the clean direct current ("DC") power produced by the power blocks into alternative current ("AC") power and deliver it to the grid or to the end-use system consuming the energy.

There are three distinguishing design features of our carbonate fuel cell platform:

● *High temperature operation improves efficiency, enables CHP and offers sustainability benefits:* Carbonate fuel cells operate at high temperatures for optimal efficiency when generating electricity. Because they operate at about 1000°F, their high-grade waste heat can be recovered at around 725°F as hot exhaust, hot water, or steam. Our fuel cell system can achieve electrical efficiency of 50% (25% better than gas turbines), and when configured for CHP, total system efficiency can exceed 80%. The high-temperature operation enables the recovery of exhaust energy for absorption chilling and heating, reducing overall energy costs compared to traditional engines and

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turbines. This efficiency translates into lower fuel consumption, reduced emissions, and improved economics for customers seeking sustainable, cost-effective power solutions.

Thermal applications for cooling and heating: Thermal energy from our fuel cell systems can be used for absorption chilling for space cooling at data centers and other sites. It can also be used for industrial process steam, domestic hot water, space heating, or to support anaerobic digestion at wastewater treatment plants. The large operating size of our power blocks enhances the value of thermal recovery, compared to smaller fuel cell systems.

Sustainability benefits: Operating at high temperatures allows the electrode reactions to proceed efficiently without expensive platinum-type catalysts. Our carbonate fuel cell platform operates at temperatures that are high enough to allow the conversion of methane into hydrogen (called reforming) in the fuel cell stack. This conversion allows the fuel cell stack to generate hydrogen directly from a methane-based fuel source like natural gas or biogas. This combustion-free process emits water, not pollutants, which helps to support customer sustainability goals and contributes to local air quality. Some U.S. states have already classified certain fuel cells as Class I renewable power generation due to their low carbon emissions, negligible criteria pollutants, and high efficiency.

● *Large-scale design optimizes scalability:* The high output of our 1.25 MW power blocks reduces the amount of balance of plant equipment needed in large-scale applications. The repeatable power blocks are installed in rows, allowing sites to incrementally add output and redundancy over time.

● *Carbon capture capability for use or sequestration:* Our carbonate fuel cell technology has the unique capability to capture CO <sub>2 </sub> from fuel cell exhaust. This feature can be installed during the initial installation of the carbonate fuel cell system or in the future. The captured CO <sub>2</sub> can be used for industrial needs or can be sequestered.

Additionally, our commercially available Tri-gen system, which is based on our core carbonate fuel cell platform, delivers three value streams from a single system—power, hydrogen, and water.

**Applications of Our Carbonate Fuel Cell Platform**

***Carbonate-Based Distributed Generation*** 

We market the systems built on our carbonate fuel cell products in different configurations for different applications to meet demanding power needs across industries, including:

● *Grid Support:* Our scalable systems can be combined into multi-megawatt installations on a compact footprint to achieve up to 33 MW per acre of power density. This gives utilities a way to quickly add firm, distributed generation where it is needed to strengthen grid resiliency and eliminate grid congestion.

● *Microgrid / Time-to-Power Applications:* Our systems can stand alone or integrate with other resources to form microgrids that can provide continuous prime power. In areas facing grid outages or where grid access is limited, our systems can deliver a seamless and immediate power solution when grid power is unavailable.

These configurations and applications can be used to address the demanding needs of data centers for continuous operation, manufacturers and hospitals for resilient on-site energy, universities for campus-wide energy management, utilities for grid support, wastewater treatment facilities for biogas utilization and emissions reduction and hydrogen fueling stations for sustainable mobility.

***Carbon Capture, Recovery and Utilization***

Our advanced platform integrates carbon capture, recovery, and utilization technologies to significantly reduce emissions and enable cleaner power generation across diverse applications:

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●  ***Carbon Capture –*** Power generation and industrial applications are the source of two-thirds of the world's carbon emissions. The cost effective and efficient capture of CO <sub>2</sub> from power generation and industrial applications globally represents a large market because it could enable clean use of all available hydrocarbon fuels. Our carbon capture system is engineered to separate and concentrate CO <sub>2 </sub> from the flue gases of natural gas, biomass or coal-fired power plants or other industrial facilities as a side reaction that extracts and purifies the CO <sub>2</sub> in the flue gas during the power generation process and destroys approximately 70% of NOx emissions during the power generation process.

●  ***Carbon Recovery and Utilization*** – In addition to the ability to capture CO <sub>2 </sub> from an external source, we are adding the capability to our carbonate fuel cell platform to extract and purify CO <sub>2</sub> produced by the fuel cell power generation process. Our carbon separation technology allows CO <sub>2</sub> to be easily extracted and purified to the appropriate level for utilization or sequestration, significantly reducing the carbon footprint of the generated power from our fuel cell systems. This requires a simple modification to the fuel cell module that can be incorporated into new modules as well as retrofitted for existing modules during stack replacements. Over time, as we replace fuel cell stacks in our deployed modules, we intend to integrate our carbon separation technology, making every platform receiving a module upgrade carbon separation ready.

***Hydrogen Generation***

Our carbonate-based Tri-gen system produces zero-carbon hydrogen. Our first Tri-gen system is being used by Toyota Motor North America at their Port of Long Beach operations center. While today's market pace for clean hydrogen adoption is gradual, we believe that our Tri-gen system demonstrates the real-world potential of fuel cell innovation and positions us to capture growth as hydrogen demand accelerates.

#### Solid Oxide Electrolysis Platform
Our solid oxide electrolysis technology (which is under development) may provide an additional route to low- or zero-carbon hydrogen.

An electrolyzer is a system that performs electrolysis, which is the process of using electricity to split water molecules (H<sub>2</sub>O) into hydrogen (H<sub>2</sub>) and oxygen (O<sub>2</sub>). The largest factor in the cost of electrolysis-produced hydrogen is the cost of electricity. Our solid oxide electrolysis platform is designed to address cost, scale, and efficiency gaps that exist with other electrolysis technologies. Key differentiators of our solid oxide electrolysis platform include:

● Our solid oxide electrolysis platform consumes less energy per kilogram of hydrogen produced compared to proton exchange membrane ("PEM") and alkaline systems;

● We have an intellectual property portfolio of more than 55 patents covering our solid oxide cell, stack, and system technology; and

● We have full in-house manufacturing control with respect to our solid oxide electrolysis platform, from raw material formulation to final assembly.

Our solid oxide electrolysis platform operates at high temperatures, enabling high efficiency of up to 34 kWh/kg at the stack level and up to 40–45 kWh/kg at the system level. When paired with industrial or nuclear heat, efficiency improves even further, reducing the levelized cost of hydrogen by up to 10% compared to PEM systems. Hydrogen purity exceeds 99.85%, which makes it suitable for demanding industrial applications.

Demonstration of our solid oxide electrolysis platform is being undertaken at Idaho National Laboratory ("INL") in conjunction with the U.S. Department of Energy and is intended as a steppingstone for a system level field demonstration of our solid oxide electrolysis platform. The demonstration unit was shipped to and arrived at INL in January 2025 and is fully installed. It is currently being tested by the Company and INL. We expect this solid oxide electrolysis platform will demonstrate its capabilities in the hydrogen generation market and are seeking partners to advance the commercialization and deployment of this technology. In addition, we are collaborating with Malaysia Marine and Heavy Engineering Holdings Berhad (KLSE: MHB) to support a contract awarded to us for a Detailed Feasibility Study ("DFS") of a low-carbon fuel production facility in Malaysia. The purpose of the DFS is to evaluate the production of low-carbon fuel utilizing solid oxide electrolysis technology with carbon dioxide and water as feedstocks.

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We believe that applications for this technology will include centralized large scale hydrogen production from grid-scale renewables or nuclear power, producing green ammonia or methanol, producing synfuels like sustainable aviation fuel and also decarbonizing steel production, refineries, and industrial heating applications. We have adopted a module-centric strategy to allow us to concentrate our resources on developing high-efficiency stacks and are seeking partnerships to further our commercialization efforts. Such a partnership would allow the complexities and expenses of system customization, site design, balance of plant procurement and EPC work to be managed by large-scale project developers. We believe this strategy will have the added benefit of streamlining our manufacturing processes, simplifying our supply chain, and lowering our working capital intensity. Lastly, focusing on our core modular technology and design allows us to dedicate our engineering resources to the advancement of stack and module technology, including both performance and cost optimization.

#### Competition
The market for clean and reliable energy is highly competitive and rapidly evolving, shaped by global energy demand, government incentives, and the accelerating growth of data centers and other critical infrastructure. Customers increasingly require power solutions that deliver reliability, efficiency and scalability, often at a rapid pace. While traditional electric grids supplied by coal, gas, hydro, and nuclear plants remain prevalent, clean energy technologies are now able to compete with the grid and long-distance transmission in terms of levelized cost of electricity.

***Competitive Landscape and Alternatives***

Our solutions face competition from a broad array of technologies, including the electric grid, wind turbines, solar arrays, linear generators, hydro facilities, and a range of hydrogen and fuel cell offerings from both incumbent and emerging competitors. In the distributed generation marketplace, alternatives such as micro-turbines, turbines, and reciprocating gas engines also compete for customer adoption. Product development cycles in this sector are long, and success depends on product quality, efficiency, and robust intellectual property strategies.

***Differentiators of Our Carbonate Fuel Cell Technology***

We believe that our carbonate fuel cell technology addresses challenges in the markets in which we compete by providing the following differentiators:

● **Continuous, Firm Baseload Power:** Unlike intermittent wind and solar systems, which depend on variable weather and require extensive battery storage, our carbonate fuel cell technology provides reliable, continuous power. This makes it ideal for mission-critical applications, overcoming challenges such as grid congestion, land constraints, and complex permitting. Our systems feature compact footprints, rapid deployment, and streamlined regulatory approval.

● **Environmental Performance:** Our fuel cells emit negligible NOx, SOx, and particulate matter, and produce less CO <sub>2</sub> per kWh than less efficient systems. When fueled by biogas, emissions are considered carbon neutral. Baseload operation allows our products to avoid more emissions than wind or solar systems of similar capacity, which operate intermittently.

● **Comparison to Backup Equipment:** Unlike diesel generators, which emit high levels of pollutants and face permitting challenges, our systems deliver clean, quiet, continuous power suitable for urban and sensitive environments.

● **Efficiency vs. Gas Turbines and Engines:** Our carbonate fuel cell systems achieve up to 50% initial electrical efficiency (47% average), outperforming gas turbines (29–38%) and reciprocating engines (38–45%). They also support combined heat and power (CHP) efficiencies up to 80%, offer fuel flexibility, and require less maintenance.

● **Technology Leadership:** Compared to solid oxide and PEM fuel cells, we believe that our carbonate fuel cells demonstrate longer stack life, robust biogas operation, minimal performance derate, and advanced contaminant management. They uniquely enable cost-effective carbon capture, especially for large-scale scenarios.

To maintain and strengthen our competitive position, we continue to invest in research and development, focusing on improving efficiency and cost effectiveness as well as expanding platform capabilities such as developing carbon separation and capture technologies.

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#### Commitment to Sustainability
As a company, we are committed to helping our customers reduce their environmental impact. We are equally committed to reducing our environmental impact, including the reduction of our own carbon footprint on a per unit basis, guided by the same principles of responsibility and innovation that underpin our platforms. As part of this commitment, during fiscal year 2025, we:

● Performed a corporate-level greenhouse gas emissions inventory for 2025;

● Published the 2024 Sustainability Report aligned with international Environmental, Social and Governance ("ESG") standards to provide transparency on our sustainability commitments and progress to all our stakeholders;

● Continued developing a sustainability strategy to prioritize and holistically address our key ESG responsibilities and stakeholders' needs; and

● Continued to prioritize circularity in every aspect of our product life cycle, from design to end-of-life management.

Our sustainability strategy is anchored in three pillars—Environmental, Social, and Governance—covering 12 action areas that address climate action, air quality, circular design, product efficiency, workforce development and employee wellbeing, responsible supply chain, and strong governance. Our commitment spans the full life cycle of our platforms, from design and manufacturing through installation and ongoing service, with systems engineered for circularity. At end of life, we refurbish and reuse components where feasible and recycle more than 90% of the module by weight, minimizing waste and supporting resource efficiency. This is a departure from combustion-based, wind, and solar power generation methods that typically produce a significant amount of unrecyclable waste, which increases landfill use, and in the case of solar, creates the possibility of toxic material contamination.

#### Research and Development

#### Advanced Technologies Programs
Our Advanced Technologies programs include research and development and demonstration programs funded by third parties. We undertake both privately funded and publicly funded research and development to develop and grow these opportunities, reduce product and output costs, and expand our technology portfolio. Our Advanced Technologies programs are currently focused on continued development and advancement of our core carbonate fuel cell technology, including carbon capture and recovery, as well as commercialization of our solid oxide electrolysis technology for distributed hydrogen. We report the revenue earned under these programs as Advanced Technologies contract revenues in our Consolidated Statements of Operations and Comprehensive Loss.

We have historically worked on technology development with various U.S. government departments and agencies, including the U.S. Department of Energy (the "DOE") and the Department of State (the "DOS"). Government funding, principally from the DOE and DOS, provided 2%, 4% and 3% of our revenue for the fiscal years ended October 31, 2025, 2024, and 2023, respectively. In addition to these U.S. government departments and agencies, we also work to develop technologies through privately funded programs with companies like Canadian Natural Resources and ExxonMobil Technology and Engineering Company (formerly known as ExxonMobil Research and Engineering Company) ("EMTEC") along with the ExxonMobil Low Carbon Business Solutions business unit.

Beyond the external funding sources described above, we intend to prudently invest capital to accelerate commercialization of complementary technologies, including solid oxide electrolysis and carbon capture and separation, as discussed below in more detail in the section entitled "Company Funded Research and Development."

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#### License and Joint Development Agreements with EMTEC
EMTEC and FuelCell Energy began working together in 2016 under an initial joint development agreement with a focus on better understanding the fundamental science behind carbonate fuel cells for use in advanced applications and specifically how to increase efficiency in separating and concentrating carbon dioxide from the exhaust of natural gas-fueled power generation. This collaboration has progressed from lab testing to preparation for real-world deployment with ExxonMobil subsidiaries, with a pilot project expected to be completed and commissioned in calendar year 2026 at Esso Nederland B.V.'s ("Esso") Rotterdam refinery. This will mark a pivotal shift from research and development to industrial-scale demonstration, supported by policy incentives and international funding, which we believe will position our carbon capture technology for broader market adoption.

In June 2019, we entered into a license agreement with EMTEC to facilitate the further development of our carbon capture platform (the "EMTEC License Agreement"). Pursuant to the EMTEC License Agreement, we granted EMTEC and its affiliates a non-exclusive, worldwide, fully-paid, perpetual, irrevocable, non-transferable license and right to use our patents filed on or before April 30, 2021, and any data, know-how, improvements, equipment designs, methods, processes and the like provided directly by the Company or its affiliates to EMTEC or its affiliates under any agreement, or otherwise, on or before April 30, 2021, to the extent it is useful to research, develop and commercially exploit carbonate fuel cells in applications in which the fuel cells concentrate carbon dioxide from external industrial and power sources and for any other purpose attendant thereto or associated therewith, in exchange for a $10 million payment. Such right and license is sublicensable to third parties performing work for or with EMTEC or its affiliates but is not otherwise sublicensable.

The EMTEC License Agreement facilitated the execution of the Joint Development Agreement between the Company and EMTEC (which was originally effective as of October 31, 2019) (as amended to date, the "Joint Development Agreement"). The initial focus of the Joint Development Agreement was to further enhance carbonate fuel cell technology for the purpose of capturing carbon dioxide from industrial facilities.

As amended to date, the term of the Joint Development Agreement will end on December 31, 2026 (unless terminated earlier), and we and EMTEC continue to work to allow for technical readiness of the Generation 2 Technology fuel cell module as well as pursue additional continuous technology development.

In parallel with the Joint Development Agreement, we and EMTEC will pursue pioneer commercial deployments of the Generation 2 Technology with third parties, with us as the fuel cell module manufacturer for such deployments.

Under the Joint Development Agreement, we may pursue new carbon capture projects with third parties for the remaining duration of the term of the Joint Development Agreement using Generation 1 Technology or Generation 2 Technology (provided that the use of Generation 2 Technology must be limited to the use of Generation 2 physical fuel cell properties and design elements in Generation 1 Technology modules), with any new sales of such activities, authorized work, and carbon capture projects, when summed together, having the capability of capturing no more than 250,000 tons of CO<sub>2</sub> on a cumulative annual basis.

Following expiration of the term of the Joint Development Agreement, the Company will also have the opportunity to continue to service continuing obligations for such projects entered into during the term of the Joint Development Agreement (e.g., completion of contracted builds, service and repair/replacement of components, etc.). To allow the Company to pursue such projects, EMTEC also granted to the Company a worldwide, non-exclusive, royalty-free, irrevocable (during the term of the Joint Development Agreement), non-sub-licensable license to EMTEC's Generation 1 Technology as well as to EMTEC's Generation 2 Technology physical fuel cell properties and design elements (including EMTEC's background information and background patents relating to Generation 2 Technology physical fuel cell properties and design elements).

The expected annual budget for the anticipated work through the remaining term of the Joint Development Agreement is at least $10.0 million per year, subject to approval by EMTEC. Research costs will be set forth in project descriptions that are subject to mutual agreement and pre-approval by us and EMTEC in writing.

For our use in power applications and hydrogen applications, the Joint Development Agreement includes certain worldwide, non-exclusive, perpetual, irrevocable licenses to practice the Program Results (as defined in the Joint Development Agreement), EMTEC's background information and background patents for Generation 1 Technology, and

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EMTEC's background information and background patents for Generation 2 Technology, which will continue on a royalty-free basis going forward.

In addition to our work with EMTEC under the Joint Development Agreement, on January 31, 2024, we received a purchase order valued at $11.6 million from Esso (an affiliate of Exxon Mobil Corporation and EMTEC), for fuel cell modules as well as engineering, procurement, fabrication, testing and delivery services required for the construction and implementation of the modular point source carbon capture pilot plant at Esso's refinery in Rotterdam, The Netherlands. The carbon capture system to be installed at the pilot plant will directly capture CO<sub>2</sub> emissions from an exhaust stream at Esso's refinery while simultaneously producing heat and power. The system will sequester captured CO<sub>2</sub> under the North Sea as part of the Porthos Project. This pilot plant project achieved meaningful milestones in fiscal year 2025, as we completed manufacture of the fuel cell modules to be installed at the pilot plant and Esso continued to make significant progress on the site work in Rotterdam. We expect to ship the fuel cell modules to Rotterdam and expect that this pilot plant will be completed and commissioned in calendar year 2026.

Third party funded research and development is included in Advanced Technologies (revenue) in our consolidated financial statements.

#### Company Funded Research and Development
In addition to research and development performed under research contracts, including as described under the heading "Advanced Technologies Programs" above, we also fund our own research and development activities to (i) advance our core carbonate portfolio, including the development of carbon recovery and capture applications, (ii) advance the development of our solid oxide electrolysis cell and module technology with the goal of supporting growing demand for applications in the hydrogen generation market segment, and (iii) support our generation operating portfolio with product enhancements and improvements.

We work to continuously improve and mature our products and implement lessons learned into our product designs and manufacturing process subsequent to introduction. We also continue to invest in improvement initiatives with respect to our core molten carbonate technology. For example, we have identified improvement opportunities ranging from improved thermal management by reducing internal temperature to improving the performance of our electrical balance of plant and implemented design changes to our commercial platforms which are expected to improve overall product performance. As it relates to our fuel cell modules, these improvements center around delivering more uniform temperature distribution of the cell stack within the modules with the intent of improving efficiency and output over the life of the modules to achieve the product's expected design life. Continued extension of design life and efficiency of our modules over time is a core research and development focus. For example, in fiscal year 2025, we introduced a 1.25 MW power block (or module) with an electrical efficiency level of 50%.

In addition, we are also continuing to invest in our commercialization of our patented technologies, such as carbon capture and separation and solid oxide electrolysis for hydrogen production and energy storage as we believe these technologies represent significant future market opportunities. Through fiscal year 2024, we invested in product development and manufacturing scale up for two solid oxide platforms: power generation and electrolysis. However, with the restructuring actions announced in November 2024 and June 2025, we have ceased development of the solid oxide power generation platform and are focusing on demonstrating the capabilities of our solid oxide electrolysis platform while seeking partners to advance the commercialization and deployment of this technology.

Company funded research and development is included in Research and development expenses (operating expenses) in our consolidated financial statements.

**Proprietary Rights and Licensed Technology**

Our intellectual property consists of patents, trade secrets, institutional knowledge and know-how that we believe is a competitive advantage and represents a barrier to entry for potential competitors. We have extensive experience in designing, manufacturing, operating and maintaining fuel cell power plants. This experience cannot be easily or quickly replicated, which, combined with our trade secrets, proprietary processes and patents, safeguards our intellectual property rights.

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As of October 31, 2025, we (excluding our subsidiaries) had 152 U.S. patents and 319 patents in other jurisdictions covering our fuel cell technology (in certain cases covering the same technology in multiple jurisdictions), with patents directed to various aspects of our carbonate technology, solid oxide fuel cell technology, proton exchange membrane fuel cell technology and applications thereof. As of October 31, 2025, we also had 29 patent applications pending in the U.S. and 79 patent applications pending in other jurisdictions.

As of October 31, 2025, our subsidiary, Versa Power Systems, Ltd. ("Versa"), had 19 U.S. patents and 63 international patents covering solid oxide fuel cell technology (in certain cases covering the same technology in multiple jurisdictions). As of October 31, 2025, Versa also had 13 pending U.S. patent applications and 24 patent applications pending in other jurisdictions.

In addition, as of October 31, 2025, our subsidiary, FuelCell Energy Solutions, GmbH, had license rights to 2 U.S. patents and 7 patents outside the U.S. (in certain cases covering the same technology in multiple jurisdictions) for carbonate fuel cell technology licensed from Fraunhofer IKTS.

We continue to innovate, and no patent expiration, either individually or in the aggregate, is expected to have any material impact on our current or anticipated operations.

Certain of our U.S. patents are the result of government-funded research and development programs, including our DOE programs. U.S. patents we own that resulted from government-funded research are subject to the government potentially exercising "march-in" rights. We believe that the likelihood of the U.S. government exercising these rights is remote and would only occur if we ceased our commercialization efforts and there was a compelling national need to use the patents.

#### Manufacturing and Service Facilities
We operate a 167,000 square-foot manufacturing facility in Torrington, Connecticut where we produce the individual cell packages and assemble fuel cell modules for our carbonate fuel cell products. This facility also houses our global service center. Our completed modules are conditioned in Torrington and shipped directly to customer sites. We continue to invest in manufacturing capability with the goal of reducing production bottlenecks and driving productivity, including investments in automation, laser welding, and the construction of additional integrated conditioning capacity. We also constructed a SureSource 1500 in Torrington during fiscal year 2022, which operates as a testing facility for qualifying new supplier components and performance testing and validation of continued platform innovations, including carbon recovery.

As of October 31, 2025, the Torrington facility was operating at a 41 MW per year annualized production rate on a single production shift. Maximum annualized capacity (module manufacturing, final assembly, testing and conditioning) is 100 MW per year under the Torrington facility's current configuration when being fully utilized. We believe that the Torrington facility could accommodate an estimated annualized production capacity of up to 350 MW per year with additional capital investments in machinery, equipment, tooling, labor, outsourcing of certain processes, and inventory. We have evaluated several manufacturing scaling scenarios, which include increasing annualized production capacity at the Torrington facility as well as building out new manufacturing facilities. These scenarios include evaluation of our vendors, supply chain base, labor and resource availability. We have undertaken this comprehensive evaluation with the goal of ensuring that we are ready to expand quickly and efficiently to meet customer requirements.

We design and manufacture the core fuel cell components that are stacked on top of each other to build a fuel cell stack. For megawatt-scale power plants, four fuel cell stacks are combined to build a 1.25 MW power block (or module). To complete the system, the modules are combined with the balance of plant ("BOP") components. The mechanical BOP components process the incoming fuel such as natural gas or biogas and include various fuel handling and processing equipment such as pipes and blowers. The electrical BOP components process the power generated for use by the customer and include electrical interface equipment such as an inverter. The BOP components are either purchased directly from suppliers or the manufacturing is outsourced based on our designs and specifications. This strategy allows us to leverage our manufacturing capacity, focusing on the critical aspects of the power plant where we have specialized knowledge and expertise and possess extensive intellectual property. BOP components are shipped directly to a project site and are then assembled with the fuel cell module into a complete power plant.

The Torrington production and service facility and the Danbury corporate headquarters and research and development facility are ISO 9001:2015 and ISO 14001:2015 certified and our Field Service operation (which maintains the installed fleet of our systems) is ISO 9001:2015 certified, reinforcing the tenets of our quality management system and a focus on

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safety, continuous improvement, and commitment to quality, environmental stewardship, and customer satisfaction. Sustainability is promoted throughout our organization. We manufacture our products and manage them through end-of-life using environmentally friendly business processes and practices, certified to ISO 14001:2015. We continually strive to improve how we plan and execute across the entire product life cycle. We maintain a chain of custody and responsibility of our products throughout the product life cycle and strive for "cradle-to-cradle" sustainable business practices, incorporating sustainability in our corporate culture. When our systems reach the end of their useful lives, we can refurbish and re-use certain parts and then recycle most of what we cannot re-use. By weight, approximately 93% of the entire power plant can be re-used or recycled at the end of its useful life.

Our manufacturing and research and development facility in Calgary, Alberta, Canada is focused on the engineering and development of solid oxide electrolysis technology. This facility also houses our stack research and development effort and includes equipment for the manufacturing of solid oxide electrolysis cells and stacks, including advanced manufacturing capabilities.

We have a manufacturing and service facility in Taufkirchen, Germany that has the capability to perform final module assembly for up to 20 MW per year of sub-megawatt fuel cell power systems to service the European market. Our European service activities are also operated out of this location. Our operations in Europe are certified under both ISO 9001:2015 and ISO 14001:2015.

As we continue our focus on business in international markets such as Europe and Asia, we plan to explore manufacturing and assembly opportunities in those markets to achieve more efficient product manufacturing and supply chain operations, as well as meet the increasing government requirements for the inclusion of locally sourced content and components in order to benefit from enhanced clean energy investment incentives.

#### Raw Material Sourcing and Supplier Relationships
We use various commercially available raw materials and components to construct a fuel cell module, including nickel and stainless steel, which are key inputs in our manufacturing process. Our fuel cell stack raw materials are sourced from multiple vendors and are not considered precious metals. We have a global integrated supply chain with qualified sources of supply, many of which are located locally in the regions in which we have established manufacturing and service operations, including Europe and Asia. We have not sourced or procured, and do not source or procure, directly or indirectly, any materials from Russia.

From time to time, we may enter into over-the-counter financial hedges to mitigate market price volatility associated with our underlying physical commodity exposure (and other asset classes) consistent with our Financial Risk Management Policy. These hedges are non-speculative in nature, are entered into with investment grade-rated multinational financial institutions and are governed under the terms of the International Swaps and Derivative Association.

While we manufacture fuel cells in our Torrington facility, the electrical and mechanical BOP components are assembled by and procured from several suppliers. All of our suppliers must undergo a stringent and rigorous qualification process. We continually evaluate and qualify new suppliers as we diversify our supplier base in our pursuit of lower costs, security of supply, and consistent quality. We purchase mechanical and electrical BOP components from third party vendors, based on our own proprietary designs.

Assuring the absence of conflict minerals in our products is a continuing initiative. Our fuel cells, including the fuel cell components and completed fuel cell module, do not utilize any 3TG minerals (i.e., tin, tungsten, tantalum and gold) that are classified as conflict minerals. We utilize componentry in the BOP, such as computer circuit boards, that utilize trace amounts of 3TG minerals. For perspective, total shipments in fiscal year 2024 weighed approximately 2.4 million pounds, of which only approximately 29 pounds, or 0.001207% of the total, represented 3TG minerals, so the presence of these minerals is negligible. Our conflict mineral disclosure filed with the Securities and Exchange Commission ("SEC") on Form SD contains specific information on the actions we are taking to avoid the use of conflict minerals.

As we continue to grow our business, we remain focused on improving quality, increasing the competitive supply landscape, maintaining existing supplier relationships, as well as building strong new key supplier relationships to expand our supply chain options.

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#### Engineering, Procurement and Construction
We provide customers with complete turn-key solutions, including development, engineering, procurement, construction, interconnection and operations for our fuel cell projects. We have developed relationships with many design firms and licensed general contractors and have a repeatable, safe, and efficient execution philosophy that has been successfully demonstrated in numerous jurisdictions, both domestically and abroad, all with an exemplary safety record. The ability to rapidly and safely execute installations minimizes high-cost construction period financing and can assist customers in certain situations when the commercial operations date for a project is time sensitive.

#### Services and Warranty Agreements
We offer a comprehensive portfolio of services, including engineering, project management and installation, and long-term operating and maintenance programs, including trained technicians that remotely monitor and operate our systems around the world, 24 hours a day and 365 days a year. We directly employ field technicians to service our systems and maintain distribution centers near our customers to support the high availability of our systems.

For all operating projects not under a PPA, customers purchase long-term service agreements ("LTSAs"), some of which have terms of up to 20 years. Pricing for LTSAs is based upon the value of service assurance and the markets in which we compete and includes all future maintenance and fuel cell module exchanges. Each system has a target design life of 25-to-30 years. The fuel cell modules, with legacy modules having a 5-year target cell design life and current production modules having a 7-year target cell design life, go through periodic replacement, while the BOP systems, which consist of conventional mechanical and electrical equipment, are maintained over the life of the project.

Beginning in fiscal year 2024, we began entering into LTSAs with certain customers in South Korea, pursuant to which we agreed to provide replacement modules and to service these customers' facilities after they transitioned away from their prior service providers. These LTSAs provide the Company with an incremental product sale opportunity.

Under the typical provisions of both our LTSAs and PPAs, we provide services to monitor, operate, service and maintain our systems to meet specified performance levels. Operations and maintenance are key drivers for installed projects to deliver their projected revenue and cash flows. The service aspects of our business model provide a recurring and predictable revenue stream for the Company. We have committed future production for scheduled fuel cell module exchanges under LTSAs and PPAs through the respective expiration dates of such LTSAs and PPAs, which range through 2042. The pricing structure of the LTSAs incorporates these scheduled exchanges and the committed nature of this production facilitates our production planning. Many of our PPAs and LTSAs include guarantees for system performance, including electrical output and heat rate. Should the system not meet the minimum performance levels, we may be required to replace the fuel cell module with a new or used replacement module and/or pay performance penalties. Our goal is to optimize our fuel cell system to meet expected operating parameters throughout its contracted service terms.

In addition to our service agreements, we provide a warranty for our products against manufacturing or performance defects for a specific period of time. The warranty term in the U.S. is typically 15 months after shipment or 12 months after acceptance of our products. We accrue for estimated future warranty costs based on historical experience.

#### Government Regulation and Public Policy
Our Company and our products are subject to various federal, provincial, state and local laws and regulations relating to, among other things, land use, safe working conditions, handling and disposal of hazardous and potentially hazardous substances and emissions of pollutants into the atmosphere. Emissions of SOx and NOx from our power plants are substantially lower than conventional combustion-based generating stations and are far below existing and proposed regulatory limits. The primary emissions from our power plants, assuming no cogeneration application, are humid flue gas that is discharged at temperatures of 700-800° F, water that is discharged at temperatures of 10-20° F above ambient air temperatures, and CO<sub>2</sub> that is generated in per-kW hour amounts that are, due to the high efficiency of fuel cells, significantly less than conventional fossil fuel central generation power plants. Depending on the jurisdiction, whether our plants require water discharge permits is dependent upon whether the discharge is directed to a storm drain or wastewater system.

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We operate in a global market shaped by evolving government policies intended to promote clean power and distributed energy technologies, including fuel cells. These policies vary by region and may include mechanisms such as investment tax credits, cash grants, performance-based incentives, environmental attribute programs, permitting and interconnection requirements, and applicable utility tariffs. A summary of certain policies follows.

***United States***

The recent passage of the OBBBA in the United States, supported by the ongoing expansion of U.S. natural gas infrastructure, marks, what we believe is, a significant development for our industry, by reinstating the Investment Tax Credit for fuel cell projects and the Section 45Q tax credit for carbon capture and utilization:

● **Investment Tax Credit ("ITC"):** The OBBBA reinstates the ITC for qualifying fuel cell projects at a flat 30% rate through at least 2032. The simplified structure and transferability provisions are intended to improve flexibility and enhance project economics. These features may support broader adoption of fuel cell technology across multiple sectors, including commercial, industrial, and resiliency-focused applications. While the ultimate impact will depend on project eligibility, compliance, and future regulatory guidance, we believe these provisions position our products to compete effectively in a growing market.

● **Section 45Q Incentives:** Federal incentives under Section 45Q provide tax credits for qualifying carbon capture, utilization, and storage projects at rates up to $85 per metric ton of qualified carbon oxide captured and sequestered. These incentives are intended to accelerate deployment of carbon capture solutions and may benefit applications we are developing, including those in collaboration with ExxonMobil's Low Carbon Solutions business.

● **Natural Gas Infrastructure:** Ongoing expansion of U.S. natural gas infrastructure underscores its continued role as a backbone fuel in the nation's energy mix. Our products are designed to generate clean, reliable power from natural gas through an electrochemical process rather than combustion, significantly reducing emissions compared to conventional generation methods. Utilizing natural gas as a feedstock in fuel cells represents one of the lowest-emission pathways for natural gas-based power production.

Our fuel cells are currently deployed in several states as baseload power sources, including applications such as microgrids. We believe that the combination of supportive policy measures, technology flexibility, and market demand trends positions us to pursue growth opportunities in the evolving energy landscape. Actual results will depend on customer adoption, competitive dynamics, and other factors described in Part II, Item 1A. Risk Factors.

***South Korea***

South Korea's Clean Hydrogen Portfolio Standard ("CHPS") program provides long-term purchase contracts and direct market incentives for clean energy power generators, creating what we believe to be a stable and attractive market for fuel cell technologies like those offered by FuelCell Energy. The CHPS program, launched in 2024, mandates clean hydrogen adoption through:

● Long-term purchase contracts (up to 15 years) for hydrogen-based power generation.

● A bidding market mechanism to incentivize participation.

● Forward market opening in 2027 for clean hydrogen power generation.

● A strategic goal of increasing hydrogen/ammonia-based electricity share to 2.1% by 2030 and 7.1% by 2036.

We believe this program will create a more predictable revenue environment for companies deploying hydrogen and fuel cell technologies, aligning with global decarbonization trends.

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***Europe***

European governments continue to be supportive of hydrogen-based generation and efficient CHP applications. In the European Union ("EU"), the Emissions Trading System ("ETS") has created carbon capture sequestration allowances to be applied to ETS calculations for carbon not released into the atmosphere and instead placed into a storage location for future use. Similar credits are allowed for entities that capture CO<sub>2</sub> emissions to produce precipitated calcium carbonate, in which the used CO<sub>2</sub> is chemically bound. The EU is anticipated to develop a standard to be able to classify when CO<sub>2 </sub>has been "stored". We believe that these developments, along with legislation recently passed by the EU Parliament leading to the creation of the European Hydrogen Bank funded with 3 billion euros, will provide market support for carbon capture technologies. Additionally, in response to the hardships and global energy market disruption caused by Russia's invasion of Ukraine, the EU adopted the REPowerEU Plan. REPowerEU is a plan for: saving energy, producing clean energy, and diversifying the EU's energy supplies. The REPowerEU Plan is backed by financial and legal measures to build the new energy infrastructure and system that Europe needs.

#### Significant Customers and Information about Geographic Areas
Information concerning the Company's dependence on significant customers is incorporated herein by reference to Note 1. "Nature of Business, Basis of Presentation and Significant Accounting Policies–Concentrations" of the Notes to the Consolidated Financial Statements.

#### Human Capital Management and Development
We are committed to attracting and retaining highly qualified and motivated employees who drive our organization's success and strengthen the communities we serve. Our recruitment practices are grounded in merit and professional qualifications, and we adhere strictly to all applicable laws—both domestic and international—pertaining to nondiscrimination in the workplace. Our dedication to excellence is consistently reflected in our employee training and development programs and policies.

As of October 31, 2025, we had 424 full-time employees, of which 381 were located in the United States, 25 were located in Canada, 7 were located in Germany, and 11 were located in South Korea. We had no part time employees as of October 31, 2025.

In November 2024, we announced a global restructuring of our operations in the U.S., Canada, and Germany that aimed to reduce operating costs, realign resources toward advancing the Company's core technologies, and protect the Company's competitive position amid slower-than-expected-investments in clean energy. The restructuring plan included a reduction in our workforce of approximately 13% or 75 employees in November 2024 and included reduced spending on product development, overhead and other costs. This followed a 4% or 17 employee reduction in workforce in September 2024.

In June 2025, we announced a second global restructuring plan to further reduce operating costs, realign resources toward advancing the Company's core carbonate technologies, and protect the Company's competitive position amid slower-than-expected market investments in clean energy. This plan includes: (i) a workforce reduction of 122 employees, or approximately 22% of our workforce across the U.S., Canada and Germany (which reduction was implemented on June 5, 2025), (ii) a significant reduction of discretionary overhead spending, (iii) recalibration of the Torrington manufacturing facility production schedule to align with contracted demand, rather than forecasted demand, which, without continued growth in our closed order book, would result in a decrease in our annualized production rate, (iv) the deferral of certain compensation and benefit obligations, (v) the cessation of the majority of development efforts with respect to our solid oxide technology, and (vi) other targeted cost-saving measures.

#### Compensation and Benefits
Our compensation philosophy is built on a simple principle: to attract, develop, and retain world-class talent, we must offer programs that are competitive, well-structured, and purposeful. We provide market-competitive base pay, complemented by benefits that support financial security and well-being. Our programs include an annual Management Incentive Plan, Long-Term Equity Incentive Plans, and a Company-matched 401(k) plan. Equity ownership is also a central feature of our compensation philosophy, as employee equity ownership ensures that our team will share directly when they create value

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for our stockholders. In this way, our compensation approach not only rewards performance but also aligns our people with the long-term success of the Company.

#### Workforce Environmental Health and Safety
We take workplace jobsite safety and environmental compliance very seriously. Under our robust environmental, health and safety ("EH&S") program, we strongly encourage the reporting of near misses to identify opportunities for improvement, and we regularly evaluate our EH&S protocols in an effort to keep our facilities and workspaces environmentally friendly and safe for our team members, stakeholders, customers, and visitors.

We are committed to EH&S excellence. Our Environmental Management System is certified to ISO 14001:2015, and our Occupational Health & Safety Management System is certified to ISO 45001:2018. Health and safety are both a bottom-up and top-down priority as the Company's Board of Directors is actively engaged in ongoing review of our policies, protocols and performance.

Our EH&S core principles are:

● Zero injuries / incidents,

● Compliance with all legal obligations,

● Pollution prevention,

● Waste reduction, and

● Continual improvement.

We are also in the process of performing life cycle analyses on our products, as well as our production and office locations, and developing a roadmap to net zero carbon emissions.

Our safety performance is excellent and is demonstrated by experience modification rates below the industry average of 1.0 for the last 7 fiscal years: 2019: 0.65, 2020: 0.59, 2021: 0.68, 2022: 0.088, 2023: 0.89, 2024: 0.83, and 2025: 0.84. We have maintained an "A" rating since 2016 providing "Safety Tier 1" performance with ISNetworld, a database for online contractor safety management designed to streamline companies' and contractors' compliance pre-qualification processes. Because EH&S compliance is a priority for us, we also leverage ISNetworld to qualify contractors that work on our projects.

**Available Information**

We file annual, quarterly and current reports, proxy statements and other information electronically with the SEC. Our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, including any exhibits thereto, and all amendments to those reports are made available free of charge through the "Investors" section of the Company's website (http://www.fuelcellenergy.com) as soon as practicable after such material is electronically filed with, or furnished to, the SEC. Material contained on our website is not incorporated by reference in this report. Our executive offices are located at 3 Great Pasture Road, Danbury, CT 06810. The SEC also maintains a website that contains reports and other information regarding issuers that file electronically with the SEC located at http://www.sec.gov.

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#### Information about our Executive Officers

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| NAME | AGE | PRINCIPAL OCCUPATION |
| Jason B. Few<br>President, Chief Executive Officer  | 59 | Mr. Few has served as President and Chief Executive Officer of the Company since August 2019 and as a director since 2018. He chairs the Executive Committee of our Board of Directors. From September 2019 to March 2022, he also served as the Company's Chief Commercial Officer.<br>Prior to joining FuelCell Energy, Mr. Few served as President of Sustayn Analytics LLC, a cloud-based artificial intelligence and machine learning waste and recycling optimization company, from 2018 to 2019. In addition, Mr. Few has served as Founder and Senior Managing Partner of BJF Partners LLC, a privately held strategic consulting firm, since 2016. He has more than 30 years of experience creating enterprise value for Global Fortune 500 and privately held companies across the energy, technology, telecommunications and private aviation sectors.<br>Mr. Few served as President and Chief Executive Officer of Continuum Energy, a gas gathering and midstream energy products and LDC gas marketing services company, from 2013 to 2016. He previously held senior leadership roles at NRG Energy, Inc., an integrated energy company, including Executive Vice President and Chief Customer Officer from 2011 to 2012, and at Reliant Energy, a retail electricity provider, where he served as President from 2009 to 2012 and as Vice President, Smart Energy from 2008 to 2009. He also served as a Senior Advisor to Verve Industrial Protection, an industrial cybersecurity software company, from 2016 to 2019.<br>Mr. Few was elected to the board of directors of Enbridge Inc. (NYSE: ENB) effective May 4, 2022, where he now chairs the Governance Committee and serves on the Audit, Finance and Risk Committee. He previously served on the board of directors of Marathon Oil Corporation (NYSE: MRO) from April 2019 to May 2022. <br>Mr. Few received his Bachelor's Degree in Computer Systems in Business from Ohio University and his Master's of Business Administration from Northwestern University's J.L. Kellogg Graduate School of Management. |
| Michael S. Bishop<br>Executive Vice President, Chief Financial Officer and Treasurer | 57 | Mr. Bishop was appointed Executive Vice President in June 2019 and has served as the Company's Chief Financial Officer since June 2011. Mr. Bishop previously served as the Company's Treasurer from June 2011 to June 2022 and as Senior Vice President of the Company from June 2011 to June 2019. Mr. Bishop was reappointed Treasurer of the Company in August 2023. He has more than 25 years of experience in financial operations and management with public high growth technology companies with a focus on capital raising, project finance, debt/treasury management, investor relations, strategic planning, internal controls, and organizational development. Since joining the Company in 2003, Mr. Bishop has held a succession of financial leadership roles, including Assistant Controller, Corporate Controller and Vice President and Controller. Prior to joining the Company, Mr. Bishop held finance and accounting positions at TranSwitch Corporation, Cyberian Outpost, Inc. and United Technologies, Inc. He is a certified public accountant and began his professional career at McGladrey and Pullen, LLP (now RSM  |

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| ('<br>', 'PRINCIPAL OCCUPATION<br>', 'Unnamed: 4_level_2') |
| US LLP). Mr. Bishop also served four years in the United States Marine Corps.<br>Mr. Bishop received his Bachelor of Science in Accounting from Boston University and a Masters of Business Administration from the University of Connecticut. |

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| Joshua Dolger<br>Executive Vice President, General Counsel and Corporate Secretary | 51 | Mr. Dolger was appointed Executive Vice President and General Counsel on December 10, 2021 and Corporate Secretary on June 25, 2021. Mr. Dolger previously served as Interim General Counsel from June 25, 2021 to December 10, 2021 and as Senior Counsel from May 17, 2021 to June 25, 2021. In his current positions, Mr. Dolger oversees all the Company's legal and governmental affairs, as well as provides leadership in all aspects of the Company's business, including commercial matters, compliance, corporate governance and board activities. Prior to joining the Company, Mr. Dolger held a variety of legal positions of increasing responsibility at the headquarters of Terex Corporation, a public company and a global manufacturer of aerial work platforms and materials processing machinery, most recently as Assistant General Counsel from January 2016 to March 2021. Mr. Dolger's focus included Securities and Exchange Commission work, mergers and acquisitions, corporate governance, commercial contract drafting and negotiation, and implementation of the company's multi-year strategic supply chain initiative. Prior to joining Terex Corporation, Mr. Dolger was a senior corporate attorney at Pullman & Comley, LLC. Mr. Dolger is a licensed attorney in Connecticut and New York. <br>Mr. Dolger received a Bachelor of Arts Degree from the State University of New York at Albany and Juris Doctor from Pace University School of Law. |
| Shankar Achanta<br>Executive Vice President, Chief Product and Technology Officer | 47 | Mr. Achanta was appointed Executive Vice President, Chief Product and Technology Officer on January 1, 2025, after joining the Company as Senior Vice President, Chief Engineer in April 2024. As Executive Vice President, Chief Product and Technology Officer, Mr. Achanta oversees FuelCell Energy's global product strategy, technology, engineering and program management functions. He has more than 20 years of experience in the energy sector, building and leading cross functional teams and directing product portfolios for distributed energy and electrification markets. Prior to joining FuelCell Energy, Mr. Achanta served as Vice President of Product Management and Systems Engineering at Sunnova Energy, an American energy company that provides residential solar and energy storage services, from 2021 to 2024, where he led the development and deployment of electrification solutions across residential, commercial, and community microgrid segments. Prior to joining Sunnova Energy, Mr. Achanta held engineering roles of increasing responsibility with Schweitzer Engineering Laboratories, a privately held engineering company, including as the Head of Product – Distribution Control and Sensors from 2007 to 2021. In these roles, Mr. Achanta had product line ownership for distribution power systems, substation automation, wireless systems, sensors and software. <br>Mr. Achanta is an inventor with multiple patents in energy systems and communication technologies and is a member of the Institute of Electrical  |

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and Electronics Engineers (IEEE). He holds a Master of Science in Electrical Engineering from Arizona State University and a leadership certification from the Center for Creative Leadership.

#### ITEM 1A. RISK FACTORS
An investment in our common stock involves a high degree of risk. Prior to making a decision about investing in our securities, you should carefully consider the specific risk factors discussed below, together with all of the other information in this Annual Report on Form 10-K, including the section titled "Management's Discussion and Analysis of Financial Condition and Results of Operations" and our consolidated financial statements and related notes. The risks and uncertainties we have described are not the only ones we face. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also affect our business, financial condition, or results of operations. If any such risks actually occur, our business, financial condition, or results of operations could be materially and adversely affected. In such cases, the market price of our common stock could decline, and you may lose all or part of your investment.

#### Risks Related to Our Business, Industry and Supply Chain

#### We have incurred losses and anticipate continued losses and negative cash flows.
We have transitioned from a research and development company to a commercial products manufacturer, services provider and developer. We have not been profitable since our year ended October 31, 1997. We expect to continue to incur net losses and generate negative cash flows until we can produce sufficient revenues and gross profit to cover our costs. We may never become profitable. Even if we do achieve profitability, we may be unable to sustain or increase our profitability in the future. For the reasons discussed in more detail below, there are uncertainties associated with our achieving and sustaining profitability. We have, from time to time, sought financing in the public markets in order to fund operations and will continue to do so. Our future ability to obtain such financing could be impaired by a variety of factors, including, but not limited to, the price of our common stock and general market conditions.

#### Our cost reduction strategy for manufacturing may not succeed or may be significantly delayed, which may result in our inability to deliver improved margins.
Our cost reduction strategy for manufacturing is based on the assumption that increases in production will result in economies of scale. In addition, our cost reduction strategy relies on advancements in our manufacturing process, global competitive sourcing, engineering design, reducing the cost of capital and technology improvements (including stack life and projected power output). Failure to achieve our cost reduction targets could have a material adverse effect on our results of operations and financial condition.

***We have debt and finance obligations outstanding and may incur additional debt in the future, which may adversely affect our financial condition and future financial results.***

As of October 31, 2025, our total consolidated debt and finance obligations outstanding ("indebtedness") was $122.9 million ($119.6 million, net of deferred finance costs).

Our ability to make scheduled payments of principal and interest and other required repayments depends on our future performance, which is subject to economic, financial, competitive and other factors beyond our control. Our business may not generate cash flows from operations in the future sufficient to service our debt and make necessary capital expenditures. If we are unable to generate such cash flows, we may be required to adopt one or more alternatives, such as selling assets, further restructuring our operations, restructuring our debt or obtaining additional equity capital on terms that may be onerous or dilutive.

We may incur additional indebtedness in the future in the ordinary course of business, which could include onerous restrictions on us. If new debt is added to current debt levels, the risks described above could intensify. Our debt agreements contain representations and warranties, affirmative and negative covenants, and events of default that entitle the lenders to cause our indebtedness under such debt agreements to become immediately due and payable.

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***We rely on project financing for our generation operating portfolio, which includes debt and tax equity financing arrangements, to realize the benefits provided by investment tax credits and accelerated tax depreciation. In the event that interest rates rise or there are changes in tax policy, our financial results could be harmed.***

Rising interest rates may increase our cost of capital. Part of our business strategy is to generate positive cash flows after debt service from our generation operating portfolio. Rising interest rates may have an adverse impact on the cost of debt and thus result in lower cash flows after debt service than we realize today. We also expect that projects we retain in our generation operating portfolio will receive capital from tax equity investors who derive a significant portion of their economic returns through tax benefits. Tax equity investors are generally entitled to substantially all of the project's tax benefits, such as those provided by the U.S. investment tax credit ("ITC") and Modified Accelerated Cost Recovery System or bonus depreciation. Our ability to obtain additional financing in the future depends on the continued confidence of financing sources in our business model and the continued availability of tax benefits applicable to our products. If we are unable to enter into tax equity financing agreements with attractive pricing terms, or at all, we may not be able to obtain the capital needed to finance the build out of our generation assets which would impact our overall liquidity and our business, financial condition and results of operations.

#### Unanticipated increases or decreases in business growth have resulted and may continue to result in adverse consequences to our financial condition and business strategy.
We operate a 167,000 square-foot manufacturing facility in Torrington, Connecticut where we produce the individual cell packages and assemble the fuel cell modules for our carbonate fuel cell products. The maximum annualized capacity (module manufacturing, final assembly, testing and conditioning) is 100 MW per year under the Torrington facility's current configuration when being fully utilized. We believe that the Torrington facility could accommodate an estimated annualized production capacity of up to 350 MW per year with additional capital investments in machinery, equipment, tooling, labor, outsourcing of certain processes and inventory.

We have a manufacturing and service facility in Taufkirchen, Germany that has the capability to perform final module assembly for up to 20 MW per year of carbonate sub-megawatt fuel cell power platforms to service the European market. Our European service activities are also operated out of this location.

Prior to the implementation of the restructuring actions announced in November 2024 and June 2025, our manufacturing and research and development facility in Calgary, Alberta, Canada focused on the engineering and development of our solid oxide power generation and electrolysis technologies. This facility also housed our solid oxide power generation and electrolysis stack research and development effort and includes equipment for the manufacturing of solid oxide cells and stacks, including advanced manufacturing capabilities. Beginning in fiscal year 2022 and continuing in fiscal years 2023 and 2024, we made investments in the Calgary facility, including by increasing the total leased facility space and ordering long lead process equipment, with the goal of increasing solid oxide production capacity. However, in November 2024 and June 2025, we announced global restructuring plans relating to our operations in the U.S., Canada, and Germany that aim to reduce operating costs, realign resources toward advancing the Company's core carbonate technologies, and protect the Company's competitive position amid slower-than-expected market investments in clean energy. These restructuring plans also include the deferment and cancelation of certain previously planned capital and project expenditures related to solid oxide manufacturing in our facility in Calgary, Canada. As a result of these restructuring plans, we have deferred the capital spending required to complete the Calgary expansion and do not currently expect to complete this project. In addition, as part of these restructuring plans, we ceased development of the solid oxide power generation platform and began focusing on demonstrating the capabilities of our solid oxide electrolysis platform. We expect to seek partnerships for solid oxide product commercialization and manufacturing.

If our business grows more quickly than we anticipate, our existing and manufacturing facilities and plans to increase production may be inadequate to meet demand and we may need to seek out new or additional space, or retrofit or further equip our existing facilities, at considerable cost to us. If our business does not grow as quickly as we expect, our existing manufacturing facilities would, in part, represent excess capacity for which we may not be able to recover the cost. In that circumstance, our revenues may be inadequate to support our committed costs and our planned growth, and our gross margins and business strategy would be adversely affected.

***Our workforce reduction may cause unintended consequences and our results of operations may be harmed.***

On June 5, 2025, we implemented a workforce reduction of approximately 22%, or 122 employees across our U.S., Canadian and German operations. While we believe this workforce reduction was necessary to help realign the Company's

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cost structure, this reduction may yield unintended consequences, such as the loss of certain institutional knowledge and technical expertise, as well as attrition beyond our intended reduction in workforce and reduced employee morale, which may cause our employees who were not affected by the reduction in workforce to seek alternate employment. Additional attrition could impede our ability to meet our operational goals, which could have a material adverse effect on our financial performance. In addition, as a result of the reductions in our workforce, we may face an increased risk of employment litigation. Furthermore, employees whose positions were eliminated may seek employment with our competitors. Although all our employees are required to sign a confidentiality and non-competition agreement with us at the time of hire, we cannot assure you that the confidential nature of our proprietary information will be maintained in the course of such future employment.

If our restructuring plan and workforce reduction do not result in the intended benefits or savings or result in unanticipated costs, including, but not limited to, additional charges and/or higher than expected severance and employee termination benefits costs, or if we are unable to successfully implement our restructuring plan, our results of operations and financial condition could be materially adversely affected. We cannot assure you that we will not undertake additional reduction and/or restructuring activities, that any of our efforts will be successful, or that we will be able to realize the cost savings and other anticipated benefits from our current or any future restructuring or reduction plans. In addition, if we continue to reduce our workforce, it may adversely impact our ability to respond rapidly to any new product, growth or revenue opportunities and to execute on our backlog and business plans.

***If our intangible assets and long-lived assets (including project assets) become impaired in the future, we may again be required to record a significant charge to operations.***

We have recorded significant impairment charges to operations in our financial statements upon our determination, and we may in the future be required to record significant impairment charges to operations in our financial statements should we again determine, that our long-lived assets (i.e., project assets, property, plant and equipment and amortizing intangible assets) are impaired. Such charges have had and may continue to have a significant negative impact on our reported financial condition and results of operations. Project assets, property, plant and equipment, goodwill, indefinite-lived intangible assets and inventory impairment charges totaled approximately $65.8 million, $1.3 million and $2.4 million for the fiscal years ended October 31, 2025, 2024 and 2023, respectively.

As required by accounting rules, we review any goodwill and/or indefinite-lived intangible assets recorded on our balance sheet for impairment at least annually as of July 31 or more frequently if facts and circumstances indicate that it is more likely than not that the fair value of a reporting unit that has goodwill is less than its carrying value. Factors that may be considered a change in circumstances indicating that the carrying value of our goodwill might not be recoverable include a significant decline in projections of future cash flows and lower future growth rates in our industry. If the assets have been determined to be abandoned or not recoverable, we are required to record a charge reflecting impairment of the assets. We review long-lived assets for impairment whenever events or changes in circumstances indicate the carrying amount may not be recoverable. We consider a project asset commercially viable and recoverable if such project asset is anticipated to be sellable for a profit, or generates positive cash flows, in excess of the cost of the project asset once it is either fully developed or fully constructed. When a project asset is not considered commercially viable or costs are not deemed to be recoverable, we are required to record a charge reflecting the impairment of such project asset.

***Our Advanced Technologies contracts are subject to the risk of termination by the contracting party and we may not realize the full amounts allocated under some contracts due to the lack of Congressional appropriations or early termination.***

A portion of our revenues has been derived from long-term cooperative agreements and other contracts with the DOE and other U.S. government agencies. These agreements are important to the continued development of our technology and our products. We also contract with private sector companies under certain Advanced Technologies contracts to develop strategically important and complementary offerings.

Generally, our privately funded Advanced Technologies contracts, including our Joint Development Agreement with EMTEC, our contracted demonstration projects undertaken with EMTEC or other ExxonMobil affiliates, and our government research and development contracts are subject to the risk of termination at the convenience of the contracting party and may contain certain milestones and deliverables which we may not be able to meet if actual results or the timing of deliverables differ materially from our original estimates or contractually agreed timelines. Furthermore, with respect to government-funded contracts, irrespective of the amounts allocated by the contracting agency, such contracts are subject

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to annual Congressional appropriations and the results of government or agency sponsored reviews and audits of our cost reduction projections and efforts. We can only receive funds under government-funded contracts ultimately made available to us annually by Congress as a result of the appropriations process. Accordingly, we cannot be sure whether we will receive the full amounts awarded under our privately funded, government research and development or other contracts. Termination of the contracts or failure to receive the full amounts under any of our Advanced Technologies contracts could materially and adversely affect our business prospects, results of operations and financial condition.

***Utility companies may resist the adoption of distributed generation and could impose customer fees or interconnection requirements on our customers that could make our products less desirable.***

***Investor-owned utilities may resist adoption of distributed generation fuel cell plants as such plants are disruptive to the utility business model that primarily utilizes large central generation power plants and associated transmission and distribution. On-site distributed generation that is on the customer-side of the electric meter competes with the utility. Distributed generation on the utility-side of the meter generally has power output that is significantly less than central generation power plants and may be perceived by the utility as too small to materially impact its business, limiting its interest. Additionally, perceived technology risk may limit utility interest in stationary fuel cell power plants.***

***Utility companies commonly charge fees to larger, industrial customers for disconnecting from the electric grid or for having the capacity to use power from the electric grid for back up purposes. These fees could increase the cost to our customers of using our SureSource products and could make our products less desirable, thereby harming our business prospects, results of operations and financial condition.***

#### We depend on third party suppliers for the development and timely supply of key raw materials and components for our products.
We use various raw materials and components to construct a fuel cell module, including nickel and stainless steel, that are critical to our manufacturing process. We also rely on third-party suppliers for the BOP components in our products. Suppliers must undergo a qualification process, which takes four to twelve months. We continually evaluate new suppliers, and we are currently qualifying several new suppliers. There are a limited number of suppliers for some of the key components of our products. In addition, to the extent the processes that our suppliers use to manufacture components are proprietary, we may be unable to obtain comparable components from alternative suppliers, all of which could harm our business prospects, results of operations and financial condition. We do not know whether we will be able to maintain long-term supply relationships with our critical suppliers, or secure new long-term supply relationships on terms that will allow us to achieve our objectives, if at all. A supplier's failure to develop and supply components in a timely manner or to supply components that meet our quality, quantity or cost requirements or our technical specifications, or our inability to obtain alternative sources of these components on a timely basis or on terms acceptable to us, could each harm our ability to manufacture our products. In addition, our supply chain was adversely affected by the COVID-19 pandemic, and in the future could be adversely affected by pandemics or other widespread adverse public health events, which may create global shipping and logistics challenges. These challenges may include extended shipping lead times and pricing pressures on transportation and logistics that could adversely impact our ability to meet our production schedules and project deadlines, may result in additional and increased costs, or may otherwise adversely impact our business, results of operations and financial condition. If such events occur and we are unable to pass these costs on to our customers or timely complete projects, we may experience reduced revenue and other adverse impacts on our business, results of operations and financial condition.

***An increase in energy costs may materially adversely affect our business, financial condition, and results of operations.***

Our results of operations can be directly affected by volatility in the cost and availability of energy, which is subject to global supply and demand and other factors beyond our control. Higher energy costs result in increases in operating expenses at our manufacturing facilities, in the expense of shipping materials to our facilities, and in the expense of operating our projects for which we procure natural gas, all of which may in turn adversely affect our business, financial condition, and results of operations.

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***Failure to meet Environmental, Social, and Governance ("ESG") expectations or standards or to achieve our ESG goals could adversely affect our business, results of operations, financial condition, and stock price.*** 

In recent years, there has been an increased focus from stakeholders on ESG matters, including greenhouse gas emissions and climate-related risks, renewable energy, water stewardship, waste management, diversity, equality and inclusion, responsible sourcing and supply chain, human rights, and social responsibility. Given our commitment to ESG matters, we actively manage these issues and have established and publicly announced certain goals, commitments, and targets which we may refine or even expand further in the future. These goals, commitments, and targets reflect our current plans and aspirations and are not guarantees that we will be able to achieve them. Evolving stakeholder expectations and our efforts to manage these issues, report on them, and accomplish our goals present numerous operational, regulatory, reputational, financial, legal, and other risks, any of which could have a material adverse impact, including on our reputation and stock price.

Such risks and uncertainties include:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• reputational harm, including damage to our relationships with customers, suppliers, investors, governments, or other stakeholders;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• adverse impacts on our ability to sell and manufacture products;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the success of our collaborations with third parties;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• increased risk of litigation, investigations, or regulatory enforcement action;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• unfavorable ESG ratings or investor sentiment;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• diversion of resources and increased costs to control, assess, and report on ESG metrics;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• our ability to achieve our goals, commitments, and targets within the timeframes announced;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• access to and increased cost of capital; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• adverse impacts on our stock price.

Any failure, or perceived failure, to meet evolving stakeholder expectations and industry standards or achieve our ESG goals, commitments, and targets could have an adverse effect on our business, results of operations, financial condition, and stock price.

#### Risks Related to Sales of our Products
***We derive significant revenue from contracts awarded through competitive bidding processes involving substantial costs and risks. Our contracted projects may not convert to revenue, and our project awards and sales pipeline may not convert to contracts, which may have a material adverse effect on our revenue and cash flows.***

We expect a significant portion of the business that we will seek in the foreseeable future will be awarded through competitive bidding against other fuel cell technologies and other forms of power generation. The competitive bidding process involves substantial costs and a number of risks, including the significant cost and managerial time to prepare bids and proposals for contracts that may not be awarded to us and our failure to accurately estimate the resources and costs that will be required to fulfill any contract we win. In addition, following a contract award, we may encounter significant expense, delay or contract modifications or award revocation as a result of our competitors protesting or challenging contracts awarded to us in competitive bidding. Our failure to compete effectively in this procurement environment could adversely affect our revenue and/or profitability.

Some of the project awards we receive and orders we accept from customers require certain conditions or contingencies (such as permitting, interconnection, financing or regulatory approval) to be satisfied, some of which are outside of our control. Certain awards are cancelable or revocable at any time prior to contract execution. The time periods from receipt of an award to execution of a contract, or receipt of a contract to installation may vary widely and are determined by a number of factors, including the terms of the award, governmental policies or regulations that go into effect after the award, the terms of the customer contract and the customer's site requirements. These same or similar conditions and contingencies may be required by financiers in order for us to draw on financing to complete a project. If these conditions or contingencies are not satisfied, or changes in laws affecting project awards occur, or awards are revoked or cancelled, project awards may not convert to contracts, and installations may be delayed or canceled. This could have an adverse impact on our revenue and cash flow and our ability to complete construction of a project.

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***We have signed product sales contracts, EPCs, PPAs and long-term service agreements with customers subject to contractual, technology, operating, commodity (i.e. natural gas) and fuel pricing risks as well as market conditions that may negatively affect our operating results.***

We apply the transfer of control over time revenue recognition method under Accounting Standards Codification Topic 606: Revenue from Contracts with Customers to certain service contracts which are subject to estimates. On an annual basis, we perform a review process to help ensure that total estimated contract costs include estimates of costs to complete that are based on the most recent available information. The amount of costs incurred on a cumulative to date basis as a function of estimated costs at completion is applied to contract consideration to determine the cumulative revenue that should be recognized to date.

We have contracted under long-term service agreements with certain customers to provide service on our products over terms of up to 20 years. Under the provisions of these contracts, we provide services to maintain, monitor, and repair customer power plants to meet minimum operating levels. Pricing for service contracts is based upon estimates of future costs including future module exchanges. While we have conducted tests to determine the overall life of our products, we have not run certain of our products over their projected useful life or in all potential conditions prior to large scale commercialization. As a result, we cannot be sure that these products will last to their expected useful life or perform as anticipated in all conditions, which could result in warranty claims, performance penalties, maintenance and module replacement costs in excess of our estimates, losses on service contracts and/or a negative perception of our products. As a result of our products' lack of maturity, we have incurred and may continue to incur charges for warranty claims, performance penalties, maintenance and module replacement costs in excess of our estimates and losses on service contracts. Each of these risks may be material under these contracts and, as a result, we have experienced and may continue to experience diminished returns and we have been required to and may be required, in the future, to write off all or a portion of our capitalized costs in these project assets.

In certain instances, we have executed PPAs with the utility, end-user of the power or site host of the fuel cell power plant. We may then sell the PPA and power plant to a project investor or retain the project and collect revenue from the sale of power over the term of the PPA, recognizing electricity revenue as power is generated and sold. Our growing portfolio of project assets used to generate and sell power under PPAs and utility tariff programs exposes us to operational risks and uncertainties, including, among other things, lost revenues due to prolonged outages, replacement equipment costs, risks associated with facility start-up operations, failures in the availability or acquisition of fuel (including natural gas and renewable natural gas), the impact of severe adverse weather conditions, natural disasters, terrorist attacks, cybersecurity attacks, risks of property damage or injury from energized equipment, availability of adequate water resources and ability to intake and discharge water, use of new or unproven technology, fuel commodity price risk and fluctuating market prices, and lack of alternative available fuel sources.

Our ability to proceed with projects under development and complete construction of projects on schedule and within budget may be adversely affected by escalating costs for materials and fuel (including natural gas and renewable natural gas), supply chain and logistics challenges, tariffs, labor and regulatory compliance, inability to obtain necessary permits, interconnections or other approvals on acceptable terms or on schedule and by other factors. If any development project or construction is not completed, is delayed or is subject to cost overruns, we could become obligated to make delay or termination payments or become obligated for other damages under contracts, experience diminished returns or be required to write off all or a portion of our capitalized costs in the project. Each of these events could have an adverse effect on our business, financial condition, results of operations and prospects.

***We extend product warranties for our products, which products are complex and could contain defects and may not operate at expected performance levels, which could impact sales and market adoption of our products, affect our operating results or result in claims against us.***

We develop complex and evolving products, and we continue to advance the capabilities of our fuel cell stacks. We produce carbonate fuel stacks with a 7-year cell design life. We provide product warranties for a specific period of time against manufacturing or performance defects. We accrue for warranty costs based on historical warranty claim experience; however, actual future warranty expenses may be greater than we have assumed in our estimates. Issues have been and may continue to be found in existing or new products including, but not limited to, module decay rates which have exceeded and may continue to exceed design expectations. This has resulted and may continue to result in a delay in recognition or loss of revenues and may result in loss of market share or failure to achieve broad market acceptance. The occurrence of defects has also caused and may continue to cause us to incur significant warranty, support and repair costs

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in excess of our estimates, could divert the attention of our engineering personnel from our product development efforts, and could harm our relationships with our customers. Although we seek to limit our liability, a product liability claim brought against us, even if unsuccessful, would likely be time consuming, could be costly to defend, and may hurt our reputation in the marketplace. Our customers could also seek and obtain damages from us for their losses.

***We currently face and will continue to face significant competition, including from products using other energy sources that may be lower priced or have preferred environmental characteristics.***

We compete on the basis of our products' reliability, efficiency, environmental considerations and cost. Technological advances in alternative energy products, improvements in the electric grid or other sources of power generation that use lower priced fuel or no fuel, or other fuel cell technologies may negatively affect the development or sale of some or all of our products or make our products less economically attractive, non-competitive or obsolete prior to or after commercialization. Significant decreases in the price of alternative technologies or grid delivered electricity, or significant increases in the price of our fuels could have a material adverse effect on our business because other generation sources could be more economically attractive to consumers than our products. Additionally, in certain markets, consumers and regulators have expressed a preference for zero-carbon generating resources over fueled resources, which could adversely affect sales of our products in such markets.

Other companies, some of which have substantially greater resources than ours, are currently engaged in the development of products and technologies that are similar to, or may be competitive with, our products and technologies. Several companies in the U.S. are engaged in fuel cell development, although we are the only domestic company engaged in manufacturing and deployment of stationary carbonate fuel cells. Other emerging fuel cell technologies include small or portable proton exchange membrane fuel cells, stationary phosphoric acid fuel cells, stationary solid oxide fuel cells, and small residential solid oxide fuel cells. Any of these technologies and any of our competitors has the potential to capture market share in our target markets. There are also other potential fuel cell competitors internationally that could capture market share.

Other than fuel cell developers, we must also compete with companies that manufacture combustion-based distributed power equipment, including various engines and turbines, and have well-established manufacturing, distribution, operating and cost features. Electrical efficiency of these products can be competitive with our power plants in certain applications. Significant competition may also come from gas turbine companies and large scale solar and wind technologies.

#### Our plans are dependent on market acceptance of our products.
Our plans are dependent upon market acceptance of, as well as enhancements to, our products. Fuel cell systems represent an emerging market, and we cannot be sure that potential customers will accept fuel cells as a replacement for traditional power sources or non-fuel based power sources, hydrogen generation sources or storage. As is typical in a rapidly evolving industry, demand and market acceptance for recently introduced products and services are subject to a high level of uncertainty and risk. Since the distributed generation, hydrogen, carbon capture and storage markets are still evolving, it is difficult to predict with certainty the size of these markets and their growth rates. The development of a market for our products may be affected by many factors that are out of our control, including:

● the cost competitiveness of our fuel cell products including availability and output expectations and total cost of ownership;

● the future costs of natural gas, renewable natural gas (biofuels), and other fuels used by our fuel cell products;

● customer reluctance to try a new product;

● the market for distributed generation, hydrogen, carbon capture and storage and government policies that affect those markets;

● government incentives, mandates or other programs favoring zero carbon energy sources;

● local permitting and environmental requirements;

● customer preference for non-fuel based technologies; and

● the emergence of newer, more competitive technologies and products.

If a sufficient market fails to develop or develops more slowly than we anticipate, we may be unable to recover the losses we will have incurred in the development of our products, and we may never achieve profitability.

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***Our development timeline for bringing our solid oxide electrolysis technology to market has shifted as a result of delays in adoption of clean energy technologies generally and implementation of our recent global restructuring actions, which have re-focused our business on our core carbonate technologies. In addition, our timeline for bringing our carbon capture technology to market will be subject to conditions outside of our control.***

Due to changes in the pace of hydrogen adoption, uncertainty regarding large scale clean energy policies globally, and our global restructuring plans announced in November 2024 and June 2025, which aim to reduce operating costs, realign resources toward advancing the Company's core carbonate technologies, and protect the Company's competitive position amid slower-than-expected market investments in clean energy, we have reduced our workforce, reduced spending on product development, ceased our manufacturing capacity expansion efforts at our facility in Calgary, Canada, ceased the development of our solid oxide power generation platform and focused on demonstrating the capabilities of our solid oxide electrolysis product. With our renewed primary focus on our core carbonate technologies, the commercialization of our solid oxide electrolysis technology will be paced by market adoption of new clean energy products and our ability to contract with third-party partners to bring this solution to market. In addition, the commercialization of our carbon capture technology will be paced by the timing of the completion, commissioning and successful demonstration of the carbon capture and sequestration pilot project at the Port of Rotterdam, by our ability to negotiate and execute a definitive commercial agreement with EMTEC or another ExxonMobil affiliate with respect to the manufacture of the fuel cell modules and certain other equipment necessary for new carbon capture projects, and by market adoption of this technology. If we are unable to successfully commercialize our carbon capture technology, if the commercialization of our carbon capture technology is delayed, or if we are unable to negotiate a mutually agreeable commercial agreement with EMTEC or another ExxonMobil affiliate, then our ability to generate revenue and achieve profitability from sales of these new products will be delayed or may not occur at all. If we are unable to meet cost or performance goals with respect to our solid oxide electrolysis product or our carbon capture products once commercialized, including goals for power output, hydrogen production, rates of carbon capture, useful life and reliability (as applicable), then our ability to generate revenue and achieve profitability from sales of these new products will be delayed or may not occur at all. In addition, if we are unable to develop additional commercially viable products in the future, we may not be able to generate sufficient revenue to become profitable. The profitable commercialization of our products depends on our ability to reduce the costs of our products, and there can be no assurance that we will be able to sufficiently reduce these costs to achieve profitability.

***Our products use inherently dangerous, flammable fuels, operate at high temperatures and use corrosive carbonate material, each of which could subject our business to product liability claims.***

Our business exposes us to potential product liability claims that are inherent in products that use hydrogen. Our products utilize fuels such as natural gas and convert these fuels internally to hydrogen that is used by our products to generate electricity. Although our platforms do not combust fuels for the generation of electricity, the fuels we use are combustible and may be toxic. In addition, our molten carbonate and solid oxide electrolysis products operate at high temperatures and use corrosive carbonate material, which could expose us to potential liability claims. Although we incorporate a robust design and redundant safety features in our power plants, have established comprehensive safety, maintenance, and training programs, follow third-party certification protocols, codes and standards, and do not store natural gas or hydrogen at our power plants, we cannot guarantee that there will not be accidents. Any accidents involving our products or other hydrogen-using products could materially impede widespread market acceptance and demand for our products. In addition, we might be held responsible for damages beyond the scope of our insurance coverage. We also cannot predict whether we will be able to maintain adequate insurance coverage on acceptable terms.

#### Risks Related to Privacy, Data Protection and Cybersecurity
***Our reliance on information technology continues to grow, and disruptions, failures, or security breaches could materially impact both our operations and the operations of our power plant platforms. Furthermore, the rise in information technology security threats and increasingly sophisticated cybercrime presents ongoing risks to our systems, networks, products, and services.***

Our operations depend on information technology networks and systems, including the Internet, for processing, transmitting, and storing electronic and financial data. These resources support a range of business processes and activities, such as monitoring and operating power plants owned by us or our customers, and managing production, manufacturing, financial, logistics, sales, marketing, and administrative functions. Furthermore, we collect and retain data that is sensitive both to our organization and to third parties. The secure operation of information technology networks and systems, as

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well as the responsible processing and maintenance of this data, are essential to our business operations and strategic objectives.

Our information technology infrastructure is essential for communication with employees, customers, suppliers, and other parties, as well as for meeting regulatory, legal, and tax obligations and operating our fuel cell power plants. Several of these information technology systems are managed by third-party vendors or involve shared service centers, making them potentially vulnerable to damage, disruption, or shutdown from events such as software or database upgrades, power outages, hardware malfunctions, computer viruses, cyberattacks, emerging technology risks, telecom failures, user mistakes, natural disasters, terrorist actions, or other catastrophic incidents. If any of our key information technology systems were severely affected and our disaster recovery or business continuity measures did not resolve the situation quickly, it may harm our product sales, financial health, and operational results. We may also face delays in reporting financial data or encounter disruptions in fuel cell plant operations, which could lead to performance penalties under our customer contracts.

Information technology security threats — from user error to cybersecurity attacks designed to gain unauthorized access to our systems, networks and data — are increasing in frequency and sophistication. Cybersecurity attacks may range from random attempts to coordinated and targeted attacks, including sophisticated computer crime and advanced persistent threats. These threats pose a risk to the security of our systems and networks and the confidentiality, availability and integrity of our data. Cybersecurity attacks could also include attacks targeting customer data or the security, integrity and/or reliability of the hardware and software installed in our products. We could experience cybersecurity attacks that result in unauthorized parties gaining access to our information technology systems, our networks, and/or our power plants. However, to date, no cybersecurity attack has resulted in any material loss of data, interrupted our day-to-day operations or had a material impact on our financial condition, results of operations or liquidity. While we actively manage information technology security risks within our control, there can be no assurance that such actions will be sufficient to mitigate all potential risks to our systems, networks and data. In addition to the direct potential financial risk as we continue to build, own and operate generation assets, other potential consequences of a material cybersecurity attack include reputational damage, litigation with third parties, disruption to systems, unauthorized release of confidential or otherwise protected information, corruption of data, diminution in the value of our investment in research, development and engineering, and increased cybersecurity protection and remediation costs, which in turn could adversely affect our competitiveness, results of operations and financial condition. The amount of insurance coverage we maintain may be inadequate to cover claims or liabilities relating to a cybersecurity attack.

Additionally, the legal and regulatory environment surrounding information security and privacy in the U.S. and international jurisdictions is constantly evolving. Violation or non-compliance with any of these laws or regulations, contractual requirements relating to data security and privacy, or our own privacy and security policies, either intentionally or unintentionally, or through the acts of intermediaries could have a material adverse effect on our brand, reputation, business, financial condition and results of operations, as well as subject us to significant fines, litigation losses, third-party damages and other liabilities.

#### Tax, Accounting, Compliance and Regulatory Risks
***We are required to maintain effective internal control over financial reporting. In a prior fiscal year, our management identified a material weakness in our internal control over financial reporting. If other control deficiencies are identified in the future, we may not be able to report our financial results accurately, prevent fraud or file our periodic reports in a timely manner, which may adversely affect investor confidence in our Company and, as a result, the value of our common stock.***

We are required, pursuant to Section 404 of the Sarbanes-Oxley Act ("Section 404"), to furnish a report by management on, among other things, the effectiveness of our internal control over financial reporting. Complying with Section 404 requires a rigorous compliance program as well as adequate time and resources. We may not be able to complete our internal control evaluation, testing and any required remediation in a timely fashion. Additionally, if we identify one or more material weaknesses in our internal control over financial reporting, we will not be able to assert that our internal controls are effective. A material weakness is a deficiency, or combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material misstatement of our annual or interim financial statements will not be prevented or detected on a timely basis.

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In a prior fiscal year, our management identified a material weakness in our internal control over financial reporting, which has been remediated. We cannot be certain that other material weaknesses and control deficiencies will not occur in the future. If material weaknesses are identified in the future, or if we are not able to comply with the requirements of Section 404 in a timely manner, our reported financial results could be materially misstated and we could be subject to investigations or sanctions by regulatory authorities, which would require additional financial and management resources, and the value of our common stock could decline.

To the extent we identify future weaknesses or deficiencies, there could be material misstatements in our consolidated financial statements and we could fail to meet our financial reporting obligations. As a result, our ability to obtain additional financing on favorable terms or at all could be materially and adversely affected which, in turn, could materially and adversely affect our business, our financial condition and the value of our common stock. If we are unable to assert that our internal control over financial reporting is effective in the future, investor confidence in the accuracy and completeness of our financial reports could be further eroded, which would have a material adverse effect on the price of our common stock.

***Our results of operations could vary as a result of changes to our accounting policies or the methods, estimates and judgments we use in applying our accounting policies.***

The methods, estimates and judgments we use in applying our accounting policies have a significant impact on our results of operations. Such methods, estimates and judgments are, by their nature, subject to substantial risks, uncertainties and assumptions, and factors may arise over time that could lead us to reevaluate our methods, estimates and judgments.

In future periods, management will continue to reevaluate its estimates for contract margins, service agreements, loss accruals, warranty, performance guarantees, liquidated damages, inventory valuation allowances and allowance for doubtful accounts. Changes in those estimates and judgments could significantly affect our results of operations and financial condition. We will also adopt changes required by the Financial Accounting Standards Board and the SEC.

#### We may be affected by environmental and other governmental regulation.
We are subject to various federal, state and local laws and regulations relating to, among other things, land use, safe working conditions, handling and disposal of hazardous and potentially hazardous substances and emissions of carbon dioxide and pollutants into the atmosphere. Our business exposes us to the risk of harmful substances escaping into the environment, resulting in personal injury or loss of life, damage to or destruction of property, and natural resource damage. Depending on the nature of the claim, our current insurance policies may not adequately reimburse us for costs incurred in settling environmental damage claims, and in some instances, we may not be reimbursed at all. In addition, it is possible that industry-specific laws and regulations will be adopted covering matters such as transmission scheduling, distribution, emissions, and the characteristics and quality of our products, including installation and servicing. These regulations could limit the growth in the use of carbonate fuel cell products, decrease the acceptance of fuel cells as a commercial product and increase our costs and, therefore, the price of our products. We believe that our businesses are operating in compliance in all material respects with applicable environmental laws; however, these laws and regulations have changed frequently in the past and it is reasonable to expect additional and more stringent changes in the future. Accordingly, compliance with existing or future laws and regulations could have a material adverse effect on our business prospects, results of operations and financial condition. If we fail to comply with applicable environmental laws and regulations, governmental authorities may seek to impose fines and penalties on us or to revoke or deny the issuance or renewal of operating permits and private parties may seek damages from us. Under those circumstances, we might be required to curtail or cease operations, conduct site remediation or other corrective action, or pay substantial damage claims.

Given that some of our product configurations run on fossil fuels, we may be negatively impacted by CO<sub>2-</sub>related changes in applicable laws, regulations, ordinances, rules or the requirements of the incentive programs on which we and our customers currently rely. Changes in any of the laws, regulations, ordinances or rules that apply to our installations and new technology could make it illegal or more costly for us or our customers to install and operate our products at particular sites. Additionally, our customers and potential customers' energy procurement policies may prohibit or limit their willingness to procure our products. Our business prospects may be negatively impacted if we are prevented from completing new installations or our installations become more costly as a result of laws, regulations, ordinances, or rules applicable to our products, or by our customers' and potential customers' energy procurement policies.

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In addition, certain of our products benefit from federal, state and local governmental incentives, mandates or other programs promoting clean energy generation. Any changes to or termination of these programs could reduce demand for our products, impair sales financing, and adversely impact our business, financial condition and results of operations.

#### A negative government audit could result in an adverse adjustment of our revenue and costs and could result in civil and criminal penalties.
Government agencies, such as the Defense Contract Audit Agency, routinely audit and investigate government contractors. These agencies review a contractor's performance under its contracts, cost structure, and compliance with applicable laws, regulations, and standards. If the agencies determine through these audits or reviews that we improperly allocated costs to specific contracts, they will not reimburse us for these costs. Therefore, an audit could result in adjustments to our revenue and costs.

Further, although we have internal controls in place to oversee our government contracts, no assurance can be given that these controls are sufficient to prevent isolated violations of applicable laws, regulations and standards. If the agencies determine that we or one of our subcontractors engaged in improper conduct, we may be subject to civil or criminal penalties and administrative sanctions, payments, fines, and suspension or prohibition from doing business with the government, any of which could materially affect our results of operations and financial condition.

***Exports of certain of our products are subject to various export control regulations and may require a license or permission from the U.S. Department of State, the U.S. Department of Energy or other agencies.***

As an exporter, we must comply with various laws and regulations relating to the export of products, services and technology from the U.S. and with the laws and regulations of other countries having jurisdiction over our operations. We are subject to export control laws and regulations, including the International Traffic in Arms Regulation, the Export Administration Regulation, and the Specially Designated Nationals and Blocked Persons List, which generally prohibit U.S. companies and their intermediaries from exporting certain products, importing materials or supplies, or otherwise doing business with restricted countries, businesses or individuals, and require companies to maintain certain policies and procedures to ensure compliance. We are also subject to the Foreign Corrupt Practices Act, which prohibits improper payments to foreign governments and their officials by U.S. and other business entities. Under these laws and regulations, U.S. companies may be held liable for their actions and actions taken by their strategic or local partners or representatives. If we, or our intermediaries, fail to comply with the requirements of these laws and regulations, or similar laws of other countries, governmental authorities in the United States or elsewhere, as applicable, could seek to impose civil and/or criminal penalties, which could damage our reputation and have a material adverse effect on our business, financial condition and results of operations.

***Our business currently benefits from the availability of rebates, tax credits and other financial programs and incentives, and changes to such benefits could cause our revenue to decline and harm our financial results.***

We utilize governmental rebates, tax credits, and other financial incentives to lower the effective price of our products to customers including in the U.S. and South Korea. The U.S. federal government and some state and local governments provide incentives to current and future end users and purchasers of our solutions in the form of rebates, tax credits and other financial incentives, such as payments for renewable energy credits associated with renewable energy generation. Our solutions have qualified for tax exemptions, incentives, or other customer incentives in many states. Some states have utility procurement programs, Renewables Portfolio Standards ("RPSs") or Clean Energy Standards ("CESs") for which our technologies are eligible; however, our solutions may not be eligible for other RPSs and CESs, particularly when fueled in whole or in part with natural gas.

Under the Inflation Reduction Act of 2022 (the "IRA"), the U.S. federal government offers certain federal tax benefits, including the Production Tax Credit under Section 45 of the Internal Revenue Code (the "PTC") and the ITC, both of which were succeeded by "technology-neutral" versions set forth in Sections 45Y and 48E, respectively. After December 31, 2024, new fuel cell systems operating on natural gas or a non-zero carbon fuel became ineligible for the ITC under the IRA, except to the extent eligible fuel cell projects or equipment were properly safe harbored prior to December 31, 2024, under the applicable federal tax guidance rules. On July 4, 2025, the U.S. federal government enacted the OBBBA, which restored the federal ITC, which was applicable prior to the enactment of the IRA, for fuel cell projects beginning construction after December 31, 2025, at a 30% rate through 2033, regardless of the level of emissions from the fuel cell facility. These federal tax benefits under both the IRA and the OBBBA have certain legal and operational requirements.

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There may be uncertainty as to how such requirements promulgated under the IRA and the OBBBA are interpreted. If IRS guidance regarding implementation of the IRA or the OBBBA is viewed by potential customers or investors as unclear, tax credit financing may be delayed or diminished, harming our ability to secure financing for customers. Changes in federal tax benefits over time also may affect our future performance.

Some countries outside the U.S. also provide incentives to current and future end users and purchasers of solutions like ours. For example, in South Korea, RPSs, Clean Hydrogen Portfolio Standard and CESs are in place to promote the use of renewable, low- or zero-carbon power generation. Changes in the availability of rebates, tax credits, and other financial programs and incentives could reduce demand for our products and adversely impact our business results. Additionally, these incentives and procurement programs or obligations may expire on a particular date, end when the allocated funding is exhausted, or be reduced or terminated as a matter of regulatory or legislative policy. The continuation of these programs and incentives depends upon continued political support of the fuel cell industry.

#### Risks Related to Our Need for Additional Capital
***We will need to raise additional capital, and such capital may not be available on acceptable terms, if at all. If we do raise additional capital utilizing equity, existing stockholders will suffer dilution. If we do not raise additional capital, our business could fail or be materially and adversely affected.***

The implementation of our business plan and strategy requires additional capital to fund operations as well as investment by us in project assets. If we are unable to raise additional capital in the amounts required, on terms acceptable to us, or at all, we will not be able to successfully implement our business plan and strategy. Our capital-intensive business model increases the risk that we will not be able to successfully implement our plans if we do not raise additional capital in the amounts required.

In addition, if we raise additional funds through further issuances of our common stock, or securities convertible into or exchangeable for shares of our common stock, into the public market, including shares of our common stock issued upon exercise of options or warrants, holders of our common stock could suffer significant dilution, and any new equity securities we issue could have rights, preferences and privileges superior to those of our then-existing capital stock. Any debt financing secured by us in the future could involve restrictive covenants relating to our capital raising activities and other financial and operational matters, which may make it more difficult for us to obtain additional capital and to pursue business opportunities. If we cannot raise additional funds when we need them, our business and prospects could fail or be materially and adversely affected. In addition, if additional funds are not secured in the future, we will have to modify, reduce, defer or eliminate parts of our present and anticipated future projects, or sell some or all of our assets.

#### Risks Related to our Intellectual Property and Technology Licenses

#### We depend on our intellectual property, and our failure to protect that intellectual property could adversely affect our future growth and success.
Failure to protect our existing intellectual property rights may result in the loss of our exclusivity or the right to use our technologies. If we do not adequately ensure our freedom to use certain technology, we may have to pay others for rights to use their intellectual property, pay damages for infringement, misappropriation, or other violation, or be enjoined from using such intellectual property. We rely on patent, trade secret, trademark and copyright law to protect our intellectual property.

We previously licensed certain of our carbonate fuel cell manufacturing intellectual property to POSCO Energy Co., Ltd. ("POSCO Energy") on an exclusive basis in the South Korean and broader Asian markets, and pursuant to the terms of our Settlement Agreement with POSCO Energy, we have done so again, but this time on a limited, non-exclusive basis to enable module replacement to POSCO Energy's existing long-term service agreement customers only. In addition, effective as of June 11, 2019, we entered into a license agreement with EMTEC to facilitate the further development of our carbon capture platform (the "EMTEC License Agreement"). Pursuant to the EMTEC License Agreement, we granted EMTEC and its affiliates a non-exclusive, worldwide, fully-paid, perpetual, irrevocable, non-transferable license and right to use our patents filed on or before April 30, 2021, and any data, know-how, improvements, equipment designs, methods, processes and the like provided directly by us or our affiliates to EMTEC or its affiliates under any agreement or otherwise, on or before April 30, 2021, to the extent it is useful to research, develop and commercially exploit carbonate fuel cells in applications in which the fuel cells concentrate carbon dioxide from external industrial and power sources and for any

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other purpose attendant thereto or associated therewith. Such right and license is sublicensable to third parties performing work for or with EMTEC or its affiliates, but is not otherwise sublicensable. Furthermore, on November 5, 2019, we entered into the Joint Development Agreement, pursuant to which we agreed to grant EMTEC and its affiliates a worldwide, non-exclusive, royalty-free, irrevocable, perpetual, sub-licensable, non-transferable (subject to certain exceptions) right and license to practice certain Company background intellectual property (to the extent not already licensed pursuant to the EMTEC License Agreement) for new carbonate fuel cell technology in carbon capture applications and hydrogen applications. We depend on POSCO Energy and EMTEC to also protect our intellectual property rights, but we cannot assure you that POSCO Energy or EMTEC will do so.

As of October 31, 2025, we (excluding our subsidiaries) had 152 U.S. patents and 319 patents in other jurisdictions covering our fuel cell technology (in certain cases covering the same technology in multiple jurisdictions), with patents directed to various aspects of our carbonate technology, solid oxide fuel cell technology, proton exchange membrane fuel cell technology and applications thereof. As of October 31, 2025, we also had 29 patent applications pending in the U.S. and 79 patent applications pending in other jurisdictions. As of October 31, 2025, our subsidiary, Versa Power Systems, Ltd. ("Versa"), had 19 U.S. patents and 63 international patents covering solid oxide fuel cell technology (in certain cases covering the same technology in multiple jurisdictions). As of October 31, 2025, Versa also had 13 pending U.S. patent applications and 24 patent applications pending in other jurisdictions. In addition, as of October 31, 2025, our subsidiary, FuelCell Energy Solutions, GmbH, had license rights to 2 U.S. patents and 7 patents outside the U.S. (in certain cases covering the same technology in multiple jurisdictions) for carbonate fuel cell technology licensed from Fraunhofer IKTS.

Some of our intellectual property is not covered by any patent or patent application and includes trade secrets and other confidential and/or proprietary know-how, particularly as it relates to our manufacturing processes and engineering design. In addition, some of our intellectual property includes technologies and processes that may be similar to the patented technologies and processes of third parties. If we are found to be infringing, misappropriating or otherwise violating third-party intellectual property, we do not know whether we will be able to obtain licenses to use such intellectual property on acceptable terms, if at all. Our patent position is subject to complex factual and legal issues that may give rise to uncertainty as to the validity, scope, and enforceability of a particular patent.

We cannot assure you that any of the U.S. or international patents owned by us (including our subsidiaries) or other patents that third parties license to us will not be invalidated, circumvented, challenged, rendered unenforceable or licensed to others, or that any of our owned or licensed pending or future patent applications will be issued with the breadth of claim coverage sought by us or our licensors, if issued at all. In addition, effective patent, trademark, copyright and trade secret protection may be unavailable, limited or not applied for in certain foreign countries.

We also seek to protect our proprietary intellectual property, including intellectual property that may not be patented or able to be patented, in part by confidentiality agreements and, if applicable, inventors' rights agreements with our subcontractors, vendors, suppliers, consultants, strategic business associates and employees. We cannot assure you that these agreements will not be breached, that we will have adequate remedies for any breach or that such persons or institutions will not assert rights to intellectual property arising out of these relationships. Certain of our intellectual property has been licensed to us on a non-exclusive basis from third parties that may also license such intellectual property to others, including our competitors. If our licensors are found to be infringing, misappropriating or otherwise violating third-party intellectual property, we do not know whether we will be able to obtain licenses to use the intellectual property licensed to us on acceptable terms, if at all.

If necessary or desirable, we may seek extensions of existing licenses or further licenses under the patents or other intellectual property rights of others. However, we can give no assurances that we will obtain such extensions or further licenses or that the terms of any offered licenses will be acceptable to us. The failure to obtain a license from a third party for intellectual property that we use at present could cause us to incur substantial liabilities, and to suspend the manufacture or shipment of products or our use of processes requiring the use of that intellectual property.

While we are not currently engaged in any material intellectual property litigation, we could become subject to lawsuits in which it is alleged that we have infringed, misappropriated or otherwise violated the intellectual property rights of others or commence lawsuits against others who we believe are infringing, misappropriating or otherwise violating our rights or violating their agreements to protect our intellectual property. Our involvement in intellectual property litigation could result in significant expense to us, adversely affecting the development of sales of the challenged product or intellectual property and diverting the efforts of our technical and management personnel, whether or not that litigation is resolved in our favor.

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#### The U.S. government has certain rights relating to our intellectual property, including the right to restrict or take title to certain patents.
Multiple U.S. patents that we own have resulted from government-funded research and are subject to the risk of exercise of "march-in" rights by the government. March-in rights refer to the right of the U.S. government or a government agency to exercise its non-exclusive, royalty-free, irrevocable worldwide license to any technology developed under contracts funded by the government if the contractor fails to continue to develop the technology. These "march-in" rights permit the U.S. government to take title to these patents and license the patented technology to third parties if the contractor fails to utilize the patents.

#### Risks Related to Our Common and Preferred Stock
***Our stock price has been and could remain volatile.*** 

The market price for our common stock has been and may continue to be volatile and subject to extreme price and volume fluctuations in response to market and other factors, including the following, some of which are beyond our control:

● failure to meet commercialization milestones;

● failure to win contracts through competitive bidding processes, or the loss of project awards previously announced or anticipated prior to entering into definitive contracts;

● the loss of a major customer or a contract;

● variations in our quarterly operating results from the expectations of securities analysts or investors;

● downward revisions in securities analysts' estimates or changes in general market conditions;

● changes in the securities analysts that cover us or failure to regularly publish reports;

● announcements of technological innovations or new products or services by us or our competitors;

● announcements by us or our competitors of significant acquisitions, strategic partnerships, joint ventures or capital commitments;

● additions or departures of key personnel;

● investor perception of our industry or our prospects;

● insider selling or buying;

● demand for our common stock;

● dilution from issuances of our common stock;

● general market trends or preferences for non-fueled resources;

● pandemics or any public health or safety issues in the regions where we operate;

● general technological or economic trends; and

● changes in the United States or foreign political environment and the passage of laws, including, tax, environmental or other laws, affecting the product development business.

The closing price of our common stock on December 15, 2025 was $8.36 per share. There can be no assurance that the current stock price will be maintained, and it is possible that our stock price could drop significantly. In the past, following periods of volatility in the market price of their stock, companies have been the subject of securities class action litigation. If we become involved in securities class action litigation in the future, it could result in substantial costs and diversion of management's attention and resources and could harm our stock price, business prospects, results of operations and financial condition.

***Our failure to meet the continued listing standards of The Nasdaq Global Market could result in a delisting of our common stock, which could limit investors' ability to make transactions in our common stock and subject us to additional trading restrictions.***

Our common stock is listed on The Nasdaq Global Market, which imposes continued listing requirements with respect to listed securities, including a minimum bid price requirement. During fiscal year 2024, we received written notice from the Listing Qualifications Department of The Nasdaq Stock Market ("Nasdaq") notifying us that we were not in compliance with Nasdaq's continued listing standards. While we have subsequently regained compliance with such standards, there can be no assurance that we will be able to maintain compliance with the Nasdaq listing requirements, including the minimum bid price requirement. If we fail to maintain compliance with the minimum bid price requirement or to meet the other applicable continued listing requirements in the future and Nasdaq determines to delist our common stock, the

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delisting could adversely affect the market price and liquidity of our common stock, reduce our ability to raise additional capital and result in operational challenges and damage to investor relations and market reputation.

***Future sales of substantial amounts of our common stock could affect the market price of our common stock.***

Future sales of substantial amounts of our common stock, or securities convertible into or exchangeable for shares of our common stock, into the public market, including shares of our common stock issued upon exercise of options or warrants, or perceptions that those sales could occur, could adversely affect the prevailing market price of our common stock and our ability to raise capital in the future.

#### Provisions of Delaware and Connecticut law and of our certificate of incorporation and by-laws may make a takeover more difficult.
Provisions in our Certificate of Incorporation, as amended ("Certificate of Incorporation"), and Third Amended and Restated By-Laws ("By-laws") and in Delaware and Connecticut corporate law may make it difficult and expensive for a third-party to pursue a tender offer, change in control or takeover attempt that is opposed by our management and board of directors. These anti-takeover provisions could substantially impede the ability of public stockholders to benefit from a change in control or change in our management and Board of Directors.

***Our By-laws provide that the Court of Chancery of the State of Delaware is the exclusive forum for substantially all disputes between us and our stockholders, which could limit our stockholders' ability to obtain a judicial forum deemed favorable by the stockholder for disputes with us or our directors, officers or employees.***

Our By-laws provide that the Court of Chancery of the State of Delaware is the exclusive forum for any derivative action or proceeding brought on our behalf, any action asserting a breach of fiduciary duty, any action asserting a claim against us arising pursuant to the Delaware General Corporation Law, our Certificate of Incorporation or our By-laws, any action to interpret, apply, enforce, or determine the validity of our Certificate of Incorporation or By-laws, or any action asserting a claim against us that is governed by the internal affairs doctrine. The choice of forum provision may limit a stockholder's ability to bring a claim in a judicial forum that the stockholder finds favorable for disputes against us or our directors, officers or other employees, which may discourage such lawsuits against us and our directors, officers and other employees. Alternatively, if a court were to find the choice of forum provision contained in our By-laws to be inapplicable or unenforceable in such an action, we may incur additional costs associated with resolving such action in other jurisdictions, which could adversely affect our business and financial condition.

#### The rights of our Series B Preferred Stock could negatively impact our cash flows and dilute the ownership interest of our stockholders.
The terms of our Series B Preferred Stock also provide rights to their holders that could negatively impact us. Holders of the Series B Preferred Stock are entitled to receive cumulative dividends at the rate of $50 per share per year, payable either in cash or in shares of our common stock. To the extent the dividend is paid in shares of our common stock, additional issuances could be dilutive to our existing stockholders and the sale of those shares could have a negative impact on the price of our common stock. A share of our Series B Preferred Stock may be converted at any time, at the option of the holder, into 0.0197 shares of our common stock (which is equivalent to an initial conversion price of $50,760 per share), plus cash in lieu of fractional shares. Furthermore, the conversion rate applicable to the Series B Preferred Stock is subject to additional adjustment upon the occurrence of certain events.

#### The Series B Preferred Stock ranks senior to our common stock with respect to payments upon liquidation, dividends, and distributions.
The rights of the holders of our Series B Preferred Stock rank senior to our obligations to our common stockholders. Upon our liquidation, the holders of Series B Preferred Stock are entitled to receive $1,000.00 per share plus all accumulated and unpaid dividends (the "Liquidation Preference"). Until the holders of Series B Preferred Stock receive the Liquidation Preference with respect to their shares of Series B Preferred Stock in full, no payment will be made on any junior shares, including shares of our common stock. The existence of senior securities such as the Series B Preferred Stock could have an adverse effect on the value of our common stock.

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**General Risk Factors**

***Litigation could expose us to significant costs and adversely affect our business, financial condition, and results of operations.***

We are, or may become, party to various lawsuits, arbitrations, mediations, regulatory proceedings and claims, which may include lawsuits, arbitrations, mediations, regulatory proceedings or claims relating to commercial liability, product recalls, product liability, product claims, employment matters, environmental matters, breach of contract, intellectual property, indemnification, stockholder suits, derivative actions or other aspects of our business. Litigation (including the other types of proceedings identified above) is inherently unpredictable, and although we may believe we have meaningful defenses in these matters, we may incur judgments or enter into settlements of claims that could have a material adverse effect on our business, financial condition, and results of operations. The costs of responding to or defending litigation may be significant and may divert the attention of management away from our strategic objectives. There may also be adverse publicity associated with litigation that may decrease customer confidence in our business or our management, regardless of whether the allegations are valid or whether we are ultimately found liable.

#### Financial markets worldwide have experienced heightened volatility and instability which may have a material adverse impact on our Company, our customers and our suppliers.
Financial market volatility can affect the debt, equity and project finance markets. This may impact the amount of financing available to all companies, including companies with substantially greater resources, better credit ratings and more successful operating histories than ours. It is impossible to predict future financial market volatility and instability and the impact on our Company, and it may have a materially adverse effect on us for a number of reasons, such as:

● The long-term nature of our sales cycle can require long lead times between application design, order booking and product fulfillment. For such sales, we often require substantial cash down payments in advance of delivery. For our generation business, we must invest substantial amounts in application design, manufacture, installation, commissioning and operation, which amounts are returned through energy sales over long periods of time. Our growth strategy assumes that financing will be available for us to finance working capital or for our customers to provide down payments and to pay for our products. Financial market issues may delay, cancel or restrict the construction budgets and funds available to us or our customers for the deployment of our products and services.

● Projects using our products are, in part, financed by equity investors interested in tax benefits, as well as by the commercial and governmental debt markets. The significant volatility in the U.S. and international stock markets causes significant uncertainty and may result in an increase in the return required by investors in relation to the risk of such projects.

● If we, our customers or our suppliers cannot obtain financing under favorable terms, our business may be negatively impacted.

***Weakness in the economy and other conditions affecting the financial stability of our customers could negatively impact future sales of our products and our results of operations.***

Our products require a long-term investment from our customers. Global inflationary pressures, particularly in the United States, have increased recently to levels not seen in recent years. Should our customers be impacted by these pressures, it could result in delays in purchasing decisions which could impact future sales of our products and our results of operations. In addition, downturns in the worldwide economy, due to inflation, geopolitics, major central bank policy actions including interest rate increases, public health crises, or other factors could also adversely affect our business.

***Our results of operations could be adversely affected by economic and political conditions globally and the effects of these conditions on our customers' businesses and levels of business activity.***

Economic and political events in 2023, 2024 and 2025 have altered the landscape in which we and other U.S. companies operate in a variety of ways. In response to inflationary pressures over the past several years, the U.S. Federal Reserve raised interest rates, which resulted in an increase in the cost of borrowing for us, our customers, our suppliers, and other companies relying on debt financing. World events, such as the institution of tariff measures between the U.S. and other countries and the ongoing war between Russia and Ukraine and the resulting economic sanctions, have impacted the global economy. Prolonged inflationary conditions, high and/or increased interest rates, and additional sanctions or retaliatory

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measures related to the Russia-Ukraine crisis, tariffs or other geo-political situations, could further negatively affect U.S. and international commerce and exacerbate or prolong the period of high energy prices and supply chain constraints. At this time, the extent and duration of these economic and political events and their effects on the economy and the Company are impossible to predict.

#### Our future success will depend on our ability to attract and retain qualified management, technical, and other personnel.
Our future success is substantially dependent on the services and performance of our executive officers and other key management, engineering, scientific, manufacturing and operating personnel. The loss of the services of any such personnel could materially adversely affect our business. Our ability to achieve our commercialization plans and to increase production at our manufacturing facility in the future will also depend on our ability to attract and retain additional qualified personnel, and we cannot assure you that we will be able to do so. Recruiting personnel for the fuel cell industry is competitive. Our inability to attract and retain additional qualified personnel, or the departure of key employees, could materially and adversely affect our development, commercialization and manufacturing plans and, therefore, our business prospects, results of operations and financial condition. In addition, our inability to attract and retain sufficient personnel to quickly increase production at our manufacturing facility when and if needed to meet increased demand may adversely impact our ability to respond rapidly to any new product, growth or revenue opportunities. Our inability to attract and retain sufficient qualified personnel to staff our government or third party funded research contracts may result in our inability to complete such contracts or terminations of such contracts, which may adversely impact financial conditions and results of operations.

#### We are subject to risks inherent in international operations.
Since we market our products both inside and outside the U.S., our success depends in part on our ability to secure international customers and our ability to manufacture products that meet foreign regulatory and commercial requirements in target markets, as well as the ability to provide service to our international customers. We have limited experience developing and manufacturing our products to comply with the commercial and legal requirements of international markets. In addition, we are subject to tariff regulations and requirements for export licenses, particularly with respect to the export of some of our technologies. We face numerous challenges in our international expansion, including the strain any future growth may place on our management, service and operations teams and financial infrastructure, unexpected changes in regulatory requirements and other geopolitical risks, fluctuations in currency exchange rates, longer accounts receivable requirements and collections, greater bonding and security requirements, difficulties in managing international operations, potentially adverse tax consequences, restrictions on repatriation of any earnings and the burdens of complying with a wide variety of international laws. Any of these factors could adversely affect our results of operations and financial condition.

We source raw materials and parts for our products on a global basis, which subjects us to a number of potential risks, including the impact of export duties and quotas, trade protection measures imposed by the U.S. and other countries including tariffs, potential for labor unrest, changing global and regional economic conditions and current and changing regulatory environments. Changes to these factors may have an adverse effect on our ability to source raw materials and parts in line with our current cost structure.

Although our reporting currency is the U.S. dollar, we conduct our business and incur costs in the local currency of most countries in which we operate. As a result, we are subject to currency translation and transaction risk. Changes in exchange rates between foreign currencies and the U.S. dollar could affect our net sales and cost of sales and could result in exchange gains or losses. We cannot accurately predict the impact of future exchange rate fluctuations on our results of operations.

We could also expand our business into new and emerging markets, many of which have an uncertain regulatory environment relating to currency policy. Conducting business in such markets could cause our exposure to changes in exchange rates to increase, due to the relatively high volatility associated with emerging market currencies and potentially longer payment terms for our proceeds. Our ability to hedge foreign currency exposure is dependent on our credit profile with financial institutions that are willing and able to do business with us. Deterioration in our credit position or a significant tightening of the credit market conditions could limit our ability to hedge our foreign currency exposure and, therefore, result in exchange gains or losses.

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#### Item 1B. UNRESOLVED STAFF COMMENTS
None.

**Item 1C.** **CYBERSECURITY**

The Company's Board of Directors (the "Board") recognizes the critical importance of maintaining the trust and confidence of our customers, business partners, and employees. The Board is actively involved in oversight of the Company's risk management program, and cybersecurity represents an important component of the Company's overall approach to enterprise risk management ("ERM"). The Company's cybersecurity policies, standards, processes, and practices are integrated into the Company's ERM program and are based on recognized frameworks established by the National Institute of Standards and Technology and other applicable industry standards. In general, the Company seeks to address cybersecurity risks through a comprehensive, cross-functional approach that is focused on preserving operational continuity and the confidentiality, security and availability of the information that the Company collects and stores by identifying, preventing and mitigating cybersecurity threats and effectively responding to cybersecurity incidents when they occur.

**Risk Management and Strategy**

As one of the critical elements of the Company's overall ERM approach, the Company's cybersecurity program is focused on the following key areas:

● **Governance:** As discussed in more detail under the heading "Governance," the Board's oversight of cybersecurity risk management has been delegated to the Audit, Finance and Risk Committee of the Board (the "Audit Committee"), which interacts with the Company's ERM function, the Company's Chief Information Officer, the Company's Senior Director of Cyber Security, and other members of management and relevant management committees and councils.

● **Collaborative Approach:** The Company has adopted a cross-functional approach toward identifying, prioritizing, and implementing the means to protect information technology systems and its employees from cybersecurity threats. Additionally, the Company has established communications protocols and processes to escalate cybersecurity incidents to engage management as needed to make timely decisions regarding incident response, recovery, and any required disclosures.

● **Technical Safeguards:** The Company uses an array of complex technologies and services to protect its information systems and employees from cybersecurity threats. Examples include firewalls, intrusion prevention and detection systems, anti-malware functionality, and access controls. These safeguards are evaluated and improved through learnings derived from vulnerability assessments, penetration tests, and cybersecurity threat intelligence.

● **Incident Response and Recovery Planning:** The Company has defined and maintains cross-functional incident response and recovery plans that will guide the Company's response to a cybersecurity incident. These plans are reviewed by senior management and are evaluated through tabletop exercises on a regular basis.

● **Third-Party Risk Management:** The Company uses a risk-based approach to identify and manage cybersecurity risks from third parties, including vendors and service providers. The focus of these efforts is to identify and mitigate threats that could impact Company operations.

● **Education and Awareness:** All new hires are required to complete mandatory cybersecurity awareness training upon joining the Company. Follow-on training is then assigned to all employees on a regular basis. Training assignments reinforce the Company's security and information technology acceptable use policies, while also helping employees identify and properly respond to cybersecurity threats. To help assess and maintain awareness, training is supplemented with simulated phishing e-mails that are sent on a regular basis.

The Company engages third parties in the periodic assessment and testing of the Company's policies, standards, processes and practices that are designed to address cybersecurity threats and incidents. These efforts include a wide range of activities, including penetration testing, vulnerability assessments, tabletop exercises, and other activities focused on

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evaluating the effectiveness of our cybersecurity measures and planning. The results of such assessments influence the Company's tuning of cybersecurity policies, standards, processes and practices, the results of which are shared with the Board and the Audit Committee.

**Governance**

The Board, in coordination with the Audit Committee, oversees the Company's ERM process, including the management of risks arising from cybersecurity threats. The Board and the Audit Committee each receive regular updates on cybersecurity program key metrics, outstanding vulnerabilities, and emerging cybersecurity risks.

The Board and the Audit Committee also receive prompt and timely information regarding any cybersecurity incident that meets established reporting thresholds, as well as ongoing updates regarding any such incident until it has been addressed.

The Chief Information Officer and Senior Director of Cyber Security work in close partnership with the Company's senior leadership team to protect the Company's information systems from cybersecurity threats and to promptly respond to any cybersecurity incidents in accordance with the Company's incident response and recovery plans. This collaboration work includes activities in support of the prevention, detection, mitigation and remediation of cybersecurity threats and incidents in real time and to report such threats and incidents to the Audit Committee and others when appropriate.

The Chief Information Officer earned a Bachelor of Science Degree in Management Information Systems from Western Connecticut State University and has served in various roles in information technology and information security for over 30 years, including serving in leadership roles of two large public companies. The Senior Director of Cyber Security earned a Bachelor's Degree in Information Systems from Western New England University and has extensive cybersecurity leadership experience, including expertise in threat data analytics, digital forensics, and data recovery. Prior to joining the Company, the Senior Director of Cyber Security formed and served as CEO of a successful incident response and cybersecurity consulting firm.

**Impacts of Cybersecurity Threats**

To date, there have been no cyber security threats or incidents that have materially impacted our operations or financial condition. However, as a result of risks from cybersecurity threats, including as a result of previous cybersecurity incidents, we continue to allocate resources to sustain and enhance our cyber security capabilities, which allocation of resources has in turn materially affected our business strategy and processes. Despite these investments, we cannot be certain that the protective measures and processes implemented will be successful or adequate to counter all current and emerging risks and threats. A significant cybersecurity incident involving our systems and data, or those of our customers, business partners or vendors, could have a materially adverse effect on our business strategy, results of operations and financial condition.

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| | |
|:---|:---|
| **Item 2.** | **PROPERTIES** |

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The following is a summary of our offices and locations:

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| | | | |
|:---|:---|:---|:---|
| <br>**Location** | <br>**Business Use** | **Square**<br>**Footage** | **Lease Expiration**<br>**Dates** |
| Danbury, Connecticut | Corporate Headquarters, Research and Development, Sales, Marketing, Service, Purchasing and Administration | 72000 | Company owned |
| Torrington, Connecticut | Manufacturing and Administrative | 167000 | December 2030 (1) |
| Taufkirchen, Germany | Manufacturing and Administrative | 20000 | June 2026 |
| Calgary, Alberta, Canada | Manufacturing, Research and Development | 80000 | September 2028 |
| Calgary, Alberta, Canada | Storage | 18627 | September 2028 |

---

&nbsp;&nbsp;&nbsp;&nbsp;(1) In November 2015, this lease was extended until December 2030, with the option to extend for three additional five-year periods thereafter.

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| | |
|:---|:---|
| **Item 3.** | **LEGAL PROCEEDINGS** |

---

From time to time, the Company is involved in legal proceedings, including, but not limited to, regulatory proceedings, claims, mediations, arbitrations and litigation, arising out of the ordinary course of its business ("Legal Proceedings"). Although the Company cannot assure the outcome of such Legal Proceedings, management presently believes that the result of such Legal Proceedings, either individually, or in the aggregate, will not have a material adverse effect on the Company's consolidated financial statements, and no material amounts have been accrued in the Company's consolidated financial statements with respect to these matters.

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| | |
|:---|:---|
| **Item 4.** | **MINE SAFETY DISCLOSURES** |

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Not applicable.

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#### PART II

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| | |
|:---|:---|
| **Item 5.** | **MARKET FOR REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES** |

---

#### FuelCell Common Stock
Our common stock has been publicly traded since June 25, 1992. Our common stock trades under the symbol "FCEL" on the Nasdaq Global Market.

On December 15, 2025, the closing price of our common stock on the Nasdaq Global Market was $8.36 per share. As of December 15, 2025, there were 19 holders of record of our common stock. This does not include the number of persons whose stock is in nominee or "street" name accounts through brokers.

We have never paid a cash dividend on our common stock and do not anticipate paying any cash dividends on our common stock in the foreseeable future. In addition, the terms of our Series B Preferred Stock prohibit the payment of dividends on our common stock unless all dividends on the Series B Preferred Stock have been paid in full.

On November 8, 2024, we effected a 1-for-30 reverse stock split, reducing the number of our common shares outstanding on that date from 611,278,662 shares to approximately 20,375,932 shares. The number of authorized shares of common stock remains unchanged at 1,000,000,000 shares and the number of authorized shares of preferred stock remains unchanged at 250,000 shares. The number of shares of common stock issuable upon settlement of outstanding restricted stock unit, performance stock unit and deferred stock unit awards were reduced proportionately in connection with the reverse stock split. Additionally, the conversion rate of our Series B Preferred Stock (as defined elsewhere herein), the exercise price of all outstanding options, the number of shares of common stock issuable upon the exercise of all outstanding options, and the number of shares reserved for future issuance pursuant to our equity compensation plans and employee stock purchase plan were all adjusted proportionately in connection with the reverse stock split. All share and per share amounts, exercise prices, conversion rates and conversion prices presented herein that relate to dates, or were established, prior to the reverse stock split have been adjusted retroactively to reflect these changes.

#### FuelCell Preferred Stock
Information concerning the Company's Series B Preferred Stock is incorporated herein by reference to Note 14. "Redeemable Preferred Stock" of the Notes to the Consolidated Financial Statements.

#### Performance Graph
The following graph compares the annual change in the cumulative total stockholder return on our common stock for the five fiscal years ended October 31, 2025 with the cumulative total stockholder return on (i) the Russell 2000 Index, (ii) our customized peer group for fiscal year 2025 ("2025 Peer Group"), and (iii) our customized peer group for fiscal year 2024 ("2024 Peer Group"). The graph assumes that $100.00 was invested on October 31, 2020 and that all dividends were reinvested.

We have used our 2025 Peer Group, a group selected in good faith and used by the Compensation and Leadership Development Committee of the Board ("Compensation Committee") for peer comparison benchmarking purposes because we believe this group provides an accurate representation of our peers. Our Compensation Committee reviewed and selected the companies in our 2025 Peer Group in September 2025 in consultation with its independent compensation consultant and, as will be described in Proxy Statement for the 2026 Annual Meeting of stockholders, was referenced by our Compensation Committee when setting fiscal year 2026 compensation. The Compensation Committee reviews our peer group on an annual basis and reconfigures our peer group as it deems necessary in consultation with its independent compensation consultant to ensure that the size and composition of the peer group remains appropriate.

Our 2025 Peer Group is comprised of the following 17 companies: American Superconductor Corporation, Aspen Aerogels, Inc., Ballard Power Systems Inc., Blink Charging Co., Broadwind, Inc., ChargePoint Holdings, Inc., Clean Energy Fuels Corp., Energy Recovery, Inc., Energy Vault Holdings, Inc., Hyliion Holdings Corp., Montauk Renewables, Inc., Nuscale Power Corporation, Plug Power Inc., Shoals Technologies Group, Inc., Stem, Inc., Tigo Energy, Inc., and

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Vicor Corporation, and is consistent with the peer group expected to be disclosed in our Proxy Statement for the 2026 Annual Meeting of Stockholders.

In updating our 2024 Peer Group to create our 2025 Peer Group, American Superconductor Corporation, Broadwind, Inc., ChargePoint Holdings, Inc., and Tigo Energy, Inc. were added and Bloom Energy Corporation and Altus Power, Inc. were removed. Due to its acquisition and the subsequent delisting of its securities from the New York Stock Exchange, Altus Power, Inc., which was previously included in the 2024 Peer Group, has been removed from the 2024 Peer Group for all years presented and has not been included in the 2025 Peer Group.

The information contained in the graph below shall not be deemed to be "soliciting material" or to be "filed" with the SEC nor shall such information be deemed incorporated by reference into any future filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent we specifically incorporate it by reference into such filing.

The comparisons in the graph below are based upon historical data and are not indicative of, or intended to forecast, future performance.

![Graphic](fcel-20251031x10k008.jpg)

**Equity Compensation Plan Information**

See Part III, Item 12 for information regarding securities authorized for issuance under our equity compensation plans.

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#### Stock Repurchases
The following table sets forth information with respect to purchases made by us or on our behalf of our common stock during the periods indicated:

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| | | | | |
|:---|:---|:---|:---|:---|
| **Period** | **Total Number of Shares Purchased** <sup>(1)</sup> | **Average Price Paidper Share** | **Total Number of Shares Purchased as Part of Publicly Announced Programs** | **Maximum Number of Shares that May Yet be Purchased Under the Plans orPrograms** |
| August 1, 2025 - August 31, 2025 | &nbsp;&nbsp;&nbsp;&nbsp;78 | $&nbsp;&nbsp;&nbsp;&nbsp;5.27 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— |
| September 1, 2025 - September 30, 2025 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— |
| October 1, 2025 - October 31, 2025 | &nbsp;&nbsp;&nbsp;&nbsp;67 | &nbsp;&nbsp;&nbsp;&nbsp;8.06 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— |
| **Total** | &nbsp;&nbsp;&nbsp;&nbsp;145 | $&nbsp;&nbsp;&nbsp;&nbsp;6.56 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— |

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&nbsp;&nbsp;&nbsp;&nbsp;(1) Includes only shares that were surrendered by employees to satisfy statutory tax withholding obligations in connection with the vesting of stock-based compensation awards.

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| | |
|:---|:---|
| **Item 6.** | **RESERVED** |

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| | |
|:---|:---|
| **Item 7.** | **MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS** |

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The following discussion should be read in conjunction with the information included in Item 8 of this Annual Report on Form 10-K. Unless otherwise indicated, the terms "Company", "FuelCell Energy", "we", "us", and "our" refer to FuelCell Energy, Inc. and its subsidiaries. All tabular dollar amounts are in thousands. In certain instances, the capitalized terms used in this section are defined elsewhere in this Annual Report on Form 10-K, including in the Notes to the Consolidated Financial Statements.

In addition to historical information, this discussion and analysis contains forward-looking statements. All forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from those projected. Please see the section of this Annual Report entitled "Forward-Looking Statement Disclaimer" for a discussion of the uncertainties, risks and assumptions associated with these statements, as well as the other risks set forth in our filings with the SEC including those set forth under the section entitled Item 1A. Risk Factors in this Annual Report.

#### Overview

**In addition to our existing core molten carbonate-based commercial products, we engage strategically in research and development, both company-funded and carried out under grants from and commercial agreements with private companies and various government agencies through our Advanced Technologies programs. Our Advanced Technologies programs are currently focused on continued development and advancement of our core carbonate fuel cell technology as well as commercialization of our solid oxide electrolysis technology for distributed hydrogen. We focus on generating revenue from our core recurring and non-recurring revenue sources, while working to identify the next trends in clean energy we believe we can commercialize, take to market, and grow into future revenue streams.** 

#### Recent Developments
The events described in this "Recent Developments" section relate, in part, to matters discussed in more detail below in this "Management's Discussion and Analysis of Financial Condition and Results of Operations" section and/or in the Notes to the Consolidated Financial Statements.

#### 2025 EXIM Financing
On November 26, 2025, the Company closed on its second project debt financing transaction (the "2025 EXIM Financing") with the Export-Import Bank of the United States ("EXIM") to support the Company's obligations under its long-term service agreement ("LTSA") with Gyeonggi Green Energy Co., Ltd. ("GGE"), pursuant to which the Company is supplying GGE with upgraded carbonate fuel cell modules to replace existing units at GGE's Hwaseong Baran Industrial

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Complex. In conjunction with this financing, the Company entered into a promissory note and related security agreements securing the loan with equipment liens, resulting in gross proceeds of approximately $25.0 million. Interest accrues at a fixed interest rate of 5.29%, and the note is repayable in monthly installments consisting of interest and principal over 7 years from the date of the first debt payment, which is due in December 2025. After payment of customary fees and transaction costs, net proceeds to the Company were approximately $23.1 million.

The credit agreement between the Company and EXIM with respect to the 2025 EXIM Financing contains certain reporting requirements and other affirmative and negative covenants which are customary for transactions of this type. In addition, under this credit agreement and through an amendment to the credit agreement for the 2024 EXIM Financing (as defined elsewhere herein), the Company is required to maintain, throughout the remaining term of the credit agreement for the 2024 EXIM Financing and the term of the credit agreement for the 2025 EXIM Financing, a total minimum cash balance of $55.0 million. The amendment to the credit agreement for the 2024 EXIM Financing, which was executed in conjunction with and at the same time as the credit agreement for the 2025 EXIM Financing, reduced the total minimum cash balance requirement from $100.0 million to $55.0 million. For the purposes of these credit agreements, cash is defined as the sum of unrestricted cash plus all short-term (but no longer than three months), marketable United States Treasury instruments (as measured based on the maturity amount of each instrument).

**Results of Operations**

Management evaluates our results of operations and cash flows using a variety of key performance indicators, including revenues compared to prior periods and internal forecasts, costs of our products and results of our cost reduction initiatives, and operating cash use. These are discussed throughout the "Results of Operations" and "Liquidity and Capital Resources" sections. Results of Operations are presented in accordance with U.S. GAAP.

The following discussion and analysis of our Results of Operations and Liquidity and Capital Resources includes a comparison of the fiscal year ended October 31, 2025 ("fiscal year 2025") to the fiscal year ended October 31, 2024 ("fiscal year 2024"). A similar discussion and analysis that compares fiscal year 2024 to the fiscal year ended October 31, 2023 ("fiscal year 2023") can be found in Item 7, "Management's Discussion and Analysis of Financial Condition and Results of Operations," of our Form 10-K for the fiscal year ended October 31, 2024.

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**Comparison of the Years Ended October 31, 2025 and 2024**

#### Revenues and Costs of revenues
Revenues and costs of revenues for the years ended October 31, 2025 and 2024 were as follows:

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | **Year Ended October 31,** | **Year Ended October 31,** | **Year Ended October 31,** | **Year Ended October 31,** | **Change** |
| (dollars in thousands) | **2025** | **2025** | **2024** | **2024** | $**%** |
| Total revenues | $| 158162 | $| 112132 | 41% |
| Total costs of revenues |  | 184570 |  | 148050 | 25% |
| Gross loss | $ | (26408) | $ | (35918) | 26% |
| &nbsp;&nbsp;&nbsp;&nbsp;Gross margin |  | (16.7)% |  | (32.0)% |  |

---

Total revenues for the year ended October 31, 2025 increased $46.0 million, or 41%, to $158.2 million from $112.1 million for the year ended October 31, 2024. Total costs of revenues for the year ended October 31, 2025 increased by $36.5 million, or 25%, to $184.6 million from $148.1 million for the year ended October 31, 2024. The Company's gross margin was (16.7)% in fiscal year 2025, as compared to a gross margin of (32.0)% in fiscal year 2024. A discussion of the changes in product revenues, service agreements revenues, generation revenues and Advanced Technologies contract revenues follows.

#### Product revenues
Product revenues, cost of product revenues and gross loss from product revenues for the years ended October 31, 2025 and 2024 were as follows:

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | **Year Ended October 31,** | **Year Ended October 31,** | **Year Ended October 31,** | **Year Ended October 31,** | **Change** |
| (dollars in thousands) | **2025** | **2025** | **2024** | **2024** | $**%** |
| Product revenues | $| &nbsp;&nbsp;&nbsp;&nbsp;69129 | $| &nbsp;&nbsp;&nbsp;&nbsp;25675 | 169% |
| Cost of product revenues |  | &nbsp;&nbsp;&nbsp;&nbsp;82853 |  | &nbsp;&nbsp;&nbsp;&nbsp;39582 | 109% |
| Gross loss from product revenues | $ | &nbsp;&nbsp;&nbsp;&nbsp;(13724) | $ | &nbsp;&nbsp;&nbsp;&nbsp;(13907) | (1)% |
| &nbsp;&nbsp;&nbsp;&nbsp;Product revenues gross margin |  | (19.9)% |  | (54.2)% |  |

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Product revenues for the year ended October 31, 2025 were $69.1 million compared to $25.7 million for the year ended October 31, 2024. The increase in product revenues during the year ended October 31, 2025 was primarily driven by $66.0 million of revenue recognized under the Company's LTSA with GGE for the replacement of 22 fuel cell modules for GGE's 58.8 MW fuel cell power plant platform in Hwasong-si, South Korea, compared to the revenue recognized for the replacement of 6 fuel cell modules in the year ended October 31, 2024. Partially offsetting the increase in revenue recognized under the LTSA with GGE is the decrease in revenue recognized under the Company's sales contract with Ameresco, Inc. $3.1 million of revenue was recognized under the Company's sales contract with Ameresco, Inc. for the year ended October 31, 2025, compared to $7.7 million in the year ended October 31, 2024. The Company's sales contract with Ameresco, Inc. was entered into during the second quarter of fiscal year 2024, pursuant to which the Company is to provide a 2.8 MW platform to the Sacramento Sewer District.

Cost of product revenues increased $43.3 million for the year ended October 31, 2025 to $82.9 million, compared to $39.6 million in the year ended October 31, 2024, primarily due to the higher product sales in fiscal year 2025. Manufacturing variances, primarily related to production volumes and unabsorbed overhead costs, totaled approximately $13.1 million for the year ended October 31, 2025 compared to approximately $11.9 million for the year ended October 31, 2024.

Product revenues for the year ended October 31, 2025 generated a gross loss of $(13.7) million compared to a gross loss of $(13.9) million for the year ended October 31, 2024. The gross loss for both of the years ended October 31, 2025 and 2024 was primarily due to the manufacturing variances discussed above.

For the year ended October 31, 2025, we operated at an annualized production rate of approximately 31.5 MW, which is an increase from the annualized production rate of 27.7 MW for the year ended October 31, 2024. The increase in the annualized production rate for fiscal year 2025 is primarily due to increasing our production levels in our Torrington facility as a result of market demand timing.

As of October 31, 2025 and 2024, there was $66.2 million and $111.3 million, respectively, of product backlog.

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#### Service agreements revenues
Service agreements revenues and associated cost of revenues for the years ended October 31, 2025 and 2024 were as follows:

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | **Year Ended October 31,** | **Year Ended October 31,** | **Year Ended October 31,** | **Year Ended October 31,** | **Change** |
| (dollars in thousands) | **2025** | **2025** | **2024** | **2024** | $**%** |
| Service agreements revenues | $| 20398 | $| 9969 | 105% |
| Cost of service agreements revenues |  | 22634 |  | 11098 | 104% |
| Gross loss from service agreements revenues | $ | &nbsp;&nbsp;&nbsp;&nbsp;(2236) | $ | &nbsp;&nbsp;&nbsp;&nbsp;(1129) | 98% |
| &nbsp;&nbsp;&nbsp;&nbsp;Service agreements revenues gross margin |  | (11.0)% |  | (11.3)% |  |

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Revenues for the year ended October 31, 2025 from service agreements increased $10.4 million to $20.4 million from $10.0 million for the year ended October 31, 2024 primarily because more module exchanges were performed under long-term service agreements during the year ended October 31, 2025 than during the year ended October 31, 2024. The increase is also a result of revenue recognized under the Company's LTSA with GGE for service provided by the Company to GGE's 58.8 MW fuel cell power plant platform in Hwaseong-si, South Korea.

For the year ended October 31, 2025, performance penalties under our service agreements totaled approximately $0.8 million compared to approximately $0.4 million for the year ended October 31, 2024. Performance guarantees represent variable consideration for service contracts and accordingly are recorded as an offset to service agreements revenues.

Cost of service agreements revenues increased $11.5 million to $22.6 million for the year ended October 31, 2025 from $11.1 million for the year ended October 31, 2024. Cost of service agreements revenues were higher for the year ended October 31, 2025 than for the year ended October 31, 2024 primarily due to the costs associated with the greater number of module exchanges performed during the year, as well as the costs of commissioning GGE modules during the year. The increase was offset by a net decrease relating to the recognition of service agreement loss accruals during fiscal year 2025 of approximately $0.5 million. We record loss accruals for service agreements when the estimated cost of future module exchanges and maintenance and monitoring activities exceeds the remaining unrecognized consideration. Estimates for future costs under service agreements are determined by a number of factors including the estimated remaining life of the module(s), used replacement modules available, and future operating plans for the power platform.

We work to continuously improve and mature our products and implement lessons learned into our product designs and manufacturing process subsequent to introduction. We examine data related to module field performance, identify improvement opportunities and invest in improvement initiatives with respect to our core molten carbonate technology. We have identified improvement opportunities ranging from improved thermal management by reducing internal temperature to improving the performance of our electrical balance of plant and implemented design changes to our commercial platforms which are expected to improve overall product performance. As it relates to our fuel cell modules, these improvements center around delivering more uniform temperature distribution of the cell stack within the modules with the intent of improving output over the life of the modules to achieve the product's expected design life.

Cost of service agreements revenues for both years includes planned maintenance activities, module exchanges and continued investment in the service fleet in order to improve performance. Cost of service agreements includes maintenance and operating costs and module exchanges.

Overall gross loss from service agreements revenues was $(2.2) million for the year ended October 31, 2025 which increased from a gross loss of $(1.1) million for the year ended October 31, 2024. The overall gross margin was (11.0)% for the year ended October 31, 2025, compared to a gross margin of (11.3)% in the year ended October 31, 2024.

As of October 31, 2025, service agreements backlog totaled $162.4 million compared to $174.2 million as of October 31, 2024. This backlog is for service agreements of up to 20 years at inception and is expected to generate positive margins and cash flows based on current estimates.

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#### Generation revenues
Generation revenues and related costs for the years ended October 31, 2025 and 2024 were as follows:

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | **Year Ended October 31,** | **Year Ended October 31,** | **Year Ended October 31,** | **Year Ended October 31,** | **Change** |
| (dollars in thousands) | **2025** | **2025** | **2024** | **2024** | $**%** |
| Generation revenues | $| 48013 | $| 49975 | (4)% |
| Cost of generation revenues |  | 63967 |  | 79861 | (20)% |
| Gross loss from generation revenues | $ | &nbsp;&nbsp;&nbsp;&nbsp;(15954) | $ | &nbsp;&nbsp;&nbsp;&nbsp;(29886) | 47% |
| &nbsp;&nbsp;&nbsp;&nbsp;Generation revenues gross margin |  | (33.2)% |  | (59.8)% |  |

---

Revenues from generation for the year ended October 31, 2025 totaled $48.0 million, which represents a decrease of $2.0 million from revenue recognized of $50.0 million for the year ended October 31, 2024. The decrease in generation revenues reflects lower output from plants in our generation operating portfolio resulting from routine maintenance activities. Generation revenues for the years ended October 31, 2025 and 2024 reflect revenue from electricity generated under our power purchase agreements ("PPAs") and the sale of renewable energy credits from our generation operating portfolio.

Cost of generation revenues totaled $64.0 million for the year ended October 31, 2025 compared to $79.9 million for the year ended October 31, 2024. The overall decrease in cost of generation revenues is primarily related to the mark-to-market net gain recognized during the year ended October 31, 2025 of $4.7 million related to natural gas purchase contracts, compared to a mark-to-market net loss of $6.9 million for the year ended October 31, 2024, and partially due to a decrease in expensed construction and gas costs related to the Toyota project, which were $0.7 million for the year ended October 31, 2025, compared to $3.6 million for the year ended October 31, 2024.

Cost of generation revenues included depreciation and amortization of approximately $32.4 million and $28.2 million for the years ended October 31, 2025 and 2024, respectively. Cost of generation revenues for the year ended October 31, 2024 also included an impairment charge of $1.3 million relating to project assets that were then under construction relating to the PPAs for Trinity College and for UConn (as defined elsewhere herein). It was determined that expected project costs for these PPAs would exceed the expected cash flows under the PPAs and therefore an impairment charge was required. There were no impairment charges included in cost of generation revenues for the year ended October 31, 2025.

We currently have four projects with fuel sourcing risk, which are the Toyota project, our 14.0 MW Derby Fuel Cell Project and our 2.8 MW SCEF Fuel Cell Project, both located in Derby, Connecticut (collectively, the "Derby Projects"), and our 7.4 MW fuel cell project located in Yaphank Long Island (the "LIPA Yaphank Project"), all of which require natural gas for which there is no pass-through mechanism. A one-year fuel supply contract (through May of 2026) has been executed for the Toyota project. Six-year fuel supply contracts (through October 2029) have been executed for the 14.0 MW and 2.8 MW Derby Projects. We are currently in the midst of a seven-year contract (through September 2028) for our 7.4 MW LIPA Yaphank Project. The Company will look to extend the duration of these contracts should market and credit conditions allow. If the Company is unable to secure fuel on favorable economic terms, it may result in impairment charges to the Derby and Yaphank project assets and further charges for the Toyota project asset.

The overall gross loss from generation revenues was $(16.0) million for the year ended October 31, 2025, which represents a decrease in gross loss of $13.9 million, from a gross loss of $(29.9) million for the year ended October 31, 2024. The decrease in gross loss from generation revenues is primarily related to the mark-to-market net gain of $4.7 million recorded for the year ended October 31, 2025 compared to a mark-to-market net loss of $6.9 million for the year ended October 31, 2024, and a decrease in construction and gas costs being expensed related to the Toyota project.

As of October 31, 2025 and 2024, generation backlog totaled $0.9 billion and $0.8 billion, respectively.

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#### Advanced Technologies contracts
Advanced Technologies contract revenues and related costs for the years ended October 31, 2025 and 2024 were as follows:

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | **Year Ended October 31,** | **Year Ended October 31,** | **Year Ended October 31,** | **Year Ended October 31,** | **Change** |
| (dollars in thousands) | **2025** | **2025** | **2024** | **2024** | $**%** |
| Advanced Technologies contract revenues | $| 20622 | $| 26513 | (22)% |
| Cost of Advanced Technologies contract revenues |  | 15116 |  | 17509 | (14)% |
| Gross profit from Advanced Technologies contracts | $ | &nbsp;&nbsp;&nbsp;&nbsp;5506 | $ | &nbsp;&nbsp;&nbsp;&nbsp;9004 | (39)% |
| &nbsp;&nbsp;&nbsp;&nbsp;Advanced Technologies contract gross margin |  | 26.7% |  | 34.0% |  |

---

Advanced Technologies contract revenues decreased to $20.6 million for the year ended October 31, 2025 compared to $26.5 million for the year ended October 31, 2024. Advanced Technologies contract revenues recognized under the Joint Development Agreement (as amended, the "Joint Development Agreement") between the Company and ExxonMobil Technology and Engineering Company f/k/a ExxonMobil Research and Engineering Company ("EMTEC") were approximately $9.5 million during the year ended October 31, 2025, which was an increase of $0.7 million compared to the year ended October 31, 2024. Revenues arising from the purchase order received from Esso Nederland B.V. ("Esso"), an affiliate of EMTEC and Exxon Mobil Corporation, related to the Rotterdam project were approximately $8.1 million during the year ended October 31, 2025, which was a decrease of $2.5 million compared to the year ended October 31, 2024. Advanced Technologies contract revenues recognized under government and other contracts were approximately $3.0 million for the year ended October 31, 2025, which was a decrease of $4.1 million compared to the year ended October 31, 2024.

Cost of Advanced Technologies contract revenues decreased $2.4 million to $15.1 million for the year ended October 31, 2025, compared to $17.5 million for the year ended October 31, 2024. This decrease is primarily a result of the lower level of activity and the scope of work performed under the purchase order received from Esso and under government and other contracts during the year ended October 31, 2025, compared to the year ended October 31, 2024.

Advanced Technologies contracts for the year ended October 31, 2025 generated a gross profit of $5.5 million compared to a gross profit of $9.0 million for the year ended October 31, 2024. The decreased gross profit was primarily due to the lower margins recognized under the purchase order received from Esso and under government and other contracts during the year ended October 31, 2025, compared to the year ended October 31, 2024.

As of October 31, 2025, Advanced Technologies contract backlog totaled $19.5 million compared to $36.0 million as of October 31, 2024.

#### Administrative and selling expenses
Administrative and selling expenses were $60.7 million for the year ended October 31, 2025, which decreased from $64.6 million for the year ended October 31, 2024, primarily due to lower compensation expense as a result of the restructuring actions in September of fiscal year 2024 and in November and June of fiscal year 2025.

**Research and development expenses**

Research and development expenses decreased to $34.1 million for the year ended October 31, 2025 compared to $55.4 million for the year ended October 31, 2024. The decrease is primarily due to a decrease in spending on the Company's commercial development efforts related to our solid oxide power generation and electrolysis platforms and carbon separation and carbon recovery solutions compared to the year ended October 31, 2024.

**Restructuring expense**

Restructuring expense of $5.3 million for the year ended October 31, 2025 was a result of the Company's workforce reductions in November 2024 and June 2025, which represented approximately 13% and 22% of the Company's global workforce, respectively, and were intended to reduce operating costs, realign resources toward advancing the Company's core carbonate technologies, and protect the Company's competitive position amid slower-than-expected market investments in clean energy. The workforce was reduced across our global operations including Calgary, Canada and at

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our North American production facility in Torrington, Connecticut, at our corporate offices in Danbury, Connecticut and at other remote locations. For more information about the restructuring plans and the related workforce reductions that occurred in September 2024, November 2024, and June 2025, please see Part II, Item 8, Note 4 — *Impairment and Restructuring.*

#### Impairment expense
**Impairment expense of $65.8 million for the year ended October 31, 2025 related to the Company's prior investments in solid oxide technology, including related goodwill and in-process research and development ("IPR&D") intangible assets, property, plant and equipment and solid oxide inventory. Of the $65.8 million, approximately $42.1 million was related to property, plant and equipment, approximately $9.0 million was related to inventory, approximately $9.3 million was related to IPR&D intangible assets, approximately $4.1 million was related to goodwill and approximately $1.3 million was related to purchase order commitments. For more information about the impairment, please see Part II, Item 8, Note 4 — *Impairment and Restructuring.***

#### Loss from operations
Loss from operations for the year ended October 31, 2025 was $192.3 million compared to $158.5 million for the year ended October 31, 2024. This increase was driven primarily by the impairment and restructuring expenses recognized during the year ended October 31, 2025, partially offset by decreases in Administrative and selling expenses and Research and development expenses compared to the year ended October 31, 2024 and a decrease of $9.5 million in gross loss.

#### Interest expense
Interest expense for the years ended October 31, 2025 and 2024 was $10.4 million and $9.7 million, respectively. Interest expense for both periods includes interest on the OpCo Financing Facility (as defined elsewhere herein), which was entered into in May 2023, and interest on the Groton Senior Back Leverage Loan Facility and the Groton Subordinated Back Leverage Loan Facility (in each case, as defined elsewhere herein), which were entered into in August 2023. Interest expense increased for the year ended October 31, 2025, as this period also includes a full year of interest on the Derby Senior Back Leverage Loan Facility and the Derby Subordinated Back Leverage Loan Facility (in each case, as defined elsewhere herein), which were entered into in April 2024, and on the 2024 EXIM Financing (as defined elsewhere herein), which was entered into in October 2024.

#### Interest income
Interest income was $8.3 million and $13.7 million for the years ended October 31, 2025 and 2024, respectively. The decrease in interest income during the year ended October 31, 2025 was primarily driven by lower money market investments compared to the year ended October 31, 2024, partially offset by interest of $0.5 million earned on employee retention credits from the Internal Revenue Service. These employee retention credits were earned during the COVID-19 pandemic and accrued interest until such credits were received by the Company during the year ended October 31, 2025. Interest income for the year ended October 31, 2025 represents interest earned on money market investments, interest earned on investments in U.S. Treasury Securities and interest earned on employee retention credits. Interest income for the year ended October 31, 2024 represented interest earned on money market investments and interest earned on investments in U.S. Treasury Securities.

**Other income (expense), net**

Other income (expense), net was $3.2 million and ($2.3) million for the years ended October 31, 2025 and 2024, respectively. Other income, net for the year ended October 31, 2025 primarily relates to employee retention credits of $3.4 million that were earned during the COVID-19 pandemic and received during year ended October 31, 2025 and a gain of $0.4 million related to refundable research and development tax credits, partially offset by an unrealized loss of $0.7 million on the OpCo Financing Facility interest rate swap derivative. Other expense, net for the year ended October 31, 2024 primarily relates to a loss on the OpCo Financing Facility interest rate swap derivative of $3.1 million, partially offset by a gain of $1.0 million relating to refundable research and development tax credits.

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**Provision for income taxes**

We have not paid federal or state income taxes in several years due to our history of net operating losses, although we have paid foreign income and withholding taxes in South Korea. Provision for income tax recorded for the years ended October 31, 2025 and 2024 was $0.1 million and $25 thousand, respectively.

**Net loss attributable to noncontrolling interests**

Net loss attributable to noncontrolling interests is the result of allocating profits and losses to noncontrolling interests under the hypothetical liquidation at book value ("HLBV") method. HLBV is a balance sheet-oriented approach for applying the equity method of accounting when there is a complex structure, such as the flip structure of our tax equity financings with Franklin Park 2023 FCE Tax Equity Fund, LLC ("Franklin Park"), East West Bancorp, Inc. ("East West Bank") and Renewable Energy Investors, LLC ("REI").

For the years ended October 31, 2025 and 2024, net loss attributable to noncontrolling interest totaled $(1.4) million and net income attributable to noncontrolling interest totaled $0.9 million, respectively, for the LIPA Yaphank Project tax equity financing transaction with REI.

For the years ended October 31, 2025 and 2024, net loss attributable to noncontrolling interest totaled $(3.6) million and $(3.5) million, respectively, for the Groton Project tax equity financing transaction with East West Bank.

For the years ended October 31, 2025 and 2024, net income attributable to noncontrolling interest totaled $1.5 million and net loss attributable to noncontrolling interest totaled $(28.3) million, respectively, for the Derby Projects tax equity financing transaction with Franklin Park. The loss in the year ended October 31, 2024 was primarily driven by the Investment Tax Credit ("ITC") attributable to the noncontrolling interest for the 2023 tax year. The ITC reduces the noncontrolling interest's claim on hypothetical liquidation proceeds in the HLBV waterfall and is nonrecurring. The loss is also a result of accelerated depreciation allocated to the noncontrolling interest under the HLBV method. The above noted items resulted in a reduction in liquidation proceeds which drove the loss in the year ended October 31, 2024.

**Series B preferred stock dividends**

Dividends recorded on our 5% Series B Cumulative Convertible Perpetual Preferred Stock ("Series B Preferred Stock") were $3.2 million for each of the years ended October 31, 2025 and 2024.

#### Net loss attributable to common stockholders and loss per common share
Net loss attributable to common stockholders represents the net loss for the period less the preferred stock dividends on the Series B Preferred Stock. For the years ended October 31, 2025 and 2024, net loss attributable to common stockholders was $191.1 million and $129.2 million, respectively, and loss per common share was $7.42 and $7.83, respectively. The increase in the net loss attributable to common stockholders for the year ended October 31, 2025 is primarily due to impairment and restructuring expenses recognized during the year ended October 31, 2025, partially offset by the decreased net loss attributable to noncontrolling interests for the year ended October 31, 2025 compared to the year ended October 31, 2024. The net loss per common share for the year ended October 31, 2025 benefited from the higher number of weighted average shares outstanding due to share issuances since October 31, 2024.

#### LIQUIDITY AND CAPITAL RESOURCES

#### Overview, Cash Position, Sources and Uses
Our principal sources of cash have been proceeds from the sale of our products and projects, electricity generation revenues, research and development and service agreements with third parties, sales of our common stock through public equity offerings, and proceeds from debt, project financing and tax monetization transactions. We have utilized this cash to accelerate the commercialization of our solid oxide platforms, develop new capabilities to separate and capture carbon, develop and construct project assets, invest in capital improvements and expansion of our operations, perform research and development, pay down existing outstanding indebtedness, and meet our other cash and liquidity needs.

As of October 31, 2025, unrestricted cash and cash equivalents totaled $278.1 million compared to $148.1 million as of October 31, 2024. During the years ended October 31, 2025 and 2024, the Company invested in United States (U.S.)

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Treasury Securities. The amortized cost of the U.S. Treasury Securities outstanding totaled $109.1 million as of October 31, 2024 and was classified as Investments - short-term on the Consolidated Balance Sheets. There were no outstanding U.S. Treasury Securities as of October 31, 2025 as all U.S. Treasury Securities that were outstanding during the year ended October 31, 2025 matured prior to October 31, 2025.

During fiscal year 2025, the Company received the second annual funding from East West Bank under the tax equity financing transaction between the Company and East West Bank and, as a result, the Company received a $4.0 million contribution during the year ended October 31, 2025 which is recorded as noncontrolling interest on the Consolidated Balance Sheets.

On April 10, 2024, the Company entered into Amendment No. 1 to the Open Market Sale Agreement, dated July 12, 2022 (as amended, the "Sales Agreement"), with Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canaccord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and Loop Capital Markets LLC (each, an "Agent" and together, the "Agents"), with respect to an at the market offering program under which the Company may, from time to time, offer and sell shares of its common stock having an aggregate offering price of up to $300.0 million (exclusive of any amounts previously sold under the Sales Agreement prior to its amendment). On December 27, 2024, the Company entered into Amendment No. 2 to the Sales Agreement, which removed certain representations and warranties relating to the Company's status as a well-known seasoned issuer. During the year ended October 31, 2025, approximately 25.6 million shares of the Company's common stock were sold under the Sales Agreement at an average sale price of $7.44 per share, resulting in gross proceeds of approximately $190.4 million before deducting sales commissions and fees, and net proceeds to the Company of approximately $185.7 million after deducting sales commissions totaling approximately $3.8 million and fees totaling approximately $0.9 million. In the fourth quarter of fiscal year 2025, approximately 16.4 million shares of the Company's common stock were sold under the Sales Agreement at an average sale price of $8.33 per share, resulting in gross proceeds of approximately $136.9 million before deducting sales commissions and fees, and net proceeds to the Company of approximately $134.1 million after deducting sales commissions totaling approximately $2.7 million and fees totaling approximately $0.1 million. See Note 13. "Stockholders' Equity" to our Consolidated Financial Statements for additional information regarding the Sales Agreement.

Subsequent to October 31, 2025, approximately 1.6 million shares of the Company's common stock were sold under the Sales Agreement, at an average sale price of $8.37 per share, resulting in gross proceeds of approximately $13.4 million before deducting sales commissions and fees, and net proceeds to the Company of approximately $13.1 million after deducting sales commissions and fees totaling approximately $0.3 million. Approximately $1.1 million of shares remained available for sale under the Sales Agreement following these sales.

As described above in the section entitled "Recent Developments", on November 26, 2025, the Company closed on the 2025 EXIM Financing, resulting in gross proceeds of approximately $25.0 million before deducting customary fees and transaction costs, and net proceeds to the Company of approximately $23.1 million after deducting customary fees and transaction costs. Under the credit agreement for the 2025 EXIM Financing and through an amendment to the credit agreement for the 2024 EXIM Financing (as defined elsewhere herein), the Company is required to maintain, throughout the remaining term of the credit agreement for the 2024 EXIM Financing and the term of the credit agreement for the 2025 EXIM Financing, a total minimum cash balance of $55.0 million. The amendment to the credit agreement for the 2024 EXIM Financing, which was executed in conjunction with and at the same time as the credit agreement for the 2025 EXIM Financing, reduced the total minimum cash balance requirement from $100.0 million to $55.0 million.

On December 27, 2024, the Company filed Post-Effective Amendment No. 1 and Post-Effective Amendment No. 2 to the Registration Statement on Form S-3 (File No. 333-274971) (the "Registration Statement"), each including a base prospectus covering the offering, issuance and sale by the Company of up to $405.0 million of common stock, warrants and units (or any combination thereof) from time to time in one or more offerings and a prospectus supplement covering the offering, issuance and sale by the Company from time to time of up to approximately $204.9 million of the Company's common stock, which was the amount remaining under the Sales Agreement as of December 27, 2024. On March 5, 2025, the Company filed Post-Effective Amendment No. 3 to the Registration Statement to update certain information, to provide an updated consent of its independent registered public accounting firm, and to provide an update about the amount of shares then remaining available for offer and sale by the Company under the Sales Agreement. The Registration Statement, as amended by the Post-Effective Amendments, was declared effective by the SEC on March 10, 2025. In the event that the Sales Agreement is terminated, any portion of the aggregate amount of shares of common stock included in the

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prospectus supplement that is not sold pursuant to the Sales Agreement will be available for sale in other offerings pursuant to the base prospectus and a corresponding prospectus supplement.

In addition, the Company has a universal shelf Registration Statement on Form S-3 (No. 333-286842) that was declared effective by the SEC on May 8, 2025. Under this universal shelf Registration Statement, the Company may offer and sell from time to time in one or more offerings up to $200.0 million in the aggregate of (1) shares of the Company's common stock; (2) shares of the Company's preferred stock; (3) debt securities; (4) warrants exercisable for common stock, preferred stock, debt securities, units, or other securities of the Company; and (5) units consisting of one or more shares of common stock, shares of preferred stock, debt securities, and/or warrants.

We believe that our unrestricted cash and cash equivalents, expected receipts from our contracted backlog, and release of short-term restricted cash less expected disbursements over the next twelve months will be sufficient to allow the Company to meet its obligations for at least one year from the date of issuance of the financial statements included in this Annual Report on Form 10-K.

To date, we have not achieved profitable operations or sustained positive cash flow from operations. The Company's future liquidity, for fiscal year 2026 and in the long-term, will depend on its ability to (i) timely complete current projects in process within budget, (ii) increase cash flows from its generation operating portfolio, including by meeting conditions required to timely commence operation of new projects, operating its generation operating portfolio in compliance with minimum performance guarantees and operating its generation operating portfolio in accordance with revenue expectations, (iii) obtain financing for project construction and manufacturing expansion, (iv) obtain permanent financing for its projects once constructed, (v) increase order and contract volumes, which would lead to additional product sales, service agreements and generation revenues, (vi) obtain funding for and receive payment for research and development under current and future Advanced Technologies contracts, (vii) successfully advance the commercialization of its solid oxide and carbon capture platforms through partnerships with third parties, (viii) implement capacity expansion for its carbonate products when required, (ix) seek partnerships for solid oxide product commercialization and manufacturing, (x) implement the product cost reductions necessary to achieve profitable operations, (xi) manage working capital and the Company's unrestricted cash balance and (xii) access the capital markets to raise funds through the sale of debt and equity securities, convertible notes, and other equity-linked instruments.

We are continually assessing different means by which to accelerate the Company's growth, enter new markets, commercialize new products, and enable capacity expansion. Therefore, from time to time, the Company may consider and enter into agreements for one or more of the following: negotiated financial transactions, minority investments, collaborative ventures, technology sharing, transfer or other technology license arrangements, joint ventures, partnerships, acquisitions or other business transactions for the purpose(s) of geographic or manufacturing expansion and/or new product or technology development and commercialization, including hydrogen production through our carbonate and solid oxide platforms and storage and carbon capture, sequestration and utilization technologies.

Our business model requires substantial outside financing arrangements and satisfaction of the conditions of such arrangements to construct and deploy our projects to facilitate the growth of our business. The Company has invested capital raised from sales of its common stock to build out its project portfolio. The Company has also utilized and expects to continue to utilize a combination of long-term debt and tax equity financing (e.g., sale-leaseback transactions, partnership flip transactions and the monetization and/or transfer of eligible investment and production tax credits) to finance its project asset portfolio as these projects commence commercial operations. The Company may also seek to undertake private placements of debt securities to finance its project asset portfolio. The Company is also pursuing financing to support its commercial efforts, which include deployment of modules to the repowering opportunities in the South Korean market including the GGE project (as defined elsewhere herein). The proceeds of any such financing, if obtained, may allow the Company to reinvest capital back into the business and to fund other projects. We also expect to seek additional financing in both the debt and equity markets in the future. If financing is not available to us on acceptable terms if and when needed, or on terms acceptable to us or our lenders, if we do not satisfy the conditions of our financing arrangements, if we spend more than the financing approved for projects, if project costs exceed an amount that the Company can finance, or if we do not generate sufficient revenues or obtain capital sufficient for our corporate needs, we may be required to further reduce or slow planned spending, further reduce staffing, sell assets, seek alternative financing and take other measures, any of which could have a material adverse effect on our financial condition and operations.

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#### Generation Operating Portfolio, Project Assets and Backlog
To grow our generation operating portfolio, the Company may continue to invest in developing and building turn-key fuel cell projects, which will be owned by the Company and classified as project assets on the Consolidated Balance Sheets. This strategy requires liquidity and the Company expects to continue to have increasing liquidity requirements as project sizes increase and more projects are added to backlog. We may commence building project assets upon the award of a project or execution of a multi-year PPA with an end-user that has a strong credit profile. Project development and construction cycles, which span the time between securing a PPA and commercial operation of the platform, vary substantially and can take years. As a result of these project cycles and strategic decisions to finance the construction of certain projects, we may need to make significant up-front investments of resources in advance of the receipt of any cash from the sale or long-term financing of such projects. To make these up-front investments, we may use our working capital, seek to raise funds through the sale of equity or debt securities, or seek other financing arrangements. Delays in construction progress and completing current projects in process within budget, or in completing financing or the sale of our projects may impact our liquidity in a material way.

Our generation operating portfolio totaled 62.8 MW as of October 31, 2025. We expect generation revenue to continue to grow as additional projects achieve commercial operation, but this revenue amount may also fluctuate from year to year depending on platform output, operational performance and management and site conditions. The Company actively markets its products in order to grow this portfolio; however, the Company may also sell certain projects to investors from time to time. As of October 31, 2025, the Company had one project representing an additional 7.4 MW in development, which is expected to generate operating cash flows in future periods, if completed. We have worked with and are continuing to work with lenders and financial institutions to secure construction financing, long-term debt, tax equity and sale-leasebacks for our project asset portfolio, but there can be no assurance that such financing can be attained, or that, if attained, it will be retained and sufficient.

As of October 31, 2025, net debt outstanding related to project assets was $106.1 million. Future required payments, inclusive of principal and interest, totaled $122.1 million as of October 31, 2025. The outstanding finance obligations under our sale-leaseback transactions, which totaled $18.8 million as of October 31, 2025, include an embedded gain of $12.0 million representing the current carrying value of finance obligations less future required payments, which will be recognized at the end of the applicable lease terms should the Company repurchase the assets at the end of the term.

*Generation Operating Portfolio*

Our generation operating portfolio provides us with the full benefit of future cash flows, net of any debt service requirements.

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The following table summarizes our generation operating portfolio as of October 31, 2025:

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Project Name** | **Location** | **Power Off - Taker** | **RatedCapacity(MW)** <sup>(1)</sup> | **ActualCommercialOperation Date(FuelCell EnergyFiscal Quarter)** | **PPA Term(Years)** |
| Central CT State University<br>("CCSU") | New Britain, CT | CCSU (CT University) | 1.4 | Q2 '12 | 15 |
| Riverside Regional Water<br>Quality Control Plant | Riverside, CA | City of Riverside (CA Municipality) | 1.4 | Q4 '16 | 20 |
| Pfizer, Inc.  | Groton, CT | Pfizer, Inc. | 5.6 | Q4 '16 | 20 |
| Santa Rita Jail | Dublin, CA | Alameda County, California  | 1.4 | Q1 '17 | 20 |
| Bridgeport Fuel Cell Project | Bridgeport, CT | Connecticut Light and Power Company (CT Utility) | 14.9 | Q1 '13 | 15 |
| Tulare BioMAT | Tulare, CA | Southern California Edison (CA Utility) | 2.8 | Q1 '20 | 20 |
| San Bernardino | San Bernardino, CA | City of San Bernardino Municipal Water Department | 1.4 | Q3 '21 | 20 |
| LIPA Yaphank Project | Long Island, NY | PSEG / LIPA, LI NY (Utility) | 7.4 | Q1 '22 | 20 |
| Groton Project | Groton, CT | CMEEC (CT Electric Co-op) | 7.4<br><sup>(2)</sup> | Q1 '23 | 20 |
| Toyota | Long Beach, CA | Southern California Edison; Toyota  | 2.3 | Q1 '24 | 20 |
| Derby - CT RFP-2 | Derby, CT | Eversource/United Illuminating (CT Utilities) | 14.0 | Q1 '24 | 20 |
| SCEF - Derby | Derby, CT | Eversource/United Illuminating (CT Utilities) | 2.8 | Q1 '24 | 20 |
|  |  | **Total MW Operating:** | **62.8** |  |  |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Rated capacity is the platform's design rated output as of the date of initiation of commercial operations, except with respect to the Groton Project.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) The Groton Project was previously operating (including as of the date of initiation of commercial operations) at a reduced output of approximately 6.0 MW. During the first quarter of fiscal year 2024, the Groton Project reached its design rated output of 7.4 MW.

*Generation Projects in Process*

In January 2025, we entered into a PPA with Eversource and United Illuminating in Hartford, Connecticut, for a 7.4 MW carbonate fuel cell power generation system. Power from this project will be sold to Eversource and United Illuminating through the 20-year term of the PPA. The current expectation is that we will complete construction in calendar year 2026 and commence commercial operations in December 2026, subject in each case to completing customary development steps and obtaining financing for the project.

*Generation Projects No Longer in Process*

During fiscal year 2022, we entered into a PPA with Trinity College in Hartford, Connecticut, for a 250 kW solid oxide fuel cell power generation system, and in March 2024, we entered into a PPA with the University of Connecticut ("UConn"), in Storrs, Connecticut, for four 250 kW solid oxide fuel cell power generation systems totaling 1 MW. As a result of our restructuring plans and the slowdown in the adoption of clean energy technology for the production of zero-carbon hydrogen and other energy transition solutions, we have ceased all work and spending on the Trinity and UConn projects and removed them from contracted backlog during the second quarter of fiscal year 2025. In addition, the Company and Trinity College mutually agreed to terminate the PPA for the 250 kW solid oxide fuel cell power generation system in May 2025, and the Company is currently in discussions with UConn regarding a modification of the PPA for the four 250 kW solid oxide fuel cell power generation systems to potentially convert this project into a carbonate fuel cell

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project. For more information about our restructuring plans, please see Part II, Item 8, Note 4 — *Impairment and Restructuring*.

*Backlog*

Backlog by revenue category is as follows:

● Service agreements backlog totaled $162.4 million as of October 31, 2025, compared to $174.2 million as of October 31, 2024. Service agreements backlog includes future contracted revenue from maintenance and scheduled module exchanges for power plants under service agreements. During the year ended October 31, 2025, the Company entered into a LTSA with CGN-Yulchon Generation Co., Ltd. ("CGN") for CGN's Yulchon facility in South Korea (the "CGN Platform"). The contract value totaled approximately $31.7 million, of which approximately $7.7 million was allocated to service backlog at the time of the execution of the LTSA and will be recognized as revenue as the Company performs service at the CGN Platform over the term of the LTSA.

● Generation backlog totaled $945.2 million and $841.4 million as of October 31, 2025 and October 31, 2024, respectively. Generation backlog represents future contracted energy sales under contracted PPAs or approved utility tariffs. During the year ended October 31, 2025, the Company entered into a 20-year PPA with Eversource and United Illuminating, pursuant to which the Company will build and operate a 7.4 MW carbonate fuel cell power plant in Hartford, Connecticut (the "Hartford Project"). The electricity generated by the plant will be sold to Eversource and United Illuminating. The revenue over the contract term is expected to total approximately $167.4 million, which has been added to Generation backlog.

● Product backlog totaled $66.2 as of October 31, 2025, compared to $111.3 million as of October 31, 2024. Product backlog decreased during the year ended October 31, 2025 primarily as a result of the product backlog that was recognized as revenue as the Company completed commissioning of certain replacement modules for GGE's 58.8 MW fuel cell power platform in Hwaseong-si, South Korea (the "GGE Platform"). Under the LTSA with GGE (the "GGE LTSA"), commissioning of the first six 1.4-MW replacement fuel cell modules was completed in the fourth quarter of fiscal year 2024, and commissioning of an additional 22 1.4-MW replacement fuel cell modules was completed in fiscal year 2025. The remaining 14 1.4-MW replacement fuel cell modules are expected to be commissioned in fiscal year 2026. Partially offsetting this decrease was the LTSA with CGN, which added $24.0 million to product backlog during fiscal year 2025.

● Advanced Technologies contract backlog totaled $19.5 million as of October 31, 2025, compared to $36.0 million as of October 31, 2024. Advanced Technologies contract backlog primarily represents remaining revenue under our Joint Development Agreement with EMTEC and remaining revenue under our government contracts.

Overall, backlog increased by approximately 2.6% to $1.19 billion as of October 31, 2025, compared to $1.16 billion as of October 31, 2024, primarily as a result of the Hartford Project and the LTSA with CGN with respect to the CGN Platform.

The CGN Platform is comprised of four SureSource 3000 molten carbonate fuel cells (each a "CGN Plant"). Each CGN Plant is comprised of two carbonate fuel cell modules. Pursuant to the LTSA between CGN and the Company (the "CGN LTSA"), CGN and the Company have agreed that (i) CGN will purchase from the Company eight carbonate fuel cell modules to replace existing fuel cell modules at the CGN Platform, (ii) the Company will provide certain balance of plant replacement components if and to the extent the parties reasonably determine existing components should be replaced, and (iii) the Company will provide long term operations and maintenance services for the CGN Platform. The total amount payable by CGN under the CGN LTSA for the eight replacement fuel cell modules, balance of plant replacement components, and service is $31.7 million USD, with payments to be made over time as such replacement fuel cell modules are commissioned and the service obligations under the CGN LTSA for such CGN Plants commence. This amount was recorded as backlog concurrent with the execution of the CGN LTSA on July 30, 2025.

Backlog represents definitive agreements executed by the Company and our customers. Projects for which we have an executed PPA are included in generation backlog, which represents future revenue under long-term PPAs. The Company's ability to recognize revenue in the future under a PPA is subject to the Company's completion of construction of the project

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covered by such PPA. Should the Company not complete the construction of the project covered by a PPA, it will forgo future revenues with respect to the project and may incur penalties and/or impairment charges related to the project. Projects sold to customers (and not retained by the Company) are included in product sales and service agreements backlog, and the related generation backlog is removed upon sale. Together, the service and generation portion of backlog had a weighted average term of approximately 15 years as of October 31, 2025, with weighting based on the dollar amount of backlog and utility service contracts of up to 20 years in duration at inception.

#### Factors that may impact our liquidity
Factors that may impact our liquidity in fiscal year 2026 and beyond include:

● The Company's cash on hand and access to additional liquidity. As of October 31, 2025, unrestricted cash and cash equivalents totaled $278.1 million.

● We bid on large projects in diverse markets that can have long decision cycles and uncertain outcomes.

● We manage production rate based on contracted demand and project schedules. Changes to production rate take time to implement. We operated at an annualized production rate of 31.5 MW for the fiscal year ended October 31, 2025, compared to an annualized production rate of approximately 27.7 MW for the fiscal year ended October 31, 2024. This increase in annualized production rate is primarily due to increasing our production levels in our Torrington facility based on contracted demand.

● As project sizes and the number of projects evolve, project cycle times may increase. We may need to make significant up-front investments of resources in advance of the receipt of any cash from the financing or sale of our projects. These amounts include development costs, interconnection costs, costs associated with posting of letters of credit, bonding or other forms of security, and engineering, permitting, legal, and other expenses.

● The amount of accounts receivable and unbilled receivables as of October 31, 2025 and 2024 was $135.1 million ($82.1 million of which is classified as "Other assets") and $76.9 million ($28.3 million of which is classified as "Other assets"), respectively. Unbilled accounts receivable represent revenue that has been recognized in advance of billing the customer under the terms of the underlying contracts. Such costs have been funded with working capital and the unbilled amounts are expected to be billed and collected from customers once we meet the billing criteria under the contracts. Our accounts receivable balances may fluctuate as of any balance sheet date depending on the timing of individual contract milestones and progress on completion of our projects.

During the fiscal year ended October 31, 2024, the Company entered into the GGE LTSA with respect to the GGE Platform. The contract value totaled approximately $159.6 million, of which approximately $33.6 million was allocated to service at the time of the execution of the GGE LTSA and is being recognized as revenue as the Company performs service at the GGE Platform over the term of the GGE LTSA. The portion of the contract allocated to product sales was approximately $126.0 million at the time of the execution of the GGE LTSA, which equates to approximately $3.0 million per module for each of the 42 modules. The GGE LTSA was structured such that the total consideration for each module is payable over the seven-year term of the GGE LTSA with respect to such module. As a result, an unbilled asset value is created upon each module installation until such time as full payment is received over the seven-year term of the GGE LTSA with respect to such module. Thus, we expect the unbilled receivables to increase as the modules are installed. In return for extended payment terms related to the module product sales, the Company received security rights on each module which provides the opportunity for working capital financing.

In October 2024 and November 2025, we received working capital financing in an aggregate gross amount of $35.1 million from the Export-Import Bank of the United States to support the Company's obligations under the GGE LTSA, and we entered into promissory notes and related security agreements securing the loans with equipment liens. As we continue to fulfill our obligations under the GGE LTSA, we continue to seek additional working capital financing from certain financing institutions. There can be no assurance that we will obtain such working capital financing on acceptable terms, when needed, or at all.

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● The amount of total inventory as of October 31, 2025 and 2024 was $89.4 million ($3.2 million is classified as long-term inventory) and $116.4 million ($2.7 million is classified as long-term inventory), respectively, which includes work in process inventory totaling $54.2 million and $80.5 million, respectively. Work in process inventory can generally be deployed rapidly while the balance of our inventory requires further manufacturing prior to deployment. To execute on our business plan, we must produce fuel cell modules and procure balance of plant ("BOP") components in required volumes to support our planned construction schedules and potential customer contractual requirements. As a result, we may manufacture modules or acquire BOP components in advance of receiving payment for such activities. This may result in fluctuations in inventory and cash as of any given balance sheet date.

During the fiscal year ended October 31, 2025, we utilized short term cash to build our inventory of modules to be shipped to South Korea under the GGE LTSA. We have recognized revenue for the 22 modules shipped during the fiscal year ended October 31, 2025, and we expect to continue to recognize revenue from additional module shipments during fiscal year 2026. During the fiscal year ended October 31, 2025, we also used short term cash to build our inventory of modules to be shipped to South Korea under the CGN LTSA.

● The amount of total project assets as of October 31, 2025 and 2024 was $216.8 million and $242.1 million, respectively. Project assets consist of capitalized costs for fuel cell projects that are operating and producing revenue or are under construction. Project assets as of October 31, 2025 consisted of $216.1 million of completed, operating installations and $0.8 million of projects in development. As of October 31, 2025, we had 62.8 MW of operating project assets that generated $48.0 million of revenue for the year ended October 31, 2025.

● As of October 31, 2025, the Company had one project - the 7.4 MW Hartford Project - under development, which is expected to be completed by the end of calendar year 2027. As of October 31, 2025, we estimate the total remaining investment in project assets to build out the Hartford Project to be in the range of approximately $34.0 million to $36.0 million through calendar year 2027, with the timing of the project being paced by the electrical interconnection with the utility. To fund expected remaining project expenditures, the Company expects to use unrestricted cash on hand and to seek sources of construction financing. In addition, once the project becomes operational, the Company will seek to obtain permanent financing (tax equity and debt), or to sell this project to a third party. As of October 31, 2025, capitalized project asset expenditures with respect to the Hartford Project were $0.8 million.

● Certain of our PPAs for project assets in our generation operating portfolio expose us to fluctuating fuel price risks as well as the risk of being unable to procure the required amounts of fuel and the lack of alternative available fuel sources. We seek to mitigate our fuel risk using strategies including: (i) fuel cost reimbursement mechanisms in our PPAs to allow for pass through of fuel costs (full or partial) where possible, which we have done with our 14.9 MW operating project in Bridgeport, CT (the "Bridgeport Fuel Cell Project"); (ii) procuring fuel under fixed price physical supply contracts with investment grade counterparties, which we have done for twenty years for our Tulare BioMAT project, for the initial seven years of the twenty year PPA for our LIPA Yaphank Project (through September 2028), for six years of the twenty year PPA for our 14.0 MW and 2.8 MW Derby Projects (through October 2029), and for the initial three years of the twenty year hydrogen production and power purchase agreement for our Toyota project (through May 2026); and (iii) potentially entering into future financial hedges with investment grade counterparties to offset potential negative market fluctuations. The Company does not take a fundamental view on natural gas or other commodity pricing and seeks commercially available means to reduce commodity exposure. If the Company is unable to secure fuel on favorable economic terms, it may result in impairment charges.

● Expenditures for property, plant and equipment are expected to range between $20.0 million and $30.0 million for fiscal year 2026. We are increasing carbonate manufacturing capacity for certain processes in our Torrington facility to prepare for expected demand from the growing data center market.

During the year ended October 31, 2025, cash payments for capital expenditures totaled approximately $18.6 million.

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Our current plans with respect to our carbonate platform and solid oxide platforms are as follows:

**Carbonate Platform:** At this time, the maximum annualized capacity (module manufacturing, final assembly, testing and conditioning) is 100 MW per year under the Torrington facility's current configuration when fully utilized. We believe that the Torrington facility could accommodate an estimated annualized production capacity of up to 350 MW per year with additional capital investments in machinery, equipment, tooling, labor, outsourcing of certain processes, and inventory.

The Company continues to invest in capability with the goal of reducing production bottlenecks and driving productivity, including investments in automation, laser welding, and the construction of additional integrated conditioning capacity. The Company also constructed a SureSource 1500 in Torrington during fiscal year 2022, which operates as a testing facility for qualifying new supplier components and performance testing and validation of continued platform innovations, including carbon recovery. During fiscal years 2023 and 2024, the Company made investments to add engineered carbon separation capability to the onsite SureSource 1500. This addition was completed in fiscal year 2025. This product enhancement will allow potential customers to observe the operating plant and will allow for the sampling and testing of separated CO<sub>2</sub> to verify quantity, quality or purity requirements. In addition, the Company has begun manufacturing carbonate modules optimized for direct flue gas carbon capture at the Torrington facility.

**Solid Oxide Platforms:** Through fiscal year 2024, the Company invested in product development and manufacturing scale up for two solid oxide platforms: power generation and electrolysis. With the restructuring actions announced in November 2024 and June 2025, the Company has ceased development of the power generation platform and is focusing on demonstrating the capabilities of our electrolysis platform.

In November 2024 and June 2025, the Company announced global restructuring plans relating to our operations in the U.S., Canada, and Germany that aim to reduce operating costs, realign resources toward advancing the Company's core carbonate technologies, and protect the Company's competitive position amid slower-than-expected market investments in clean energy. These restructuring plans also include the deferment and cancelation of certain previously planned capital and project expenditures related to solid oxide manufacturing in our facility in Calgary, Canada. As a result of these restructuring plans, we have deferred the capital spending required to complete the Calgary expansion and do not currently expect to complete this project. For more information about our restructuring plans, please see Part II, Item 8, Note 4 — *Impairment and Restructuring*.

Lastly, the Company is in the process of examining or actively applying for various financial programs offered by the United States to provide subsidies, investment tax credits and other assistance with the goal of expanding capacity for clean energy manufacturing.

● Company-funded research and development expenses are expected to be in the range between $35.0 million and $40.0 million for fiscal year 2026. During the year ended October 31, 2025, we reduced Company-funded research and development expenses from approximately $55.4 million incurred in fiscal year 2024 to a total of $34.1 million incurred in fiscal year 2025, as a result of restructuring plans implemented during fiscal year 2025. Company-funded research and development expenses continued to focus on accelerating the commercialization of our distributed hydrogen generation during fiscal year 2025. Demonstration of our solid oxide electrolysis platform is being undertaken at Idaho National Laboratory ("INL") in conjunction with the U.S. Department of Energy and is intended as a steppingstone for a system level field demonstration of our solid oxide electrolysis platform. The demonstration unit was shipped to and arrived at INL in January 2025 and is fully installed. It is currently being tested by the Company and INL. We expect this solid oxide electrolysis platform will demonstrate its capabilities in the hydrogen generation market and are seeking partners to advance the commercialization and deployment of this technology. Finally, the Company will continue making targeted investments in product enhancements of our carbonate platform including advancing efficiency, power output and life as well as advancing commercial demonstrations of carbon capture and carbon recovery platforms.

● Under the terms of certain contracts, the Company provides and will provide performance security for future contractual obligations. As of October 31, 2025, we had pledged approximately $63.7 million of our cash and

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cash equivalents as collateral for performance security and for letters of credit for certain banking requirements and contracts. This balance may increase with a growing backlog and installed fleet.

● The Company's ability to continue to implement cost saving measures if sales activities do not occur when expected. The Company made in fiscal year 2024 and continued to make in 2025 certain downward adjustments to expected spending as a result of the slower-than-expected pace of market developments, and in September 2024, November 2024 ,and June 2025, as part of its cost saving measures, the Company also eliminated jobs in certain areas, reducing its workforce by approximately 39% in the aggregate. The Company expects to continue to focus its strategy to respond to market conditions, which may result in additional spending and headcount reductions in future periods.

**Depreciation and Amortization**

As the Company builds project assets and makes capital expenditures, depreciation and amortization expenses are expected to increase. For the years ended October 31, 2025 and 2024, depreciation and amortization totaled $40.4 million and $36.2 million, respectively (of these totals, approximately $32.4 million and $28.2 million for the years ended October 31, 2025 and 2024, respectively, relate to depreciation of project assets in our generation operating portfolio and amortization of a generation intangible asset).

#### Cash Flows
Cash and cash equivalents and restricted cash and cash equivalents totaled $341.8 million as of October 31, 2025 compared to $208.9 million as of October 31, 2024. As of October 31, 2025, unrestricted cash and cash equivalents was $278.1 million compared to $148.1 million of unrestricted cash and cash equivalents as of October 31, 2024. As of October 31, 2025, restricted cash and cash equivalents was $63.7 million, of which $16.6 million was classified as current and $47.1 million was classified as non-current, compared to $60.8 million of restricted cash and cash equivalents as of October 31, 2024, of which $12.2 million was classified as current and $48.6 million was classified as non-current.

The following table summarizes our consolidated cash flows:

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| | | | |
|:---|:---|:---|:---|
|  | **Year Ended October 31,** | **Year Ended October 31,** | **Year Ended October 31,** |
| (dollars in thousands) | **2025** | **2024** | **2023** |
| Consolidated Cash Flow Data: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Net cash used in operating activities | $&nbsp;&nbsp;&nbsp;&nbsp;(125291) | $&nbsp;&nbsp;&nbsp;&nbsp;(152906) | $&nbsp;&nbsp;&nbsp;&nbsp;(140250) |
| &nbsp;&nbsp;&nbsp;&nbsp;Net cash provided by (used in) investing activities | 88861 | (60049) | (192365) |
| &nbsp;&nbsp;&nbsp;&nbsp;Net cash provided by financing activities | 169262 | 122151 | 151067 |
| &nbsp;&nbsp;&nbsp;&nbsp;Effects on cash from changes in foreign currency rates | 77 | 111 | 80 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net increase (decrease) in cash, cash equivalents and restricted cash | $&nbsp;&nbsp;&nbsp;&nbsp;132909 | $&nbsp;&nbsp;&nbsp;&nbsp;(90693) | $&nbsp;&nbsp;&nbsp;&nbsp;(181468) |

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The key components of our cash inflows and outflows were as follows:

***Operating Activities*** – Net cash used in operating activities was $125.3 million during fiscal year 2025, compared to net cash used in operating activities of $152.9 million in fiscal year 2024 and net cash used in operating activities of $140.3 million in fiscal year 2023.

Net cash used in operating activities during fiscal year 2025 was primarily a result of the net loss of $191.4 million, increases in unbilled receivables of $66.1 million, other assets of $5.9 million and decreases in accounts payable of $2.8 million, partially offset by decreases in accounts receivable of $7.8 million and inventories of $15.9 million, and non-cash adjustments of $117.2 million.

Net cash used in operating activities during fiscal year 2024 was primarily a result of the net loss of $156.8 million, increases in inventories of $29.2 million, unbilled receivables of $23.0 million, accounts receivable of $7.9 million and other assets of $5.4 million and a decrease in accounts payable of $1.0 million, partially offset by increases in accrued liabilities of $4.7 million and accounts payable of $4.1 million and non-cash adjustments of $63.0 million.

Net cash used in operating activities during fiscal year 2023 was primarily a result of the net loss of $108.1 million, increases in unbilled receivables of $21.9 million and other assets of $13.1 million and decreases in deferred revenue of

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$22.3 million and accrued liabilities of $4.5 million, partially offset by decreases in inventories of $4.7 million and accounts receivable of $1.1 million, an increase in accounts payable of $3.0 million and non-cash adjustments of $22.0 million.

***Investing Activities*** – Net cash provided by investing activities was $88.9 million during fiscal year 2025, compared to net cash used in investing activities of $60.0 million in fiscal year 2024 and $192.4 million in fiscal year 2023.

Net cash provided by investing activities during fiscal year 2025 included $772.4 million received upon the maturity of U.S. Treasury Securities, partially offset by $661.0 million used for the purchase of U.S. Treasury Securities, $18.6 million of capital expenditures and $3.9 million of project asset expenditures.

Net cash used in investing activities during fiscal year 2024 included $835.7 million for the purchase of U.S. Treasury Securities, $47.7 million of capital expenditures and $11.8 million of project asset expenditures, partially offset by funds received from the maturity of U.S. Treasury Securities of $835.2 million.

Net cash used in investing activities during fiscal year 2023 included $299.1 million for the purchase of U.S. Treasury Securities, $53.0 million of project asset expenditures and $39.4 million of capital expenditures, partially offset by funds received from the maturity of U.S. Treasury Securities of $199.1 million.

***Financing Activities*** – Net cash provided by financing activities was $169.3 million during fiscal year 2025, compared to $122.2 million in fiscal year 2024 and $151.1 million in fiscal year 2023.

Net cash provided by financing activities during fiscal year 2025 resulted from $185.7 million of net proceeds from sales of common stock and $4.0 million of contributions received from the sale of a noncontrolling interest, partially offset by debt repayments of $14.4 million, payments of debt issuance costs of $0.2 million, payments for taxes related to net share settlement of equity awards of $0.6 million, payment of $3.2 million in preferred dividends to the holders of our Series B Preferred Stock and distribution to noncontrolling interests of $2.1 million.

Net cash provided by financing activities during fiscal year 2024 resulted from $23.1 million of proceeds from debt financings, $92.6 million of net proceeds from sales of common stock and $25.1 million of contributions received from the sale of a noncontrolling interest, offset by debt repayments of $11.7 million, payments of debt issuance costs of $1.2 million, payments for taxes related to net share settlement of equity awards of $1.1 million, payment of $3.2 million in preferred dividends to the holders of our Series B Preferred Stock and distribution to noncontrolling interests of $1.6 million.

Net cash provided by financing activities during fiscal year 2023 resulted from $100.5 million of proceeds from debt financings, $97.4 million of net proceeds from sales of common stock and $9.1 million of contributions received from the sale of a noncontrolling interest, partially offset by debt repayments of $47.8 million, payments of debt issuance costs of $3.5 million, payments for taxes related to net share settlement of equity awards of $0.9 million, payment of $3.2 million in preferred dividends to the holders of our Series B Preferred Stock and distribution to noncontrolling interests of $0.6 million.

#### Sources and Uses of Cash and Investments
In order to consistently produce positive cash flow from operations, we need to increase order flow to support higher production levels, leading to lower costs on a per unit basis. We also continue to invest in new product and market development and, as a result, we are not generating positive cash flow from our operations. Our principal sources of cash have been proceeds from the sale of our products and projects, electricity generation revenues, research and development and service agreements with third parties, sales of our common stock through public equity offerings, and proceeds from debt, project financing and tax monetization transactions.

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#### Commitments and Significant Contractual Obligations
The following table provides a summary of our significant future commitments and contractual obligations as of October 31, 2025 and the related payments by fiscal year:

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | **Payments Due by Period** | **Payments Due by Period** | **Payments Due by Period** | **Payments Due by Period** | **Payments Due by Period** |
| (dollars in thousands) | **Total** | **Less than1 Year** | **1 – 3Years** | **3 – 5Years** | **More than5 Years** |
| Purchase commitments <sup>(1)</sup> | $59806 | $53879 | $3295 | $2630 | $2 |
| Term loans (principal and interest) | 131587 | 18347 | 31560 | 62457 | 19223 |
| Operating lease commitments <sup>(2)</sup> | 24654 | 1463 | 3392 | 2371 | 17428 |
| Sale-leaseback finance obligations <sup>(3)</sup> | 6784 | 1395 | 2604 | 2339 | 446 |
| Natural gas and biomethane gas supply contracts <sup>(4)</sup> | 35619 | 11583 | 17508 | 6528 | - |
| Series B Preferred dividends payable <sup>(5)</sup> | - | - | - | - | - |
| **Totals** | $258450 | $86667 | $58359 | $76325 | $37099 |

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&nbsp;&nbsp;&nbsp;&nbsp;(1) Purchase commitments with suppliers for materials, supplies and services incurred in the normal course of business.

&nbsp;&nbsp;&nbsp;&nbsp;(2) Future minimum lease payments on operating leases.

&nbsp;&nbsp;&nbsp;&nbsp;(3) Represents payments due under sale-leaseback transactions and related financing agreements between certain of our wholly-owned subsidiaries and Crestmark Equipment Finance ("Crestmark"). Lease payments for each lease under these financing agreements are generally payable in fixed quarterly installments over a 10-year period.

&nbsp;&nbsp;&nbsp;&nbsp;(4) During fiscal year 2020, the Company entered into a 7-year natural gas contract for the Company's LIPA Yaphank Project with an estimated annual cost per year of $2.0 million, under which service began on December 7, 2021. During fiscal year 2023, the Company entered into a 2-year Biomethane gas contract for the Company's Toyota project, under which service began on May 1, 2023. Also, during fiscal year 2023, the Company entered into (a) a 6-year natural gas contract for the Company's 14.0 MW Derby Project, under which service began on June 1, 2023, and (b) a 6-year natural gas contract for the Company's 2.8 MW SCEF Derby Project, under which service began in November 2023. During fiscal year 2025, the Company entered into a 1-year natural gas contract for the Company's Toyota project (due to the expiration of the initial 2-year Biomethane gas contract described above), under which service began on May 1, 2025. The costs of the contracts are expected to be offset by generation revenues.

&nbsp;&nbsp;&nbsp;&nbsp;(5) We pay $3.2 million in annual dividends on our Series B Preferred Stock, if and when declared. The $3.2 million annual dividend payment, if dividends are declared, has not been included in this table as we cannot reasonably determine when or if we will be able to convert the Series B Preferred Stock into shares of our common stock. We may, at our option, convert these shares into the number of shares of our common stock that are issuable at the then prevailing conversion rate if the closing price of our common stock exceeds 150% of the then prevailing conversion price ($50,760 per share as of October 31, 2025) for 20 trading days during any consecutive 30 trading day period.

*Outstanding Loans as of October 31, 2025*

A discussion of the key terms and conditions of the loans outstanding as of October 31, 2025 is included in Note 12. "Debt" to the consolidated financial statements and is incorporated by reference herein. The information included under the headings "2024 EXIM Financing," "OpCo Financing Facility," "Derby Back Leverage Financing," "Groton Back Leverage Financing," "State of Connecticut Loan," and "Finance obligations for sale-leaseback agreements" in Note 12. "Debt" to the consolidated financial statements is incorporated herein by reference.

*Restricted Cash*

As of October 31, 2025, we have pledged approximately $63.7 million of our cash and cash equivalents as performance security and for letters of credit for certain banking requirements and contracts. As of October 31, 2025, outstanding letters of credit totaled $12.7 million. These expire on various dates through October 2029. Under the terms of certain contracts, we will provide performance security for future contractual obligations. The restricted cash balance as of October 31, 2025 also included $2.9 million primarily to support obligations under the power purchase and service agreements related to Crestmark sale-leaseback transactions, $16.5 million relating to future obligations associated with the Groton Senior Back Leverage Loan Facility, the Derby Senior Back Leverage Loan Facility, the Groton Subordinated Back Leverage Loan Facility, and the Derby Subordinated Back Leverage Loan Facility, and $22.5 million relating to future obligations associated with the OpCo Financing Facility. Refer to Note 12. "Debt" to our Consolidated Financial Statements for the

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year ended October 31, 2025 included in this Annual Report on Form 10-K for a more detailed discussion of the Company's restricted cash balance.

*Power purchase agreements*

Under the terms of our PPAs, customers agree to purchase power or other value streams, such as hydrogen, steam, water, and/or carbon, delivered from the Company's fuel cell power platforms at negotiated rates. Electricity rates are generally a function of the customers' current and estimated future electricity pricing available from the grid. We are responsible for all operating costs necessary to maintain, monitor and repair our fuel cell power platforms. Under certain agreements, we are also responsible for procuring fuel, generally natural gas or biogas, to run our fuel cell power platforms. In addition, under certain agreements, we are required to produce minimum amounts of power under our PPAs and we have the right to terminate PPAs by giving written notice to the customer, subject to certain exit costs. As of October 31, 2025, our generation operating portfolio was 62.8 MW.

*Service and warranty agreements*

We warranty our products for a specific period of time against manufacturing or performance defects. Our standard U.S. warranty period is generally 15 months after shipment or 12 months after acceptance of the product. In addition to the standard product warranty, we have contracted with certain customers to provide services to ensure the power plants meet minimum operating levels for terms of up to 20 years. Pricing for service contracts is based upon estimates of future costs, which could be materially different from actual expenses. Refer to "Critical Accounting Policies and Estimates" for additional details.

*Advanced Technologies contracts*

We have contracted with various government agencies and certain companies from private industry to conduct research and development as either a prime contractor or sub-contractor under multi-year, cost-reimbursement and/or cost-share type contracts or cooperative agreements. Cost-share terms require that participating contractors share the total cost of the project based on an agreed upon ratio. In many cases, we are reimbursed only a portion of the costs incurred or to be incurred under the contract. While government research and development contracts may extend for many years, funding is often provided incrementally on a year-by-year basis if contract terms are met and Congress authorizes the funds. As of October 31, 2025, Advanced Technologies contract backlog totaled $19.5 million, of which $13.8 million is non-U.S. Government-funded and $5.7 million is U.S. Government-funded.

*Off-Balance Sheet Arrangements*

We have no off-balance sheet debt or similar obligations which are not classified as debt. We do not guarantee any third-party debt. See Note 20. "Commitments and Contingencies" to our consolidated financial statements for the year ended October 31, 2025 included in this Annual Report on Form 10-K for further information.

#### CRITICAL ACCOUNTING POLICIES AND ESTIMATES
The preparation of financial statements and related disclosures in conformity with accounting principles generally accepted in the U.S. ("U.S. GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingent assets and liabilities. Estimates are used in accounting for, among other things, revenue recognition, lease right-of-use assets and liabilities, excess, slow-moving and obsolete inventories, product warranty accruals, loss accruals on service agreements, share-based compensation expense, allowance for doubtful accounts, depreciation and amortization, impairment of goodwill and in-process research and development intangible assets, impairment of long-lived assets (including project assets), valuation of derivatives, and contingencies. Estimates and assumptions are reviewed periodically, and the effects of revisions are reflected in the consolidated financial statements in the period they are determined to be necessary. Due to the inherent uncertainty involved in making estimates, actual results in future periods may differ from those estimates.

Our critical accounting policies are those that are both most important to our financial condition and results of operations and require the most difficult, subjective or complex judgments on the part of management in their application, often as a

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result of the need to make estimates about the effect of matters that are inherently uncertain. Our accounting policies are set forth below.

#### Goodwill and Indefinite-Lived Intangibles
Goodwill represents the excess of the aggregate purchase price over the fair value of the net assets acquired in a business combination and is reviewed for impairment at least annually. The intangible asset represents indefinite-lived in-process research and development for cumulative research and development efforts associated with the development of solid oxide fuel cell stationary power generation and is also reviewed at least annually for impairment.

Accounting Standards Codification Topic 350, "Intangibles - Goodwill and Other" ("ASC 350") permits the assessment of qualitative factors to determine whether events and circumstances lead to the conclusion that it is necessary to perform the goodwill impairment test required under ASC 350.

The Company completed its annual impairment analysis of goodwill and in-process research and development assets as of July 31, 2025, determined that it was more likely than not that there was impairment of goodwill and the in-process research and development assets, and recognized an impairment expense as a result. For more information about the impairment, please see Part II, Item 8, Note 4 — *Impairment and Restructuring*.

#### Impairment of Long-Lived Assets (including Project Assets)
Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset group which pertains to specific projects may not be recoverable. If events or changes in circumstances indicate that the carrying amount of the asset group may not be recoverable, we compare the carrying amount of an asset group to future undiscounted net cash flows, excluding debt service costs, expected to be generated by the asset group and its ultimate disposition. If the sum of the undiscounted cash flows is less than the carrying value, the impairment to be recognized is measured by the amount by which the carrying amount of the asset group exceeds the fair value of the asset group.

As part of the adjusted net asset value method, which was used to establish the fair value of the equity in the Versa reporting unit (consisting of our subsidiaries, Versa Power Systems, Ltd. and Versa Power Systems, Inc.) for the annual impairment analysis of goodwill and IPR&D intangible assets, impairments of certain inventory and property, plant and equipment assets were also identified as impaired as of July 31, 2025, as the carrying values of these assets exceeded their fair values. For more information about the impairment, please see Part II, Item 8, Note 4 — *Impairment and Restructuring.* During the years ended October 31, 2024 and 2023, the Company recorded certain project asset impairment charges.

#### Revenue Recognition
The Company recognizes revenue in accordance with the guidance in Accounting Standards Codification ("ASC") Topic 606: *Revenue from Contracts with Customers* ("ASC 606"). Under ASC 606*,* the amount of revenue recognized for any goods or services reflects the consideration that the Company expects to be entitled to receive in exchange for those goods and services. To achieve this core principle, the Company applies the following five-step approach: (1) identify the contract with the customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to performance obligations in the contract; and (5) recognize revenue when or as a performance obligation is satisfied.

A contract is accounted for when there has been approval and commitment from both parties, the rights of the parties are identified, payment terms are identified, the contract has commercial substance and collectability of consideration is probable. Performance obligations under a contract are identified based on the goods or services that will be transferred to the customer that are both capable of being distinct and are distinct in the context of the contract. In certain instances, the Company has concluded distinct goods or services should be accounted for as a single performance obligation that is a series of distinct goods or services that have the same pattern of transfer to the customer. To the extent a contract includes multiple promised goods or services, the Company must apply judgment to determine whether the customer can benefit from the goods or services either on their own or together with other resources that are readily available to the customer (the goods or services are capable of being distinct) and if the promise to transfer the goods or services to the customer is separately identifiable from other promises in the contract (the goods or services are distinct in the context of the contract). If these criteria are not met, the promised goods or services are accounted for as a single performance obligation. The transaction price is determined based on the consideration that the Company will be entitled to in exchange for transferring

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goods or services to the customer. To the extent the transaction price includes variable consideration, the Company estimates the amount of variable consideration that should be included in the transaction price, generally utilizing the expected value method. Determining the transaction price requires judgment. If the contract contains a single performance obligation, the entire transaction price is allocated to the single performance obligation. Contracts that contain multiple performance obligations require an allocation of the transaction price to each performance obligation based on a relative standalone selling price basis. Standalone selling price is determined by the price at which the performance obligation is sold separately. If the standalone selling price is not observable through past transactions, the Company estimates the standalone selling price by taking into account available information such as market conditions and internally approved pricing guidelines related to the performance obligations. Performance obligations are satisfied either over time or at a point in time as discussed in further detail below. In addition, the Company's contracts with customers generally do not include significant financing components or non-cash consideration. The Company has elected practical expedients in the accounting guidance that allow for revenue to be recorded in the amount that the Company has a right to invoice, if that amount corresponds directly with the value to the customer of the Company's performance to date, and that allow the Company not to disclose related unsatisfied performance obligations. The Company records any amounts that are billed to customers in excess of revenue recognized as deferred revenue and revenue recognized in excess of amounts billed to customers as unbilled receivables.

Revenue streams are classified as follows:

**Product.** Includes the sale of completed project assets, sale and installation of fuel cell power platforms including site engineering and construction services, and the sale of modules, BOP components and spare parts to customers.

**Service.** Includes performance under long-term service agreements for power platforms owned by third parties.

**Generation.** Includes the sale of electricity under PPAs and utility tariffs from project assets retained by the Company. This also includes revenue received from the sale of other value streams from these assets including the sale of heat, steam, capacity and renewable energy credits.

**Advanced Technologies.** Includes revenue from customer-sponsored and government-sponsored Advanced Technologies projects.

See below for a discussion of revenue recognition under ASC 606 by disaggregated revenue stream.

*Completed project assets*

Contracts for the sale of completed project assets include the sale of the project asset, the assignment of the service agreement, and the assignment of the PPA. The relative stand-alone selling price is estimated and is used as the basis for allocation of the contract consideration. Revenue is recognized upon the satisfaction of the performance obligations, which includes the transfer of control of the project asset to the customer, which is when the contract is signed and the PPA is assigned to the customer. See below for further discussion regarding revenue recognition for service agreements.

Contractual payments related to the sale of the project asset and assignment of the PPA are generally received up-front. Payment terms for service agreements are generally ratable over the term of the agreement.

*Module Sales*

Contracts for module sales represent the sale of a completed fuel cell module at a contracted selling price. These contracts are on a per unit basis and revenue is recognized as each unit is completed and ready to ship and the performance obligation is satisfied. Payment terms for module sales are generally based on milestones achieved through the manufacturing timeline of the module.

*Service agreements*

Service agreements represent a single performance obligation whereby the Company performs all required maintenance and monitoring functions, including replacement of modules, to ensure the power platform(s) under the service agreement generate a minimum power output. To the extent the power platform(s) under service agreements do not achieve the minimum power output, certain service agreements include a performance guarantee penalty. Performance guarantee

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penalties represent variable consideration, which is estimated for each service agreement based on past experience, using the expected value method. The consideration for each service agreement is recognized over time using costs incurred to date relative to total estimated costs at completion to measure progress.

The Company reviews its cost estimates on service agreements on an annual basis and records any changes in estimates on a cumulative catch-up basis.

Loss accruals for service agreements are recognized to the extent that the estimated remaining costs to satisfy the performance obligation exceed the estimated remaining unrecognized consideration. Estimated losses are recognized in the period in which losses are identified.

Payment terms for service agreements are generally ratable over the term of the agreement.

*Advanced Technologies contracts*

Advanced Technologies contracts include the promise to perform research and development services and, as such, this represents one performance obligation. Revenue from most government sponsored Advanced Technologies projects is recognized as direct costs are incurred plus allowable overhead less cost share requirements, if any. Revenue is only recognized to the extent the contracts are funded. Revenue recognition for research performed under the Joint Development Agreement (as defined elsewhere herein) with EMTEC and for research performed under the purchase order received from Esso (as defined elsewhere herein) for the Rotterdam project also falls into the practical expedient category where revenue is recorded consistent with the amounts that are to be invoiced.

Payments are based on costs incurred for government sponsored Advanced Technologies. Payments under the Joint Development Agreement with EMTEC are based on time spent and material costs incurred.

*Generation revenue*

For certain project assets where customers purchase electricity from the Company under PPAs, the Company has determined that these agreements should be accounted for as operating leases pursuant to ASC 842, *Leases*. Revenue is recognized when electricity has been delivered based on the amount of electricity delivered at rates specified under the contracts. Generation revenue, to the extent the related PPAs are within the scope of ASC 606, include a performance obligation to provide 100% of the electricity output generated by the associated project asset to the customer. The promise to provide electricity over the term of the PPA represents a single performance obligation, as it is a promise to transfer a series of distinct goods or services that are substantially the same and that have the same pattern of transfer to the customer. Revenue is recognized over time as the customer simultaneously receives and consumes the benefits provided by the Company, and the Company satisfies its performance obligation. Revenue is recognized based on the output method as there is a directly observable output to the customer-electricity delivered to the customer and immediately consumed. Payments are based on actual power output and the contractual rate for electricity generated.

#### Variable Interest Entities and Noncontrolling Interests
The Company closed on a tax equity financing transaction on October 31, 2023 with Franklin Park 2023 FCE Tax Equity Fund, LLC ("Franklin Park"), a subsidiary of Franklin Park Infrastructure, LLC, for two fuel cell power plant installations - the 14.0 MW Derby Fuel Cell Project and the 2.8 MW SCEF Fuel Cell Project, both located in Derby, Connecticut (collectively, the "Derby Projects").

Under this partnership flip structure, a partnership, in this case Derby Fuel Cell Holdco, LLC (the "Derby Partnership"), was organized to acquire from FuelCell Energy Finance II, LLC, a wholly-owned subsidiary of the Company, all outstanding equity interests in the Derby Projects. We have determined we are the primary beneficiary in the Derby Partnership for accounting purposes as a Variable Interest Entity ("VIE") under U.S. GAAP. We have considered the provisions within the financing-related agreements (including the limited liability company agreement for the Derby Partnership) which grant us power to manage and make decisions affecting the operations of the Derby Partnership. We consider the rights granted to Franklin Park under the agreements to be more protective in nature than participatory. Therefore, we have determined under the power and benefits criterion of ASC Topic 810, *Consolidations* ("ASC 810") that we are the primary beneficiary of the Derby Partnership. As the primary beneficiary, we consolidate the financial position, results of operations and cash flows of the Derby Partnership in our consolidated financial statements, and all

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intercompany balances and transactions between us and the Derby Partnership are eliminated. We recognized Franklin Park's share of the net assets of the Derby Partnership as nonredeemable noncontrolling interests in our Consolidated Balance Sheets. The income or loss allocations reflected in our Consolidated Statements of Operations and Comprehensive Loss may create volatility in our reported results of operations, including potentially changing net loss attributable to stockholders to net income attributable to stockholders, or vice versa, from quarter to quarter.

In addition, the Company closed on a tax equity financing transaction in August 2021 with East West Bank for the 7.4 MW fuel cell project located on the U.S. Navy Submarine Base in Groton, CT (the "Groton Project"), which has been structured as a "partnership flip." A partnership (the "Groton Partnership") was organized with East West Bank to acquire from FuelCell Energy Finance II, LLC, a wholly-owned subsidiary of the Company, all of the outstanding equity interests in Groton Station Fuel Cell, LLC (the "Groton Project Company"). East West Bank has a conditional withdrawal right which they can exercise and which would require the Company to pay 101% of the amount contributed by East West Bank to date. In addition, under this partnership flip structure, the Company has an option to acquire all of the equity interests that East West Bank holds in the Groton Partnership starting approximately five and a half years after the Groton Project is operational. If the Company exercises this option, the exercise price to be paid by the Company will be the greater of (1) the fair market value of East West Bank's equity interest at the time the option is exercised, (2) five percent of the $15 million tax equity commitment and (3) East West Bank's claim in liquidation determined using the HLBV method.

The Groton Partnership is a VIE under U.S. GAAP. The Company has determined that it is the primary beneficiary in the Groton Partnership for accounting purposes. The Company has considered the provisions within the financing-related agreements (including the limited liability company agreement for the Groton Partnership) which grant the Company power to manage and make decisions affecting the operations of the Groton Partnership. The Company considers the rights granted to East West Bank under the agreements to be more protective in nature than participatory. Therefore, the Company has determined under the power and benefits criterion of ASC 810 that it is the primary beneficiary of the Groton Partnership. As the primary beneficiary, the Company consolidates in its consolidated financial statements the financial position, results of operations and cash flows of the Groton Partnership, and all intercompany balances and transactions between the Company and the Groton Partnership are eliminated in the consolidated financial statements. The Company recognized East West Bank's share of the net assets of the Groton Partnership, which was $3.0 million as of October 31, 2022, as a redeemable noncontrolling interest in mezzanine equity on its Consolidated Balance Sheets and reclassified the amount to nonredeemable noncontrolling interest upon commencement of operations of the related project asset in December 2022. Upon commencement of operations, the Company began to allocate profits and losses to the noncontrolling interest under the HLBV method.

Finally, the Company closed on a tax equity financing transaction in November 2021 with REI for the 7.4 MW fuel cell project (the "LIPA Yaphank Project") in Yaphank Long Island. REI's tax equity commitment totaled $12.4 million. This transaction was structured as a "partnership flip," which is a structure commonly used by tax equity investors in the financing of renewable energy projects. Under this partnership flip structure, a partnership, in this case YTBFC Holdco, LLC (the "Yaphank Partnership"), was organized to acquire from FuelCell Energy Finance II, LLC, a wholly-owned subsidiary of the Company, all outstanding equity interests in Yaphank Fuel Cell Park, LLC, which in turn owns the LIPA Yaphank Project and is the party to the power purchase agreement and all project agreements. REI holds Class A Units in the Yaphank Partnership and a subsidiary of the Company holds the Class B Units. Under a partnership flip structure, tax equity investors agree to receive a minimum target rate of return, typically on an after-tax basis. Prior to receiving a contractual rate of return or a date specified in the contractual arrangements, REI will receive substantially all of the non-cash value attributable to the LIPA Yaphank Project, which includes accelerated depreciation and Section 48(a) investment tax credits; however, the Company will receive a majority of the cash distributions (based on the operating income of the LIPA Yaphank Project), which are paid quarterly. After REI receives its contractual rate of return, the Company will receive approximately 95% of the cash and tax allocations.

The Yaphank Partnership is a VIE under U.S. GAAP. The Company has considered the provisions within the financing-related agreements (including the limited liability company agreement for the Yaphank Partnership) which grant us power to manage and make decisions affecting the operations of the Yaphank Partnership. We consider the rights granted to REI under the agreements to be more protective in nature than participatory. Therefore, we have determined under the power and benefits criterion of ASC 810 that we are the primary beneficiary of the Yaphank Partnership. As the primary beneficiary, we consolidate the financial position, results of operations and cash flows of the Yaphank Partnership in our consolidated financial statements, and all intercompany balances and transactions between us and the Yaphank Partnership are eliminated. The Company recognized REI's share of the net assets of the Yaphank Partnership as noncontrolling interests in its Consolidated Balance Sheets. The income or loss allocations reflected in our Consolidated Statements of

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Operations and Comprehensive Loss may create volatility in our reported results of operations, including potentially changing net loss attributable to stockholders to net income attributable to stockholders, or vice versa, from quarter to quarter. The Company allocates profits and losses to REI's noncontrolling interest under the HLBV method.

See Note 3. "Tax Equity Financings and Investment Tax Credit Sale" for additional information regarding the tax equity financing transactions with Franklin Park, East West Bank and REI.

#### Sale-Leaseback Accounting
The Company, through certain wholly-owned subsidiaries, has entered into sale-leaseback transactions for commissioned project assets where we have entered into a PPA with a customer who is both the site host and end user of the power. Due to the Company not meeting criteria to account for the transfer of the project assets as a sale since the leases include a repurchase right, sale accounting is precluded. Accordingly, the Company uses the financing method to account for these transactions.

Under the financing method of accounting for a sale-leaseback, the Company does not derecognize the project assets and does not recognize as revenue any of the sale proceeds received from the lessor that contractually constitutes payment to acquire the assets subject to these arrangements. Instead, the sale proceeds received are accounted for as finance obligations and leaseback payments made by the Company are allocated between interest expense and a reduction to the finance obligation. Interest on the finance obligation is calculated using the Company's incremental borrowing rate at the inception of the arrangement on the outstanding finance obligation. While we receive financing for the related project asset, we have not recognized revenue on the sale-leaseback transactions. Instead, revenue is recognized with respect to the related PPAs in accordance with the Company's accounting policies for recognizing generation revenues.

#### Inventories
Inventories consist principally of raw materials and work-in-process. Cost is determined using the first-in, first-out cost method. Included in our inventory balance are used modules that are brought back into inventory upon installation of new modules. When a new module is installed, a determination is made as to whether the used module has remaining useful life or should be scrapped and materials recycled. Modules that are deemed to have remaining useful life are put into inventory at an estimated value based on the expected remaining life of the module and its projected output. In certain circumstances, we will make advance payments to vendors for future inventory deliveries. These advance payments are recorded as Other current assets on the Consolidated Balance Sheets. Inventories are reviewed to determine net realizable value. This review includes analyzing inventory levels of individual parts considering the current design of our products and production requirements as well as the expected inventory requirements for maintenance on installed power platforms.

#### Service Expense Recognition
We have entered into service agreements with certain customers to provide monitoring, maintenance and repair services for fuel cell power platforms. Under the terms of these service agreements, the power platform must meet a minimum operating output during the term. If the minimum output falls below the contract requirement, we may be subject to performance penalties or may be required to repair and/or replace the customer's fuel cell module(s).

The Company records loss accruals for service agreements when the estimated cost of future module exchanges and maintenance and monitoring activities exceeds the remaining unrecognized contract value. Estimates for future costs on service agreements are determined by a number of factors, including the estimated remaining life of the module(s), used replacement modules available, and future operating plans for the power platform. Our estimates are performed on a contract by contract basis and include cost assumptions based on what we anticipate the service requirements will be to fulfill obligations for each contract. As of October 31, 2025 and 2024, our loss accruals on service agreements totaled $8.4 million and $9.0 million, respectively.

#### ACCOUNTING GUIDANCE UPDATE

#### 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

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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.

#### Recent Accounting Guidance Not Yet Effective
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.

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.

#### Item 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

#### Interest Rate Exposure Risk
The Company began to invest in U.S. Treasury Securities during fiscal year 2023. Outstanding U.S. Treasury Securities were classified as held-to-maturity and were recorded at amortized cost. The contractual maturities of the outstanding U.S. Treasury Securities as of October 31, 2024 were within one year and the weighted average yield to maturity was 4.78%. As of October 31, 2025, all of our previously-held U.S. Treasury Securities had matured and the funds received upon maturity were not reinvested.

Cash is invested overnight with high credit quality financial institutions and therefore we are not exposed to market risk on our cash holdings from changing interest rates. Based on our overall interest rate exposure as of October 31, 2025, including all interest rate sensitive instruments, a change in interest rates of 1% would not have a material impact on our results of operations.

#### Foreign Currency Exchange Risk
As of October 31, 2025, approximately 1% of our total cash and cash equivalents were in currencies other than U.S. dollars (primarily the Euro, Canadian dollars and Korean Won) and we have no plans of repatriation. We make purchases from certain vendors and receive payment from certain customers in currencies other than U.S. dollars. Although we have not experienced significant foreign exchange rate losses to date, we may in the future, especially to the extent that we do not engage in currency hedging activities. The economic impact of currency exchange rate movements on our operating results is complex because such changes are often linked to variability in real growth, inflation, interest rates, governmental actions and other factors. These changes, if material, may cause us to adjust our financing and operating strategies.

#### Derivative Fair Value Exposure Risk

#### Interest Rate Swap
On May 16, 2019, an interest rate swap agreement was entered into with Fifth Third Bank in connection with the May 2019 Credit Agreement with Liberty Bank, as administrative agent and co-lead arranger, and Fifth Third Bank as co-lead

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arranger and interest rate swap hedger (the "BFC Credit Agreement") for the term of the loan. The net interest rate across the BFC Credit Agreement and the swap transaction resulted in a fixed rate of 5.09%. The interest rate swap was adjusted to fair value on a quarterly basis. The estimated fair value was based on Level 2 inputs including primarily the forward LIBOR curve available to swap dealers. The valuation methodology involved comparison of (i) the sum of the present value of all monthly variable rate payments based on a reset rate using the forward LIBOR curve and (ii) the sum of the present value of all monthly fixed rate payments on the notional amount, which was equivalent to the outstanding principal amount of the loan. On August 1, 2022, the Company entered into an amendment to its interest rate swap agreement that replaced LIBOR with Term Secured Overnight Financing Rate ("SOFR") effective as of June 2023. The fair value adjustment for the year ended October 31, 2023 resulted in a $0.1 million loss. This interest rate swap agreement was terminated during fiscal year 2023 in connection with the payoff of the senior and subordinated indebtedness of the Company to Liberty Bank, Fifth Third Bank and Connecticut Green Bank related to the Bridgeport Fuel Cell Project.

On May 19, 2023, in connection with the closing of the OpCo Financing Facility, the Company entered into an ISDA 2002 Master Agreement and an ISDA Schedule to the 2002 Master Agreement with Investec Bank plc as a hedge provider, and an ISDA 2002 Master Agreement and an ISDA Schedule to the 2002 Master Agreement with Bank of Montreal (Chicago Branch) as a hedge provider. On May 22, 2023, OpCo Borrower executed the related trade confirmations for these interest rate swap agreements with these hedge providers to protect against adverse price movements in the floating SOFR rate associated with 100% of the aggregate principal balance of the Term Loan outstanding. Pursuant to the terms of such agreements, OpCo Borrower will pay a fixed rate of interest of 3.716%. The net interest rate across the Financing Agreement and the swap transaction is 6.366% in the first four years and 6.866% thereafter. The obligations of OpCo Borrower to the hedge providers under the interest rate swap agreements are treated as obligations under the Financing Agreement and, accordingly, are secured, on a pari passu basis, by the same collateral securing the obligations of OpCo Borrower under the Financing Agreement. The Company has not elected hedge accounting treatment and, as a result, the derivative will be remeasured to fair value quarterly with the resulting gains/losses recorded to other income/expense. The fair value adjustments for the years ended October 31, 2025 and 2024 resulted in losses of $0.7 million and $3.1 million, respectively.

#### Project Fuel Price Exposure Risk
Certain of our PPAs for project assets in our generation operating portfolio expose us to fluctuating fuel price risks as well as the risk of being unable to procure the required amounts of fuel and the lack of alternative available fuel sources. We seek to mitigate our fuel risk using strategies including: (i) fuel cost reimbursement mechanisms in our PPAs to allow for pass through of fuel costs (full or partial) where possible, which we have done with our 14.9 MW operating project in Bridgeport, CT; (ii) procuring fuel under fixed price physical supply contracts with investment grade counterparties, which we have done for twenty years for our Tulare BioMAT project, the initial seven years of the twenty year PPA for our LIPA Yaphank Project (through September 2028), six years of the twenty year PPA for our 14.0 MW and 2.8 MW Derby Projects (through October 2029), and the initial three years of the twenty year hydrogen production and power purchase agreement for our Toyota project (through May 2026); and (iii) potentially entering into future financial hedges with investment grade counterparties to offset potential negative market fluctuations. The Company does not take a fundamental view on natural gas or other commodity pricing and seeks commercially available means to reduce commodity exposure. If the Company is unable to secure fuel on favorable economic terms, it may result in impairment charges.

We currently have four projects with fuel sourcing risk, which are the Toyota project, our 14.0 MW and 2.8 MW Derby Projects and our 7.4 MW LIPA Yaphank Project, all of which require natural gas for which there is no pass-through mechanism. A fuel supply contract has been executed for the Toyota project through May 2026. Six-year (through October 2029) fuel supply contracts have been executed for the 14.0 MW and 2.8 MW Derby Projects. We are currently in the midst of a seven-year contract (through September 2028) for our 7.4 MW LIPA Yaphank Project. The Company will look to extend the duration of these contracts should market and credit conditions allow. If the Company is unable to secure fuel on favorable economic terms, it may result in impairment charges to the Derby Project assets or the LIPA Yaphank Project asset and further impairment charges for the Toyota project asset.

Historically, this risk has not been material to our financial statements as our operating projects prior to October 31, 2025 either did not have fuel price risk exposure, had fuel cost reimbursement mechanisms in our related PPAs to allow for pass through of fuel costs (full or partial), or had established long term fixed price physical supply contracts for fuel. To provide a meaningful assessment of the fuel price risk arising from price movements of natural gas, the Company performed a sensitivity analysis to determine the impact a change in natural gas commodity pricing would have on our Consolidated Statements of Operations and Comprehensive Loss (assuming that all projects with fuel price risk were operating). A

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$1/Metric Million British Thermal Unit ("MMBTu") increase in market pricing compared to our underlying project models would result in a cost impact of approximately $26,000 to our Consolidated Statements of Operations and Comprehensive Loss on an annual basis.

The Company net settled certain natural gas purchases under previous normal purchase normal sale contract designations during the fiscal year ended October 31, 2023 for one contract and during the second quarter of fiscal year 2024 for other contracts, recorded a mark-to-market derivative net gain during the year ended October 31, 2025 of $4.7 million, and recorded a mark-to-market derivative loss during the year ended October 31, 2024 of $6.9 million, as a result of the change to mark-to-market accounting.

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|:---|:---|
| **Item 8.** | **FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA** |

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|:---|:---|
| **Index to the Consolidated Financial Statements** | **Page** |
| [Report of Independent Registered Public Accounting Firm](#ReportofIndependentRegisteredPublicAccou) (PCAOB ID 185) | 80 |
| [Consolidated Balance Sheets at October 31, 2025 and 2024](#BalanceSheets_700447)  | 82 |
| [Consolidated Statements of Operations and Comprehensive Loss for the Years Ended October 31, 2025, 2024 and 2023](#OperationsandComprehensiveLoss_319764) | 83 |
| [Consolidated Statements of Changes in Equity for the Years Ended October 31, 2025, 2024 and 2023](#ChangesinEquity_241004) | 84 |
| [Consolidated Statements of Cash Flows for the Years Ended October 31, 2025, 2024 and 2023](#CashFlows_827489) | 85 |
| [Notes to Consolidated Financial Statements](#Note1NatureofBusinessBasisofPresentation) | 86 |

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**Report of Independent Registered Public Accounting Firm**

To the Stockholders and Board of Directors

FuelCell Energy, Inc.:

#### Opinions on the Consolidated Financial Statements and Internal Control Over Financial Reporting
We have audited the accompanying consolidated balance sheets of FuelCell Energy, Inc. and subsidiaries (the Company) as of October 31, 2025 and 2024, the related consolidated statements of operations and comprehensive loss, changes in equity, and cash flows for each of the years in the three-year period ended October 31, 2025, and the related notes (collectively, the consolidated financial statements). We also have audited the Company's internal control over financial reporting as of October 31, 2025, based on criteria established in *Internal Control – Integrated Framework (2013)* issued by the Committee of Sponsoring Organizations of the Treadway Commission.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of October 31, 2025 and 2024, and the results of its operations and its cash flows for each of the years in the three-year period ended October 31, 2025, in conformity with U.S. generally accepted accounting principles. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of October 31, 2025 based on criteria established in *Internal Control – Integrated Framework (2013)* issued by the Committee of Sponsoring Organizations of the Treadway Commission.

#### Basis for Opinions
The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management's Annual Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company's consolidated financial statements and an opinion on the Company's internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (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 audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.

Our audits of the consolidated financial statements 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. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

#### Definition and Limitations of Internal Control Over Financial Reporting
A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management

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and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

#### 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.

*Estimated costs at completion for certain service arrangements*

As discussed in Note 1 to the consolidated financial statements, the Company's service agreements represent a single performance obligation whereby the Company performs all required maintenance and monitoring functions, including replacement of modules, to ensure the power platforms under the service agreement generate a minimum power output. The consideration for each service agreement is recognized over time using costs incurred relative to the total estimated costs at completion to measure progress. The Company had service revenue of $20.4 million for the year ended October 31, 2025.

We identified the evaluation of total estimated costs at completion for certain service agreements as a critical audit matter. Specifically, evaluating the Company's total estimated costs at completion required complex auditor judgement to assess the estimated number of fuel cell modules to be replaced during the term of the agreements and their associated costs. These areas involved the application of significant estimation by management and contained significant measurement uncertainty.

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 over the Company's process to develop total estimated costs at completion for service agreements. This included a control related to the estimated number of fuel cell modules to be replaced during the term of the agreement and their associated costs. For certain service agreements, we evaluated the estimated number of fuel cell modules to be replaced and their associated costs by:

● comparing the estimated number of fuel cell modules to be replace to the replacement plan developed and maintained by the Company's service department

● comparing the total estimated costs to manufacture fuel cell modules to historical actual costs

● comparing current period total estimated costs at completion to previous total estimated costs at completion and assessing the cause of certain revisions

● assessing the number of fuel cell module replacements that are expected to occur during the contract term using the useful life of fuel cell modules

/s/ KPMG LLP

We have served as the Company's auditor since 1995.

Philadelphia, Pennsylvania

December 18, 2025

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#### FUELCELL ENERGY, INC.
**Consolidated Balance Sheets**

**October 31, 2025 and 2024**

**(Amounts in thousands, except share and per share amounts)**

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| | | |
|:---|:---|:---|
|  | **October 31,**<br>**2025** | **October 31,**<br>**2024** |
| **ASSETS** |  |  |
| Current assets: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Cash and cash equivalents, unrestricted | $278099 | $148133 |
| &nbsp;&nbsp;&nbsp;&nbsp;Restricted cash and cash equivalents - short-term | 16601 | 12161 |
| &nbsp;&nbsp;&nbsp;&nbsp;Investments - short-term | - | 109123 |
| &nbsp;&nbsp;&nbsp;&nbsp;Accounts receivable, net | 3999 | 11751 |
| &nbsp;&nbsp;&nbsp;&nbsp;Unbilled receivables | 49008 | 36851 |
| &nbsp;&nbsp;&nbsp;&nbsp;Inventories | 86196 | 113703 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other current assets | 15907 | 12736 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total current assets | 449810 | 444458 |
| Restricted cash and cash equivalents - long-term | 47092 | 48589 |
| Inventories - long-term | 3216 | 2743 |
| Project assets, net | 216847 | 242131 |
| Property, plant and equipment, net | 96436 | 130686 |
| Operating lease right-of-use assets, net | 11232 | 8122 |
| Goodwill | - | 4075 |
| Intangible assets, net | 3891 | 14779 |
| Other assets | 103622 | 48541 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total assets <sup>(1)</sup> | $932146 | $944124 |
| **LIABILITIES AND STOCKHOLDERS' EQUITY** |  |  |
| Current liabilities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Current portion of long-term debt | $15847 | $15924 |
| &nbsp;&nbsp;&nbsp;&nbsp;Current portion of operating lease liabilities | 932 | 807 |
| &nbsp;&nbsp;&nbsp;&nbsp;Accounts payable | 17009 | 22585 |
| &nbsp;&nbsp;&nbsp;&nbsp;Accrued liabilities | 31318 | 30362 |
| &nbsp;&nbsp;&nbsp;&nbsp;Deferred revenue | 2733 | 4226 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total current liabilities | 67839 | 73904 |
| Long-term deferred revenue | 5985 | 3010 |
| Long-term operating lease liabilities | 11954 | 8894 |
| Long-term debt and other liabilities | 115227 | 130850 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total liabilities <sup>(1)</sup> | 201005 | 216658 |
| Redeemable Series B preferred stock (liquidation preference of $64,020 as of <br>October 31, 2025 and October 31, 2024) | 59857 | 59857 |
| Total equity: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Stockholders' equity: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Common stock ($0.0001 par value); 1,000,000,000 shares authorized as of October 31, 2025 and October 31, 2024; 46,075,237 and 20,375,932 shares issued and outstanding as of October 31, 2025 and October 31, 2024, respectively | 5 | 2 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Additional paid-in capital | 2493318 | 2300031 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accumulated deficit | (1829449) | (1641550) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accumulated other comprehensive loss | (1695) | (1561) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Treasury stock, Common, at cost (44,913 and 12,543 shares as of October 31, 2025<br>and October 31, 2024, respectively) | (1406) | (1198) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred compensation | 1406 | 1198 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total stockholders' equity | 662179 | 656922 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Noncontrolling interests | 9105 | 10687 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total equity | 671284 | 667609 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total liabilities, redeemable Series B preferred stock and total equity | $932146 | $944124 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) As of October 31, 2025 and October 31, 2024, the combined assets of the variable interest entities ("VIEs") were $325,661 and $311,723 , respectively, that can only be used to settle obligations of the VIEs. These assets include cash of $2,490 , accounts receivable of $722 , unbilled accounts receivable of $12,865 , operating lease right of use assets of $1,643 , other current assets of $162,005 , restricted cash and cash equivalents of $731 , project assets of $141,414 , derivative assets of 2,047 and other assets of $1,743 as of October 31, 2025, and cash of $2,891 , restricted cash and cash equivalents of $639 , accounts receivable of $674 , unbilled accounts receivable of $9,479 , other current assets of $135,756 , operating lease right of use assets of $1,663 , other assets of $3,018 and project assets of $157,604 as of October 31, 2024. The combined liabilities of the VIEs as of October 31, 2025 include short-term operating lease liabilities of $204 , accounts payable of $198,736 , accrued liabilities of $1,222 , derivative liabilities of $21 , long-term operating lease liability of $2,123 and other non-current liabilities of $307 and, as of October 31, 2024, include short-term operating lease liabilities of $204 , accounts payable of $181,274 , accrued liabilities of $341 , deferred revenue of $20 , derivative liabilities of $3,693 , long-term operating lease liability of $2,142 and other non-current liabilities of $240 .

See accompanying notes to consolidated financial statements.

[**Table of Contents**](#TOC)

**Consolidated Statements of Operations and Comprehensive Loss**

**For the Years Ended October 31, 2025, 2024, and 2023**

**(Amounts in thousands, except share and per share amounts)**

---

| | | | |
|:---|:---|:---|:---|
|  | **2025** | **2024** | **2023** |
| Revenues: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Product | $69129 | $25675 | $19589 |
| &nbsp;&nbsp;&nbsp;&nbsp;Service | 20398 | 9969 | 49084 |
| &nbsp;&nbsp;&nbsp;&nbsp;Generation | 48013 | 49975 | 37508 |
| &nbsp;&nbsp;&nbsp;&nbsp;Advanced Technologies | 20622 | 26513 | 17213 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total revenues | &nbsp;&nbsp;&nbsp;&nbsp;158162 | &nbsp;&nbsp;&nbsp;&nbsp;112132 | 123394 |
| Costs of revenues: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Product | 82853 | 39582 | 12878 |
| &nbsp;&nbsp;&nbsp;&nbsp;Service | 22634 | 11098 | 44953 |
| &nbsp;&nbsp;&nbsp;&nbsp;Generation | 63967 | 79861 | 62913 |
| &nbsp;&nbsp;&nbsp;&nbsp;Advanced Technologies | 15116 | 17509 | 13185 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total costs of revenues | &nbsp;&nbsp;&nbsp;&nbsp;184570 | &nbsp;&nbsp;&nbsp;&nbsp;148050 | 133929 |
| Gross loss | &nbsp;&nbsp;&nbsp;&nbsp;(26408) | &nbsp;&nbsp;&nbsp;&nbsp;(35918) | (10535) |
| Operating expenses: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Administrative and selling expenses | 60743 | 64604 | 64528 |
| &nbsp;&nbsp;&nbsp;&nbsp;Research and development expenses | 34079 | 55404 | 61021 |
| &nbsp;&nbsp;&nbsp;&nbsp;Restructuring expense | 5337 | 2562 | - |
| &nbsp;&nbsp;&nbsp;&nbsp;Impairment expense | 65781 | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total costs and expenses | &nbsp;&nbsp;&nbsp;&nbsp;165940 | &nbsp;&nbsp;&nbsp;&nbsp;122570 | &nbsp;&nbsp;&nbsp;&nbsp;125549 |
| Loss from operations | &nbsp;&nbsp;&nbsp;&nbsp;(192348) | &nbsp;&nbsp;&nbsp;&nbsp;(158488) | (136084) |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest expense | (10378) | (9690) | (7247) |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest income | 8313 | 13720 | 15795 |
| &nbsp;&nbsp;&nbsp;&nbsp;Gain on extinguishment of finance obligations and debt, net | - | - | 15337 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other income (expense), net | 3178 | (2295) | 4724 |
| Loss before provision for income taxes | (191235) | (156753) | (107475) |
| &nbsp;&nbsp;&nbsp;&nbsp;Provision for income taxes | (137) | (25) | (581) |
| Net loss  | &nbsp;&nbsp;&nbsp;&nbsp;(191372) | (156778) | (108056) |
| &nbsp;&nbsp;&nbsp;&nbsp;Net loss attributable to noncontrolling interests | (3473) | (30769) | (488) |
| Net loss attributable to FuelCell Energy, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;(187899) | &nbsp;&nbsp;&nbsp;&nbsp;(126009) | &nbsp;&nbsp;&nbsp;&nbsp;(107568) |
| &nbsp;&nbsp;&nbsp;&nbsp;Series B preferred stock dividends | &nbsp;&nbsp;&nbsp;&nbsp;(3200) | &nbsp;&nbsp;&nbsp;&nbsp;(3200) | &nbsp;&nbsp;&nbsp;&nbsp;(3200) |
| Net loss attributable to common stockholders | $&nbsp;&nbsp;&nbsp;&nbsp;(191099) | $&nbsp;&nbsp;&nbsp;&nbsp;(129209) | $&nbsp;&nbsp;&nbsp;&nbsp;(110768) |
| Loss per share basic and diluted: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Net loss per share attributable to common stockholders | $(7.42) | $(7.83) | $(7.92) |
| &nbsp;&nbsp;&nbsp;&nbsp;Basic and diluted weighted average shares outstanding | 25743252 | 16505257 | 13991593 |

---

---

| | | | |
|:---|:---|:---|:---|
|  | **2025** | **2024** | **2023** |
| Net loss | $&nbsp;&nbsp;&nbsp;&nbsp;(191372) | $&nbsp;&nbsp;&nbsp;&nbsp;(156778) | $&nbsp;&nbsp;&nbsp;&nbsp;(108056) |
| Other comprehensive (loss) income: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Foreign currency translation adjustments | &nbsp;&nbsp;&nbsp;&nbsp;(134) | 111 | &nbsp;&nbsp;&nbsp;&nbsp;80 |
| Total comprehensive loss | $&nbsp;&nbsp;&nbsp;&nbsp;(191506) | $&nbsp;&nbsp;&nbsp;&nbsp;(156667) | $&nbsp;&nbsp;&nbsp;&nbsp;(107976) |
| Comprehensive loss attributable to noncontrolling interests | &nbsp;&nbsp;&nbsp;&nbsp;(3473) | &nbsp;&nbsp;&nbsp;&nbsp;(30769) | &nbsp;&nbsp;&nbsp;&nbsp;(488) |
| Comprehensive loss attributable to FuelCell Energy, Inc. | $(188033) | $(125898) | $(107488) |

---

See accompanying notes to consolidated financial statements

[**Table of Contents**](#TOC)

**Consolidated Statements of Changes in Equity**

**For the Years Ended October 31, 2025, 2024, and 2023**

**(Amounts in thousands, except share amounts)**

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Common Stock** | **Common Stock** | | | | | | | | |
|  | **Shares** | **Amount** | <br>**AdditionalPaid-inCapital** | <br>**AccumulatedDeficit** | <br>**AccumulatedOtherComprehensiveLoss** | <br>**TreasuryStock** | <br>**DeferredCompensation** | <br>**Total Stockholders' Equity** | <br>**Noncontrolling Interests** | <br>**TotalEquity** |
| **Balance, October 31, 2022** | &nbsp;&nbsp;&nbsp;&nbsp;13518743 | $&nbsp;&nbsp;&nbsp;&nbsp;1 | $&nbsp;&nbsp;&nbsp;&nbsp;2094116 | $&nbsp;&nbsp;&nbsp;&nbsp;(1407973) | $&nbsp;&nbsp;&nbsp;&nbsp;(1752) | $&nbsp;&nbsp;&nbsp;&nbsp;(855) | $&nbsp;&nbsp;&nbsp;&nbsp;855 | $&nbsp;&nbsp;&nbsp;&nbsp;684392 | $&nbsp;&nbsp;&nbsp;&nbsp;7105 | $&nbsp;&nbsp;&nbsp;&nbsp;691497 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sale of common stock, net of fees | &nbsp;&nbsp;&nbsp;&nbsp;1477361 | &nbsp;&nbsp;&nbsp;&nbsp;1 | &nbsp;&nbsp;&nbsp;&nbsp;97438 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;97439 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;97439 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Common stock issued, non-employee compensation | &nbsp;&nbsp;&nbsp;&nbsp;3454 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;225 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;225 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;225 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Stock issued under benefit plans, net of taxes paid upon vesting of restricted stock awards | &nbsp;&nbsp;&nbsp;&nbsp;24768 |  | &nbsp;&nbsp;&nbsp;&nbsp;(829) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(829) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(829) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share based compensation | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;11954 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;11954 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;11954 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Preferred dividends — Series B | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(3200) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(3200) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(3200) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Effect of foreign currency translation | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;80 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;80 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;80 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Adjustment for deferred compensation | &nbsp;&nbsp;&nbsp;&nbsp;(3454) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(223) | &nbsp;&nbsp;&nbsp;&nbsp;223 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Contributions received for the sale of noncontrolling interest | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;9052 | &nbsp;&nbsp;&nbsp;&nbsp;9052 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reclassification of noncontrolling interest | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;3030 | &nbsp;&nbsp;&nbsp;&nbsp;3030 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Distribution to noncontrolling interest | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(744) | &nbsp;&nbsp;&nbsp;&nbsp;(744) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net loss | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— |  | &nbsp;&nbsp;&nbsp;&nbsp;(107568) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(107568) | &nbsp;&nbsp;&nbsp;&nbsp;(488) | &nbsp;&nbsp;&nbsp;&nbsp;(108056) |
| **Balance, October 31, 2023** | &nbsp;&nbsp;&nbsp;&nbsp;15020872 | $&nbsp;&nbsp;&nbsp;&nbsp;2 | $&nbsp;&nbsp;&nbsp;&nbsp;2199704 | $&nbsp;&nbsp;&nbsp;&nbsp;(1515541) | $&nbsp;&nbsp;&nbsp;&nbsp;(1672) | $&nbsp;&nbsp;&nbsp;&nbsp;(1078) | $&nbsp;&nbsp;&nbsp;&nbsp;1078 | $&nbsp;&nbsp;&nbsp;&nbsp;682493 | $&nbsp;&nbsp;&nbsp;&nbsp;17955 | $&nbsp;&nbsp;&nbsp;&nbsp;700448 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sale of common stock, net of fees | &nbsp;&nbsp;&nbsp;&nbsp;5302378 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;92555 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;92555 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;92555 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Common stock issued, non-employee compensation | &nbsp;&nbsp;&nbsp;&nbsp;6651 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;159 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;159 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;159 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Stock issued under benefit plans, net of taxes paid upon vesting of restricted stock awards | &nbsp;&nbsp;&nbsp;&nbsp;50358 |  | &nbsp;&nbsp;&nbsp;&nbsp;(951) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(951) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(951) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share based compensation | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;11764 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;11764 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;11764 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Preferred dividends — Series B | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(3200) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(3200) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(3200) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Effect of foreign currency translation | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;111 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;111 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;111 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Adjustment for deferred compensation | &nbsp;&nbsp;&nbsp;&nbsp;(4327) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(120) | &nbsp;&nbsp;&nbsp;&nbsp;120 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Contributions received for the sale of noncontrolling interest | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;25122 | &nbsp;&nbsp;&nbsp;&nbsp;25122 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Distribution to noncontrolling interest | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(1621) | &nbsp;&nbsp;&nbsp;&nbsp;(1621) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net loss | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— |  | &nbsp;&nbsp;&nbsp;&nbsp;(126009) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(126009) | &nbsp;&nbsp;&nbsp;&nbsp;(30769) | &nbsp;&nbsp;&nbsp;&nbsp;(156778) |
| **Balance, October 31, 2024** | &nbsp;&nbsp;&nbsp;&nbsp;20375932 | $&nbsp;&nbsp;&nbsp;&nbsp;2 | $&nbsp;&nbsp;&nbsp;&nbsp;2300031 | $&nbsp;&nbsp;&nbsp;&nbsp;(1641550) | $&nbsp;&nbsp;&nbsp;&nbsp;(1561) | $&nbsp;&nbsp;&nbsp;&nbsp;(1198) | $&nbsp;&nbsp;&nbsp;&nbsp;1198 | $&nbsp;&nbsp;&nbsp;&nbsp;656922 | $&nbsp;&nbsp;&nbsp;&nbsp;10687 | $&nbsp;&nbsp;&nbsp;&nbsp;667609 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sale of common stock, net of fees | &nbsp;&nbsp;&nbsp;&nbsp;25593629 | &nbsp;&nbsp;&nbsp;&nbsp;3 | &nbsp;&nbsp;&nbsp;&nbsp;185682 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;185685 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;185685 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Common stock issued, non-employee compensation | &nbsp;&nbsp;&nbsp;&nbsp;33666 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;220 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;220 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;220 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Stock issued under benefit plans, net of taxes paid upon vesting of restricted stock awards | &nbsp;&nbsp;&nbsp;&nbsp;104380 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(503) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(503) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(503) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share based compensation | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;11088 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;11088 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;11088 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Preferred dividends — Series B | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(3200) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(3200) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(3200) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Effect of foreign currency translation | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(134) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(134) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(134) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Adjustment for deferred compensation | &nbsp;&nbsp;&nbsp;&nbsp;(32370) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(208) | &nbsp;&nbsp;&nbsp;&nbsp;208 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Contributions received for the sale of noncontrolling interest | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;4000 | &nbsp;&nbsp;&nbsp;&nbsp;4000 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Distribution to noncontrolling interest | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(2109) | &nbsp;&nbsp;&nbsp;&nbsp;(2109) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net loss | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— |  | &nbsp;&nbsp;&nbsp;&nbsp;(187899) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;(187899) | &nbsp;&nbsp;&nbsp;&nbsp;(3473) | &nbsp;&nbsp;&nbsp;&nbsp;(191372) |
| **Balance, October 31, 2025** | &nbsp;&nbsp;&nbsp;&nbsp;46075237 | $&nbsp;&nbsp;&nbsp;&nbsp;5 | $&nbsp;&nbsp;&nbsp;&nbsp;2493318 | $&nbsp;&nbsp;&nbsp;&nbsp;(1829449) | $&nbsp;&nbsp;&nbsp;&nbsp;(1695) | $&nbsp;&nbsp;&nbsp;&nbsp;(1406) | $&nbsp;&nbsp;&nbsp;&nbsp;1406 | $&nbsp;&nbsp;&nbsp;&nbsp;662179 | $&nbsp;&nbsp;&nbsp;&nbsp;9105 | $&nbsp;&nbsp;&nbsp;&nbsp;671284 |

---

See accompanying notes to consolidated financial statements

[**Table of Contents**](#TOC)

**Consolidated Statements of Cash Flows**

**For the Years Ended October 31, 2025, 2024 and 2023**

**(Amounts in thousands)**

---

| | | | |
|:---|:---|:---|:---|
|  | **Year Ended October 31,** | **Year Ended October 31,** | **Year Ended October 31,** |
|  | **2025** | **2024** | **2023** |
| **Cash flows from operating activities:** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Net loss | $(191372) | $(156778) | $&nbsp;&nbsp;&nbsp;&nbsp;(108056) |
| &nbsp;&nbsp;&nbsp;&nbsp;Adjustments to reconcile net loss to net cash used in operating activities: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share-based compensation | 11088 | 11764 | &nbsp;&nbsp;&nbsp;&nbsp;11954 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Depreciation and amortization | 40400 | 36193 | &nbsp;&nbsp;&nbsp;&nbsp;25375 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gain on extinguishment of finance obligations and debt, net | - | - | &nbsp;&nbsp;&nbsp;&nbsp;(15337) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non-cash interest expense on finance obligations | 2361 | 2182 | &nbsp;&nbsp;&nbsp;&nbsp;3228 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unrealized (gain) loss on derivative contracts | (4008) | 9940 | &nbsp;&nbsp;&nbsp;&nbsp;(7441) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Operating lease costs | 1412 | 1404 | &nbsp;&nbsp;&nbsp;&nbsp;1486 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Operating lease payments | (1341) | (1266) | &nbsp;&nbsp;&nbsp;&nbsp;(1226) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Impairment expense | 65781 | 1264 | &nbsp;&nbsp;&nbsp;&nbsp;2375 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unrealized foreign currency losses | - | - | &nbsp;&nbsp;&nbsp;&nbsp;(57) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other, net | 178 | 237 | &nbsp;&nbsp;&nbsp;&nbsp;456 |
| &nbsp;&nbsp;&nbsp;&nbsp;Decrease (increase) in operating assets: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accounts receivable | 7752 | (7942) | &nbsp;&nbsp;&nbsp;&nbsp;1076 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unbilled receivables | (66139) | (23043) | &nbsp;&nbsp;&nbsp;&nbsp;(21921) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Inventories | 15871 | (29247) | &nbsp;&nbsp;&nbsp;&nbsp;4686 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other assets | (5880) | (5404) | &nbsp;&nbsp;&nbsp;&nbsp;(13090) |
| &nbsp;&nbsp;&nbsp;&nbsp;(Decrease) increase in operating liabilities: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accounts payable | (2758) | (999) | &nbsp;&nbsp;&nbsp;&nbsp;3001 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued liabilities | (118) | 4691 | &nbsp;&nbsp;&nbsp;&nbsp;(4461) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred revenue | 1482 | 4098 | &nbsp;&nbsp;&nbsp;&nbsp;(22298) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Net cash used in operating activities** | (125291) | (152906) | &nbsp;&nbsp;&nbsp;&nbsp;(140250) |
| **Cash flows from investing activities:** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Capital expenditures | (18601) | (47721) | &nbsp;&nbsp;&nbsp;&nbsp;(39355) |
| &nbsp;&nbsp;&nbsp;&nbsp;Project asset expenditures | (3939) | (11832) | &nbsp;&nbsp;&nbsp;&nbsp;(53007) |
| &nbsp;&nbsp;&nbsp;&nbsp;Maturity of held-to-maturity debt securities | 772370 | 835240 | &nbsp;&nbsp;&nbsp;&nbsp;199090 |
| &nbsp;&nbsp;&nbsp;&nbsp;Purchases of held-to-maturity debt securities | (660969) | (835736) | &nbsp;&nbsp;&nbsp;&nbsp;(299093) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Net cash provided by (used in) investing activities** | 88861 | (60049) | &nbsp;&nbsp;&nbsp;&nbsp;(192365) |
| **Cash flows from financing activities:** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Repayment of debt and finance obligations | (14440) | (11699) | &nbsp;&nbsp;&nbsp;&nbsp;(47830) |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from the issuance of debt | - | 23104 | &nbsp;&nbsp;&nbsp;&nbsp;100500 |
| &nbsp;&nbsp;&nbsp;&nbsp;Payment for deferred financing costs | (172) | (1159) | &nbsp;&nbsp;&nbsp;&nbsp;(3469) |
| &nbsp;&nbsp;&nbsp;&nbsp;Common stock issued for stock plans and related expenses | 51 | 120 | &nbsp;&nbsp;&nbsp;&nbsp;56 |
| &nbsp;&nbsp;&nbsp;&nbsp;Contributions received from sale of noncontrolling interest | 4000 | 25122 | &nbsp;&nbsp;&nbsp;&nbsp;9052 |
| &nbsp;&nbsp;&nbsp;&nbsp;Distribution to noncontrolling interest | (2109) | (1621) | &nbsp;&nbsp;&nbsp;&nbsp;(596) |
| &nbsp;&nbsp;&nbsp;&nbsp;Payments for taxes related to net share settlement of equity awards | (553) | (1071) | &nbsp;&nbsp;&nbsp;&nbsp;(885) |
| &nbsp;&nbsp;&nbsp;&nbsp;Common stock issuance, net of fees | 185685 | 92555 | &nbsp;&nbsp;&nbsp;&nbsp;97439 |
| &nbsp;&nbsp;&nbsp;&nbsp;Payment of preferred dividends | (3200) | (3200) | &nbsp;&nbsp;&nbsp;&nbsp;(3200) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Net cash provided by financing activities** | 169262 | 122151 | &nbsp;&nbsp;&nbsp;&nbsp;151067 |
| Effects on cash from changes in foreign currency rates | 77 | 111 | &nbsp;&nbsp;&nbsp;&nbsp;80 |
| **Net increase (decrease) in cash, cash equivalents and restricted cash** | 132909 | (90693) | &nbsp;&nbsp;&nbsp;&nbsp;(181468) |
| Cash, cash equivalents and restricted cash-beginning of period | 208883 | 299576 | &nbsp;&nbsp;&nbsp;&nbsp;481044 |
| **Cash, cash equivalents and restricted cash-end of period** | $341792 | $208883 | $&nbsp;&nbsp;&nbsp;&nbsp;299576 |
| **Reconciliation of cash, cash equivalents and restricted cash**  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Cash and cash equivalents, unrestricted | $278099 | $148133 | $249952 |
| &nbsp;&nbsp;&nbsp;&nbsp;Restricted cash and cash equivalents - short-term | 16601 | 12161 | 5159 |
| &nbsp;&nbsp;&nbsp;&nbsp;Restricted cash and cash equivalents - long-term | 47092 | 48589 | 44465 |
| **Total cash, cash equivalents and restricted cash** | $341792 | $208883 | $299576 |

---

See accompanying notes to the consolidated financial statements.

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**Note 1. Nature of Business, Basis of Presentation and Significant Accounting Policies**

#### Nature of Business and Basis of Presentation
Headquartered in Danbury, Connecticut, FuelCell Energy, Inc. (together with its subsidiaries, the "Company" "FuelCell Energy," "we," "us," or "our") is a clean energy technology company and a stationary fuel cell manufacturer with 22 years of operating experience in this field. Unlike traditional power generation methods that rely on combustion, our fuel cells generate electricity electrochemically through a chemical reaction rather than burning fuel, resulting in ultra-low emissions and high efficiency. In addition to our existing core molten carbonate-based commercial products, we engage strategically in research and development, both company-funded and carried out under grants from and commercial agreements with private companies and various government agencies through our Advanced Technologies programs. We focus on generating revenue from our core recurring and non-recurring revenue sources, while working to identify the next trends in clean energy we believe we can commercialize, take to market, and grow into future revenue streams.

We target a range of markets and applications with our products, including utilities and independent power producers, data centers, wastewater treatment, commercial and hospitality, and microgrids, among others. We market our products primarily in the U.S. and Canada, the European Union (the "EU") and the United Kingdom (the "UK"), and priority Asian markets including South Korea, Singapore, Malaysia, and Thailand. The consolidated financial statements include our accounts, those of our wholly-owned subsidiaries, and those of our consolidated variable interest entities. All intercompany accounts and transactions have been eliminated.

On November 8, 2024, we effected a 1-for-30 reverse stock split, reducing the number of our common shares outstanding on that date from 611,278,662 shares to approximately 20,375,932 shares. The number of authorized shares of common stock remains unchanged at 1,000,000,000 shares and the number of authorized shares of preferred stock remains unchanged at 250,000 shares. The number of shares of common stock issuable upon settlement of outstanding restricted stock unit, performance stock unit and deferred stock unit awards were reduced proportionately in connection with the reverse stock split. Additionally, the conversion rate of our Series B Preferred Stock (as defined elsewhere herein), the exercise price of all outstanding options, the number of shares of common stock issuable upon the exercise of all outstanding options, and the number of shares reserved for future issuance pursuant to our equity compensation plans and employee stock purchase plan were all adjusted proportionately in connection with the reverse stock split. All share and per share amounts, exercise prices, conversion rates and conversion prices presented herein that relate to dates, or were established, prior to the reverse stock split have been adjusted retroactively to reflect these changes.

#### Liquidity
Our principal sources of cash have been proceeds from the sale of our products and projects, electricity generation revenues, research and development and service agreements with third parties, sales of our common stock through public equity offerings, and proceeds from debt, project financing and tax monetization transactions. We have utilized this cash to accelerate the commercialization of our solid oxide platforms, develop new capabilities to separate and capture carbon, develop and construct project assets, invest in capital improvements and expansion of our operations, perform research and development, pay down existing outstanding indebtedness, and meet our other cash and liquidity needs.

As of October 31, 2025, unrestricted cash and cash equivalents totaled $278.1 million compared to $148.1 million as of October 31, 2024. During the years ended October 31, 2025 and 2024, the Company invested in United States (U.S.) Treasury Securities. The amortized cost of the U.S. Treasury Securities outstanding totaled $109.1 million as of October 31, 2024 and was classified as Investments - short-term on the Consolidated Balance Sheets. There were no outstanding U.S. Treasury Securities as of October 31, 2025 as all U.S. Treasury Securities that were outstanding during the year ended October 31, 2025 matured prior to October 31, 2025.

During fiscal year 2025, the Company received the second annual funding from East West Bank under the tax equity financing transaction between the Company and East West Bank and, as a result, the Company received a $4.0 million contribution during the year ended October 31, 2025 which is recorded as noncontrolling interest on the Consolidated Balance Sheets.

On April 10, 2024, the Company entered into Amendment No. 1 to the Open Market Sale Agreement, dated July 12, 2022 (as amended, the "Sales Agreement"), with Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canaccord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities

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LLC and Loop Capital Markets LLC (each, an "Agent" and together, the "Agents"), with respect to an at the market offering program under which the Company may, from time to time, offer and sell shares of its common stock having an aggregate offering price of up to $300.0 million (exclusive of any amounts previously sold under the Sales Agreement prior to its amendment). On December 27, 2024, the Company entered into Amendment No. 2 to the Sales Agreement, which removed certain representations and warranties relating to the Company's status as a well-known seasoned issuer. During the year ended October 31, 2025, approximately 25.6 million shares of the Company's common stock were sold under the Sales Agreement at an average sale price of $7.44 per share, resulting in gross proceeds of approximately $190.4 million before deducting sales commissions and fees, and net proceeds to the Company of approximately $185.7 million after deducting sales commissions totaling approximately $3.8 million and fees totaling approximately $0.9 million. See Note 13. "Stockholders' Equity" for additional information regarding the Sales Agreement, and Note 22. "Subsequent Events" for additional information regarding sales made subsequent to October 31, 2025 under the Sales Agreement.

On December 27, 2024, the Company filed Post-Effective Amendment No. 1 and Post-Effective Amendment No. 2 to the Registration Statement on Form S-3 (File No. 333-274971) (the "Registration Statement"), each including a base prospectus covering the offering, issuance and sale by the Company of up to $405.0 million of common stock, warrants and units (or any combination thereof) from time to time in one or more offerings and a prospectus supplement covering the offering, issuance and sale by the Company from time to time of up to approximately $204.9 million of the Company's common stock, which was the amount remaining under the Sales Agreement as of December 27, 2024. On March 5, 2025, the Company filed Post-Effective Amendment No. 3 to the Registration Statement to update certain information, to provide an updated consent of its independent registered public accounting firm, and to provide an update about the amount of shares then remaining available for offer and sale by the Company under the Sales Agreement. The Registration Statement, as amended by the Post-Effective Amendments, was declared effective by the SEC on March 10, 2025. In the event that the Sales Agreement is terminated, any portion of the aggregate amount of shares of common stock included in the prospectus supplement that is not sold pursuant to the Sales Agreement will be available for sale in other offerings pursuant to the base prospectus and a corresponding prospectus supplement.

In addition, the Company has a universal shelf Registration Statement on Form S-3 (No. 333-286842) that was declared effective by the SEC on May 8, 2025. Under this universal shelf Registration Statement, the Company may offer and sell from time to time in one or more offerings up to $200.0 million in the aggregate of (1) shares of the Company's common stock; (2) shares of the Company's preferred stock; (3) debt securities; (4) warrants exercisable for common stock, preferred stock, debt securities, units, or other securities of the Company; and (5) units consisting of one or more shares of common stock, shares of preferred stock, debt securities, and/or warrants.

We believe that our unrestricted cash and cash equivalents, expected receipts from our contracted backlog, and release of short-term restricted cash less expected disbursements over the next twelve months will be sufficient to allow the Company to meet its obligations for at least one year from the date of issuance of these financial statements.

To date, we have not achieved profitable operations or sustained positive cash flow from operations. The Company's future liquidity, for fiscal year 2026 and in the long-term, will depend on its ability to (i) timely complete current projects in process within budget, (ii) increase cash flows from its generation operating portfolio, including by meeting conditions required to timely commence operation of new projects, operating its generation operating portfolio in compliance with minimum performance guarantees and operating its generation operating portfolio in accordance with revenue expectations, (iii) obtain financing for project construction and manufacturing expansion, (iv) obtain permanent financing for its projects once constructed, (v) increase order and contract volumes, which would lead to additional product sales, service agreements and generation revenues, (vi) obtain funding for and receive payment for research and development under current and future Advanced Technologies contracts, (vii) successfully advance the commercialization of its solid oxide and carbon capture platforms through partnerships with third parties, (viii) implement capacity expansion for its carbonate products when required, (ix) seek partnerships for solid oxide product commercialization and manufacturing, (x) implement the product cost reductions necessary to achieve profitable operations, (xi) manage working capital and the Company's unrestricted cash balance and (xii) access the capital markets to raise funds through the sale of debt and equity securities, convertible notes, and other equity-linked instruments.

We are continually assessing different means by which to accelerate the Company's growth, enter new markets, commercialize new products, and enable capacity expansion. Therefore, from time to time, the Company may consider and enter into agreements for one or more of the following: negotiated financial transactions, minority investments, collaborative ventures, technology sharing, transfer or other technology license arrangements, joint ventures, partnerships, acquisitions or other business transactions for the purpose(s) of geographic or manufacturing expansion and/or new product

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or technology development and commercialization, including hydrogen production through our carbonate and solid oxide platforms and storage and carbon capture, sequestration and utilization technologies.

Our business model requires substantial outside financing arrangements and satisfaction of the conditions of such arrangements to construct and deploy our projects to facilitate the growth of our business. The Company has invested capital raised from sales of its common stock to build out its project portfolio. The Company has also utilized and expects to continue to utilize a combination of long-term debt and tax equity financing (e.g., sale-leaseback transactions, partnership flip transactions and the monetization and/or transfer of eligible investment and production tax credits) to finance its project asset portfolio as these projects commence commercial operations. The Company may also seek to undertake private placements of debt securities to finance its project asset portfolio. The Company is also pursuing financing to support its commercial efforts, which include deployment of modules to the repowering opportunities in the South Korean market including the GGE project (as defined elsewhere herein). The proceeds of any such financing, if obtained, may allow the Company to reinvest capital back into the business and to fund other projects. We also expect to seek additional financing in both the debt and equity markets in the future. If financing is not available to us on acceptable terms if and when needed, or on terms acceptable to us or our lenders, if we do not satisfy the conditions of our financing arrangements, if we spend more than the financing approved for projects, if project costs exceed an amount that the Company can finance, or if we do not generate sufficient revenues or obtain capital sufficient for our corporate needs, we may be required to further reduce or slow planned spending, further reduce staffing, sell assets, seek alternative financing and take other measures, any of which could have a material adverse effect on our financial condition and operations.

#### Summary of Significant Accounting Policies
*Cash and Cash Equivalents*

All cash equivalents consist of investments in money market funds with original maturities of three months or less at the date of acquisition. We place our temporary cash equivalent investments with high credit quality financial institutions.

*Inventories and Advance Payments to Vendors*

Inventories consist principally of raw materials and work-in-process. Cost is determined using the first-in, first-out cost method. Included in our inventory balance are used modules that are brought back into inventory upon installation of new modules. When a new module is installed, a determination is made as to whether the used module has remaining useful life or should be scrapped and materials recycled. Modules that are deemed to have remaining useful life are put into inventory at an estimated value based on the expected remaining life of the module and its projected output. In certain circumstances, we will make advance payments to vendors for future inventory deliveries. These advance payments are recorded as Other current assets on the Consolidated Balance Sheets.

Inventories are reviewed to determine net realizable value. This review includes analyzing inventory levels of individual parts considering the current design of our products and production requirements as well as the expected inventory requirements for maintenance on installed power platforms.

*Investments – Short-Term*

*The Company invests in U.S. Treasury Securities which are held-to-maturity and are recorded at amortized cost.* 

*Allowance for Doubtful Accounts and Credit Losses*

The Company had no allowance for doubtful accounts or credit losses as of October 31, 2025 and 2024. Uncollectible accounts receivable are charged against the allowance for doubtful accounts when all collection efforts have failed and it is deemed unlikely that the amount will be recovered. The Company would record a specific reserve for individual accounts when the Company becomes aware of specific customer circumstances such as in the case of a bankruptcy filing or the deterioration in the customer's operating results or financial position.

*Project Assets*

Project assets consist of capitalized costs for fuel cell projects in various stages of development, including those projects with respect to which we have entered into power purchase agreements ("PPAs") and those projects with respect to which

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we expect to secure long-term contracts. Such development costs are generally incurred prior to entering into a definitive sales or long-term financing agreement for the project. Project assets also include capitalized costs for fuel cell projects which are the subject of sale-leaseback transactions with Crestmark Equipment Finance, a division of MetaBank ("Crestmark"). Project asset costs include costs for developing and constructing a complete turn-key fuel cell project. Development costs can include legal, consulting, permitting, interconnect, and other similar costs. To the extent we enter into a definitive sales agreement, we expense project assets to cost of sales after the respective project asset is sold to a customer and all revenue recognition criteria have been met.

*Property, Plant and Equipment*

Property, plant and equipment are stated at cost, less accumulated depreciation which is recorded based on the straight-line method over the estimated useful lives of the respective assets. Leasehold improvements are amortized on the straight-line method over the shorter of the estimated useful lives of the assets or the term of the lease. When property, plant or equipment is sold or otherwise disposed of, the cost and related accumulated depreciation are removed from the accounts and any resulting gain or loss is reflected in operations for the period.

*Goodwill and Indefinite-Lived Intangibles*

Goodwill represents the excess of the aggregate purchase price over the fair value of the net assets acquired in a business combination and is reviewed for impairment at least annually. The intangible asset represents indefinite-lived in-process research and development ("IPR&D") for cumulative research and development efforts associated with the development of solid oxide fuel cell stationary power generation and is also reviewed at least annually for impairment.

Accounting Standards Codification ("ASC") Topic 350: *Intangibles - Goodwill and Other* ("ASC 350") permits the assessment of qualitative factors to determine whether events and circumstances lead to the conclusion that it is necessary to perform the goodwill impairment test required under ASC 350.

The Company completed its annual impairment analysis of goodwill and IPR&D as of July 31, 2025. The goodwill and IPR&D asset were both held by the Company's Versa reporting unit, which consists of the Company's subsidiaries, Versa Power Systems, Ltd. and Versa Power Systems, Inc. Goodwill and the IPR&D asset are also reviewed for possible impairment whenever changes in conditions indicate that the fair value of a reporting unit or IPR&D asset is more likely than not below its respective carrying value. The Company determined that it was more likely than not that there was impairment of goodwill and the IPR&D asset, and recognized an impairment expense as a result. See Note 4. "Impairment and Restructuring" for additional information regarding the impairment. No impairment expenses were recorded with respect to goodwill or the IPR&D asset during the fiscal years ended October 31, 2024 and 2023.

*Impairment of Long-Lived Assets (including Project Assets)*

Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset group which pertains to specific projects may not be recoverable. If events or changes in circumstances indicate that the carrying amount of the asset group may not be recoverable, we compare the carrying amount of the asset group to the future undiscounted net cash flows, excluding debt service costs, expected to be generated by the asset group and its ultimate disposition. If the sum of the undiscounted cash flows is less than the carrying value, the impairment to be recognized is measured by the amount by which the carrying amount of the asset group exceeds its fair value.

*Revenue Recognition*

The Company recognizes revenue in accordance with the guidance in ASC Topic 606: *Revenue from Contracts with Customers* ("ASC 606"). Under ASC 606, the amount of revenue recognized for any goods or services reflects the consideration that the Company expects to be entitled to receive in exchange for those goods and services. To achieve this core principle, the Company applies the following five-step approach: (1) identify the contract with the customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to performance obligations in the contract; and (5) recognize revenue when or as a performance obligation is satisfied.

A contract is accounted for when there has been approval and commitment from both parties, the rights of the parties are identified, payment terms are identified, the contract has commercial substance and collectability of consideration is probable. Performance obligations under a contract are identified based on the goods or services that will be transferred to

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the customer that are both capable of being distinct and are distinct in the context of the contract. In certain instances, the Company has concluded distinct goods or services should be accounted for as a single performance obligation that is a series of distinct goods or services that have the same pattern of transfer to the customer. To the extent a contract includes multiple promised goods or services, the Company must apply judgment to determine whether the customer can benefit from the goods or services either on their own or together with other resources that are readily available to the customer (the goods or services are capable of being distinct) and if the promise to transfer the goods or services to the customer is separately identifiable from other promises in the contract (the goods or services are distinct in the context of the contract). If these criteria are not met, the promised goods or services are accounted for as a single performance obligation. The transaction price is determined based on the consideration that the Company will be entitled to in exchange for transferring goods or services to the customer. To the extent the transaction price includes variable consideration, the Company estimates the amount of variable consideration that should be included in the transaction price, generally utilizing the expected value method. Determining the transaction price requires judgment. If the contract contains a single performance obligation, the entire transaction price is allocated to the single performance obligation. Contracts that contain multiple performance obligations require an allocation of the transaction price to each performance obligation based on a relative standalone selling price basis. Standalone selling price is determined by the price at which the performance obligation is sold separately. If the standalone selling price is not observable through past transactions, the Company estimates the standalone selling price by taking into account available information such as market conditions and internally approved pricing guidelines related to the performance obligations. Performance obligations are satisfied either over time or at a point in time as discussed in further detail below. In addition, the Company's contracts with customers generally do not include significant financing components or non-cash consideration. The Company has elected practical expedients in the accounting guidance that allow for revenue to be recorded in the amount that the Company has a right to invoice, if that amount corresponds directly with the value to the customer of the Company's performance to date, and that allow the Company not to disclose related unsatisfied performance obligations. The Company records any amounts that are billed to customers in excess of revenue recognized as deferred revenue and revenue recognized in excess of amounts billed to customers as unbilled receivables.

Revenue streams are classified as follows:

**Product.** Includes the sale of completed project assets, sale and installation of fuel cell power platforms including site engineering and construction services, and the sale of modules, balance of plant ("BOP") components and spare parts to customers.

**Service.** Includes performance under long-term service agreements for power platforms owned by third parties.

**Generation.** Includes the sale of electricity under PPAs and utility tariffs from project assets retained by the Company. This also includes revenue received from the sale of other value streams from these assets including the sale of heat, steam, capacity and renewable energy credits.

**Advanced Technologies.** Includes revenue from customer-sponsored and government-sponsored Advanced Technologies projects.

See below for a discussion of revenue recognition under ASC 606 by disaggregated revenue stream.

*Completed project assets*

Contracts for the sale of completed project assets include the sale of the project asset, the assignment of the service agreement, and the assignment of the PPA. The relative stand-alone selling price is estimated and is used as the basis for allocation of the contract consideration. Revenue is recognized upon the satisfaction of the performance obligations, which includes the transfer of control of the project asset to the customer, which is when the contract is signed and the PPA is assigned to the customer. See below for further discussion regarding revenue recognition for service agreements.

Contractual payments related to the sale of the project asset and assignment of the PPA are generally received up-front. Payment terms for service agreements are generally ratable over the term of the agreement.

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*Module sales*

Contracts for module sales represent the sale of a completed fuel cell module at a contracted selling price. These contracts are on a per unit basis and revenue is recognized as each unit is completed and ready to ship and the performance obligation is satisfied. Payment terms for module sales are generally based on milestones achieved through the manufacturing timeline of the module.

*Service agreements*

Service agreements represent a single performance obligation whereby the Company performs all required maintenance and monitoring functions, including replacement of modules, to ensure the power platform(s) under the service agreement generate a minimum power output. To the extent the power platform(s) under service agreements do not achieve the minimum power output, certain service agreements include a performance guarantee penalty. Performance guarantee penalties represent variable consideration, which is estimated for each service agreement based on past experience, using the expected value method. The consideration for each service agreement is recognized over time using costs incurred to date relative to total estimated costs at completion to measure progress.

The Company reviews its cost estimates on service agreements on an annual basis and records any changes in estimates on a cumulative catch-up basis.

Loss accruals for service agreements are recognized to the extent that the estimated remaining costs to satisfy the performance obligation exceed the estimated remaining unrecognized consideration. Estimated losses are recognized in the period in which losses are identified.

Payment terms for service agreements are generally ratable over the term of the agreement.

*Advanced Technologies contracts*

Advanced Technologies contracts include the promise to perform research and development services and, as such, this represents one performance obligation. Revenue from most government sponsored Advanced Technologies projects is recognized as direct costs are incurred plus allowable overhead less cost share requirements, if any. Revenue is only recognized to the extent the contracts are funded. Revenue recognition for research performed under the Joint Development Agreement (as defined elsewhere herein) with EMTEC and for research performed under the purchase order received from Esso (as defined elsewhere herein) for the Rotterdam project also falls into the practical expedient category where revenue is recorded consistent with the amounts that are to be invoiced.

Payments are based on costs incurred for government sponsored Advanced Technologies. Payments under the Joint Development Agreement with EMTEC are based on time spent and material costs incurred.

*Generation revenue*

For certain project assets where customers purchase electricity from the Company under PPAs, the Company has determined that these agreements should be accounted for as operating leases pursuant to ASC 842, *Leases*. Revenue is recognized when electricity has been delivered based on the amount of electricity delivered at rates specified under the contracts. Generation revenue, to the extent the related PPAs are within the scope of ASC 606, include a performance obligation to provide 100% of the electricity output generated by the associated project asset to the customer. The promise to provide electricity over the term of the PPA represents a single performance obligation, as it is a promise to transfer a series of distinct goods or services that are substantially the same and that have the same pattern of transfer to the customer. Revenue is recognized over time as the customer simultaneously receives and consumes the benefits provided by the Company, and the Company satisfies its performance obligation. Revenue is recognized based on the output method as there is a directly observable output to the customer-electricity delivered to the customer and immediately consumed. Payments are based on actual power output and the contractual rate for electricity generated.

#### Variable Interest Entities and Noncontrolling Interests
The Company has tax equity financing transactions with certain participating companies for three partnerships as of October 31, 2025. These transactions are structured as "partnership flips." A "partnership flip" is a structure commonly

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used by tax equity investors in financing renewable energy projects. The Company has determined, under the power and benefits criterion of ASC 810, *Consolidations*, that the Company is the primary beneficiary in these three partnerships since the rights under the agreements for the tax equity transactions are more protective in nature than participatory and, as such, these partnerships will be accounted for as Variable Interest Entities ("VIEs") under U.S. GAAP. As the primary beneficiary, the Company consolidates the financial position, results of operations and cash flows in our consolidated financial statements, and all intercompany balances and transactions between the Company and these partnerships are eliminated. The Company has recognized the share of the net assets of these partnerships as noncontrolling interests in its Consolidated Balance Sheets. The income or loss allocations reflected in our Consolidated Statements of Operations and Comprehensive Loss may create volatility in our reported results of operations, including potentially changing net loss attributable to stockholders to net income attributable to stockholders, or vice versa, from quarter to quarter. The Company allocates profits and losses to the participating companies' noncontrolling interest under the HLBV method. See Note 3. "Tax Equity Financings and Investment Tax Credit Sale" for additional information regarding the tax equity financing transactions.

*Sale-Leaseback Accounting*

The Company, through certain wholly-owned subsidiaries, has entered into sale-leaseback transactions for commissioned project assets where we have entered into a PPA with a customer who is both the site host and end user of the power. Due to the Company not meeting criteria to account for the transfer of the project assets as a sale since the leases include a repurchase right, sale accounting is precluded. Accordingly, the Company uses the financing method to account for these transactions.

Under the financing method of accounting for a sale-leaseback, the Company does not derecognize the project assets and does not recognize as revenue any of the sale proceeds received from the lessor that contractually constitutes payment to acquire the assets subject to these arrangements. Instead, the sale proceeds received are accounted for as finance obligations and leaseback payments made by the Company are allocated between interest expense and a reduction to the finance obligation. Interest on the finance obligation is calculated using the Company's incremental borrowing rate at the inception of the arrangement on the outstanding finance obligation. While we receive financing for the related project asset, we have not recognized revenue on the sale-leaseback transactions. Instead, revenue is recognized with respect to the related PPAs in accordance with the Company's accounting policies for recognizing generation revenue.

*Lease Accounting*

Right-of-use ("ROU") assets represent the Company's right to use an underlying asset for the lease term and lease liabilities represent the present value of the Company's obligation to make lease payments arising from the lease over the lease term at the commencement date of the lease. As most of the Company's leases do not provide an implicit rate, the Company estimated the incremental borrowing rate based on the information available at the date of adoption in determining the present value of lease payments and used the implicit rate when readily determinable. The Company determined incremental borrowing rates through market sources for secured borrowings including relevant industry rates. The Company's operating lease ROU assets also include any lease pre-payments and exclude lease incentives. Certain of the Company's leases include variable payments, which may vary based upon changes in facts or circumstances after the start of the lease. The Company excludes variable payments from lease ROU assets and lease liabilities to the extent not considered in-substance fixed, and instead, expenses variable payments as incurred. Variable lease expense and lease expense for short term contracts are not material components of lease expense. The Company's leases generally have remaining lease terms of approximately 1 to 22 years, some of which include options to extend the leases. The exercise of lease renewal options is at the Company's sole discretion and the Company's lease ROU assets and liabilities reflect only the options the Company is reasonably certain that it will exercise. We do not have leases with residual value guarantees or similar covenants.

*Service Expense Recognition*

We warranty our products for a specific period of time against manufacturing or performance defects. Our U.S. warranty is generally limited to a term of 15 months after shipment or 12 months after acceptance of our products. We accrue for estimated future warranty costs based on historical experience. We also provide for a specific accrual if there is a known issue requiring repair during the warranty period.

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In addition to the standard product warranty, we have entered into service agreements with certain customers to provide monitoring, maintenance and repair services for fuel cell power platforms. Under the terms of these service agreements, the power platform must meet a minimum operating output during the term. If the minimum output falls below the contract requirement, we may be subject to performance penalties or may be required to repair and/or replace the customer's fuel cell module(s).

The Company records loss accruals for service agreements when the estimated cost of future module exchanges and maintenance and monitoring activities exceeds the remaining unrecognized contract value. Estimates for future costs on service agreements are determined by a number of factors, including the estimated remaining life of the module(s), used replacement modules available and future operating plans for the power platform. Our estimates are performed on a contract by contract basis and include cost assumptions based on what we anticipate the service requirements will be to fulfill obligations for each contract.

At the end of our service agreements, customers are expected to either renew the service agreement or, based on the Company's rights to title of the module, the module will be returned to the Company as the platform is no longer being maintained.

*Research and Development Costs*

We perform both customer-sponsored research and development projects based on contractual agreements with customers and company-sponsored research and development projects.

Costs incurred for customer-sponsored projects include manufacturing and engineering labor, applicable overhead expenses, materials to build and test prototype units and other costs associated with customer-sponsored research and development contracts. Costs incurred for customer-sponsored projects are recorded as cost of Advanced Technologies contract revenues in the Consolidated Statements of Operations and Comprehensive Loss.

Costs incurred for company-sponsored research and development projects consist primarily of labor, overhead, materials to build and test prototype units and consulting fees. These costs are recorded as Research and development expenses in the Consolidated Statements of Operations and Comprehensive Loss.

*Concentrations*

We contract with a concentrated number of customers for the sale of our products, for service agreements, for power purchase agreements and for Advanced Technologies contracts. For the years ended October 31, 2025, 2024 and 2023, our top customers accounted for 82%, 68% and 75%, respectively, of our total annual consolidated revenue.

The percent of consolidated revenues from our top customers for the years ended October 31, 2025, 2024 and 2023, respectively, are presented below.

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| | | | |
|:---|:---|:---|:---|
|  | **Years Ended October 31,** | **Years Ended October 31,** | **Years Ended October 31,** |
|  | **2025** | **2024** | **2023** |
| Gyeonggi Green Energy Co., Ltd. ("GGE") | 46% | 18% | —% |
| Connecticut Light and Power | 15% | 21% | 13% |
| United Illuminating | 7% | 3% | 5% |
| ExxonMobil Technology and Engineering Company (f/k/a ExxonMobil Research and Engineering Company) ("EMTEC") | 6% | 8% | 8% |
| Esso Nederland B.V. ("Esso") | 5% | 10% | 2% |
| Ameresco/Sacramento Sewer | 2% | 7% | —% |
| Korea Southern Power Company ("KOSPO") | 1% | 1% | 31% |
| Korea Fuel Cell Co., Ltd. ("KFC") | —% | —% | 16% |
| &nbsp;&nbsp;Total | 82% | 68% | 75% |

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*Derivatives*

We do not use derivatives for speculative or trading purposes. The Company has an interest rate swap that is adjusted to fair value on a quarterly basis. The estimated fair value is based on Level 2 inputs including primarily the floating Secured

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Overnight Financing Rate ("SOFR") rate available to swap dealers. The valuation methodology involves comparison of (i) the sum of the present value of all quarterly variable rate payments based on a reset rate using the floating SOFR curve and (ii) the sum of the present value of all quarterly fixed rate payments on the notional amount, which is equivalent to the outstanding principal amount of the loan.

The Company has recorded certain natural gas purchase contracts at fair value which was the result of the net settling of certain natural gas purchases under contracts that were previously designated as normal purchase normal sale which resulted in a change to mark-to-market accounting. The fair values are adjusted on a quarterly basis. The estimated fair value is based on Level 2 inputs including future prices available to commodity brokers and risk-free rates which are based on Federal reserve yields. The valuation methodology involves utilizing the industry-convention energy swap model.

*Use of Estimates*

The preparation of financial statements and related disclosures in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingent assets and liabilities. Estimates are used in accounting for, among other things, revenue recognition, lease right-of-use assets and liabilities, excess, slow-moving and obsolete inventories, product warranty accruals, loss accruals on service agreements, share-based compensation expense, allowance for doubtful accounts, depreciation and amortization, impairment of goodwill and in-process research and development intangible assets, impairment of long-lived assets (including project assets), valuation of derivatives and contingencies. Estimates and assumptions are reviewed periodically, and the effects of revisions are reflected in the consolidated financial statements in the period they are determined to be necessary. Due to the inherent uncertainty involved in making estimates, actual results in future periods may differ from those estimates.

*Foreign Currency Translation*

The functional currency of the Company's parent entity, and the reporting currency for these consolidated financial statements, is the U.S. dollar. The functional currencies of our foreign subsidiaries are generally local currencies. The assets and liabilities of these entities are translated at the rate of exchange at the balance sheet date. Revenue and expenses are translated at the weighted average rate of exchange during the period. The translation of the financial statements of FCE Korea Ltd., FCES GmbH and Versa Power Systems Ltd. results in translation gains or losses, which are recorded in Accumulated other comprehensive loss within Stockholders' equity on the accompanying Consolidated Balance Sheets.

We are also subject to foreign currency transaction gains and losses as certain transactions are denominated in foreign currencies.

*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.

*Recent Accounting Guidance Not Yet Effective*

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.

#### Note 2. Revenue Recognition
*Contract Balances*

Contract assets as of October 31, 2025 and 2024 were $131.1 million ($82.1 million long-term) and $65.1 million ($28.3 million long-term), respectively. The contract assets relate to the Company's rights to consideration for work completed but not yet billed. These amounts are included on a separate line item as Unbilled receivables, and balances expected to be billed later than one year from the balance sheet date are included within Other assets on the accompanying Consolidated Balance Sheets. We bill customers for power platform and power platform component sales based on certain contractual milestones being reached. We bill service agreements based on the contract price and billing terms of the contracts. Generally, our Advanced Technologies contracts are billed based on actual revenues recorded, typically in the subsequent month. Some Advanced Technologies contracts are billed based on contractual milestones or costs incurred. The net change in contract assets represents amounts recognized as revenue offset by customer billings. For the years ended October 31, 2025 and 2024, a total of $30.3 million and $16.0 million, respectively, was transferred to accounts receivable from contract assets recognized at the beginning of the period.

Contract liabilities as of October 31, 2025 and 2024 were $8.7 million and $7.2 million, respectively. The contract liabilities relate to the advance billings to customers for services that will be recognized over time and in some instances for deferred revenue relating to variable consideration for previously sold products. The net change in contract liabilities represents customer billings offset by revenue recognized.

*Consideration Payable to a Customer*

As of October 31, 2023, the Company had recorded $6.3 million ($6.0 million long-term) as consideration payable to Toyota Motor North America ("Toyota"), which is included within Accrued liabilities and Long-term debt and other liabilities on the accompanying Consolidated Balance Sheets. The Company received payment for the sale of an investment tax credit with respect to the Toyota project at the Port of Long Beach during the year ended October 31, 2023. The net amount of $6.3 million is being recorded as a reduction to revenue during the period of measurement, which is the 20-year term of the hydrogen production and power purchase agreement between Toyota and the Company ("Toyota HPPA") that commenced in the first quarter of fiscal year 2024. The balance as of each of October 31, 2025 and 2024 was $6.0 million ($4.5 million long-term).

*Contract Modification*

As a result of the settlement reached with POSCO Energy Co., Ltd. ("POSCO Energy"), the Company evaluated its various license agreements with POSCO Energy as well as all of the terms of the settlement agreement with POSCO Energy, which was effective December 20, 2021 (the "Settlement Agreement"). As part of this analysis, the Company considered the accounting surrounding the execution of the Settlement Agreement, reviewed all elements related to its license agreements with POSCO Energy and the Settlement Agreement and considered any potential contingencies in these license agreements and whether any proceeds were related to the litigation settlement.

Under the terms of the Settlement Agreement, the Company agreed that its license agreements with POSCO Energy were not terminated, but instead were deemed to be amended such that POSCO Energy and its subsidiary, Korea Fuel Cell Co., Ltd. ("KFC", and with POSCO Energy, collectively, "PE Group"), only have the right (i) to provide maintenance and repair services to PE Group's then existing customers on then existing molten carbonate power generation and thermal projects under long-term service agreements then in force as well as long-term service agreements that had expired and were pending renewal as of the settlement date (collectively, "Existing LTSAs"), (ii) to supply replacement modules purchased from the Company only for their existing customers for existing molten carbonate power generation and thermal

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projects under Existing LTSAs and (iii) to own, operate and maintain all facilities and factories solely for the purposes set forth in (i) and (ii) above (collectively, the "Right to Service License") and further agreed to sell modules with a service warranty pursuant to a module sales agreement to be negotiated by the parties after execution of the Settlement Agreement. As such, the Company considers the execution of the Settlement Agreement to be a contract modification as it resulted in a change in both the scope and price of a contract with a customer. Therefore, the Company accounted for such modification under the contract modification guidance included within ASC 606 (Revenue from Contracts with Customers). Further, the Company noted that none of the parties to the Settlement Agreement specifically acknowledged any payment of damages or reimbursement of any costs related to the matters settled under the Settlement Agreement, which supports the conclusion that the overall settlement was a form of contract modification. Additionally, the transaction price allocated to the modified contract did not exceed the stand-alone selling prices ("SSP") of the performance obligations under the modified contract such that there was no indication of a premium that would indicate that a portion of the transaction price related to something other than the promised goods or services.

The Company identified two performance obligations in the Settlement Agreement which included the sale of 20 modules and an option to purchase an additional 14 modules. The Company assessed the SSP of the modules utilizing a cost-plus margin approach to arrive at $3.0 million per module which was recognized upon transfer of control of such modules to KFC via title transfer consistent with the Company's established revenue recognition policies. The Company is also providing a performance guarantee for up to seven years with each module to cover any annual output penalty that would need to be paid by PE Group to a customer. The Company determined that this performance guarantee represented variable consideration and estimated a value of $0.65 million per module, which resulted in accrual of $13.1 million as of October 31, 2022 upon the sale of twenty modules during the year ended October 31, 2022. A portion of this variable consideration was recognized as revenue when it was determined that there were no amounts due under the performance guarantee. In its analysis at the time of execution of the Settlement Agreement, the Company determined that it was probable that KFC would exercise its option to purchase an additional 14 modules (with a performance guarantee) beyond the firm order of 20 modules, to which it was contractually committed. KFC's right to purchase the additional 14 modules expired without being exercised on December 31, 2022, and as a result $9.1 million was recognized as product revenue during the year ended October 31, 2023.

The Company signed a LTSA with Noeul Green Energy Co., Ltd. ("Noeul Green Energy") in July 2023. Under this LTSA, once the Company, KFC/POSCO International Company, and Noeul Green Energy (the "LTSA Parties") agreed to the technical transfer specifications under a Final Acceptance Test (the "FAT") with respect to the transfer to Noeul Green Energy of 16 of the 20 modules previously sold by the Company to KFC pursuant to the Settlement Agreement, the LTSA Parties signed a document that released KFC/POSCO International Company from any obligations to service these modules, and concurrently transferred that obligation to the Company. The FAT is effective for 16 of the 20 modules sold to KFC pursuant to the Settlement Agreement, which are now used by Noeul Green Energy. Because the Company is no longer obligated to perform any service or other obligations under the Settlement Agreement with respect to the 16 modules now used by Noeul Green Energy, the Company recognized a ratable portion of the previously accrued variable consideration of $13.1 million which resulted in recognition of $10.5 million of product revenue during the year ended October 31, 2023.

*Joint Development Agreement and Rotterdam Pilot Project Purchase Order* 

Effective as of October 31, 2019, the Company entered into a Joint Development Agreement (as amended, the "Joint Development Agreement") with ExxonMobil Technology and Engineering Company (formerly known as ExxonMobil Research and Engineering Company) ("EMTEC"), pursuant to which the Company has engaged in exclusive research and development efforts with EMTEC to evaluate and develop new and/or improved carbonate fuel cells to reduce carbon dioxide emissions from industrial and power sources, in exchange for (i) payment by EMTEC of certain fees and costs (including research costs of up to $45.0 million) as well as certain milestone-based payments, and (ii) certain licenses.

In Amendment No. 1 to the Joint Development Agreement ("Amendment No. 1"), which was executed on October 29, 2021 and effective as of October 31, 2021, the Company and EMTEC agreed, among other things, to extend the term of the Joint Development Agreement to April 30, 2022. Amendment No. 1 allowed for the continuation of research intended to enable incorporation of design improvements to Company fuel cell design in order to support a decision to use the improvements in a potential future demonstration of the technology for capturing carbon at an ExxonMobil refinery located in Rotterdam, Netherlands (such demonstration, the "Rotterdam Project") and provided additional time to achieve the first milestone under the Joint Development Agreement.

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In a related letter agreement between the Company and EMTEC, dated as of October 28, 2021 and executed on October 29, 2021 (the "2021 Letter Agreement"), the Company agreed to invest with EMTEC in the Rotterdam Project, should EMTEC move forward with the Rotterdam Project. In the 2021 Letter Agreement, the Company agreed that, if (i) the Company achieved the first milestone under the Joint Development Agreement (which occurred in the first quarter of fiscal year 2022, resulting in a $5.0 million payment to the Company which the Company received in the second quarter of fiscal year 2022) and (ii) EMTEC and the Company executed a contractual agreement to proceed with the Rotterdam Project, then at EMTEC's option, the Company would either make an investment in the amount of $5.0 million in the Rotterdam Project or discount EMTEC's purchase of the Company's fuel cell module and detailed engineering design, as agreed to by the parties, required for the Rotterdam Project by said amount.

On April 29, 2022, the Company and EMTEC entered into Amendment No. 2 ("Amendment No. 2") to the Joint Development Agreement, which was effective as of April 30, 2022 and which increased the maximum amount of research costs to be reimbursed by EMTEC from $45.0 million to $50.0 million and further extended the term to December 31, 2022. In Amendment No. 2, the Company and EMTEC also agreed to conduct a joint market study to (a) define application opportunities, commercialization strategies, and development requirements, (b) identify partners for potential pilot/demonstration projects and (c) assess fuel cell/stack/module manufacturing scale-up and cost reduction.

On December 19, 2022, the Company and EMTEC entered into Amendment No. 3 ("Amendment No. 3") to the Joint Development Agreement, which was effective as of December 1, 2022. In Amendment No. 3, the Company and EMTEC agreed to further extend the term of the Joint Development Agreement such that it would end on August 31, 2023 and to further increase the maximum amount of research costs to be reimbursed by EMTEC from $50.0 million to $60.0 million. Amendment No. 3 (i) allowed for continuation of research intended to enable the parties to finalize data collection in support of the project gate decision for the Rotterdam Project, (ii) allowed for the continuation of the development, engineering and mechanical derisking of the Generation 2 Technology fuel cell module prototype, and (iii) allowed for studying the manufacturing scale-up and cost reduction of a commercial Generation 2 Technology fuel cell carbon capture facility.

On August 25, 2023, the Company and EMTEC entered into Amendment No. 4 to the Joint Development Agreement ("Amendment No. 4"), effective as of August 31, 2023. In Amendment No. 4, the Company and EMTEC agreed to further extend the term of the Joint Development Agreement such that it would end on March 31, 2024 and to further increase the maximum amount of research costs to be reimbursed by EMTEC from $60.0 million to $67.0 million. Amendment No. 4 allowed the parties the opportunity to continue (i) derisking of the Generation 2 Technology fuel cell module demonstration prototype and (ii) the joint marketing and sales efforts to inform development of a new business framework between the parties beyond the current joint development agreement structure.

During the year ended October 31, 2022, the Company achieved the first technical milestone under the Joint Development Agreement and received payment of $5.0 million. At the time, the Company did not recognize revenue in connection with this milestone achievement as a result of its agreement with EMTEC to either make a $5.0 million investment in the Rotterdam Project or discount EMTEC's purchase of the Company's fuel cell module and detailed engineering design for the Rotterdam Project by $5.0 million, should the Company enter into a contract with EMTEC to proceed with the Rotterdam Project.

In May 2023, the Company entered into a second letter agreement with EMTEC, pursuant to which the parties agreed that the conditions to the Company's agreement to invest in the Rotterdam Project were met in April 2023. As a result, the Company recognized $2.5 million of the $5.0 million milestone payment received in fiscal year 2022 as revenue across its deliverables to EMTEC – specifically, the Company recognized aggregate revenue of $2.0 million during fiscal years 2024 and 2023, and the remaining $0.5 million during fiscal year 2025. The other $2.5 million of the $5.0 million milestone payment received under the Joint Development Agreement in fiscal year 2022 was applied to discount EMTEC's purchase of the Company's fuel cell module and detailed engineering design for the Rotterdam Project.

On January 31, 2024, the Company received a purchase order valued at $11.6 million from Esso Nederland B.V. ("Esso"), an affiliate of Exxon Mobil Corporation and EMTEC, for fuel cell modules as well as engineering, procurement, fabrication, testing and delivery services required for the construction and implementation of the modular point source carbon capture pilot plant at the Rotterdam Project. During the year ended October 31, 2025, the Company and Esso executed three change orders totaling $5.0 million to the original purchase order, which increased the total purchase order value to $16.6 million. The Company expects that this pilot plant will be completed and commissioned in calendar year 2026.

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On and effective as of March 31, 2024, the Company and EMTEC entered into Amendment No. 5 ("Amendment No. 5") to the Joint Development Agreement. In Amendment No. 5, the Company and EMTEC further extended the term of the Joint Development Agreement such that it will end on December 31, 2026 (unless terminated earlier), so that the Company and EMTEC may pursue continued work to allow for technical readiness of the Generation 2 Technology fuel cell module as well as additional continuous technology development. In parallel with the Joint Development Agreement, the Company and EMTEC will pursue pioneer commercial deployments of the Generation 2 Technology with third parties, with the Company as the fuel cell module manufacturer for such deployments. Amendment No. 5 also removed the cap on the maximum amount of research costs to be reimbursed by EMTEC, and instead includes an expected annual budget for the anticipated work through the remaining term of the Joint Development Agreement of at least $10.0 million per year, subject to approval by EMTEC.

In addition, Amendment No. 5 provides the Company with the ability to pursue new carbon capture projects with third parties for the remaining duration of the term of the Joint Development Agreement using Generation 1 Technology or Generation 2 Technology (provided that the use of Generation 2 Technology must be limited to the use of Generation 2 physical fuel cell properties and design elements in Generation 1 Technology modules), with any new sales of such activities, authorized work, and carbon capture projects, when summed together, having the capability of capturing no more than 250,000 tons of CO<sub>2</sub> on a cumulative annual basis. Under Amendment No. 5, following expiration of the term of the Joint Development Agreement, the Company will also have the opportunity to continue to service continuing obligations for such projects entered into during the term of the Joint Development Agreement (e.g., completion of contracted builds, service and repair/replacement of components, etc.). To allow the Company to pursue such projects, in Amendment No. 5, EMTEC also granted to the Company a worldwide, non-exclusive, royalty-free, irrevocable (during the term of the Joint Development Agreement), non-sub-licensable license to EMTEC's Generation 1 Technology as well as to EMTEC's Generation 2 Technology physical fuel cell properties and design elements.

*Long-Term Service Agreement with Gyeonggi Green Energy Co., Ltd.*

On May 28, 2024, the Company and Gyeonggi Green Energy Co., Ltd. ("GGE") entered into a LTSA with respect to GGE's 58.8 MW fuel cell power platform in Hwaseong-si, South Korea (the "GGE Platform"). The GGE Platform is comprised of 21 SureSource 3000 molten carbonate fuel cells (each a "GGE Plant"). Each GGE Plant is comprised of two 1.4-MW carbonate fuel cell modules. Pursuant to the LTSA, GGE and the Company have agreed that (i) GGE will purchase from the Company 42 1.4-MW carbonate fuel cell modules to replace existing fuel cell modules at the GGE Platform, (ii) the Company will provide certain balance of plant replacement components if and to the extent the parties reasonably determine existing components should be replaced, and (iii) the Company will provide long term operations and maintenance services for the GGE Platform. The total amount payable by GGE under the LTSA for the 42 replacement fuel cell modules, balance of plant replacement components, and service is $159.6 million, with payments being and to be made over time as such replacement fuel cell modules are commissioned and the service obligations under the LTSA for such Plants commence. Of this $159.6 million, the Company recognized Product revenues of $66.0 million and Service agreements revenues of $5.0 million during the year ended October 31, 2025, and Product revenues of $18.0 million and Service agreements revenues of $1.9 million during the year ended October 31, 2024.

Pursuant to the LTSA with GGE, the Company will provide various performance guarantees for each GGE Plant related to power generation, fuel consumption, water consumption and heat production. If a GGE Plant fails to achieve such performance requirements, the Company may be required to compensate GGE for such underperformance.

The Company's service obligations under the LTSA with GGE commence with respect to individual GGE Plants as the Company replaces each GGE Plant's existing fuel cell modules and commissions the replacement fuel cell modules. The term of the LTSA with respect to each GGE Plant will continue for seven years from the date of commissioning of the replacement fuel cell modules for such GGE Plant.

*Remaining Performance Obligations*

Remaining performance obligations are the aggregate amount of total contract transaction price that is unsatisfied or partially unsatisfied. As of October 31, 2025, the Company's total remaining performance obligations were: $162.4 million for service agreements (expected to be recognized as revenue over approximately three to fifteen years which is based on the remaining term of the service agreements), $373.2 million for generation PPAs (expected to be recognized as revenue over approximately eighteen to nineteen years based on the PPA terms remaining), $5.7 million for Advanced

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Technologies contracts (expected to be recognized within approximately two years) and $66.2 million for product purchase agreements (expected to be recognized as revenue over approximately two years based on the replacement schedule under the applicable LTSA).

#### Note 3. Tax Equity Financings and Investment Tax Credit Sale
*Derby Tax Equity Financing Transaction*

The Company closed on a tax equity financing transaction on October 31, 2023 with Franklin Park 2023 FCE Tax Equity Fund, LLC ("Franklin Park") for two fuel cell power plant installations -- the 14.0 MW Derby Fuel Cell Project and the 2.8 MW SCEF Fuel Cell Project, both located in Derby, Connecticut (collectively, the "Derby Projects"). Franklin Park's tax equity commitment totaled $30.2 million. Of this amount, approximately $9.1 million was received on October 31, 2023 and the remaining approximately $21.1 million was received during the year ended October 31, 2024. In connection with the initial closing of this tax equity financing transaction in fiscal year 2023, the Company paid closing costs of approximately $1.8 million, which included appraisal fees, title insurance expenses and legal and consulting fees.

This transaction was structured as a "partnership flip", which is a structure commonly used by tax equity investors in the financing of renewable energy projects. Under this partnership flip structure, a partnership, in this case Derby Fuel Cell Holdco, LLC (the "Derby Partnership"), was organized to acquire from FuelCell Energy Finance II, LLC, a wholly-owned subsidiary of the Company, all outstanding equity interests in the Derby Projects. FuelCell Energy Finance II owns the Derby Projects and is the party to the power purchase agreements and all project agreements. At the closing of the transaction, the Derby Projects are owned by the Derby Partnership, with Franklin Park holding the Class A Units, and Fuel Cell Energy Derby Finance Holdco, LLC holding the Class B Units.

Under most partnership flip structures, tax equity investors agree to receive a minimum target rate of return, typically on an after-tax basis. Prior to receiving a contractual rate of return or a date specified in the contractual arrangements, Franklin Park will receive substantially all of the non-cash value attributable to the Derby Projects, which includes accelerated depreciation and Section 48(a) investment tax credits; however, the Company will receive a majority of the cash distributions (based on the operating income of the Derby Projects), which are to be paid quarterly. After Franklin Park receives its contractual rate of return, the Company will receive approximately 95% of the cash and tax allocations.

Since the Derby Projects became operational during the first quarter of fiscal year 2024, the Company has begun to allocate profits and losses to noncontrolling interests under the hypothetical liquidation at book value ("HLBV") method. For the year ended October 31, 2025, the net income attributable to noncontrolling interests totaled $1.5 million, and for the year ended October 31, 2024, the net loss attributable to noncontrolling interests totaled $(28.3) million. During the years ended October 31, 2025 and 2024, the Company made priority return distributions to Franklin Park of $1.3 million and $1.0 million, respectively. There were no priority return distributions or amounts allocated to noncontrolling interest for the year ended October 31, 2023 for the Derby Partnership because the Derby Projects were not yet operational.

*Groton Tax Equity Financing Transaction*

The Company closed on a tax equity financing transaction in August 2021 with East West Bancorp, Inc. ("East West Bank") for the 7.4 MW fuel cell project located on the U.S. Navy Submarine Base in Groton, CT (the "Groton Project"). East West Bank's tax equity commitment totaled $15.0 million.

This transaction was structured as a partnership flip. Under this partnership flip structure, a partnership, in this case Groton Station Fuel Cell Holdco, LLC (the "Groton Partnership"), was organized to acquire from FuelCell Energy Finance II, LLC, a wholly-owned subsidiary of the Company, all outstanding equity interests in Groton Station Fuel Cell, LLC (the "Groton Project Company") which in turn owns the Groton Project and is the party to the power purchase agreement and all project agreements. At the closing of the transaction, the Groton Partnership is owned by East West Bank, holding Class A Units, and Fuel Cell Energy Finance Holdco, LLC, a subsidiary of FuelCell Energy Finance, LLC, holding Class B Units. The acquisition of the Groton Project Company by the Groton Partnership was funded in part by an initial draw from East West Bank and funds contributed downstream to the Groton Partnership by the Company. The initial closing occurred on August 4, 2021, upon the satisfaction of certain conditions precedent (including the receipt of an appraisal and confirmation that the Groton Project would be eligible for the investment tax credit under Section 48 of the Internal Revenue Code of 1986, as amended). In connection with the initial closing, the Company drew down $3.0 million, of which approximately $0.8 million was used to pay closing costs including appraisal fees, title insurance expenses and legal

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and consulting fees. Under the original terms of the Company's agreement with East West Bank, the Company would have been eligible to draw the remaining amount of the commitment, approximately $12 million, once the Groton Project achieved commercial operations.

On July 7, 2022, the Company and East West Bank amended their tax equity financing agreement and extended the commercial operations deadline to September 30, 2022. In addition, in the July 7, 2022 amendment to the tax equity financing agreement, the terms of East West Bank's remaining investment commitment of $12.0 million were modified such that East West Bank will contribute $4.0 million on each of the first, second and third anniversaries of the Groton Project achieving commercial operations, rather than contributing the full $12.0 million when the Groton Project achieved commercial operations. Such contributions are subject to certain customer conditions precedent, including a third-party certification by an independent engineer that the plant is operating in conformance with the amended and restated power purchase agreement. When such contributions are made by East West Bank, the funds are distributed upstream to the Company, as a reimbursement of prior construction costs incurred by the Company. In conjunction with this amendment, the Company agreed to pay aggregate fees of $0.5 million (which are inclusive of the fees from the previous extensions of the commercial operations deadline), which were payable by the Company upon commencement of commercial operations of the plant.

On October 4, 2022, the Company and East West Bank further amended their tax equity financing agreement to extend the deadline by which commercial operations were to be achieved at the Groton Project from September 30, 2022 to November 30, 2022. In addition, modifications to the Groton Project documents between Connecticut Municipal Electric Energy Cooperative ("CMEEC") and the Company as a result of the agreement between those parties to commence operations at less than 7.4 MW required the approval of East West Bank as part of East West Bank's rights under the agreement between East West Bank and the Company. On December 16, 2022, the Company and CMEEC agreed that, for all purposes, the commercial operations date has occurred, and, accordingly, East West Bank no longer had a right to have its investment returned as a result of the Company's failure to achieve commercial operations in a timely fashion, and this investment became a non-redeemable noncontrolling interest as of December 16, 2022. In addition, on December 16, 2022, the Company paid the aggregate fees of $0.5 million described above to East West Bank.

On December 16, 2022, the Company declared and, per the terms of the Amended and Restated Power Purchase Agreement between the Company and CMEEC entered into on that date (the "Amended and Restated PPA"), CMEEC agreed that the Groton Project was commercially operational at 6.0 MW. As of December 16, 2022, the Groton Project is reported as a part of the Company's generation operating portfolio. The Amended and Restated PPA allowed the Company to operate the plants at a reduced output of approximately 6.0 MW while a Technical Improvement Plan ("TIP") was implemented with the goal of bringing the platform to its rated capacity of 7.4 MW by December 31, 2023. In conjunction with entering into the Amended and Restated PPA, the Navy also provided its authorization to proceed with commercial operations at 6.0 MW. The Company paid CMEEC an amendment fee of $1.2 million and incurred performance guarantee fees under the Amended and Restated PPA as a result of operating at an output below 7.4 MW during implementation of the TIP.

During the first quarter of fiscal year 2024, the Company completed the TIP to bring the Groton Project to its rated capacity and the Groton Project reached its design rated output of 7.4 MW. The Company achieved all conditions precedent required for the first annual funding from East West Bank under the tax equity financing transaction between the Company and East West Bank and, as a result, the Company received a $4.0 million contribution during the year ended October 31, 2024 which is recorded as noncontrolling interest on the Consolidated Balance Sheets. The Company received the second annual funding from East West Bank of $4.0 million during the year ended October 31, 2025, which is recorded as noncontrolling interest on the Consolidated Balance Sheets.

Under most partnership flip structures, tax equity investors agree to receive a minimum target rate of return, typically on an after-tax basis. Prior to receiving a contractual rate of return or a date specified in the contractual arrangements, East West Bank will receive substantially all of the non-cash value attributable to the Groton Project, which includes accelerated depreciation and Section 48(a) investment tax credits; however, the Company will receive a majority of the cash distributions (based on the operating income of the Groton Project), which are paid quarterly. After East West Bank receives its contractual rate of return, the Company will receive approximately 95% of the cash and tax allocations. The Company (through a separate wholly owned entity) entered into a back leverage debt financing transaction during fiscal year 2023 and is using the cash distributions from the Groton Partnership to service the debt (refer to Note. 12. "Debt" for additional information). During the year ended October 31, 2025 and 2024, the Company made priority return distributions

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to East West Bank of $0.2 million and $0.1 million, respectively. No priority return distributions were made during the year ended October 31, 2023.

For the years ended October 31, 2025, 2024 and 2023, the net loss attributable to noncontrolling interests totaled $(3.6) million, $(3.5) million and $(2.5) million, respectively.

*Yaphank Tax Equity Financing Transaction*

The Company closed on a tax equity financing transaction in November 2021 with Renewable Energy Investors, LLC ("REI") for the 7.4 MW fuel cell project (the "LIPA Yaphank Project") located in Yaphank Long Island. REI's tax equity commitment totaled $12.4 million.

This transaction was structured as a partnership flip. Under this partnership flip structure, a partnership, in this case YTBFC Holdco, LLC (the "Yaphank Partnership"), was organized to acquire from FuelCell Energy Finance II, LLC, a wholly-owned subsidiary of the Company, all outstanding equity interests in Yaphank Fuel Cell Park, LLC, which in turn owns the LIPA Yaphank Project and is the party to the power purchase agreement and all project agreements. REI holds Class A Units in the Yaphank Partnership and a subsidiary of the Company holds the Class B Units. The initial funding occurred on December 13, 2021, upon the satisfaction of certain conditions precedent (including the receipt of an appraisal and confirmation that the LIPA Yaphank Project would be eligible for the investment tax credit under Section 48 of the Internal Revenue Code of 1986, as amended). In connection with the initial closing, the Company was able to draw down approximately $3.2 million, of which approximately $0.4 million was used to pay closing costs, including title insurance expenses and legal and consulting fees. The Company drew down the remaining amount of the commitment, approximately $9.2 million, in December 2021 and January 2022, after the LIPA Yaphank Project achieved commercial operation. These proceeds were partially offset by legal and advisory fees of approximately $0.4 million.

The Company determined during the second quarter of fiscal year 2022 that there was an overpayment by REI of the Class A Member Capital Contribution of $0.5 million and as such the Company refunded this amount back to REI, reducing the REI tax equity commitment to $11.9 million. During the years ended October 31, 2025, 2024 and 2023, the Company made priority return distributions to REI of $0.7 million, $0.6 million and $0, respectively, which was calculated at a 2.73% annual interest rate on invested tax equity capital.

Under a partnership flip structure, tax equity investors agree to receive a minimum target rate of return, typically on an after-tax basis. Prior to receiving a contractual rate of return or a date specified in the contractual arrangements, REI will receive substantially all of the non-cash value attributable to the LIPA Yaphank Project, which includes accelerated depreciation and Section 48(a) investment tax credits; however, the Company will receive a majority of the cash distributions (based on the operating income of the LIPA Yaphank Project), which are paid quarterly. After REI receives its contractual rate of return, the Company will receive approximately 95% of the cash and tax allocations.

Under this partnership flip structure, after the fifth anniversary following achievement of commercial operations, we have an option to acquire all of the equity interests that REI holds in the Yaphank Partnership starting after REI receives its contractual rate of return (the anticipated "flip" date) after the LIPA Yaphank Project is operational. If we exercise this option, we will be required to pay the greater of the following: (i) the fair market value of REI's equity interest at the time the option is exercised or (ii) an amount equal to 10.3% of REI's capital contributions. This option payment is to be grossed up for federal taxes if it exceeds the tax basis of the Yaphank Partnership Class A Units.

For the years ended October 31, 2025, 2024 and 2023, net (loss) income attributable to noncontrolling interest for the Yaphank Partnership totaled $(1.4) million, $0.9 million and $2.0 million, respectively.

*Toyota Investment Tax Credit Sale*

On October 31, 2023, REI purchased investment tax credits ("ITCs") from Long Beach Trigen, LLC ("LB Seller"), a subsidiary of the Company. The Toyota project qualified for $8.4 million of ITCs. The total amount of the purchase was $7.1 million or $0.85 per $1.00 of purchased ITCs. The Company incurred transaction costs of $0.4 million for legal costs and advisory fees. Toyota Motor North America ("Toyota") has a contractual right under the Toyota HPPA to receive the benefit of the ITCs and, as a result, the Company recorded the value of the net amount due to Toyota as an accrued liability totaling $6.3 million, which will be reduced over time based on the performance under the terms of the contract with

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Toyota (see Note 10. "Accrued Liabilities" for further information). The balance of this accrued liability was $6.0 million as of both October 31, 2025 and October 31, 2024.

#### Note 4. Impairment and Restructuring
***Restructuring***

In September and November 2024, the Company undertook restructuring actions, which included reductions in force that collectively represented approximately 17% of the Company's global workforce and also included reduced spending for product development, overhead and other costs. These restructuring actions sought to reduce operating costs and better align the Company's workforce with the needs of the Company's business and its customers. The workforce was reduced across our global operations including Calgary, Canada and at our North American production facility in Torrington, Connecticut, at our corporate offices in Danbury, Connecticut and at other remote locations.

On June 4, 2025, the Board of Directors of the Company (the "Board") approved a global restructuring plan to further reduce operating costs, realign resources toward advancing the Company's core carbonate technologies, and protect the Company's competitive position amid slower-than-expected market investments in clean energy. This plan included: (i) a workforce reduction of 122 employees, or approximately 22% of our workforce across the U.S., Canada and Germany (which reduction was implemented on June 5, 2025), (ii) a significant reduction of discretionary overhead spending, (iii) recalibration of the Torrington manufacturing facility production schedule to align with contracted demand, rather than forecasted demand, which, without continued growth in our closed order book, would result in a decrease in our annualized production rate, (iv) the deferral of certain compensation and benefit obligations, (v) the cessation of the majority of development efforts with respect to our solid oxide technology, and (vi) other targeted cost-saving measures.

Restructuring expense relating to severance for eliminated positions of $5.3 million and $2.6 million was recognized in the years ended October 31, 2025 and 2024, respectively, which has been presented under a separate caption in the Consolidated Statements of Operations and Comprehensive Loss. The accrued restructuring balances as of October 31, 2025 and October 31, 2024 are included within Accrued liabilities on the accompanying Consolidated Balance Sheets. The following table summarizes the activity in accrued severance costs (in thousands):

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| | | | | |
|:---|:---|:---|:---|:---|
|  | **September 2024 Restructuring** | **November 2024 Restructuring** | **June 2025 Restructuring** | **Total** |
| &nbsp;&nbsp;&nbsp;&nbsp;Balance as of October 31, 2023 | $- | $- | $- | $- |
| Restructuring expense recognized | 2562 | - | - | 2562 |
| Restructuring expense payouts | (327) | - | - | (327) |
| &nbsp;&nbsp;&nbsp;&nbsp;Balance as of October 31, 2024 | $2235 | $- | $- | $2235 |
| Restructuring expense recognized | - | 1542 | 3795 | 5337 |
| Restructuring expense payouts | (2235) | (1487) | (1634) | (5356) |
| &nbsp;&nbsp;&nbsp;&nbsp;Balance as of October 31, 2025 | $- | $55 | $2161 | $2216 |

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***Impairment***

In conjunction with the restructuring plan approved by the Board and undertaken by the Company in June 2025, the Company ceased certain commercialization and capacity expansion activities related to its solid oxide technology performed by its subsidiaries, Versa Power Systems, Ltd. and Versa Power Systems, Inc. (collectively, the "Versa reporting unit"). As a result, the Company identified goodwill, in-process research and development ("IPR&D") intangible assets, related inventory and property, plant and equipment ("PP&E"), in each case related to the Company's prior investments in the Versa reporting unit that might be impaired. The Company tested the fair value of the IPR&D intangible assets using the replacement cost method to establish a fair value according to Accounting Standards Codification ("ASC") Topic 350, *Intangibles, Goodwill and Other ("ASC 350"),* and determined that the carrying value of the IPR&D intangible assets was in excess of their fair value and that an impairment of the IPR&D intangible assets existed as of July 31, 2025. The Company also tested the fair value of the Versa reporting unit using the adjusted net asset value method according to ASC 350 to establish a fair value, and determined that the carrying value of the equity in the Versa reporting unit was in excess of its fair value and that an impairment of goodwill existed as of July 31, 2025. As part of the adjusted net asset value method to establish the fair value of the equity in the Versa reporting unit, impairments of certain inventory and PP&E assets were also identified as of July 31, 2025, as the carrying values of these assets exceeded their fair values.

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In connection with the impairment testing of the Versa reporting unit, the Company estimated the fair values of IPR&D intangible assets, inventory, and PP&E using valuation techniques consistent with ASC Topic 820 – *Fair Value Measurement*. The IPR&D intangible assets were valued using the replacement cost method, selected due to the absence of reliable cash flow projections and market comparable information. Inputs included internal development costs and benchmarked developer profit and obsolescence factors. Inventory was written down to zero based on internal assessments of recoverability, lack of alternative use, and the strategic decision to cease commercialization efforts on solid oxide technology. PP&E was valued using a combination of the cost and market approaches, depending on asset type and data availability. The cost approach was applied to specialized assets with limited market activity, while market data and supplier quotes supported valuation of general-use assets. Goodwill was impaired using the adjusted net asset value method, as the reporting unit lacked historical revenue and viable projections to support income or market-based approaches. While certain observable inputs were considered, the valuations primarily relied on internal assumptions and management estimates. Accordingly, all fair value measurements were classified as Level 3 within the fair value hierarchy.

In addition, the Company has solid oxide inventory located in Torrington, Connecticut, and, due to the cessation of certain commercialization and capacity expansion activities related to its solid oxide technology, this solid oxide inventory was identified and tested to determine whether its net recoverable value ("NRV") was lower than its cost, according to ASC Topic 330, *Inventory*. The Company determined that the carrying value of this inventory was in excess of its NRV and that an impairment of the inventory existed as of July 31, 2025. The Company estimated NRV of this solid oxide inventory by considering its current ability to sell or use the inventory through existing sales/service channels, its ability to sell the inventory at a discounted price through existing sales/service channels, and its ability to use the inventory in other future projects.

Further, the Company previously made certain capacity expansion investments in PP&E with long lead times for its Torrington, Connecticut manufacturing facility and, as a result of the slower-than-expected pace of market developments, certain of this PP&E was identified and tested for recoverability in accordance with ASC Topic 360-10, *Impairment and Disposal of Long-Lived Assets,* using the market method. As a result, the Company determined that the carrying value of this PP&E was in excess of its fair value and that an impairment existed as of July 31, 2025.

Due to the impairments identified above, the Company recognized a total impairment expense of $65.8 million for the year ended October 31, 2025, which is presented as Impairment expense within operating expenses in the Consolidated Statements of Operations and Comprehensive Loss. Of the $65.8 million, approximately $42.1 million was related to PP&E, approximately $9.0 million was related to inventory, approximately $9.3 million was related to IPR&D intangible assets, approximately $4.1 million was related to goodwill and approximately $1.3 million was related to purchase order commitments.

To the extent there are further changes in market conditions or the performance of the Company's long-lived assets, the Company may incur additional impairment expenses in the future.

#### Note 5. Investments – Short-Term
The Company began to invest in U.S. Treasury Securities during fiscal year 2023. Outstanding U.S. Treasury Securities were classified as held-to-maturity and were recorded at amortized cost. The contractual maturities of the outstanding U.S. Treasury Securities as of October 31, 2024 were within one year and the weighted average yield to maturity was 4.78%. As of October 31, 2025, all of our previously-held U.S. Treasury Securities had matured and the funds received upon maturity were not reinvested. The following table summarizes the amortized cost basis and fair value (based on quoted market prices) of U.S. Treasury Securities as of October 31, 2025 and 2024 (in thousands):

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| | | | | |
|:---|:---|:---|:---|:---|
|  | **Amortized**<br>**cost** | **Gross unrealized**<br>**gains** | **Gross unrealized**<br>**losses** | <br>**Fair value** |
| U.S. Treasury Securities |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;As of October 31, 2025 | $- | $- | $- | $- |
| &nbsp;&nbsp;&nbsp;&nbsp;As of October 31, 2024 | $109123 | $2 | $- | $109125 |

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**Note 6. Inventories**

Inventories (short and long-term) as of October 31, 2025 and 2024 consisted of the following (in thousands):

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| | | |
|:---|:---|:---|
|  | **October 31,**<br>**2025** | **October 31,**<br>**2024** |
| Raw materials | $35234 | $35989 |
| Work-in-process <sup>(1)</sup> | 54178 | 80457 |
| &nbsp;&nbsp;&nbsp;&nbsp;Inventories | 89412 | 116446 |
| Inventories – current | (86196) | (113703) |
| Inventories – long-term <sup>(2)</sup> | $3216 | $2743 |

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&nbsp;&nbsp;&nbsp;&nbsp;(1) Work-in-process includes the standard components of inventory used to build the typical modules or module components that are intended to be used in future project asset construction or power platform orders or for use under the Company's service agreements.

&nbsp;&nbsp;&nbsp;&nbsp;(2) Long-term inventory includes modules that are contractually required to be segregated for use as replacement modules for a specific project asset .

Raw materials consist mainly of various nickel powders and steels, various other components used in producing cell stacks and purchased components for BOP. Work-in-process inventory is comprised of material, labor, and overhead costs incurred to build fuel cell stacks and modules, which are subcomponents of a power platform.

During the year ended October 31, 2025, the Company recognized an impairment expense of $9.0 million related to certain solid oxide inventories as a result of certain actions taken by the Company pursuant to the restructuring plan undertaken by the Company in June 2025. See Note 4. "Impairment and Restructuring" for additional information regarding the restructuring plan and the impairment expense.

#### Note 7. Project Assets
Project assets as of October 31, 2025 and 2024 consisted of the following (in thousands):

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| | | | |
|:---|:---|:---|:---|
|  | **October 31,**<br>**2025** | **October 31,**<br>**2024** | **Estimated**<br>**Useful Life** |
| Project Assets – Operating | $306697 | $308503 | 4-20 years |
| &nbsp;&nbsp;&nbsp;&nbsp;Accumulated depreciation | (90622) | (66542) |  |
| Project Assets – Operating, net | 216075 | 241961 |  |
| Project Assets – Construction in progress | 772 | 170 | 7-20 years |
| Project Assets, net | $216847 | $242131 |  |

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The estimated useful lives of these project assets are 20 years for BOP and site construction, and four to seven years for modules. Project assets as of October 31, 2025 and 2024 included twelve completed, commissioned installations generating power with respect to which the Company has a PPA with the end-user of power and site host with a net aggregate value of $216.1 million and $242.0 million as of October 31, 2025 and 2024, respectively. Certain of these assets are the subject of sale-leaseback arrangements with Crestmark.

Project assets as of October 31, 2025 and 2024 also include installations with carrying values of $0.8 million and $0.2 million, respectively, which are being developed and constructed by the Company in connection with projects for which we have entered into PPAs or projects for which we expect to secure PPAs or otherwise recover the asset value and which have not yet been placed in service.

During fiscal year 2025, there were no impairment charges to project assets.

*Fiscal Year 2024 Charges, Including Impairment Charges*

The 250 kW Trinity College project and the 1.0 MW UConn project were included in "Construction in progress" as of October 31, 2024. The units to be installed at Trinity College and UConn were to be first article units of our solid oxide power generation product. In reviewing our project cost estimates for these PPAs, it was determined that expected project costs for these PPAs would exceed the expected cash flows under the PPAs and therefore an impairment charge was

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required. As a result, the Company recorded an impairment charge of $1.3 million that represents the unrecoverable costs incurred through October 31, 2024 for the Trinity College and UConn projects, which have been expensed as generation cost of revenues.

In addition, the Company incurred additional non-recoverable costs of $3.6 million associated with work at the Toyota site for the installation of ancillary equipment during the year ended October 31, 2024. This is consistent with non-recoverable costs at the Toyota project that were expensed as generation cost of revenues, as discussed in the fiscal year 2023 discussion below.

*Fiscal Year 2023 Charges, Including Impairment Charges*

The Toyota project was included in "Construction in progress" as of October 31, 2023. It was determined in the fourth quarter of fiscal year 2021 that a potential source of renewable natural gas ("RNG") at favorable pricing was no longer sufficiently probable and that market pricing for RNG had significantly increased, resulting in the determination that the project was expected to generate negative cash flows and that, therefore, the carrying value of the project asset was no longer recoverable. Refer to Note 20. "Commitments and Contingencies" for more information regarding fuel risk exposure. As this project was being constructed, only inventory components that could be redeployed for alternative use were capitalized. For the year ended October 31, 2023, non-recoverable costs incurred of $22.9 million have been expensed as generation cost of revenues.

During fiscal year 2023, the Company recorded an impairment charge of $2.4 million related to a project for which a PPA was ultimately not awarded.

Impairment charges for fiscal years 2024 and 2023 are recorded as cost of generation revenues in the Consolidated Statements of Operations and Comprehensive Loss.

Depreciation expense for project assets was $31.1 million, $26.9 million and $19.0 million for the years ended October 31, 2025, 2024 and 2023, respectively.

Project construction costs incurred for long-term project assets are reported as investing activities in the Consolidated Statements of Cash Flows. The proceeds received from the sale and subsequent leaseback of project assets are classified as "Cash flows from financing activities" within the Consolidated Statements of Cash Flows and are classified as a finance obligation within "Current portion of long-term debt" and "Long-term debt and other liabilities" on the Consolidated Balance Sheets (refer to Note 12. "Debt" for more information).

#### Note 8. Property, Plant and Equipment
Property, plant and equipment as of October 31, 2025 and 2024 consisted of the following (in thousands):

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| | | | |
|:---|:---|:---|:---|
|  | **October 31,**<br>**2025** | **October 31,**<br>**2024** | **Estimated** <br>**Useful Life** |
| Land | $524 | $524 |  |
| Building and improvements | 23820 | 26581 | 10-26 years |
| Machinery, equipment and software | 147810 | 144242 | 3-8 years |
| Furniture and fixtures | 5063 | 5451 | 10 years |
| Construction in progress | 37356 | 68588 |  |
|  | 214573 | 245386 |  |
| &nbsp;&nbsp;Accumulated depreciation | (118137) | (114700) |  |
| Property, plant and equipment, net | $96436 | $130686 |  |

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During the year ended October 31, 2025, the Company recognized an impairment expense of $42.1 million related to certain property, plant and equipment as a result of certain actions taken by the Company pursuant to the restructuring plan undertaken by the Company in June 2025. See Note 4. "Impairment and Restructuring" for additional information regarding the restructuring plan and the impairment expense. There were no impairments of property, plant and equipment for the years ended October 31, 2024 and 2023.

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Depreciation expense for property, plant and equipment was $8.0 million, $8.0 million and $5.1 million for the years ended October 31, 2025, 2024 and 2023, respectively.

#### Note 9. Goodwill and Intangible Assets
As of October 31, 2024, the Company had goodwill of $4.1 million and intangible assets of $14.8 million that were recorded in connection with the Company's 2012 acquisition of Versa Power Systems, Inc. ("Versa Inc.") and the 2019 Bridgeport Fuel Cell Project acquisition.

The Versa Inc. acquisition intangible asset represented indefinite-lived IPR&D for cumulative research and development efforts associated with the development of solid oxide fuel cell stationary power generation. As a result of the restructuring plan undertaken by the Company in June 2025, which ceased certain commercialization and capacity expansion activities related to its solid oxide technology primarily performed by the Versa reporting unit, the Company recognized impairment expenses equal to the carrying value of the goodwill in Versa Inc. of $4.1 million, and impairment expenses equal to the carrying value of the IPR&D intangible assets in Versa Inc. of $9.3 million during the year ended October 31, 2025. See Note 4. "Impairment and Restructuring" for additional information regarding the restructuring plan and the impairment expenses. Additionally, there were no impairments of goodwill or the IPR&D intangible asset during the years ended October 31, 2024 and 2023.

As of October 31, 2025, the Company had intangible assets of $3.9 million that were recorded in connection with the 2019 Bridgeport Fuel Cell Project acquisition.

Amortization expense for the Bridgeport Fuel Cell Project-related intangible asset was $1.3 million for each of the years ended October 31, 2025, 2024 and 2023.

The following tables summarize the Company's intangible assets as of October 31, 2025 and 2024 (in thousands):

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| | | | |
|:---|:---|:---|:---|
| **As of October 31, 2025** | **Gross Amount** | **AccumulatedAmortization** | **Net Amount** |
| In-Process Research and Development | $- | $- | $- |
| Bridgeport PPA | 12320 | (8429) | 3891 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total** | $12320 | $(8429) | $3891 |
| **As of October 31, 2024** | **Gross Amount** | **AccumulatedAmortization** | **Net Amount** |
| In-Process Research and Development | $9592 | $- | $9592 |
| Bridgeport PPA | 12320 | (7133) | 5187 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total** | $21912 | $(7133) | $14779 |

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Amortization expense is recorded on a straight-line basis and future amortization expense will be $1.3 million per year until the Bridgeport PPA is fully amortized.

#### Note 10. Accrued Liabilities
Accrued liabilities as of October 31, 2025 and 2024 consisted of the following (in thousands):

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| | | |
|:---|:---|:---|
|  | **October 31,**<br>**2025** | **October 31,**<br>**2024** |
| Accrued payroll and employee benefits <sup>(1)</sup> | $10256 | $9808 |
| Consideration payable to a customer <sup>(2)</sup> | 2515 | 2515 |
| Accrued service agreement and PPA costs <sup>(3)</sup> | 11863 | 10574 |
| Accrued legal, taxes, professional and other | 4468 | 5230 |
| Accrued severance costs <sup>(4)</sup> | 2216 | 2235 |
| &nbsp;&nbsp;&nbsp;&nbsp;Accrued liabilities | $31318 | $30362 |

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&nbsp;&nbsp;&nbsp;&nbsp;(1) The balance in this account represents accrued payroll, payroll taxes and accrued bonus for both periods. The increase in the account balance relates to an increase in accrued bonus as of October 31, 2025.

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&nbsp;&nbsp;&nbsp;&nbsp;(2) The balance represents the net amount due to Toyota as an accrued liability which will be reduced over time based on the performance under the terms of the Toyota HPPA.

&nbsp;&nbsp;&nbsp;&nbsp;(3) Accrued service agreement costs include loss accruals on service contracts of $8.4 million as of October 31, 2025, which decreased from $9.0 million as of October 31, 2024. The decrease is the result of changes in estimates regarding timing of future module exchanges and future module replacement costs. The accruals for performance guarantees on service agreements and PPAs increased from $1.5 million as of October 31, 2024 to $2.9 million as of October 31, 2025.

&nbsp;&nbsp;&nbsp;&nbsp;(4) Accrued severance costs represent amounts accrued relating to restructuring activities and workforce reductions that occurred in September 2024, November 2024, and June 2025. Refer to Note 4. "Impairment and Restructuring" for more information about the restructurings.

#### Note 11. Leases
The Company enters into operating and finance lease agreements for the use of real estate, vehicles, information technology equipment, and certain other equipment. We determine if an arrangement contains a lease at inception, which is the date on which the terms of the contract are agreed to and the agreement creates enforceable rights and obligations. The impacts of accounting for operating leases are included in Operating lease right-of-use assets, Operating lease liabilities, and Long-term operating lease liabilities in the Company's Consolidated Balance Sheets. Finance leases are not considered significant to the Company's Consolidated Balance Sheets or Consolidated Statements of Operations and Comprehensive Loss.

Operating lease expense for each of the years ended October 31, 2025 and 2024 was $1.4 million. Operating lease expense for the year ended October 31, 2023 was $1.5 million. As of October 31, 2025, the weighted average remaining lease term (in years) was approximately 17.4 years and the weighted average discount rate was 7.8%. Lease payments made during the years ended October 31, 2025, 2024 and 2023 totaled $1.3 million, $1.3 million, and $1.2 million, respectively.

As of October 31, 2025, undiscounted maturities of operating lease liabilities were as follows (in thousands):

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| | |
|:---|:---|
|  | **OperatingLeases** |
| Due Year 1 | $1463 |
| Due Year 2 | 1565 |
| Due Year 3 | 1827 |
| Due Year 4 | 1251 |
| Due Year 5 | 1120 |
| Thereafter | 17428 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total undiscounted lease payments | 24654 |
| Less imputed interest | (11768) |
| &nbsp;&nbsp;&nbsp;&nbsp;Total discounted lease payments | $12886 |

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#### Note 12. Debt
Debt as of October 31, 2025 and 2024 consisted of the following (in thousands):

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| | | |
|:---|:---|:---|
|  | **October 31,**<br>**2025** | **October 31,**<br>**2024** |
| Export-Import Bank of the United States Financing Facility | $9106 | $10104 |
| Liberty Bank Term Loan Agreement (Derby Senior Back Leverage Loan Facility) | 5204 | 5825 |
| Connecticut Green Bank Term Loan Agreement (Derby Senior Back Leverage Loan Facility) | &nbsp;&nbsp;&nbsp;&nbsp;2402 | 2689 |
| Connecticut Green Bank Loan (Derby Subordinated Back Leverage Loan Facility) | &nbsp;&nbsp;&nbsp;&nbsp;3500 | 3500 |
| Connecticut Green Bank Loan (Groton Subordinated Back Leverage Loan Facility) | 8000 | 8000 |
| Liberty Bank Term Loan Agreement (Groton Senior Back Leverage Loan Facility) | 4966 | 5437 |
| Amalgamated Bank Loan (Groton Senior Back Leverage Loan Facility) | 4936 | 5420 |
| Finance obligation for sale-leaseback transactions | 18803 | 18811 |
| State of Connecticut Loan | 5123 | 6024 |
| OpCo Financing Facility | 60868 | 70067 |
| Deferred finance costs | (3265) | (4215) |
| &nbsp;&nbsp;&nbsp;&nbsp;Total debt and finance obligations | &nbsp;&nbsp;&nbsp;&nbsp;119643 | &nbsp;&nbsp;&nbsp;&nbsp;131662 |
| Current portion of long-term debt and finance obligations | (15847) | (15924) |
| &nbsp;&nbsp;&nbsp;&nbsp;Long-term debt and finance obligations | $&nbsp;&nbsp;&nbsp;&nbsp;103796 | $&nbsp;&nbsp;&nbsp;&nbsp;115738 |

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Aggregate annual principal payments under our loan agreements, finance obligation, and finance lease obligations for the years subsequent to October 31, 2025 are as follows (in thousands):

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| | |
|:---|:---|
| Year 1 | $14759 |
| Year 2 | 10930 |
| Year 3 | 12237 |
| Year 4 | 11305 |
| Year 5 | 46176 |
| Thereafter <sup>(1)</sup> | 15483 |
|  | $110890 |

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&nbsp;&nbsp;&nbsp;&nbsp;(1) The annual principal payments included above only include sale-leaseback payments whereas the difference between debt outstanding as of October 31, 2025 and the annual principal payments represent accreted interest and amounts included in the finance obligation that exceed required principal payments.

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*2024 EXIM Financing*

On October 31, 2024, the Company closed on a project debt financing transaction (the "2024 EXIM Financing") with the Export-Import Bank of the United States ("EXIM") to support the Company's obligations under the LTSA with GGE, pursuant to which the Company is supplying GGE with forty-two 1.4-megawatt upgraded carbonate fuel cell modules to replace existing units at GGE's Hwaseong Baran Industrial Complex. In conjunction with this financing, the Company entered into a promissory note and related security agreements securing the loan with equipment liens, resulting in gross proceeds of approximately $10.1 million. Interest accrues at a fixed interest rate of 5.81%, and the note is repayable in monthly installments consisting of interest and principal over 7 years from the date of the first debt payment, which was due in January of 2025. After payment of customary fees and transaction costs, net proceeds to the Company were approximately $9.2 million.

The credit agreement between the Company and EXIM with respect to the 2024 EXIM Financing contains certain reporting requirements and other affirmative and negative covenants which are customary for transactions of this type. In addition, under this credit agreement, the Company was required to maintain, throughout the term of this credit agreement, a minimum cash balance of $100.0 million. For the purposes of this credit agreement, cash is defined as the sum of unrestricted cash plus all short-term (but no longer than three months), marketable United States Treasury instruments (as measured based on the maturity amount of each instrument).

Subsequent to October 31, 2025, in connection with the 2025 EXIM Financing (as defined elsewhere herein), an amendment to this credit agreement was executed to reduce the minimum cash balance requirement from $100.0 million to $55.0 million. This minimum cash balance of $55.0 million must be maintained under, and throughout the terms of, both the amended credit agreement with respect to the 2024 EXIM Financing and the credit agreement with respect to the 2025 EXIM Financing. See Note 22. "Subsequent Events" for additional information regarding the 2025 EXIM Financing.

*Derby Back Leverage Financing*

On April 25, 2024, FuelCell Energy Derby Finance Holdco, LLC ("Derby Holdco Borrower"), a wholly owned subsidiary of FuelCell Energy Finance, LLC ("FCEF"), which, in turn, is a wholly owned subsidiary of FuelCell Energy, Inc. ("Parent"), entered into: (i) a Credit Agreement (the "Derby Senior Back Leverage Credit Agreement") with, by and among Liberty Bank, in its capacities as a lender ("Liberty Lender"), administrative agent (the "Senior Administrative Agent"), and lead arranger, and Connecticut Green Bank, in its capacity as a lender ("Green Bank Lender" and, collectively with Liberty Lender, the "Derby Senior Back Leverage Lenders"), for a term loan facility in an amount not to exceed an aggregate of $9.5 million to be provided 68% by Liberty Lender and 32% by Green Bank Lender (such facility, the "Derby Senior Back Leverage Loan Facility," each such term loan, a "Derby Senior Back Leverage Loan" and such term loans together, the "Derby Senior Back Leverage Loans"); and (ii) a Credit Agreement (the "Derby Subordinated Back Leverage Credit Agreement") with Connecticut Green Bank, as administrative agent (the "Subordinated Administrative Agent") and lender ("Derby Subordinated Back Leverage Lender"), for a term loan facility in an amount not to exceed $3.5 million (such facility, the "Derby Subordinated Back Leverage Loan Facility" and such term loan, the "Derby Subordinated Back Leverage Loan"). The Derby Senior Back Leverage Lenders and the Derby Subordinated Back Leverage Lender are referred to collectively as the "Derby Back Leverage Lenders."

Derby Holdco Borrower's obligations under the Derby Senior Back Leverage Credit Agreement and the Derby Subordinated Back Leverage Credit Agreement are secured by a lien on all of Derby Holdco Borrower's assets, consisting principally of its Class B Member Interests (the "Derby Class B Interests") in Derby Fuel Cell Holdco, LLC (the "Derby Tax Equity Holdco"). The Class A Membership Interests (the "Derby Class A Interests") in the Derby Tax Equity Holdco are held by Franklin Park (see Note 1 for further discussion of the tax equity financing transaction structure). Derby Holdco Borrower is also the Managing Member of the Derby Tax Equity Holdco. The Derby Tax Equity Holdco's primary asset is ownership of all of the outstanding equity interests in Derby Station Fuel Cell, LLC and SCEF1 Fuel Cell, LLC (the "Derby Project Companies"). The Derby Project Companies, in turn, are the owners of the fuel cell power plants located in Derby, Connecticut (which are referred to herein as the "Derby Projects"). As additional context concerning the relationship among the parties with respect to the Derby Senior Back Leverage Loan Facility and the Derby Subordinated Back Leverage Loan Facility more fully described below, on October 19, 2018, the Derby Project Companies and Parent entered into an Amended and Restated Power Purchase Agreement (the "Derby Amended and Restated PPA") with The Connecticut Light and Power Company d/b/a Eversource Energy ("CLPC"), pursuant to which the Derby Project Companies agreed to sell to CLPC, and CLPC agreed to purchase from the Derby Project Companies, all of the electricity output produced by the Derby Projects pursuant to the terms and conditions of the Derby Amended and Restated PPA.

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At the closing (the "Derby Closing") of each of the Derby Senior Back Leverage Loan Facility and the Derby Subordinated Back Leverage Loan Facility, which occurred simultaneously on April 25, 2024 (the "Derby Closing Date"), the entire amount of each of the Derby Senior Back Leverage Loan Facility and the Derby Subordinated Back Leverage Loan Facility was drawn down in the aggregate amount of $13.0 million. After payment of fees and transaction costs (including fees to the Derby Back Leverage Lenders and legal costs) of approximately $0.2 million in the aggregate, the remaining proceeds of approximately $12.8 million were used as follows: (i) approximately $0.9 million was used to fund debt service and module replacement reserve accounts ("DSCR Reserve Accounts") for the Derby Senior Back Leverage Lenders in amounts of approximately $0.6 million for Liberty Lender and approximately $0.3 million for Green Bank Lender; (ii) approximately $0.4 million was used to fund a DSCR Reserve Account for the Derby Subordinated Back Leverage Lender; and (iii) the remaining amount of approximately $11.5 million was released to Parent from the Derby Back Leverage Lenders. Additionally, the Company incurred legal fees of approximately $0.2 million in relation to the financing that was not deducted from the debt proceeds.

The Derby Senior Back Leverage Loan will accrue interest on the unpaid principal amount calculated from the date of such Derby Senior Back Leverage Loan until the maturity date at a rate per annum equal to 7.25%. Quarterly principal amortization and interest payments are required to be made by Derby Holdco Borrower on the Derby Senior Back Leverage Loan based on a seven-year amortization period. The Derby Senior Back Leverage Loans have a seven-year term, maturing on March 31, 2031.

The Derby Subordinated Back Leverage Loan will accrue interest on the unpaid principal amount calculated from the date of such Derby Subordinated Back Leverage Loan until the maturity date at a rate per annum equal to 8%. Pursuant to the Derby Subordinated Back Leverage Loan Facility, during the "Derby Interest Only Period" (as defined below), Derby Holdco Borrower is required to make quarterly payments of interest only until June 30, 2031. Following the end of the "Derby Interest Only Period," principal and interest payments are required to be made quarterly in quarterly level payments ("mortgage style") of principal and interest until the maturity date on March 31, 2038.

Each of the Derby Senior Back Leverage Credit Agreement and the Derby Subordinated Back Leverage Credit Agreement contains certain reporting requirements and other affirmative and negative covenants which are customary for transactions of this type. Included in the covenants are covenants that: (i) Derby Holdco Borrower maintain a "Senior" debt service coverage ratio (which is computed taking into account debt service obligations on the Derby Senior Back Leverage Loans) of not less than 1.25:1.00 (based on the trailing 12 months and tested every quarter) and a "Total" debt service coverage ratio (which is computed taking into account debt service obligations on both the Derby Senior Back Leverage Loans and the Derby Subordinated Back Leverage Loan) of not less than 1.10:1.00 (based on the trailing 12 months and tested on a quarterly basis); (ii) Derby Holdco Borrower may make distributions or dividends only if the foregoing debt to equity coverage ratios have been satisfied and Derby Holdco Borrower is not in default under any provisions of either the Derby Senior Back Leverage Credit Agreement or the Derby Subordinated Back Leverage Credit Agreement, including having made all required deposits into reserve accounts; (iii) Derby Holdco Borrower is required to exercise its right under the Derby Tax Equity Holdco limited liability company agreement to acquire the Derby Class A Interests from Franklin Park during the ninety day period beginning on the "Flip Point" (which, pursuant to the Derby Tax Equity Holdco limited liability company agreement, is the date on which the holder of Derby Class A Interests has realized a certain return on investment and, accordingly, Derby Holdco Borrower, as holder of the Derby Class B Interests, has the right to purchase the Derby Class A Interests); and (iv) the consent of the Senior Administrative Agent is required prior to Derby Holdco Borrower's taking certain material actions under the Derby Tax Equity Holdco limited liability company agreement. Each of the Derby Senior Back Leverage Credit Agreement and the Derby Subordinated Back Leverage Credit Agreement also contains customary representations and warranties and customary events of default that cause, or entitle the Derby Back Leverage Lenders to cause, the outstanding loans to become immediately due and payable. In addition to customary events of default for transactions of this kind, the events of default include if a Change of Control occurs (meaning Parent no longer directly or indirectly owns Derby Holdco Borrower), a cross default (meaning that a default under the Derby Senior Back Leverage Loan Facility shall be deemed a default under the Derby Subordinated Back Leverage Loan Facility and vice versa) or if CLPC should become insolvent, is in bankruptcy or commits a specified number of payment defaults with regard to its payment obligations to the Derby Project Companies.

The Derby Senior Back Leverage Loans may be prepaid at any time at the option of Derby Holdco Borrower provided that (i) each prepayment on or prior to the second anniversary of the Derby Closing Date shall require a prepayment fee of 3% of the principal amount being prepaid; (ii) each prepayment after the second anniversary of the Derby Closing Date but on or prior to the fourth anniversary of the Derby Closing Date shall require a prepayment fee of 2% of the principal amount being prepaid; and (iii) each prepayment after the fourth anniversary of the Derby Closing Date but on or prior to

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the seventh anniversary of the Derby Closing Date shall require a prepayment fee of 1% of the principal amount being prepaid. The Derby Subordinated Back Leverage Loan may be prepaid at any time without premium or penalty.

*OpCo Financing Facility*

On May 19, 2023, FuelCell Energy Opco Finance 1, LLC ("OpCo Borrower"), a wholly owned subsidiary of FCEF, which, in turn, is a wholly owned subsidiary of FuelCell Energy, Inc. ("Parent"), entered into a Financing Agreement (as amended, the "Financing Agreement") with, by and among Investec Bank plc in its capacities as a lender ("Investec Lender"), administrative agent ("Administrative Agent"), and collateral agent ("Collateral Agent"); Investec, Inc. as coordinating lead arranger and sole bookrunner; Bank of Montreal (Chicago Branch) in its capacity as a lender ("BMO Lender") and as mandated lead arranger; and each of Liberty Bank, Amalgamated Bank and Connecticut Green Bank as lenders (collectively with Investec Lender and BMO Lender, the "Lenders") for a term loan facility in an amount not to exceed $80.5 million (the "Term Loan Facility" and such term loan, the "Term Loan") and a letter of credit facility in an amount not to exceed $6.5 million (the "LC Facility" and together with the Term Loan Facility, the "OpCo Financing Facility").

OpCo Borrower's obligations under the Financing Agreement are secured by Parent's interest in six operating fuel cell generation projects: (i) the Bridgeport Fuel Cell Project, located in Bridgeport, Connecticut; (ii) the Central CT State University Project, located in New Britain, Connecticut; (iii) the Pfizer Project, located in Groton, Connecticut; (iv) the LIPA Yaphank Project, located in Long Island, New York; (v) the Riverside Regional Water Quality Control Plant Project, located in Riverside, California; and (vi) the Santa Rita Jail Project, located in Alameda County, California (each, a "Project" and collectively, the "Projects").

Immediately prior to the closing on the OpCo Financing Facility, which closing occurred on May 19, 2023, Parent caused to be transferred to OpCo Borrower all of the outstanding equity interests in: (i) Bridgeport Fuel Cell, LLC (the "Bridgeport Project Company"), the entity that owns the Bridgeport Fuel Cell Project; (ii) New Britain Renewable Energy, LLC (the "CCSU Project Company"), the entity that owns the Central CT State University Project; (iii) Groton Fuel Cell 1, LLC (the "Pfizer Project Company"), the entity that owns the Pfizer Project; (iv) Riverside Fuel Cell, LLC (the "Riverside Project Company"), the entity that owns the Riverside Regional Water Quality Control Plant Project; (v) SRJFC, LLC (the "Santa Rita Project Company"), the entity that owns the Santa Rita Jail Project; and (vi) Fuel Cell YT Holdco, LLC (the "Class B Member"), the entity that owns Parent's Class B membership interest in YTBFC Holdco, LLC (the "Yaphank Tax Equity Partnership"), the tax equity partnership with Renewable Energy Investors, LLC (the "Class A Member"), as tax equity investor, which Yaphank Tax Equity Partnership, in turn, owns Yaphank Fuel Cell Park, LLC (the "Yaphank Project Company"), the entity that owns the LIPA Yaphank Project.

At the time of closing on the OpCo Financing Facility: (i) the Bridgeport Fuel Cell Project was encumbered by senior and subordinated indebtedness to Liberty Bank, Fifth Third Bank and Connecticut Green Bank in the aggregate amount of approximately $11.4 million; and (ii) the Pfizer Project, the Riverside Regional Water Quality Control Plant Project and the Santa Rita Jail Project were subject to sale and leaseback transactions and agreements with PNC Energy Capital, LLC ("PNC") in which the lease buyout amounts, including sales taxes, were approximately $15.7 million, $3.7 million and $2.8 million, respectively. In connection with closing on the OpCo Financing Facility, all of the foregoing indebtedness and lease buyout amounts were repaid and extinguished with proceeds of the Term Loan and funds of approximately $7.3 million that were released from restricted and unrestricted reserve accounts held at PNC at the time of closing, resulting in the applicable project companies re-acquiring ownership of the three leased projects from PNC, the termination of the agreements with PNC related to the sale-leaseback transactions, and the termination of the senior and subordinated credit agreements with, the related promissory notes issued to, and the related pledge and security agreements with, Liberty Bank, Fifth Third Bank and Connecticut Green Bank related to the Bridgeport Fuel Cell Project. Further, in connection with the closing on the OpCo Financing Facility and the termination of the senior and subordinated credit agreements with Liberty Bank, Fifth Third Bank and Connecticut Green Bank related to the Bridgeport Fuel Cell Project, Fifth Third Bank and the Bridgeport Project Company agreed that the obligations arising out of the swap transactions contemplated by their related interest rate swap agreement were terminated and waived and the swap agreement was effectively terminated. In addition, in connection with closing on the OpCo Financing Facility, proceeds of the Term Loan were used to repay a portion of Parent's long-term indebtedness to Connecticut Green Bank in the amount of approximately $1.8 million.

At the closing, $80.5 million, the entire amount of the Term Loan portion of the OpCo Financing Facility, was drawn down. After payment of fees and transaction costs (including fees to the Lenders and legal costs) of approximately $2.9 million in the aggregate, the remaining proceeds of approximately $77.6 million were used as follows: (i) approximately

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$15.0 million was used (in addition to the approximately $7.3 million released from restricted and unrestricted reserve accounts held at PNC) to pay the lease buyout amounts and sales taxes referred to above and to re-acquire the three projects owned by PNC as referred to above; (ii) approximately $11.4 million was used to extinguish the indebtedness to Liberty Bank, Fifth Third Bank, and Connecticut Green Bank relating to the Bridgeport Fuel Cell Project; (iii) approximately $1.8 million was used to repay a portion of Parent's long-term indebtedness to Connecticut Green Bank; (iv) $14.5 million was used to fund a capital expenditure reserve account required to be maintained pursuant to the terms and conditions of the Financing Agreement (which is classified as restricted cash on the Company's Consolidated Balance Sheets); and (v) approximately $34.9 million was distributed to Parent for use as Parent determines in its sole discretion. In addition, in connection with the extinguishment of the Company's indebtedness to Liberty Bank and Fifth Third Bank referred to above, approximately $11.2 million of restricted cash was released to the Company from Liberty Bank and Fifth Third Bank. Taking into consideration the release of such funds, the total net proceeds to the Company from these transactions were approximately $46.1 million.

The Term Loan portion of the OpCo Financing Facility will accrue interest on the unpaid principal amount calculated from the date of such Term Loan until the maturity date thereof at a rate per annum during each Interest Period (as defined in the Financing Agreement) for such Term Loan equal to (A) with respect to SOFR Rate Loans, (i) the Adjusted Daily Compounded SOFR for such Interest Period with respect to SOFR Rate Loans *plus* (ii) the Applicable Margin, and (B) with respect to Base Rate Loans, (i) the Base Rate from time to time in effect *plus* (ii) the Applicable Margin (in each case as defined in the Financing Agreement). The Applicable Margin for SOFR Rate Loans is 2.5% for the first four years of the term and thereafter, 3%. The Applicable Margin for Base Rate Loans is 1.5% for the first four years of the term and thereafter, 2%. At the closing, in connection with the draw down of the entire amount of the Term Loan, OpCo Borrower elected to make such draw down a SOFR Rate Loan with an initial Interest Period of three months. After the initial Interest Period of three months, OpCo Borrower may elect both the applicable Interest Period (i.e., one month, three months or six months) and whether the Term Loan will be treated as a SOFR Rate Loan or a Base Rate Loan for such Interest Period. Interest payments are required to be made quarterly.

Quarterly principal amortization obligations are also required to be made (based on 17-year principal amortization designed to be fully repaid in 2039), with quarterly amortization payments based on a 1.30x debt service coverage ratio sizing based on contracted cash flows (before giving effect to module replacement expenses and module replacement drawdown releases). The Term Loan has a seven-year term, maturing on May 19, 2030.

Pursuant to the terms and conditions of the Financing Agreement, OpCo Borrower is required to maintain a capital expenditures reserve to pay for expected module replacements. The total reserve balance is required to reach $29.0 million, $14.5 million of which was funded out of the closing advance of the Term Loan and the remainder of which is to be funded pursuant to an agreed upon funding schedule through cash flows generated by the Projects set forth in the Financing Agreement for the period of June 30, 2023 through December 31, 2029.

Pursuant to the terms and conditions of the Financing Agreement, OpCo Borrower is required to maintain a debt service reserve of not less than six months of the scheduled principal and interest payments. The letter of credit component of the OpCo Financing Facility is for the purpose of obtaining letters of credit to satisfy such obligation; at the closing, an Irrevocable Letter of Credit was issued by Investec Bank plc as the issuing bank in favor of the Collateral Agent for the benefit of the Lenders in the amount of $6.5 million to satisfy the debt service reserve funding obligation.

Pursuant to the Financing Agreement, within 30 days of the financial close of the Financing Agreement, OpCo Borrower was required to enter into one or more hedge transactions, with a Lender or an affiliate thereof pursuant to one or more interest rate agreements, to hedge OpCo Borrower's interest rate exposure relating to the Term Loan from floating to fixed. Such hedge transactions are required to be in effect at all times during the entire amortization period and have an aggregate notional amount subject to the hedge transactions at any time equal to at least 75% and no more than 105% of the aggregate principal balance of the Term Loan outstanding (taking into account scheduled amortization of the Term Loan).

Upon closing, on May 19, 2023, OpCo Borrower entered into an ISDA 2002 Master Agreement and an ISDA Schedule to the 2002 Master Agreement with Investec Bank plc as a hedge provider, and an ISDA 2002 Master Agreement and an ISDA Schedule to the 2002 Master Agreement with Bank of Montreal (Chicago Branch) as a hedge provider. On May 22, 2023, OpCo Borrower executed the related trade confirmations for these interest rate swap agreements with these hedge providers to protect against adverse price movements in the floating SOFR rate associated with 100% of the aggregate principal balance of the Term Loan outstanding. Pursuant to the terms of such agreements, OpCo Borrower will pay a fixed rate of interest of 3.716%. The net interest rate across the Financing Agreement and the swap transaction is 6.366%

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in the first four years and 6.866% thereafter. The obligations of OpCo Borrower to the hedge providers under the interest rate swap agreements are treated as obligations under the Financing Agreement and, accordingly, are secured, on a pari passu basis, by the same collateral securing the obligations of OpCo Borrower under the Financing Agreement, which collateral is described below. The Company has not elected hedge accounting treatment and, as a result, the derivative will be remeasured to fair value quarterly, with the resulting gains/losses recorded to other income/expense. The fair value adjustments for the years ended October 31, 2025, 2024 and 2023 resulted in a loss of $0.7 million, a loss of $3.1 million, and a gain of $3.3 million, respectively.

The Financing Agreement contains certain reporting requirements and other affirmative and negative covenants which are customary for transactions of this type. Included in the covenants are covenants that: (i) the Yaphank Project Company obtain ongoing three year extensions of its current gas agreement; (ii) any annual operating expense budget that exceeds 115% of the Base Case Model (as defined in the Financing Agreement) for that year be approved by the Required Lenders (i.e., Lenders constituting more than 50% of the amounts loaned); (iii) OpCo Borrower maintain a debt service coverage ratio of not less than 1.20:1.00 (based on the trailing 12 months and tested every six months); and (iv) the Class B Member is required to exercise its option to purchase the Class A Member's interest in the Yaphank Tax Equity Partnership during the six month period following the "Flip Point" as set forth in the limited liability company agreement for the Yaphank Tax Equity Partnership. The Financing Agreement also contains customary representations and warranties and customary events of default that cause, or entitle the Lenders to cause, the outstanding loans under the Financing Agreement to become immediately due and payable.

The Term Loan may be prepaid at any time at the option of OpCo Borrower without premium or penalty other than any "liquidation costs" if such prepayment occurs other than at the end of an Interest Period. In addition, there are certain mandatory repayments required under the Financing Agreement, including in connection with any sale or disposition of all of the Projects or of any of the LIPA Yaphank Project, the Bridgeport Fuel Cell Project or the Pfizer Project. If the Company disposes of any of the Riverside Regional Water Quality Control Plant Project, the Santa Rita Jail Project or the Central CT State University Project, OpCo Borrower is required to prepay an amount of the Term Loan based on the then stipulated value of the disposed Project.

Simultaneously with OpCo Borrower entering into the Financing Agreement, FCEF (as pledgor), OpCo Borrower and each of the Bridgeport Project Company, the Pfizer Project Company, the Riverside Project Company, the Santa Rita Project Company, the CCSU Project Company and the Class B Member, each as a subsidiary grantor party and guarantor, entered into an Omnibus Guarantee, Pledge and Security Agreement (the "Security Agreement") with Investec Bank plc as Collateral Agent, pursuant to which, as collateral for the Term Loan Facility, the LC Facility and the hedge agreements (i) FCEF granted to Collateral Agent a security interest in all of FCEF's equity interest in OpCo Borrower; (ii) OpCo Borrower granted to Collateral Agent a security interest in all of OpCo Borrower's assets consisting of its equity interests in the Bridgeport Project Company, the Pfizer Project Company, the Riverside Project Company, the Santa Rita Project Company, the CCSU Project Company and the Class B Member; (iii) each of the Bridgeport Project Company, the Pfizer Project Company, the Riverside Project Company, the Santa Rita Project Company and the CCSU Project Company granted to Collateral Agent a security interest in all of each such entity's assets consisting principally of the respective generation facilities and project agreements; and (iv) the Class B Member granted to Collateral Agent a security interest in all of such Class B Member's assets, consisting principally of its equity interest in the Yaphank Tax Equity Partnership. Pursuant to the Security Agreement, each of the subsidiary grantor parties jointly and severally guaranteed payment of all of the obligations secured by the Security Agreement.

Simultaneously with the execution of the Financing Agreement, OpCo Borrower, Investec Bank plc as Collateral Agent and Administrative Agent and Liberty Bank as Depositary Agent entered into a Depositary Agreement (the "Depositary Agreement") pursuant to which OpCo Borrower established certain accounts at Liberty Bank, all of which were pledged to Collateral Agent as security for the Term Loan Facility, the LC Facility and the hedge agreements, including a Revenue Account; a Debt Service Reserve Account; a Redemption Account (for prepayments); a Capital Expenditure Reserve Account; and a Distribution Reserve Account (in each case as defined in the Depositary Agreement). Pursuant to the terms of the Financing Agreement and the Depositary Agreement, OpCo Borrower may make quarterly distributions to FCEF and Parent provided that: (i) no Event of Default or Default (in each case as defined in the Financing Agreement) exists under the OpCo Financing Facility; (ii) all reserve accounts have been funded; (iii) no letter of credit loans or unpaid drawings are outstanding with regard to any drawn down letter of credit under the LC Facility; (iv) OpCo Borrower has maintained a greater than 1.20:1.00 debt service coverage ratio for the immediate 12 month period; and (v) no Cash Diversion Event (i.e., certain events that would adversely impact distributions to the Class B Member in connection with the LIPA Yaphank Project, as further defined in the Financing Agreement) has occurred. Beginning with the quarter ending

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June 2025 and continuing until the quarter ending March 2026, prior to making contributions to the Debt Service Reserve Account or the Capital Expenditure Reserve Account or having funds available for distribution, out of operating cash flow, OpCo Borrower is required to make a quarterly payment to the Administrative Agent (on behalf of the Lenders) in the amount of $675,000 per quarter to be applied to outstanding principal.

*Groton Back Leverage Financing*

On August 18, 2023, FuelCell Energy Finance Holdco, LLC ("Groton Holdco Borrower"), a wholly owned subsidiary of FCEF, which, in turn, is a wholly owned subsidiary of Parent, entered into: (i) a Credit Agreement (the "Groton Senior Back Leverage Credit Agreement") with, by and among Liberty Bank, in its capacities as a lender ("Liberty Lender"), administrative agent (the "Senior Administrative Agent"), and lead arranger, and Amalgamated Bank, in its capacity as a lender ("Amalgamated Lender" and, collectively with Liberty Lender, the "Groton Senior Back Leverage Lenders"), for a term loan facility in an amount not to exceed an aggregate of $12.0 million to be provided 50% by Liberty Lender and 50% by Amalgamated Lender (such facility, the "Groton Senior Back Leverage Loan Facility," each such term loan, a "Groton Senior Back Leverage Loan" and such term loans together, the "Groton Senior Back Leverage Loans"); and (ii) a Credit Agreement (the "Groton Subordinated Back Leverage Credit Agreement") with Connecticut Green Bank, as administrative agent (the "Subordinated Administrative Agent") and lender ("Groton Subordinated Back Leverage Lender"), for a term loan facility in an amount not to exceed $8.0 million (such facility, the "Groton Subordinated Back Leverage Loan Facility" and such term loan, the "Groton Subordinated Back Leverage Loan"). The Groton Senior Back Leverage Lenders and the Groton Subordinated Back Leverage Lender are referred to collectively as the "Groton Back Leverage Lenders."

Groton Holdco Borrower's obligations under the Groton Senior Back Leverage Credit Agreement and the Groton Subordinated Back Leverage Credit Agreement are secured by a lien on all of Groton Holdco Borrower's assets, consisting principally of its Class B Member Interests (the "Class B Interests") in Groton Station Fuel Cell Holdco, LLC (the "Groton Tax Equity Holdco"). Class A Membership Interests (the "Class A Interests") in the Groton Tax Equity Holdco are held by East West Bank. Groton Holdco Borrower is also the Managing Member of the Groton Tax Equity Holdco. The Groton Tax Equity Holdco's primary asset is ownership of all of the outstanding equity interests in Groton Station Fuel Cell, LLC (the "Groton Project Company"). The Groton Project Company, in turn, is the owner of the fuel cell power plant at the U.S. Navy Submarine Base New London located in Groton, Connecticut (the "Groton Project"). As additional context concerning the relationship among the parties with respect to the Groton Senior Back Leverage Loan Facility and the Groton Subordinated Back Leverage Loan Facility more fully described below, on December 16, 2022, the Groton Project Company and Parent entered into an Amended and Restated Power Purchase Agreement (the "Groton Amended and Restated PPA") with Connecticut Municipal Electric Energy Cooperative ("CMEEC"), pursuant to which the Groton Project Company agreed to sell to CMEEC, and CMEEC agreed to purchase from the Groton Project Company, all of the electricity output produced by the Groton Project pursuant to the terms and conditions of the Groton Amended and Restated PPA.

At the closing (the "Groton Closing") of each of the Groton Senior Back Leverage Loan Facility and the Groton Subordinated Back Leverage Loan Facility, which occurred simultaneously on August 18, 2023 (the "Groton Closing Date"), the entire amount of each of the Groton Senior Back Leverage Loan Facility and the Groton Subordinated Back Leverage Loan Facility was drawn down in the aggregate amount of $20.0 million. After payment of fees and transaction costs (including fees to the Groton Back Leverage Lenders and legal costs) of approximately $0.4 million in the aggregate, the remaining proceeds of approximately $19.6 million were used as follows: (i) approximately $1.7 million was used to fund debt service reserve accounts ("DSCR Reserve Accounts") for the Groton Senior Back Leverage Lenders in equal amounts of approximately $0.83 million for Liberty Lender and approximately $0.83 million for Amalgamated Lender; (ii) approximately $6.5 million was used to fund operations and maintenance and module replacement reserve accounts for the Groton Senior Back Leverage Lenders in equal amounts of approximately $3.25 million for Liberty Lender and approximately $3.25 million for Amalgamated Lender; (iii) approximately $0.3 million was used to fund a DSCR Reserve Account for the Groton Subordinated Back Leverage Lender; and (iv) the remaining amount of approximately $11.1 million was released to Parent from the Groton Back Leverage Lenders. As discussed in additional detail below, simultaneous with the Groton Closing, a portion of the proceeds were used to: (a) make Output Shortfall Payments (which are cash payments required to be made by the Groton Project Company in the event that the Groton Project produces electricity in any year less than the minimum required amount for such year) totaling approximately $1.3 million, which were deposited into a payment reserve account, and (b) pay approximately $3.0 million to Connecticut Green Bank, which represented payment, in full, of all outstanding obligations under Parent's loan agreement with Connecticut Green Bank.

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After taking into account such Output Shortfall Payments and such payment to Connecticut Green Bank, approximately $6.8 million was classified as unrestricted cash on the Company's Consolidated Balance Sheet.

The portion of the Groton Senior Back Leverage Loan provided by Liberty Lender will accrue interest on the unpaid principal amount calculated from the date of such Groton Senior Back Leverage Loan until the maturity date at a rate per annum equal to 6.75%. The portion of the Groton Senior Back Leverage Loan provided by Amalgamated Lender will accrue interest on the unpaid principal amount calculated from the date of such Groton Senior Back Leverage Loan until the maturity date thereof at 6.07% during all times at which a "Carbon Offset Event" is not continuing and 7.32% at all times at which a "Carbon Offset Event" has occurred and is continuing. A "Carbon Offset Event" is deemed to occur if Groton Holdco Borrower, Parent or any direct or indirect subsidiary thereof does not purchase carbon offsets from an Acceptable Carbon Offset Provider (as defined below) each fiscal year in an amount equal to the lesser of (i) the Annual Carbon Offset Requirement for such fiscal year, which is derived based on a formula equal to the outstanding balance of the Groton Senior Back Leverage Loan provided by Amalgamated Lender multiplied by the Groton Project's annual carbon emissions for such year and divided by the total project costs of the Groton Project, and (ii) the Annual Carbon Offset Cap for such fiscal year, which is $12.66 multiplied by the Annual Carbon Offset Requirement and divided by the Carbon Offset Price for such fiscal year. The "Carbon Offset Price" means the price, per metric ton of carbon dioxide, of the carbon offsets available for purchase from an Acceptable Carbon Offset Provider. An "Acceptable Carbon Offset Provider" is either Climate Vault or any other seller of carbon offsets acceptable to Amalgamated Lender.

Quarterly principal amortization and interest payments are required to be made by Groton Holdco Borrower on the Groton Senior Back Leverage Loans based on a ten-year amortization period. The Groton Senior Back Leverage Loans have a seven-year term, maturing on August 18, 2030, at which time all outstanding principal is due.

The Groton Subordinated Back Leverage Loan will accrue interest at a rate per annum equal to 8% for the period of time prior to the "Step Down Date" and, after the "Step Down Date," at the lesser of 8% or the interest rate on a 10 year U.S. Treasury Note plus 275 basis points (subject to a minimum floor of 5% per annum). The "Step Down Date" is the date on which both of the following events have occurred: Groton Holdco Borrower has purchased East West Bank's Class A Interests in the Groton Tax Equity Holdco and the Groton Senior Back Leverage Loans have been repaid in full. Interest is payable each quarter based on an agreed upon schedule.

Pursuant to the Groton Subordinated Back Leverage Loan Facility, during the "Groton Interest Only Period" (as defined below), Groton Holdco Borrower is required to make quarterly payments of principal in amounts equal to 50% of excess cash flow available to Groton Holdco Borrower. For purposes of the foregoing, excess cash flow is all excess cash flow of Groton Holdco Borrower after the payment of required principal and interest on the Groton Senior Back Leverage Loans, required deposits in the various reserve accounts, the payment of interest on the Groton Subordinated Back Leverage Loan and payment of Groton Holdco Borrower's operating expenses. Following the end of the "Groton Interest Only Period," principal and interest payments are required to be made quarterly in quarterly level payments ("mortgage style") of principal and interest until the maturity date, which is the first to occur of 20 years following the Groton Project's commercial operations date and termination of the Groton Amended and Restated PPA. The maturity date of the Groton Subordinated Back Leverage Loan Facility is currently contemplated to be September 30, 2038. The "Groton Interest Only Period" is the period beginning on the Groton Closing Date and ending the first to occur of (i) eighty-four months after the Groton Closing Date; or (ii) the date the Groton Senior Back Leverage Loan Facility has been fully repaid.

Each of the Groton Senior Back Leverage Credit Agreement and the Groton Subordinated Back Leverage Credit Agreement contains certain reporting requirements and other affirmative and negative covenants which are customary for transactions of this type. Included in the covenants are covenants that: (i) Groton Holdco Borrower maintain a "Senior" debt service coverage ratio (which is computed taking into account debt service obligations on the Groton Senior Back Leverage Loans) of not less than 1.20:1.00 (based on the trailing 12 months and tested every quarter) and a "Total" debt service coverage ratio (which is computed taking into account debt service obligations on both the Groton Senior Back Leverage Loans and the Groton Subordinated Back Leverage Loan) of not less than 1.10:1.00 (based on the trailing 12 months and tested on a quarterly basis); (ii) Groton Holdco Borrower may make distributions or dividends only if the foregoing debt to equity coverage ratios have been satisfied and Groton Holdco Borrower is not in default under any provisions of either the Groton Senior Back Leverage Credit Agreement or the Groton Subordinated Back Leverage Credit Agreement, including having made all required deposits into reserve accounts; (iii) Groton Holdco Borrower is required to exercise its right under the Groton Tax Equity Holdco limited liability company agreement to acquire the Class A Interests from East West Bank during the ninety day period beginning on the "Flip Point" (which, pursuant to the Groton Tax Equity Holdco limited liability company agreement, is the date on which the holder of Class A Interests has realized

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a certain return on investment and, accordingly, Groton Holdco Borrower, as holder of the Class B Interests, has the right to purchase the Class A Interests); and (iv) the consent of the Senior Administrative Agent is required prior to Groton Holdco Borrower's taking certain material actions under the Groton Tax Equity Holdco limited liability company agreement. Each of the Groton Senior Back Leverage Credit Agreement and the Groton Subordinated Back Leverage Credit Agreement also contains customary representations and warranties and customary events of default that cause, or entitle the Groton Back Leverage Lenders to cause, the outstanding loans to become immediately due and payable. In addition to customary events of default for transactions of this kind, the events of default include if a Change of Control occurs (meaning Parent no longer directly or indirectly owns Groton Holdco Borrower), a cross default (meaning that a default under the Groton Senior Back Leverage Loan Facility shall be deemed a default under the Groton Subordinated Back Leverage Loan Facility and vice versa) or if CMEEC should become insolvent, is in bankruptcy or commits a specified number of payment defaults with regard to its payment obligations to the Groton Project Company.

The Groton Senior Back Leverage Loans may be prepaid at any time at the option of Groton Holdco Borrower provided that (i) each prepayment on or prior to the second anniversary of the Groton Closing Date shall require a prepayment fee of 3% of the principal amount being prepaid; (ii) each prepayment after the second anniversary of the Groton Closing Date but on or prior to the fourth anniversary of the Groton Closing Date shall require a prepayment fee of 2% of the principal amount being prepaid; and (iii) each prepayment after the fourth anniversary of the Groton Closing Date but on or prior to the seventh anniversary of the Groton Closing Date shall require a prepayment fee of 1% of the principal amount being prepaid. The Groton Subordinated Back Leverage Loan may be prepaid at any time without premium or penalty.

*Finance obligations for sale-leaseback agreements*

Several of the Company's project subsidiaries previously entered into sale-leaseback agreements with PNC and Crestmark for commissioned projects where the Company had entered into a PPA with the site host/end-user of produced power. The Company did not recognize as revenue any of the proceeds received from the lessor that contractually constitute payments to acquire the assets subject to these arrangements. Instead, the sale proceeds received were accounted for as finance obligations. The outstanding finance obligation balance as of both October 31, 2025 and 2024 was $18.8 million. The outstanding finance obligation for the remaining leases as of October 31, 2025 includes $12.0 million in excess of future required payments which represents imputed interest, not including amounts for the potential repurchase price of the project assets which is based on fair value. The sale-leaseback arrangements with Crestmark include a purchase right for the greater of fair market value or 31% of the purchase price.

*State of Connecticut Loan*

In November 2015, the Company closed on a definitive Assistance Agreement with the State of Connecticut (the "Assistance Agreement") and received a disbursement of $10.0 million, which was used for the first phase of the expansion of the Company's Torrington, Connecticut manufacturing facility. In conjunction with this financing, the Company entered into a $10.0 million promissory note and related security agreements securing the loan with equipment liens and a mortgage on its Danbury, Connecticut location. Interest accrues at a fixed interest rate of 2.0%, and the loan is repayable in monthly installments over 15 years from the date of the first advance, which occurred in November of 2015. Principal payments were deferred for four years from disbursement and began on December 1, 2019. Under the Assistance Agreement, the Company was eligible for up to $5.0 million in loan forgiveness if the Company created 165 full-time positions and retained 538 full-time positions for two consecutive years (as amended from time to time, the "Employment Obligation") as measured on October 28, 2017 (as amended from time to time, the "Target Date"). The Assistance Agreement was subsequently amended in April 2017 to extend the Target Date by two years to October 28, 2019.

In January 2019, the Company and the State of Connecticut entered into a Second Amendment to the Assistance Agreement (the "Second Amendment"). The Second Amendment extended the Target Date to October 31, 2022 and amended the Employment Obligation to require the Company to continuously maintain a minimum of 538 full-time positions for 24 consecutive months. If the Company met the Employment Obligation, as modified by the Second Amendment, and created an additional 91 full-time positions, the Company would have received a credit in the amount of $2.0 million to be applied against the outstanding balance of the loan. The Second Amendment deleted and canceled the provisions of the Assistance Agreement related to the second phase of the expansion project and the loans related thereto, but the Company had not drawn any funds or received any disbursements under those provisions.

In April 2023, the Company signed a Third Amendment to the Assistance Agreement (the "Third Amendment"). The Third Amendment was approved by the State of Connecticut Office of Attorney General on May 18, 2023, and the State

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of Connecticut Office of Attorney General released, and the Company received, the countersigned Third Amendment on May 24, 2023, at which time the Third Amendment became effective. The Third Amendment further extended the Target Date to October 31, 2024 and amended the Employment Obligation to require the Company to retain 538 full-time positions in Connecticut on or before October 31, 2024 and to maintain such positions for 24 consecutive months. The 24 consecutive month period ending on or before the Target Date (as extended by the Third Amendment) that yielded the highest annual average positions was to be used to determine compliance with the amended Employment Obligation, provided that no portion of such 24 consecutive months could begin before the date of the Third Amendment. The Third Amendment also requires the Company to furnish a job audit (the "Job Audit") to the Commissioner of Economic and Community Development (the "Commissioner") no later than 90 days following the 24-month period described above.

If, as a result of the Job Audit, the Commissioner determines that the Company has failed to meet the Employment Obligation (as amended by the Third Amendment), the Company will be required to immediately repay a penalty of $14,225.00 per each full-time employment position below the amended Employment Obligation. The amount repaid will be applied first to any outstanding fees, penalties or interest due, and then against the outstanding balance of the loan. Based on the Company's headcount as of October 31, 2024, it did not meet the amended Employment Obligation which subjects the Company to make repayment under these terms.

If, as a result of the Job Audit, the Commissioner were to determine that the Company had met the amended Employment Obligation and had created an additional 91 full-time employment positions, for a total of 629 full-time employees, the Company would be eligible to receive a credit in the amount of $2.0 million, which would be applied against the then-outstanding principal balance of the loan. Upon application of such credit, the Commissioner would recalculate the monthly payments of principal and interest such that such monthly payments would amortize the then remaining principal balance over the remaining term of loan. However, based on the Company's headcount as of October 31, 2024, it did not meet the amended Employment Obligation and will not receive this credit.

A Job Audit was to be performed within 90 days of the Target Date of October 31, 2024. Because the Company did not meet the amended Employment Obligation, an accelerated payment penalty may be assessed in an amount equal to $14,225.00 multiplied by the number of full-time employment positions below the number of positions required by the amended Employment Obligation. Such penalty will be immediately payable upon the determination by the Commissioner that the Company has failed to meet the amended Employment Obligation and will be applied first to accelerate the payment of any outstanding fees, penalties or interest due and then to accelerate the payment of the outstanding principal balance of the loan. The Company estimates that it had an average of 389 employees over the applicable 24 consecutive month period. As a result, the Company has calculated a $2.1 million repayment obligation in connection with the loan, which has been reclassified to current and represents the expected accelerated payment penalty amount. As of October 31, 2025, the Company had not been formally assessed a penalty, but since there are no fees, penalties or interest due, any accelerated payment penalty assessed will be applied to the outstanding principal balance of the loan and will not result in any charges to the Statement of Operations. During fiscal year 2025, the Company had discussions with the State of Connecticut regarding a potential amendment to the terms of the Third Amendment to the Assistance Agreement but as of October 31, 2025 no agreement had been reached. Until this point, the State of Connecticut has not requested repayment of the obligation amount and the Company continues to make regular principal and interest payments. There can be no assurance that an amendment agreement will be reached with the State of Connecticut or that the terms of any such amendment would include more favorable repayment terms than those to which the Company is subject under the Third Amendment as a result of the failure to meet the Employment Obligation.

In April of 2020, as a result of the COVID-19 pandemic, the State of Connecticut agreed to defer three months of principal and interest payments under the Assistance Agreement, beginning with the May 2020 payment. These deferred payments will be added at the end of the loan, thus extending out the maturity date by three months.

*Deferred Finance Costs*

As of October 31, 2025, deferred finance costs related primarily to sale-leaseback transactions entered into with Crestmark, which are being amortized over the 10-year terms of the lease agreements, and payments under the 2024 EXIM Financing, the Derby Back Leverage Financing, the OpCo Financing Facility, the Groton Senior Back Leverage Loan Facility, and the Groton Subordinated Back Leverage Loan Facility, which are being amortized using the effective interest rate method. Any deferred finance costs remaining during fiscal year 2023 which related to the debt payoffs mentioned under the heading "OpCo Financing Facility" above were written off as a loss on extinguishment of finance obligations and debt.

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#### Note 13. Stockholders' Equity

#### Increase in Authorized Shares
The Company obtained stockholder approval on October 10, 2023 at a Special Meeting of Stockholders to increase the number of shares of common stock the Company is authorized to issue under the Company's Certificate of Incorporation, as amended. The Company's stockholders approved a 500.0 million increase in the number of authorized shares of common stock. Accordingly, on October 11, 2023, the Company filed a Certificate of Amendment of the Certificate of Incorporation of the Company with the Delaware Secretary of State increasing the total number of authorized shares of common stock from 500.0 million to 1.0 billion shares.

#### 2022 Open Market Sale Agreement and Amendments
On July 12, 2022, the Company entered into an Open Market Sale Agreement (the "2022 Sales Agreement") with Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canaccord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and Loop Capital Markets LLC (each, an "Agent" and together, the "Agents") with respect to an at the market offering program under which the Company could, from time to time, offer and sell up to 3.2 million shares of the Company's common stock. Pursuant to the 2022 Sales Agreement, the Company was required to pay and did pay each Agent a commission equal to 2.0% of the gross proceeds from each sale of shares made by such Agent under the 2022 Sales Agreement.

On April 10, 2024, the Company and the Agents entered into Amendment No. 1 to the 2022 Sales Agreement (the 2022 Sales Agreement as amended, the "Sales Agreement"), with respect to an at the market offering program under which the Company may, from time to time, offer and sell shares of the Company's common stock having an aggregate offering price of up to $300.0 million (exclusive of any amounts previously sold under the 2022 Sales Agreement prior to its amendment). On December 27, 2024, the Company entered into Amendment No. 2 to the Sales Agreement, which removed certain representations and warranties relating to the Company's status as a well-known seasoned issuer. Pursuant to the Sales Agreement, the Company is required to pay and has paid each Agent a commission equal to 2.0% of the gross proceeds from each sale of shares made by such Agent under the Sales Agreement.

During the year ended October 31, 2025, approximately 25.6 million shares of the Company's common stock were sold under the Sales Agreement at an average sale price of $7.44 per share, resulting in gross proceeds of approximately $190.4 million before deducting sales commissions and fees, and net proceeds to the Company of approximately $185.7 million after deducting sales commissions totaling approximately $3.8 million and fees totaling approximately $0.9 million.

During the year ended October 31, 2024, approximately 5.3 million shares of the Company's common stock were sold under the Sales Agreement at an average sale price of $17.93 per share, resulting in gross proceeds of approximately $95.1 million before deducting sales commissions and fees, and net proceeds to the Company of approximately $92.6 million after deducting sales commissions totaling approximately $1.9 million and fees totaling approximately $0.6 million.

During the year ended October 31, 2023, approximately 1.5 million shares were sold under the 2022 Sales Agreement at an average sale price of $67.49 per share, resulting in gross proceeds of approximately $99.7 million before deducting sales commissions and fees, and net proceeds to the Company of approximately $97.4 million after deducting sales commissions and fees totaling approximately $2.3 million.

#### As of October 31, 2025, approximately $14.5 million of shares remained available for sale under the Sales Agreement.
See Note 22. "Subsequent Events" for information regarding sales made subsequent to October 31, 2025 under the Sales Agreement.

#### Note 14. Redeemable Preferred Stock
The Company is authorized to issue up to 250,000 shares of preferred stock, par value $0.01 per share, in one or more series, of which 105,875 shares were designated as 5% Series B Cumulative Convertible Perpetual Preferred Stock (referred to herein as Series B Preferred Stock) with a liquidation preference of $1,000.00 per share, in March 2005.

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#### Redeemable Series B Preferred Stock
As of October 31, 2025 and 2024, there were 64,020 shares of Series B Preferred Stock issued and outstanding, with a carrying value of $59.9 million. The following is a summary of certain terms of the Series B Preferred Stock.

**Ranking.** Shares of the Company's Series B Preferred Stock rank with respect to dividend rights and rights upon the Company's liquidation, winding up or dissolution:

● senior to shares of the Company's common stock;

● junior to the Company's debt obligations; and

● effectively junior to the Company's subsidiaries' (i) existing and future liabilities and (ii) capital stock held by others.

**Dividends.** The Series B Preferred Stock pays cumulative annual dividends of $50.00 per share, which are payable quarterly in arrears on February 15, May 15, August 15, and November 15. Dividends accumulate and are cumulative from the date of original issuance. Unpaid accumulated dividends do not bear interest.

The dividend rate is subject to upward adjustment as set forth in the Amended Certificate of Designation for the Series B Preferred Stock (the "Series B Certificate of Designation") if the Company fails to pay, or to set apart funds to pay, any quarterly dividend on the Series B Preferred Stock.

No dividends or other distributions may be paid or set apart for payment on the Company's common stock (other than a dividend payable solely in shares of a like or junior ranking), nor may any stock junior to or on parity with the Series B Preferred Stock be redeemed, purchased or otherwise acquired for any consideration (or any money paid to or made available for a sinking fund for such stock) by the Company or on its behalf (except by conversion into or exchange for shares of a like or junior ranking), unless all accumulated and unpaid dividends on the Series B Preferred Stock have been paid or funds or shares of common stock have been set aside for payment of such accumulated and unpaid dividends.

The dividends on the Series B Preferred Stock will be paid in cash, unless a registered holder elects (pursuant to the procedures set forth in the Series B Certificate of Designation) to receive such dividends in shares of the Company's common stock. Any such shares of common stock paid in lieu of cash dividends will be treated as restricted securities and will not be transferable by the recipient thereof except pursuant to an effective registration statement or pursuant to an exemption from the registration requirements of the Securities Act of 1933, as amended (the "Securities Act"). Dividends of $3.2 million were paid in cash during each of the fiscal years ended October 31, 2025 and 2024. Cumulative declared and unpaid dividends as of each of October 31, 2025 and October 31, 2024 were $0.8 million.

**Liquidation.** The holders of Series B Preferred Stock are entitled to receive, in the event that the Company is liquidated, dissolved or wound up, whether voluntarily or involuntarily, $1,000.00 per share plus all accumulated and unpaid dividends up to but excluding the date of such liquidation, dissolution, or winding up (the "Liquidation Preference"). Until the holders of Series B Preferred Stock receive the Liquidation Preference with respect to their shares of Series B Preferred Stock in full, no payment will be made on any junior shares, including shares of the Company's common stock. After the Liquidation Preference is paid in full, holders of the Series B Preferred Stock will not be entitled to receive any further distribution of the Company's assets. (For the avoidance of doubt, neither the voluntary sale of all or substantially all of the Company's assets, nor a merger involving the Company, shall be deemed to be a voluntary or involuntary liquidation, dissolution or winding up of the Company.) As of October 31, 2025 and 2024, the issued and outstanding shares of Series B Preferred Stock had an aggregate Liquidation Preference of $64.0 million.

**Conversion Rights**. Each share of Series B Preferred Stock may be converted at any time, at the option of the holder, into 0.0197 shares of the Company's common stock (which is equivalent to a conversion price of $50,760.00 per share) plus cash in lieu of fractional shares. The conversion rate is subject to adjustment upon the occurrence of certain events, as described in the Series B Certificate of Designation. The conversion rate is not adjusted for accumulated and unpaid dividends. If converted, holders of Series B Preferred Stock do not receive a cash payment for all accumulated and unpaid dividends; rather, all accumulated and unpaid dividends are canceled.

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The Company may, at its option, cause shares of Series B Preferred Stock to be automatically converted into that number of shares of its common stock that are issuable at the then-prevailing conversion rate. The Company may exercise its conversion right only if the closing price of its common stock exceeds 150% of the then-prevailing conversion price ($50,760.00 per share as of October 31, 2025) for 20 trading days during any consecutive 30 trading day period, as described in the Series B Certificate of Designation.

If the holders of Series B Preferred Stock elect to convert their shares in connection with certain "fundamental changes" (as defined in the Series B Certificate of Designation and described below), the Company will in certain circumstances increase the conversion rate by a number of additional shares of common stock upon conversion or, in lieu thereof, the Company may in certain circumstances elect to adjust the conversion rate and related conversion obligation so that shares of Series B Preferred Stock are converted into shares of the acquiring or surviving company, in each case as described in the Series B Certificate of Designation.

The adjustment of the conversion price is to prevent dilution of the interests of the holders of the Series B Preferred Stock from certain dilutive transactions with holders of the Company's common stock.

**Redemption.** The Company does not have the option to redeem the Series B Preferred Stock. However, holders of the Series B Preferred Stock can require the Company to redeem all or a portion of their shares of Series B Preferred Stock at a redemption price equal to the Liquidation Preference of the shares to be redeemed in the case of a "fundamental change" (as further described in the Series B Certificate of Designation). A fundamental change will be deemed to have occurred if any of the following occurs:

● any "person" or "group" is or becomes the beneficial owner, directly or indirectly, of 50% or more of the total voting power of all classes of the Company's capital stock then outstanding and normally entitled to vote in the election of directors;

● during any period of two consecutive years, individuals who at the beginning of such period constituted the board of directors of the Company (together with any new directors whose election to the Company's board of directors or whose nomination for election by the stockholders was approved by a vote of 66 2/3% of the Company's directors then still in office who were either directors at the beginning of such period or whose election or nomination for election was previously so approved) cease for any reason to constitute a majority of the directors of the Company then in office;

● the termination of trading of the Company's common stock on The Nasdaq Stock Market and the common stock is not approved for trading or quoted on any other U.S. securities exchange or established over-the-counter trading market in the U.S.; or

● the Company (i) consolidates with or merges with or into another person or another person merges with or into the Company or (ii) sells, assigns, transfers, leases, conveys or otherwise disposes of all or substantially all of the assets of the Company and certain of its subsidiaries, taken as a whole, to another person and, in the case of any such merger or consolidation described in clause (i), the securities that are outstanding immediately prior to such transaction (and which represent 100% of the aggregate voting power of the Company's voting stock) are changed into or exchanged for cash, securities or property, unless pursuant to the transaction such securities are changed into or exchanged for securities of the surviving person that represent, immediately after such transaction, at least a majority of the aggregate voting power of the voting stock of the surviving person.

Notwithstanding the foregoing, holders of shares of the Series B Preferred Stock will not have the right to require the Company to redeem their shares if:

● the last reported sale price of shares of the Company's common stock for any five trading days within the 10 consecutive trading days ending immediately before the later of the fundamental change or its announcement equaled or exceeded 105% of the conversion price of the Series B Preferred Stock immediately before the fundamental change or announcement;

● at least 90% of the consideration (excluding cash payments for fractional shares and in respect of dissenters' appraisal rights) in the transaction or transactions constituting the fundamental change consists of shares of

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capital stock traded on a U.S. national securities exchange or quoted on The Nasdaq Stock Market, or which will be so traded or quoted when issued or exchanged in connection with a fundamental change, and as a result of the transaction or transactions, shares of Series B Preferred Stock become convertible into such publicly traded securities; or

● in the case of a merger or consolidation constituting a fundamental change (as described in the fourth bullet above), the transaction is affected solely to change the Company's jurisdiction of incorporation.

Moreover, the Company will not be required to redeem any Series B Preferred Stock upon the occurrence of a fundamental change if a third party makes an offer to purchase the Series B Preferred Stock in the manner, at the price, at the times and otherwise in compliance with the requirements set forth above and such third party purchases all shares of Series B Preferred Stock validly tendered and not withdrawn.

The Company may, at its option, elect to pay the redemption price in cash, in shares of the Company's common stock valued at a discount of 5% from the market price of shares of the Company's common stock, or in any combination thereof. Notwithstanding the foregoing, the Company may only pay such redemption price in shares of the Company's common stock that are registered under the Securities Act and eligible for immediate sale in the public market by non-affiliates of the Company.

**Voting Rights.** Holders of Series B Preferred Stock currently have no voting rights; however, holders may receive certain voting rights, as described in the Series B Certificate of Designation, if (a) dividends on any shares of Series B Preferred Stock, or any other class or series of stock ranking on parity with the Series B Preferred Stock with respect to the payment of dividends, shall be in arrears for dividend periods, whether or not consecutive, containing in the aggregate a number of days equivalent to six calendar quarters or (b) the Company fails to pay the redemption price, plus accrued and unpaid dividends, if any, on the redemption date for shares of Series B Preferred Stock following a fundamental change. In each such event, the holders of Series B Preferred Stock (voting separately as a class with all other classes or series of stock ranking on parity with the Series B Preferred Stock with respect to the payment of dividends and upon which like voting rights have been conferred and are exercisable) will be entitled to elect two directors to the Company's board of directors in addition to those directors already serving on the Company's board of directors at such time (the "Series B Directors"), at the next annual meeting of the Company's stockholders (or at a special meeting of the Company's stockholders called for such purpose, whichever is earlier). The right to elect the Series B Directors will continue for each subsequent annual meeting of the Company's stockholders until all dividends accumulated on the shares of Series B Preferred Stock have been fully paid or set aside for payment or the Company pays in full or sets aside for payment such redemption price, plus accrued but unpaid dividends, if any, on the redemption date for the shares of Series B Preferred Stock following a fundamental change. The term of office of any Series B Directors will terminate immediately upon the termination of the right of holders of Series B Preferred Stock to elect such Series B Directors, as described in this paragraph. Each holder of Series B Preferred Stock will have one vote for each share of Series B Preferred Stock held in the election of Series B Directors. The Company previously failed to make timely payment of the accrued dividends on the Series B Preferred Stock with respect to the May 15, 2019 and August 15, 2019 dividend payment dates. Such amounts were fully paid on or about November 15, 2019.

So long as any shares of Series B Preferred Stock remain outstanding, the Company will not, without the consent of the holders of at least two-thirds of the shares of Series B Preferred Stock outstanding at the time (voting separately as a class with all other series of preferred stock, if any, on parity with the Series B Preferred Stock upon which like voting rights have been conferred and are exercisable) issue or increase the authorized amount of any class or series of shares ranking senior to the outstanding shares of the Series B Preferred Stock as to dividends or upon liquidation. In addition, the Company will not, subject to certain conditions, amend, alter or repeal provisions of the Certificate of Incorporation, as amended, including the Series B Certificate of Designation, whether by merger, consolidation or otherwise, so as to adversely amend, alter or affect any power, preference or special right of the outstanding shares of Series B Preferred Stock or the holders thereof without the affirmative vote of not less than two-thirds of the issued and outstanding shares of Series B Preferred Stock. The amendment of the Certificate of Incorporation in October 2023 did not trigger this provision.

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#### Note 15. Segment Information
We are engaged in the development, design, production, construction, operation and servicing of high temperature fuel cells for clean electric power generation. Critical to the success of our business is, among other things, our research and development efforts, both through customer-sponsored projects and Company-sponsored projects. The research and development activities are viewed as another product line that contributes to the development, design, production and sale of fuel cell products, however, it is not considered a separate operating segment. Our Chief Operating Decision Maker ("CODM") is our President and Chief Executive Officer. The CODM does not review and assess financial information at a discrete enough level to be able to assess performance of research and development activities as if they operated as a standalone business segment. The CODM is provided with and reviews on a regular basis the Company's consolidated Net loss, which is our reported measure of segment profit and loss, when making decisions about allocating resources and assessing the performance of the Company. Therefore, the Company has identified one reportable segment: fuel cell power plant production and research.

Significant segment expenses that are provided to the CODM on a regular basis and are included within consolidated Net loss, which is our reported measure of segment profit and loss are:

● Cost of product revenues,

● Cost of service agreements revenues,

● Cost of generation revenues,

● Cost of Advanced Technologies contract revenues,

● Administrative and selling expenses, and

● Research and development expenses.

Other segment items are represented by Interest expense, Interest income, Other income (expense), net, Provision for income taxes and unusual items from time to time, such as Restructuring expense and Impairment expense. The CODM is not regularly provided a measure of segment assets.

Please refer to the Consolidated Statements of Operations and Comprehensive Loss for the years ended October 31, 2025, 2024 and 2023 for significant segment expenses and other segment items.

Revenues, by geographic location (based on the customer's ordering location) for the years ended October 31, 2025, 2024 and 2023 were as follows (in thousands):

---

| | | | |
|:---|:---|:---|:---|
|  | **2025** | **2024** | **2023** |
| United States | $&nbsp;&nbsp;&nbsp;&nbsp;82398 | $&nbsp;&nbsp;&nbsp;&nbsp;86962 | $&nbsp;&nbsp;&nbsp;&nbsp;63289 |
| South Korea | &nbsp;&nbsp;&nbsp;&nbsp;75221 | &nbsp;&nbsp;&nbsp;&nbsp;22836 | &nbsp;&nbsp;&nbsp;&nbsp;58432 |
| Europe | &nbsp;&nbsp;&nbsp;&nbsp;428 | &nbsp;&nbsp;&nbsp;&nbsp;1919 | &nbsp;&nbsp;&nbsp;&nbsp;1673 |
| Canada | &nbsp;&nbsp;&nbsp;&nbsp;115 | &nbsp;&nbsp;&nbsp;&nbsp;415 | &nbsp;&nbsp;&nbsp;&nbsp;— |
| &nbsp;&nbsp;Total | $&nbsp;&nbsp;&nbsp;&nbsp;158162 | $&nbsp;&nbsp;&nbsp;&nbsp;112132 | $&nbsp;&nbsp;&nbsp;&nbsp;123394 |

---

Long-lived assets located outside of the United States as of October 31, 2025 and 2024 are not significant individually or in the aggregate.

#### Note 16. Benefit Plans
We have stockholder approved equity incentive plans, a stockholder approved Employee Stock Purchase Plan and an employee tax-deferred savings plan, which are described in more detail below.

#### Fifth Amended and Restated 2018 Omnibus Incentive Plan
At the Company's 2025 Annual Meeting of Stockholders, which was called to order and adjourned on April 3, 2025 and reconvened and concluded on April 17, 2025 (the "2025 Annual Meeting"), the Company's stockholders approved the amendment and restatement of the FuelCell Energy, Inc. Fourth Amended and Restated 2018 Omnibus Incentive Plan (as so amended and restated, the "Fifth Amended and Restated Incentive Plan"), which had previously been approved by the Board, subject to stockholder approval.

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The purpose of the amendment and restatement of the Fourth Amended and Restated 2018 Omnibus Incentive Plan was to authorize the Company to issue up to 750,000 additional shares of the Company's common stock pursuant to awards under the Fifth Amended and Restated Incentive Plan.

Following the approval of the amendment and restatement (and therefore the Fifth Amended and Restated Incentive Plan) by the Company's stockholders at the 2025 Annual Meeting, the Fifth Amended and Restated Incentive Plan provides the Company with the authority to issue a total of 2,194,444 shares of the Company's common stock. The Fifth Amended and Restated Incentive Plan authorizes grants of stock options, stock appreciation rights ("SARs"), restricted stock awards ("RSAs"), restricted stock units ("RSUs"), shares, performance shares, performance units, incentive awards and dividend equivalent units to officers, other employees, directors, consultants and advisors. Up to 61,111 shares of the Company's common stock may be issued pursuant to the exercise of incentive stock options. Stock options, RSAs, RSUs and SARs have restrictions as to transferability. Stock option exercise prices are fixed by the Board but shall not be less than the fair market value of our common stock on the date of the grant. SARs may be granted in conjunction with stock options. The Board or the administrator of the Fifth Amended and Restated Incentive Plan may terminate the Fifth Amended and Restated Incentive Plan at any time. No award may be granted under the Fifth Amended and Restated Plan after the tenth anniversary of the approval of the Fifth Amended and Restated Plan by stockholders at the 2025 Annual Meeting.

Of the 2,194,444 shares of the Company's common stock authorized to be issued under the Fifth Amended and Restated Incentive Plan as of October 31, 2025, 938,382 remained available for grant as of October 31, 2025. Of the shares remaining available for grant, the Company had reserved up to 234,078 shares for potential future issuance if maximum performance is achieved in connection with the performance stock units granted in fiscal years 2024 and 2025, which are discussed in more detail below under the heading "Long-Term Incentive Plans" below.

***Amended and Restated 2018 Employee Stock Purchase Plan***

At the 2023 Annual Meeting of Stockholders (the "2023 Annual Meeting"), the Company's stockholders approved the amendment and restatement of the FuelCell Energy, Inc. 2018 Employee Stock Purchase Plan (as so amended and restated, the "Amended and Restated ESPP"), which had previously been approved by the Board, subject to stockholder approval.

The purpose of the amendment and restatement of the 2018 Employee Stock Purchase Plan was to authorize the Company to issue up to 16,666 additional shares of the Company's common stock under the Amended and Restated ESPP.

Following the approval of the amendment and restatement (and therefore the Amended and Restated ESPP) by the Company's stockholders at the 2023 Annual Meeting, the Amended and Restated ESPP provided the Company with the authority to issue a total of 18,055 shares of the Company's common stock. The Amended and Restated ESPP also increased the limit on the number of shares of the Company's common stock that any individual participant may purchase during an offering period to 33 shares.

The Amended and Restated ESPP, which is intended to satisfy the requirements of Section 423 of the Internal Revenue Code of 1986, as amended, allows the Company to provide eligible employees of the Company and of certain designated subsidiaries with the opportunity to voluntarily participate in the Amended and Restated ESPP, enabling such participants to purchase shares of the Company's common stock at a discount to market price at the time of such purchase. The Board may, in its sole discretion, terminate the Amended and Restated ESPP at any time. If the Board does not earlier terminate the Amended and Restated ESPP, the Amended and Restated ESPP will terminate on the date on which all shares of common stock available for issuance have been sold pursuant to purchase rights exercised under the Amended and Restated ESPP.

Under the Amended and Restated ESPP, eligible employees have the right to purchase shares of common stock at the lesser of (i) 85% of the last reported sale price of our common stock on the first business day of the offering period, or (ii) 85% of the last reported sale price of the common stock on the last business day of the offering period, in either case rounded up to avoid impermissible trading fractions. Shares issued pursuant to the ESPP contain a legend restricting the transfer or sale of such common stock for a period of 0.5 year after the date of purchase.

The ESPP activity for the years ended October 31, 2025, 2024 and 2023 was de minimis.

***Long-Term Incentive Plans***

The Company's Board periodically approves Long Term Incentive Plans which include performance-based awards tied to the Company's common stock price as well as time-vesting awards. None of the awards granted as part of Long-Term

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Incentive Plans include any dividend equivalent or other stockholder rights. To the extent the awards are earned, they may be settled in shares or cash of an equivalent value at the Company's option. These plans are further described below.

*Fiscal Year 2025 Long-Term Incentive Plan Awards:*

On December 30, 2024, the Compensation and Leadership Development Committee of the Board (the "Compensation Committee") approved the specific components of, and the payout calibration for, certain awards to be made under the Company's Long Term Incentive Plan (which is a sub-plan consisting of awards made under the Company's 2018 Omnibus Incentive Plan, as amended and restated (the "Omnibus Incentive Plan")) for fiscal year 2025. The participants in the Long Term Incentive Plan for fiscal year 2025 are members of senior management. The Plan consists of two award components for fiscal year 2025:

1) Relative Total Shareholder Return ("TSR") Performance Share Units ("PSU"). The PSUs granted during the year ended October 31, 2025 will be earned over the performance period ending on October 31, 2027, but will remain subject to a continued service-based vesting requirement until the third anniversary of the date of grant. The performance measure for the relative TSR PSUs is the TSR of the Company relative to the TSR of the Russell 2000 from November 1, 2024 through October 31, 2027. The Compensation Committee established the performance assessment criteria for the relative TSR PSUs as the TSR of the Company relative to the TSR of the Russell 2000, with the award calibration being 100% plus or minus 0.5x the difference between the Company's TSR and the Russell 2000 Index composite TSR. The award is capped at 200% of the target number of PSUs, and the award is further capped at 100% of the target number of PSUs if the Company's absolute TSR over the performance period is negative. The Company's TSR is calculated by subtracting the Company's beginning stock price (defined as the average closing price of the Company's common stock over the 20 consecutive trading days ending on October 31, 2024) from the ending stock price (defined as the average closing price of the Company's common stock over the 20 consecutive trading days ending on October 31, 2027), adding any dividends during the period, and then dividing the result by the Company's beginning stock price. Given that the performance period is still open, the Company has reserved shares equal to 200% of the target number of PSUs, subject to performance during the remaining performance period as well as vesting based on continued service until December 30, 2027 (the third anniversary of the grant date). A portion of the PSUs may be settled in cash in lieu of shares if actual performance achieved with respect to the PSUs is such that the number of PSUs earned exceeds the number of shares then available under the Omnibus Incentive Plan.

2) Time-vesting RSUs. The time-vesting RSUs granted during the year ended October 31, 2025 will vest at a rate of one-half of the total number of RSUs on each of the first two anniversaries of the date of grant.

*Fiscal Year 2024 Long-Term Incentive Plan Awards:*

On December 11, 2023, the Compensation Committee approved the specific components of, and the payout calibration for, certain awards to be made under the Company's Long Term Incentive Plan for fiscal year 2024. The participants in the Long Term Incentive Plan for fiscal year 2024 are members of senior management. The Plan consists of two award components for fiscal year 2024:

1) Relative TSR PSU. The PSUs granted during the year ended October 31, 2024 will be earned over the performance period ending on October 31, 2026, but will remain subject to a continued service-based vesting requirement until the third anniversary of the date of grant. The performance measure for the relative TSR PSUs is the TSR of the Company relative to the TSR of the Russell 2000 from November 1, 2023 through October 31, 2026. The Compensation Committee established the performance assessment criteria for the relative TSR PSUs as the TSR of the Company relative to the TSR of the Russell 2000, with the award calibration being 100% plus or minus 0.5x the difference between the Company's TSR and the Russell 2000 Index composite TSR. The award is capped at 200% of the target number of PSUs, and the award is further capped at 100% of the target number of PSUs if the Company's absolute TSR over the performance period is negative. The Company's TSR is calculated by subtracting the Company's beginning stock price (defined as the average closing price of the Company's common stock over the 20 consecutive trading days ending on October 31, 2023) from the ending stock price (defined as the average closing price of the Company's common stock over the 20 consecutive trading days ending on October 31, 2026), adding any dividends during the period, and then dividing the result by the Company's beginning stock price. Given that the performance period is still open, the Company has reserved shares equal to 200% of the target number of PSUs, subject to performance during the remaining performance

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period as well as vesting based on continued service until December 11, 2026 (the third anniversary of the grant date).

2) Time-vesting RSUs. The time-vesting RSUs granted during the year ended October 31, 2024 vest at a rate of one-third of the total number of RSUs on each of the first three anniversaries of the date of grant.

*Fiscal Year 2023 Long-Term Incentive Plan Awards:*

On December 5, 2022, the Board approved a Long-Term Incentive Plan for fiscal year 2023 (the "FY 2023 LTI Plan") as a sub-plan consisting of awards made under the Omnibus Incentive Plan. The participants in the FY 2023 LTI Plan are members of senior management. The FY 2023 LTI Plan consists of two award components:

1) Relative TSR PSU awards. The PSUs granted during the year ended October 31, 2023 were earned over the performance period ended on October 31, 2025, but remained subject to a continued service-based vesting requirement until the third anniversary of the date of grant. The performance measure for the relative TSR PSUs was the TSR of the Company relative to the TSR of the Russell 2000 from November 1, 2022 through October 31, 2025. The Compensation Committee established the performance assessment criteria for the relative TSR PSUs as the TSR of the Company relative to the TSR of the Russell 2000, with the award calibration being 100% plus or minus 0.5x the difference between the Company's TSR and the Russell 2000 Index composite TSR. The award was capped at 200% of the target number of PSUs, and the award was further capped at 100% of the target number of PSUs if the Company's absolute TSR over the performance period was negative. The Company's TSR was calculated by subtracting the Company's beginning stock price (defined as the average closing price of the Company's common stock over the 60 consecutive trading days ending on October 31, 2022) from the ending stock price (defined as the average closing price of the Company's common stock over the 60 consecutive trading days ending on October 31, 2025), adding any dividends during the period, and then dividing the result by the Company's beginning stock price. On November 19, 2025, based on the calculations described above, the Compensation Committee certified awards at 36.77% of the target amount, subject to continued service until December 5, 2025 (the third anniversary of the grant date).

2) Time-vesting RSUs. The time-vesting RSUs granted during the year ended October 31, 2023 vest at a rate of one-third of the total number of RSUs on each of the first three anniversaries of the date of grant.

#### Other Equity Incentive Plans
The Company's 2010 Equity Incentive Plan remains in effect only to the extent of awards outstanding under the plan as of October 31, 2025.

***Share-Based Compensation***

Share-based compensation was reflected in the Consolidated Statements of Operations and Comprehensive Loss as follows (in thousands):

---

| | | | |
|:---|:---|:---|:---|
|  | **Year Ended October 31,** | **Year Ended October 31,** | **Year Ended October 31,** |
|  | **2025** | **2024** | **2023** |
| Cost of revenues | $871 | $1460 | $1502 |
| Administrative and selling expense | 9420 | 8583 | 8657 |
| Research and development expense | 613 | 1428 | 1429 |
|  | $&nbsp;&nbsp;&nbsp;&nbsp;10904 | $&nbsp;&nbsp;&nbsp;&nbsp;11471 | $&nbsp;&nbsp;&nbsp;&nbsp;11588 |

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#### Restricted Stock Units Including Performance Based Awards
The following table summarizes our RSU and PSU activity for the year ended October 31, 2025:

---

| | | |
|:---|:---|:---|
| **Restricted Stock Units** | **Shares** | **Weighted-Average Fair Value** |
| Outstanding as of October 31, 2024 | &nbsp;&nbsp;&nbsp;&nbsp;516561 | $64.53 |
| &nbsp;&nbsp;Granted - time-vesting RSUs | &nbsp;&nbsp;&nbsp;&nbsp;507685 | 8.11 |
| &nbsp;&nbsp;Granted - PSUs | &nbsp;&nbsp;&nbsp;&nbsp;186507 | 14.38 |
| &nbsp;&nbsp;Vested | &nbsp;&nbsp;&nbsp;&nbsp;(146688) | 63.50 |
| &nbsp;&nbsp;Forfeited | &nbsp;&nbsp;&nbsp;&nbsp;(162004) | 38.19 |
| Outstanding as of October 31, 2025 | &nbsp;&nbsp;&nbsp;&nbsp;902061 | $26.38 |

---

On December 30, 2024, 373,008 RSUs were awarded to senior management under the Company's Long Term Incentive Plan for fiscal year 2025, which included 186,507 PSUs and 186,501 time-based vesting RSUs. The PSUs are expensed over the three-year service period and the time-based vesting RSUs are expensed over the two-year service period.

In addition to the awards granted to senior management, during the year ended October 31, 2025, the Board also granted a total of 305,137 time-based vesting RSUs to certain salaried employees and 16,047 time-based vesting RSUs to certain hourly employees to promote ownership of the Company's equity and retention. The time-based vesting RSUs granted during the year ended October 31, 2025 vest at a rate of one-half of the total number of RSUs granted on each of the first two anniversaries of the date of grant.

PSUs are issued assuming participants achieve 100% target performance. The Company also reserves additional shares assuming the maximum performance targets are met. As of October 31, 2025, the Company had reserved an additional 81,250 shares for potential issuance under the awards made under the Company's Long Term Incentive Plan for fiscal year 2024, and an additional 152,828 shares for potential issuance under the awards made under the Company's Long Term Incentive Plan for fiscal year 2025.

RSU and PSU expense is based on the fair value of the award at the date of grant and is amortized over the vesting period, which is generally over 2 or 3 years.

As of October 31, 2025, total unrecognized compensation cost related to RSUs and PSUs was $8.7 million, which is expected to be recognized over approximately the next two years on a weighted-average basis.

#### Stock Awards
During the years ended October 31, 2025, 2024 and 2023, we awarded 33,666, 6,651 and 3,454 shares, respectively, of fully vested, unrestricted common stock to the independent members of our Board as a component of Board compensation, which resulted in recognizing $0.2 million of expense for each of the years ended October 31, 2025, 2024 and 2023.

#### Employee Tax-Deferred Savings Plans
We offer a 401(k) plan (the "401(k) Plan") to all full time employees that provides for tax-deferred salary deductions for eligible employees (beginning the first month following an employee's hire date). Employees may choose to make voluntary contributions of their annual compensation to the 401(k) Plan, limited to an annual maximum amount as set periodically by the U.S. Internal Revenue Service ("IRS"). Employee contributions are fully vested when made. Under the 401(k) Plan, there is no option available to the employee to receive or purchase our common stock. Matching contributions of 2% under the 401(k) Plan aggregated $1.0 million, $1.3 million, and $1.1 million for the years ended October 31, 2025, 2024, and 2023, respectively.

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#### Note 17. Income Taxes
The components of loss before income taxes for the years ended October 31, 2025, 2024, and 2023 were as follows (in thousands):

---

| | | | |
|:---|:---|:---|:---|
|  | **2025** | **2024** | **2023** |
| U.S. | $&nbsp;&nbsp;&nbsp;&nbsp;(199523) | $&nbsp;&nbsp;&nbsp;&nbsp;(140713) | $&nbsp;&nbsp;&nbsp;&nbsp;(95910) |
| Foreign | &nbsp;&nbsp;&nbsp;&nbsp;8288 | &nbsp;&nbsp;&nbsp;&nbsp;(16040) | &nbsp;&nbsp;&nbsp;&nbsp;(11565) |
| Loss before income taxes | $&nbsp;&nbsp;&nbsp;&nbsp;(191235) | $&nbsp;&nbsp;&nbsp;&nbsp;(156753) | $&nbsp;&nbsp;&nbsp;&nbsp;(107475) |

---

The Company recorded an income tax provision of $0.1 million, $0.03 million and $0.6 million for the years ended October 31, 2025, 2024 and 2023, respectively. The Company also recorded an income tax benefit of approximately $0.3 million in fiscal year 2025 which was primarily related to the impairment of the Versa reporting unit and the resulting write-off of the IPR&D deferred tax liability, which is presented net within Impairment expense in the Consolidated Statements of Operations and Comprehensive Loss.

Franchise tax expense, which is included in administrative and selling expenses, was $0.6 million, $0.5 million and $0.9 million for the years ended October 31, 2025, 2024 and 2023, respectively.

The reconciliation of the federal statutory income tax rate to our effective income tax rate for the years ended October 31, 2025, 2024 and 2023 is as follows:

---

| | | | |
|:---|:---|:---|:---|
|  | **2025** | **2024** | **2023** |
| Statutory federal income tax rate | (21.0)% | (21.0)% | (21.0)% |
| &nbsp;&nbsp;Increase (decrease) in income taxes resulting from: |  |  |  |
| &nbsp;&nbsp;State taxes, net of Federal benefits | (4.5)% | (4.4)% | (3.2)% |
| &nbsp;&nbsp;Foreign withholding tax | 0.1% | 0.1% | 0.5% |
| &nbsp;&nbsp;Net operating loss expiration and impairment | 6.6% | (1.1)% | 6.1% |
| &nbsp;&nbsp;Nondeductible expenditures | 0.4% | 0.2% | 2.1% |
| &nbsp;&nbsp;Change in tax rates | (0.7)% | (0.4)% | 2.8% |
| &nbsp;&nbsp;Other, net | —% | 0.3% | 0.6% |
| &nbsp;&nbsp;Deferred only adjustment | 4.6% | (0.4)% | (0.1)% |
| &nbsp;&nbsp;Valuation allowance | 14.6% | 26.8% | 12.7% |
| Effective income tax rate | 0.1% | 0.1% | 0.5% |

---

On July 4, 2025, the One Big Beautiful Bill Act ("OBBBA") was signed into law. The OBBBA includes significant provisions, such as the permanent extension of certain expiring provisions of the Tax Cuts and Jobs Act, modifications to the international tax framework and the restoration of favorable tax treatment for certain business provisions such as domestic research cost expensing. The legislation has multiple effective dates, however the earliest effective date for provisions applicable to the Company would be for tax years starting January 1, 2025. Management is still finalizing its assessment of the OBBBA and its impact on the Company, but it does not expect the enactment of this law to have material impact on the tax provision or disclosures for the year ended October 31, 2025.

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Our deferred tax assets and liabilities consisted of the following as of October 31, 2025 and 2024 (in thousands):

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| | | |
|:---|:---|:---|
|  | **2025** | **2024** |
| Deferred tax assets: |  |  |
| &nbsp;&nbsp;Compensation and benefit accruals | $9348 | $7344 |
| &nbsp;&nbsp;Bad debt and other allowances | 1881 | 2695 |
| &nbsp;&nbsp;Capital loss and tax credit carry-forwards | 16113 | 16296 |
| &nbsp;&nbsp;Net operating losses (domestic and foreign) | 195234 | 170780 |
| &nbsp;&nbsp;Deferred license revenue | 600 | 871 |
| &nbsp;&nbsp;Accumulated depreciation | 17339 | 15969 |
| &nbsp;&nbsp;Grant revenue | 95 | 210 |
| &nbsp;&nbsp;Excess business interest | 6470 | 5860 |
| &nbsp;&nbsp;Operating lease liabilities | 2698 | 1840 |
| &nbsp;&nbsp;Capitalized research and development | 19878 | 18305 |
| &nbsp;&nbsp;Mark-to-market | 1576 | 1702 |
| &nbsp;&nbsp;Other | 222 | 150 |
| Gross deferred tax assets: | 271454 | 242022 |
| &nbsp;&nbsp;Valuation allowance | (254310) | (228139) |
| &nbsp;&nbsp;Deferred tax assets after valuation allowance | 17144 | 13883 |
| Deferred tax liability: |  |  |
| &nbsp;&nbsp;Net loss attributable to noncontrolling interests | (7817) | (7567) |
| &nbsp;&nbsp;In process research and development |  | (2322) |
| &nbsp;&nbsp;Right of use assets | (2366) | (1556) |
| &nbsp;&nbsp;Other | (6961) | (2745) |
| Net deferred tax liability | $— | $(307) |

---

We continually evaluate our deferred tax assets as to whether it is "more likely than not" that the deferred tax assets will be realized. In assessing the realizability of our deferred tax assets, management considers the scheduled reversal of deferred tax liabilities, projected future taxable income and tax planning strategies. Based on the projections for future taxable income over the periods in which the deferred tax assets are realizable, management believes significant uncertainty exists surrounding the recoverability of the deferred tax assets. As a result, we recorded a valuation allowance against our net deferred tax assets. As of October 31, 2025, we had $1.1 billion of federal net operating loss ("NOL") carryforwards, $478.2 million of which expire in the fiscal years 2026 through 2037, and $621.6 million of which do not expire. As of October 31, 2025, we also had $582.1 million of state NOL carryforwards that expire in the fiscal years 2027 through 2040. Additionally, as of October 31, 2025, we had $13.6 million of state tax credits available that will expire from fiscal years 2026 through 2044.

During the 2020 tax year, the Company experienced an "ownership change" as defined by Internal Revenue Code Section 382. As a result, the utilization of federal and state NOLs generated prior to October of 2020 is subject to limitation and a reduction was made in fiscal year 2020 to the carrying balance of the federal and state NOLs to reflect the future limitation on utilization. The Company has updated its analysis of potential ownership changes through October 31, 2025 and concluded that no additional ownership changes have occurred subsequent to October 2020. In addition, the acquisition of Versa Power Systems Ltd. in fiscal year 2013 triggered a Section 382 ownership change at the level of Versa Power Systems Ltd. which will limit the future usage of some of the federal and state NOLs that we acquired in that transaction. Accordingly, a valuation allowance has been recorded against the deferred tax asset associated with these attributes to reflect the future limitation on utilization.

The Company's financial statements reflect expected future tax consequences of uncertain tax positions that the Company has taken or expects to take on a tax return (including a decision whether to file or not file a return in a particular jurisdiction) presuming the taxing authorities' full knowledge of the position and all relevant facts.

The Company did not have any unrecognized tax benefits as of October 31, 2025 and 2024. It is our policy to record interest and penalties on unrecognized tax benefits as income taxes; however, because of our significant NOLs, no provision for interest or penalties has been recorded.

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We file income tax returns in the U.S. and certain states, primarily Connecticut, California and New York, as well as income tax returns required internationally for South Korea, Germany, Japan and Canada. We are open to examination by the IRS and various states in which we file for fiscal year 2004 to the present.

#### Note 18. Loss Per Share
Basic loss per common share ("EPS") is generally calculated as loss available to common stockholders divided by the weighted average number of common shares outstanding. Diluted EPS is generally calculated as loss available to common stockholders divided by the weighted average number of common shares outstanding plus the dilutive effect of common share equivalents.

The calculation of basic and diluted EPS for the years ended October 31, 2025, 2024 and 2023 was as follows (amounts in thousands, except share and per share amounts):

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| | | | |
|:---|:---|:---|:---|
|  | **Year Ended October 31,** | **Year Ended October 31,** | **Year Ended October 31,** |
|  | **2025** | **2024** | **2023** |
| Numerator |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Net loss attributable to FuelCell Energy, Inc. | $(187899) | $(126009) | $(107568) |
| &nbsp;&nbsp;&nbsp;&nbsp;Series B preferred stock dividends | (3200) | (3200) | (3200) |
| &nbsp;&nbsp;&nbsp;&nbsp;Net loss attributable to common stockholders | $(191099) | $(129209) | $&nbsp;&nbsp;&nbsp;&nbsp;(110768) |
| Denominator |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Weighted average common shares outstanding – basic | 25743252 | 16505257 | 13991593 |
| &nbsp;&nbsp;&nbsp;&nbsp;Effect of dilutive securities <sup>(1)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;— |
| &nbsp;&nbsp;&nbsp;&nbsp;Weighted average common shares outstanding – diluted | 25743252 | 16505257 | &nbsp;&nbsp;&nbsp;&nbsp;13991593 |
| &nbsp;&nbsp;&nbsp;&nbsp;Net loss to common stockholders per share – basic | $(7.42) | $(7.83) | $(7.92) |
| &nbsp;&nbsp;&nbsp;&nbsp;Net loss to common stockholders per share – diluted <sup>(1)</sup> | $(7.42) | $(7.83) | $(7.92) |

---

&nbsp;&nbsp;&nbsp;&nbsp;(1) Due to the net loss to common stockholders in each of the years presented above, diluted earnings per share was computed without consideration to potentially dilutive instruments as their inclusion would have been antidilutive. As of October 31, 2025, 2024 and 2023, potentially dilutive securities excluded from the diluted loss per share calculation are as follows:

---

| | | | |
|:---|:---|:---|:---|
|  | **October 31,**<br>**2025** | **October 31,**<br>**2024** | **October 31,** <br>**2023** |
| Outstanding options to purchase common stock | 505 | 574 | 610 |
| Unvested Restricted Stock Units | 902061 | 516561 | 218105 |
| 5% Series B Cumulative Convertible Perpetual Preferred Stock | 1261 | 1261 | 1261 |
| Total potentially dilutive securities | 903827 | 518396 | &nbsp;&nbsp;&nbsp;&nbsp;219976 |

---

[**Table of Contents**](#TOC)

#### Note 19. Restricted Cash
As of October 31, 2025 and 2024, there was $63.7 million and $60.8 million, respectively, of restricted cash and cash equivalents pledged as performance security, reserved for future debt service requirements, and reserved for letters of credit for certain banking requirements and contracts. The allocation of restricted cash is as follows (in thousands):

---

| | | |
|:---|:---|:---|
|  | **October 31,**<br>**2025** | **October 31,**<br>**2024** |
| Cash Restricted for Outstanding Letters of Credit <sup>(1)</sup> | $14152 | $14152 |
| Cash Restricted for Crestmark Sale-Leaseback Transactions | 2916 | 2908 |
| Debt Service and Performance Reserves related to OpCo Financing Facility | 22546 | 24721 |
| Debt Service and Performance Reserves related to the Senior and Subordinated Back Leverage Loan Facilities | 16477 | 12869 |
| Other | 7602 | 6100 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total Restricted Cash | 63693 | 60750 |
| &nbsp;&nbsp;&nbsp;&nbsp;Restricted Cash and Cash Equivalents – Short-Term <sup>(2)</sup> | (16601) | (12161) |
| &nbsp;&nbsp;&nbsp;&nbsp;Restricted Cash and Cash Equivalents – Long-Term | $47092 | $48589 |

---

&nbsp;&nbsp;&nbsp;&nbsp;(1) Letters of credit outstanding as of October 31, 2025 expire on various dates through October 2029.

&nbsp;&nbsp;&nbsp;&nbsp;(2) Short-term restricted cash and cash equivalents are amounts expected to be released and categorized as unrestricted cash within twelve months of the balance sheet date.

#### Note 20. Commitments and Contingencies

#### Service Agreements
Under the provisions of its service agreements, the Company provides services to maintain, monitor, and repair customer power plants to meet minimum operating levels. Under the terms of such service agreements, the particular power plant must meet a minimum operating output during defined periods of the term. If minimum output falls below the contract requirement, the Company may be subject to performance penalties and/or may be required to repair or replace the customer's fuel cell module(s).

#### Power Purchase Agreements
Under the terms of the Company's PPAs, customers agree to purchase power from the Company's fuel cell power plants at negotiated rates. Electricity rates are generally a function of the customers' current and estimated future electricity pricing available from the grid. As owner or lessee of the power plants, the Company is responsible for all operating costs necessary to maintain, monitor and repair the power plants. Under certain agreements, the Company is also responsible for procuring fuel, generally natural gas or biogas, to run the power plants. In addition, under the terms of some of the PPAs, the Company may be subject to a performance penalty if the Company does not meet certain performance requirements.

***Project Fuel Exposure***

Certain of our PPAs for project assets in our generation operating portfolio expose us to fluctuating fuel price risks as well as the risk of being unable to procure the required amounts of fuel and the lack of alternative available fuel sources. We seek to mitigate our fuel risk using strategies including: (i) fuel cost reimbursement mechanisms in our PPAs to allow for pass through of fuel costs (full or partial) where possible, which we have done with our 14.9 MW operating project in Bridgeport, CT; (ii) procuring fuel under fixed price physical supply contracts with investment grade counterparties, which we have done for twenty years for our Tulare BioMAT project, the initial seven years of the twenty year PPA for our LIPA Yaphank Project (through September 2028), six years of the twenty year PPA for our 14.0 MW and 2.8 MW Derby Projects (through October 2029), and the initial three years of the twenty year hydrogen production and power purchase agreement for our Toyota project (through May of 2026); and (iii) potentially entering into future financial hedges with investment grade counterparties to offset potential negative market fluctuations. If the Company is unable to secure fuel on favorable economic terms, it may result in impairment charges to the Derby and Yaphank project assets and further charges for the Toyota project asset.

[**Table of Contents**](#TOC)

The Company net settled certain natural gas purchases under previous normal purchase normal sale contract designations during the fourth quarter of fiscal year 2023 for one contract and the second quarter of fiscal year 2024 for other contracts, which resulted in a change to mark-to-market accounting. The Company recorded a mark-to-market net gain of $4.7 million, a mark-to-market net loss of $6.9 million, and a mark-to-market net gain of $4.1 million associated with the natural gas contract derivatives for the years ended October 31, 2025, 2024 and 2023, respectively. The Company has recorded derivative assets within other assets on the Consolidated Balance Sheets, which had an estimated fair value of $2.0 million and $1.2 million as of October 31, 2025 and October 31, 2024, respectively. The Company has recorded derivative liabilities within long-term debt and other liabilities on the Consolidated Balance Sheets, which had an estimated fair value of $0.1 million and $4.0 million as of October 31, 2025 and October 31, 2024, respectively. The natural gas contract derivatives are classified as Level 2 financial assets/liabilities since the values can be determined based on readily observable inputs for underlying natural gas forward prices.

#### Other
As of October 31, 2025, the Company had unconditional purchase commitments aggregating $59.8 million, for materials, supplies and services in the normal course of business.

#### Legal Proceedings
From time to time, the Company is involved in legal proceedings, including, but not limited to, regulatory proceedings, claims, mediations, arbitrations and litigation, arising out of the ordinary course of its business ("Legal Proceedings"). Although the Company cannot assure the outcome of such Legal Proceedings, management presently believes that the result of such Legal Proceedings, either individually, or in the aggregate, will not have a material adverse effect on the Company's consolidated financial statements, and no material amounts have been accrued in the Company's consolidated financial statements with respect to these matters.

#### Note 21. Supplemental Cash Flow Information
The following represents supplemental cash flow information (in thousands):

---

| | | | |
|:---|:---|:---|:---|
|  | **Year Ended October 31,** | **Year Ended October 31,** | **Year Ended October 31,** |
|  | **2025** | **2024** | **2023** |
| Cash interest paid | $7251 | $6796 | $3088 |
| Income taxes paid | 154 | 16 | 6 |
| Noncash financing and investing activity: |  |  |  |
| &nbsp;&nbsp;Noncash reclassifications between inventory and project assets | 2148 | 4586 | 1987 |
| &nbsp;&nbsp;Director stock compensation | 220 | 159 | 225 |
| &nbsp;&nbsp;Accrued noncontrolling interest distribution |  |  | 148 |
| &nbsp;&nbsp;Addition of operating lease liabilities | 3992 | 395 | 1952 |
| &nbsp;&nbsp;Addition of operating lease right-of-use assets | 3992 | 395 | 1952 |
| &nbsp;&nbsp;Noncash reduction in basis of project assets |  |  | 6330 |
| &nbsp;&nbsp;Accrued purchase of fixed assets, cash paid to be paid in subsequent period | 408 | 2958 | 1646 |
| &nbsp;&nbsp;Accrued purchase of project assets, cash to be paid in subsequent period | 1 | 269 | 4515 |

---

[**Table of Contents**](#TOC)

#### Note 22. Subsequent Events
***Sales of Common Stock Under the Sales Agreement***

Subsequent to October 31, 2025, approximately 1.6 million shares of the Company's common stock were sold under the Sales Agreement (as defined elsewhere herein), at an average sale price of $8.37 per share, resulting in gross proceeds of approximately $13.4 million before deducting sales commissions and fees, and net proceeds to the Company of approximately $13.1 million after deducting sales commissions and fees totaling approximately $0.3 million. Approximately $1.1 million of shares remained available for sale under the Sales Agreement following these sales.

***2025 EXIM Financing***

On November 26, 2025, the Company closed on its second project debt financing transaction (the "2025 EXIM Financing") with EXIM to support the Company's obligations under the LTSA with GGE. In conjunction with this financing, the Company entered into a promissory note and related security agreements securing the loan with equipment liens, resulting in gross proceeds of approximately $25.0 million. Interest accrues at a fixed interest rate of 5.29%, and the note is repayable in monthly installments consisting of interest and principal over 7 years from the date of the first debt payment, which is due in December 2025. After payment of customary fees and transaction costs, net proceeds were approximately $23.1 million.

The credit agreement between the Company and EXIM with respect to the 2025 EXIM Financing contains certain reporting requirements and other affirmative and negative covenants which are customary for transactions of this type. In addition, under this credit agreement and through an amendment to the credit agreement for the 2024 EXIM Financing (as defined elsewhere herein), the Company is required to maintain, throughout the remaining term of the credit agreement for the 2024 EXIM Financing and the term of the credit agreement for the 2025 EXIM Financing, a total minimum cash balance of $55.0 million. The amendment to the credit agreement for the 2024 EXIM Financing, which was executed in conjunction with and at the same time as the credit agreement for the 2025 EXIM Financing, reduced the total minimum cash balance requirement from $100.0 million to $55.0 million. For the purposes of these credit agreements, cash is defined as the sum of unrestricted cash plus all short-term (but no longer than three months), marketable United States Treasury instruments (as measured based on the maturity amount of each instrument).

[**Table of Contents**](#TOC)

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| | |
|:---|:---|
| **Item 9.** | **CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE** |

---

Not applicable.

#### Item 9A. CONTROLS AND PROCEDURES

#### Disclosure Controls and Procedures.
The Company maintains disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934), which are designed to provide reasonable assurance that information required to be disclosed in the Company's periodic SEC reports is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms, and that such information is accumulated and communicated to its principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required disclosure.

We carried out an evaluation, under the supervision and with the participation of our principal executive officer and principal financial officer, of the effectiveness of the design and operation of our disclosure controls and procedures as of the end of the period covered by this report. Based on that evaluation, the Company's principal executive officer and principal financial officer have concluded that the Company's disclosure controls and procedures were effective as of the end of the period covered by this report.

#### Management's Annual Report on Internal Control Over Financial Reporting.
Management of FuelCell Energy, Inc. and its subsidiaries (the "Company") is responsible for establishing and maintaining adequate internal control over financial reporting (as such term is defined in Rule 13a-15(f) under the Securities Exchange Act of 1934). The Company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles in the United States of America. Internal control over financial reporting includes those policies and procedures that:

● Pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and dispositions of the assets of the Company;

● Provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles in the United States of America, and that receipts and expenditures of the Company are being made only in accordance with authorizations of management and directors of the Company; and

● Provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the Company's assets that could have a material effect on the financial statements.

Under the supervision and with the participation of management, including our principal executive and principal financial officers, we evaluated the Company's internal control over financial reporting as of October 31, 2025, based on criteria for effective internal control over financial reporting established in the *Internal Control — Integrated Framework (2013)* issued by the Committee of Sponsoring Organizations of the Treadway Commission ("COSO"). Based on this assessment, we have concluded that the Company's internal control over financial reporting was effective as of October 31, 2025 based on the specified criteria. The Company's independent registered public accounting firm, KPMG LLP, has issued an audit report on the Company's internal control over financial reporting, which appears in Part II, Item 8 of this Form 10-K.

#### Changes in Internal Control Over Financial Reporting.
There have been no changes in our internal control over financial reporting that occurred during the fourth quarter of fiscal year 2025 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

[**Table of Contents**](#TOC)

#### Item 9B. OTHER INFORMATION
(b) During the three months ended October 31, 2025, no director or Section 16 officer of the Company adopted or terminated a "Rule 10b5-1 trading arrangement" or "non-Rule 10b5-1 trading arrangement," as each term is defined in Item 408(a) of Regulation S-K.

**Item 9C.** **DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS**

Not applicable.

[**Table of Contents**](#TOC)

#### PART III

#### Item 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE
The information required by this Item 10, with respect to our executive officers, is included in Part I of this Annual Report on Form 10-K under the heading "*Information about our Executive Officers*". The other information required by this Item 10 is incorporated by reference to the Company's 2026 Proxy Statement to be filed with the SEC within 120 days after fiscal year end.

Our board of directors has adopted a Code of Ethics (the "Code"), which applies to the board of directors, named executive officers, and all employees. The Code provides a statement of certain fundamental principles and key policies and procedures that govern the conduct of our business. The Code covers all major areas of professional conduct, including employment policies, conflicts of interest, intellectual property and the protection of confidential information, as well as strict adherence to all laws and regulations applicable to the conduct of our business. As required by the Sarbanes-Oxley Act of 2002, our Audit, Finance and Risk Committee has procedures to receive, retain, investigate and resolve complaints received regarding our accounting, internal accounting controls or auditing matters and to allow for the confidential and anonymous submission by employees of concerns regarding questionable accounting or auditing matters. The Code can be found in the Corporate Governance sub-section of the section entitled "Investors" on our website at *www.fuelcellenergy.com*. We intend to disclose any changes in, or waivers from, the Code by posting such information on the same website or by filing a Current Report on Form 8-K, in each case to the extent such disclosure is required by rules of the SEC or Nasdaq.

#### Item 11. EXECUTIVE COMPENSATION
Information required under this Item 11 is incorporated by reference to the Company's 2026 Proxy Statement to be filed with the SEC within 120 days after fiscal year end.

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| | |
|:---|:---|
| **Item 12.** | **SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS** |

---

Information required under this Item 12 is incorporated by reference to the Company's 2026 Proxy Statement to be filed with the SEC within 120 days after fiscal year end.

#### Equity Compensation Plan Information
The following table sets forth information with respect to the Company's equity compensation plans as of the end of the fiscal year ended October 31, 2025.

---

| | | | |
|:---|:---|:---|:---|
| <br>**Plan Category** | **Number of**<br>**Common**<br>**Shares to**<br>**be issued**<br>**upon**<br>**exercise of**<br>**outstanding**<br>**options and**<br>**rights** | <br>**Weighted-**<br>**average**<br>**exercise**<br>**price of**<br>**outstanding**<br>**options and**<br>**rights** | **Number of**<br>**securities**<br>**remaining**<br>**available for**<br>**future**<br>**issuance**<br>**under equity**<br>**compensation**<br>**plans** |
| *Equity compensation plans approved by security holders:* |  |  |  |
| Equity incentive plans <sup>(1)</sup> | 505 | $802.56 | 938706 |
| Employee stock purchase plan |  |  | 2124 |
| **Total** | 505 | $802.56 | 940830 |

---

&nbsp;&nbsp;&nbsp;&nbsp;(1) Includes the Company's 2018 Omnibus Incentive Plan, as amended and restated.

[**Table of Contents**](#TOC)

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| | |
|:---|:---|
| **Item 13.** | **CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE** |

---

Information required under this Item 13 is incorporated by reference to the Company's 2026 Proxy Statement to be filed with the SEC within 120 days after fiscal year end.

#### Item 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES
Information required under this Item 14 is incorporated by reference to the Company's 2026 Proxy Statement to be filed with the SEC within 120 days after fiscal year end.

[**Table of Contents**](#TOC)

#### PART IV

#### Item 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
The following documents are filed as part of this report:

1 Financial Statements — See Index to Consolidated Financial Statements in Item 8 of this Annual Report on Form 10-K.

2 Financial Statement Schedules — Supplemental schedules are not provided because of the absence of conditions under which they are required or because the required information is given in the financial statements or notes thereto.

3 Exhibits — The following exhibits are filed as part of, or incorporated by reference into, this Annual Report on Form 10-K.

#### EXHIBIT INDEX

---

| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| 3.1 | [Certificate of Incorporation of the Company, as amended, July 12, 1999 (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K dated September 21, 1999).](https://www.sec.gov/Archives/edgar/data/886128/000088612899000032/0000886128-99-000032.txt) |
| 3.2 | [Certificate of Amendment of the Certificate of Incorporation of the Company, dated November 21, 2000 (incorporated by reference to Exhibit 3.3 to the Company's Annual Report on Form 10-K dated January 12, 2017).](https://www.sec.gov/Archives/edgar/data/886128/000088612817000007/fcel-20161031xex33.htm) |
| 3.3 | [Certificate of Amendment of the Certificate of Incorporation of the Company, dated October 31, 2003 (incorporated by reference to Exhibit 3.1.1 to the Company's Current Report on Form 8-K dated November 3, 2003).](https://www.sec.gov/Archives/edgar/data/886128/000100329703000432/ex3-11.htm) |
| 3.4 | [Certificate of Designation for the Company's 5% Series B Cumulative Convertible Perpetual Preferred Stock (incorporated by reference to Exhibit 3.1 to the Company's Current Report Form 8-K, dated November 22, 2004).](https://www.sec.gov/Archives/edgar/data/886128/000114420404020159/v08931_ex3-1.htm) |
| 3.5 | [Amended Certificate of Designation of 5% Series B Cumulative Convertible Perpetual Preferred Stock, dated March 14, 2005 (incorporated by reference to Exhibit 3.4 to the Company's Annual Report on Form 10-K dated January 12, 2017).](https://www.sec.gov/Archives/edgar/data/886128/000088612817000007/fcel-20161031xex34.htm) |
| 3.6 | [Certificate of Amendment of the Certificate of Incorporation of the Company, dated April 8, 2011 (incorporated by reference to Exhibit 3.5 to the Company's Annual Report on Form 10-K dated January 12, 2017).](https://www.sec.gov/Archives/edgar/data/886128/000088612817000007/fcel-20161031xex35.htm) |
| 3.7 | [Certificate of Amendment of the Certificate of Incorporation of the Company, dated April 5, 2012 (incorporated by reference to Exhibit 3.6 to the Company's Annual Report on Form 10-K dated January 12, 2017).](https://www.sec.gov/Archives/edgar/data/886128/000088612817000007/fcel-20161031xex36.htm) |
| 3.8 | [Certificate of Amendment of the Certificate of Incorporation of the Company, dated December 3, 2015 (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K dated December 3, 2015).](https://www.sec.gov/Archives/edgar/data/886128/000088612815000023/exhibit3112-3x15.htm) |
| 3.9 | [Certificate of Amendment of the Certificate of Incorporation of the Company, dated April 18, 2016 (incorporated by reference to Exhibit 3.9 to the Company's Quarterly Report on Form 10-Q for the period ended April 30, 2016).](https://www.sec.gov/Archives/edgar/data/886128/000088612816000054/fcel-2016430xex39.htm) |
| 3.10 | [Certificate of Amendment of the Certificate of Incorporation of the Company, dated April 7, 2017 (incorporated by reference to Exhibit 3.10 to the Company's Quarterly Report on Form 10-Q for the period ended April 30, 2017).](https://www.sec.gov/Archives/edgar/data/886128/000156459017012328/fcel-ex310_243.htm) |
| 3.11 | [Certificate of Designations for the Company's Series C Convertible Preferred Stock (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K, dated September 5, 2017).](https://www.sec.gov/Archives/edgar/data/886128/000114420417047252/v474606_ex3-1.htm) |

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[**Table of Contents**](#TOC)

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| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| 3.12 | [Certificate of Amendment of the Certificate of Incorporation of the Company, dated December 14, 2017 (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K dated December 14, 2017).](https://www.sec.gov/Archives/edgar/data/886128/000114420417063979/tv481509_ex3-1.htm) |
| 3.13 | [Certificate of Designations, Preferences and Rights for the Company's Series D Convertible Preferred Stock (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K dated August 27, 2018).](https://www.sec.gov/Archives/edgar/data/886128/000114420418047136/tv501807_ex3-1.htm) |
| 3.14 | [Certificate of Amendment of the Certificate of Incorporation of FuelCell Energy, Inc., dated May 8, 2019 (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K filed on May 8, 2019).](https://www.sec.gov/Archives/edgar/data/886128/000156459019017009/fcel-ex31_9.htm) |
| 3.15 | [Certificate of Amendment of the Certificate of Incorporation of FuelCell Energy, Inc., dated May 11, 2020 (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K filed on May 12, 2020).](https://www.sec.gov/Archives/edgar/data/886128/000156459020024506/fcel-ex31_79.htm) |
| 3.16 | [Certificate of Amendment of the Certificate of Incorporation of FuelCell Energy, Inc. dated April 8, 2021 (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K/A filed on April 14, 2021).](https://www.sec.gov/Archives/edgar/data/886128/000156459021018838/fcel-ex31_7.htm) |
| 3.17 | [Certificate of Amendment of the Certificate of Incorporation of FuelCell Energy, Inc., dated October 11, 2023 (incorporated by reference to Exhibit 3.1 to the Company Current Report on Form 8-K filed on October 11, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023016365/fcel-20231010xex3d1.htm) |
| 3.18 | [Certificate of Amendment of the Certificate of Incorporation of FuelCell Energy, Inc., effective November 8, 2024 (incorporated by reference to Exhibit 3.1 to the Company Current Report on Form 8-K filed on November 7, 2024).](https://www.sec.gov/Archives/edgar/data/886128/000110465924115093/tm2427658d1_ex3-1.htm) |
| 3.19 | [Third Amended and Restated By-Laws of the Company, effective as of September 3, 2024 (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K filed on September 4, 2024).](https://www.sec.gov/Archives/edgar/data/886128/000110465924096939/tm2423319d1_ex3-1.htm) |
| &nbsp;&nbsp;&nbsp;&nbsp;4.1 | [Description of Securities Registered Under Section 12 of the Securities Exchange Act of 1934, as amended.](fcel-20251031xex4d1.htm) |
| 10.1 | [\*\*Alliance Agreement between FuelCell Energy, Inc. and POSCO Energy, dated as of February 7, 2007 (incorporated by reference to Exhibit 10.1 to the Company's Form 10-Q/A for the period ended January 31, 2009).](https://www.sec.gov/Archives/edgar/data/886128/000095012309043008/c90072exv10w1.htm) |
| 10.2 | [\*\*Technology Transfer, License and Distribution Agreement between FuelCell Energy, Inc. and POSCO Energy, dated as of February 7, 2007 (incorporated by reference to Exhibit 10.2 to the Company's Form 10-Q/A for the period ended January 31, 2009).](https://www.sec.gov/Archives/edgar/data/886128/000095012309043008/c90072exv10w2.htm) |
| 10.3 | [\*\*Stack Technology Transfer and License Agreement dated as of October 27, 2009, by and between FuelCell Energy, Inc. and POSCO Energy (incorporated by reference to Exhibit 10.1 of the Company's Current Report Form 8-K, dated October 27, 2009).](https://www.sec.gov/Archives/edgar/data/886128/000095012309056313/c91671exv10w1.htm) |
| 10.4 | [Lease agreement, dated March 8, 2000, between the Company and Technology Park Associates, L.L.C. (incorporated by reference to Exhibit 10.55 to the Company's Quarterly Report on Form 10-Q for the period ended April 30, 2000).](https://www.sec.gov/Archives/edgar/data/886128/000104264500000239/0001042645-00-000239-0002.txt) |
| 10.5 | [\*FuelCell Energy, Inc. Amended and Restated 2010 Equity Incentive Plan (incorporated by reference to Exhibit 10.59 to the Company's Annual Report on Form 10-K for the period ended October 31, 2015).](https://www.sec.gov/Archives/edgar/data/886128/000088612816000032/fcel-20151031xex1059.htm) |
| 10.6 | [Letter agreement, dated September 28, 2015, between the Company and Technology Park Associates, L.L.C. exercising the extension option per the terms of the Lease Agreement, dated March 8, 2000, between the Company and Technology Park Associates, L.L.C. (incorporated by reference to Exhibit 10.60 to the Company's Annual Report on Form 10-K for the period ended October 31, 2015).](https://www.sec.gov/Archives/edgar/data/886128/000088612816000032/fcel-20151031xex1060.htm) |
| 10.7 | [Cell Technology Transfer and License Agreement dated October 31, 2012 by and between the Company and POSCO Energy, Co., Ltd. (incorporated by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K/A dated as of October 31, 2012 and filed on January 7, 2013).](https://www.sec.gov/Archives/edgar/data/886128/000119312513005321/d461156dex102.htm) |

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| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| 10.8 | [Amendment to Technology Transfer Distribution and Licensing Agreement dated as of February 7, 2007 and the Stack Technology Transfer License Agreement dated as of October 27, 2009, each by and between the Company and POSCO Energy, Co., Ltd. (incorporated by reference to Exhibit 10.3 to the Company's Current Report on Form 8-K dated as of October 31, 2012).](https://www.sec.gov/Archives/edgar/data/886128/000088612812000009/fcel-20121106xex103.htm) |
| 10.9 | [Loan Agreement, dated as of March 5, 2013, between Clean Energy Finance and Investment Authority, as Lender, and the Company, as Borrower (incorporated by reference to Exhibit 10.69 to the Company's Quarterly Report on Form 10-Q for the period ended January 31, 2013).](https://www.sec.gov/Archives/edgar/data/886128/000088612813000006/fcel-2013131xex1069.htm) |
| 10.10 | [Security Agreement, dated March 5, 2013, by the Company in favor of the Clean Energy Finance and Investment Authority (incorporated by reference to Exhibit 10.70 to the Company's Quarterly Report on Form 10-Q for the quarter ended January 31, 2013).](https://www.sec.gov/Archives/edgar/data/886128/000088612813000006/fcel-2013131xex1070.htm) |
| 10.11 | [Assistance Agreement, dated November 19, 2015, by and between the State of Connecticut Acting by the Department of Economic Community and Development and the Company (incorporated by reference to Exhibit 10.84 to the Company's Annual Report on Form 10-K for the period ended October 31, 2015).](https://www.sec.gov/Archives/edgar/data/886128/000088612816000032/fcel-20151031xex1084.htm) |
| 10.12 | [Phase 1 Promissory Note, dated November 19, 2015, between the Company and the State of Connecticut Acting by and through the Department of Economic Community and Development (incorporated by reference to Exhibit 10.85 to the Company's Annual Report on Form 10-K for the period ended October 31, 2015).](https://www.sec.gov/Archives/edgar/data/886128/000088612816000032/fcel-20151031xex1085.htm) |
| 10.13 | [Amendment to Alliance Agreement, dated as of October 10, 2016, by and between the Company and POSCO Energy Co., Ltd. (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K dated October 10, 2016).](https://www.sec.gov/Archives/edgar/data/886128/000088612816000068/exhibit10110-10x16.htm) |
| 10.14 | [Amendment to Technology Transfer, Distribution and Licensing Agreement, dated as of October 10, 2016, by and between the Company and POSCO Energy Co., Ltd. (incorporated by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K dated October 10, 2016).](https://www.sec.gov/Archives/edgar/data/886128/000088612816000068/exhibit10210-10x16.htm) |
| 10.15 | [Amendment to Stack Technology Transfer and License Agreement, dated as of October 10, 2016, by and between the Company and POSCO Energy Co., Ltd. (incorporated by reference to Exhibit 10.3 to the Company's Current Report on Form 8-K dated October 10, 2016).](https://www.sec.gov/Archives/edgar/data/886128/000088612816000068/exhibit10310-10x16.htm) |
| 10.16 | [First Amendment to Assistance Agreement, dated as of April 3, 2017, and approved by the State of Connecticut, Office of the Attorney General on April 17, 2017 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K dated April 17, 2017).](https://www.sec.gov/Archives/edgar/data/886128/000119380517000682/e616061_ex10-1.htm) |
| 10.17 | [\*Form of Restricted Stock Award Agreement (U.S. Employees) (incorporated by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K dated April 5, 2018).](https://www.sec.gov/Archives/edgar/data/886128/000156459018007776/fcel-ex102_25.htm) |
| 10.18 | [\*Form of Restricted Stock Unit Award Agreement (U.S. Employees) (incorporated by reference to Exhibit 10.3 to the Company's Current Report on Form 8-K dated April 5, 2018).](https://www.sec.gov/Archives/edgar/data/886128/000156459018007776/fcel-ex103_26.htm) |
| 10.19 | [\*Form of Restricted Stock Unit Award Agreement (Non-Employee Directors) (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K dated November 8, 2018).](https://www.sec.gov/Archives/edgar/data/886128/000156459018029346/fcel-ex101_8.htm) |
| 10.20 | [\*Form of Option Award Agreement (Non-Employee Directors) (incorporated by reference to Exhibit 10.4 to the Company's Current Report on Form 8-K dated April 5, 2018).](https://www.sec.gov/Archives/edgar/data/886128/000156459018007776/fcel-ex104_27.htm) |
| 10.21 | [Second Amendment to Assistance Agreement, dated as of January 24, 2019, and approved by the State of Connecticut, Office of the Attorney General on January 28, 2019 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on February 5, 2019).](https://www.sec.gov/Archives/edgar/data/886128/000156459019002020/fcel-ex101_6.htm) |
| 10.22 | [License Agreement, effective as of June 11, 2019, between ExxonMobil Research and Engineering Company and FuelCell Energy, Inc. (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on June 12, 2019).](https://www.sec.gov/Archives/edgar/data/886128/000114420419030657/tv523415_ex10-1.htm) |
| 10.23 | [\*Employment Agreement, dated as of July 30, 2019, by and between FuelCell Energy, Inc. and Michael Lisowski (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on July 30, 2019).](https://www.sec.gov/Archives/edgar/data/886128/000156459019027055/fcel-ex101_9.htm) |

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[**Table of Contents**](#TOC)

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| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| 10.24 | [Joint Development Agreement, effective October 31, 2019, by and between FuelCell Energy, Inc. and ExxonMobil Research and Engineering Company (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on November 6, 2019).](https://www.sec.gov/Archives/edgar/data/886128/000156459019040696/fcel-ex101_10.htm) |
| 10.25 | [Amendment to Loan Agreement, dated as of December 19, 2019, by and among FuelCell Energy, Inc. and Connecticut Green Bank (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on December 20, 2019).](https://www.sec.gov/Archives/edgar/data/886128/000110465919074667/tm19267121_ex10-1.htm) |
| 10.26 | [Purchase and Sale Agreement, dated February 11, 2020, by and between Central CA Fuel Cell 2, LLC and Crestmark Equipment Finance (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on February 13, 2020).](https://www.sec.gov/Archives/edgar/data/886128/000156459020004587/fcel-ex101_23.htm) |
| 10.27 | [Equipment Lease Agreement, dated February 11, 2020, by and between Central CA Fuel Cell 2, LLC and Crestmark Equipment Finance (incorporated by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K filed on February 13, 2020).](https://www.sec.gov/Archives/edgar/data/886128/000156459020004587/fcel-ex102_22.htm) |
| 10.28 | [Assignment Agreement, dated February 11, 2020, by Central CA Fuel Cell 2, LLC in favor of Crestmark Equipment Finance (incorporated by reference to Exhibit 10.3 to the Company's Current Report on Form 8-K filed on February 13, 2020).](https://www.sec.gov/Archives/edgar/data/886128/000156459020004587/fcel-ex103_45.htm) |
| 10.29 | [Pledge Agreement, dated February 11, 2020, by and between FuelCell Energy Finance, LLC and Crestmark Equipment Finance (incorporated by reference to Exhibit 10.4 to the Company's Current Report on Form 8-K filed on February 13, 2020).](https://www.sec.gov/Archives/edgar/data/886128/000156459020004587/fcel-ex104_43.htm) |
| 10.30 | [Guaranty Agreement, dated February 11, 2020, by FuelCell Energy, Inc. in favor of Crestmark Equipment Finance (incorporated by reference to Exhibit 10.5 to the Company's Current Report on Form 8-K filed on February 13, 2020).](https://www.sec.gov/Archives/edgar/data/886128/000156459020004587/fcel-ex105_44.htm) |
| 10.31 | [Technology License and Access Agreement for Tulare BioMAT Fuel Cell Power Plant, dated February 11, 2020, by and among Crestmark Equipment Finance, Central CA Fuel Cell 2, LLC and FuelCell Energy, Inc. (incorporated by reference to Exhibit 10.6 to the Company's Current Report on Form 8-K filed on February 13, 2020).](https://www.sec.gov/Archives/edgar/data/886128/000156459020004587/fcel-ex106_21.htm) |
| 10.32 | [\*FuelCell Energy, Inc. Long Term Incentive Plan as approved August 24, 2020 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on August 24, 2020).](https://www.sec.gov/Archives/edgar/data/886128/000156459020041061/fcel-ex101_8.htm) |
| 10.33 | [\*Form of FuelCell Energy, Inc. 2018 Omnibus Incentive Plan Performance Share Award (Relative TSR) (incorporated by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K filed on August 24, 2020).](https://www.sec.gov/Archives/edgar/data/886128/000156459020041061/fcel-ex102_9.htm) |
| 10.34 | [\*Form of FuelCell Energy, Inc. 2018 Omnibus Incentive Plan Performance Share Award (Absolute TSR) (incorporated by reference to Exhibit 10.3 to the Company's Current Report on Form 8-K filed on August 24, 2020).](https://www.sec.gov/Archives/edgar/data/886128/000156459020041061/fcel-ex103_10.htm) |
| 10.35 | [\*FuelCell Energy, Inc. Fiscal Year 2021 Long Term Incentive Plan, as approved November 24, 2020 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on November 27, 2020).](https://www.sec.gov/Archives/edgar/data/886128/000156459020055317/fcel-ex101_7.htm) |
| 10.36 | [\*Form of FuelCell Energy, Inc. 2018 Omnibus Incentive Plan Relative TSR Performance Share Award Agreement (incorporated by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K filed on November 27, 2020).](https://www.sec.gov/Archives/edgar/data/886128/000156459020055317/fcel-ex102_8.htm) |
| 10.37 | [\*Form of FuelCell Energy, Inc. 2018 Omnibus Incentive Plan Absolute TSR Performance Share Award Agreement (incorporated by reference to Exhibit 10.3 to the Company's Current Report on Form 8-K filed on November 27, 2020).](https://www.sec.gov/Archives/edgar/data/886128/000156459020055317/fcel-ex103_9.htm) |
| 10.38 | [Amendment No. 1 to Joint Development Agreement between FuelCell Energy, Inc. and ExxonMobil Research and Engineering Company, fully executed on October 29, 2021 and effective as of October 31, 2021 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on November 2, 2021).](https://www.sec.gov/Archives/edgar/data/886128/000155837021013995/fcel-20211029xex10d1.htm) |

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[**Table of Contents**](#TOC)

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| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| 10.39 | [Letter Agreement, dated as of October 28, 2021 and effective as of October 29, 2021, between FuelCell Energy, Inc. and ExxonMobil Research and Engineering Company (incorporated by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K filed on November 2, 2021).](https://www.sec.gov/Archives/edgar/data/886128/000155837021013995/fcel-20211029xex10d2.htm) |
| 10.40 | [Settlement Agreement, dated December 20, 2021, by and between FuelCell Energy, Inc., POSCO Energy Co., Ltd., and Korea Fuel Cell Co., Ltd. (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on December 27, 2021).](https://www.sec.gov/Archives/edgar/data/886128/000110465921153408/tm2136205d1_ex10-1.htm) |
| 10.41 | \*[Employment Agreement, dated as of March 31, 2022 and effective as of April 18, 2022, by and between FuelCell Energy, Inc. and Mark Feasel (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on April 5, 2022).](https://www.sec.gov/Archives/edgar/data/886128/000155837022005083/fcel-20220331xex10d1.htm) |
| 10.42 | [Amendment No. 2 to Joint Development Agreement between FuelCell Energy, Inc. and ExxonMobil Technology and Engineering Company, effective as of April 30, 2022 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on May 5, 2022)](https://www.sec.gov/Archives/edgar/data/886128/000155837022007244/fcel-20220429xex10d1.htm). |
| 10.43 | [Open Market Sale Agreement<sup>SM</sup> among FuelCell Energy, Inc., Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canaccord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and Loop Capital Markets LLC, dated July 12, 2022 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on July 12, 2022).](https://www.sec.gov/Archives/edgar/data/0000886128/000110465922079247/tm2220757d1_ex10-1.htm) |
| 10.44 | [Amendment No. 3 to Joint Development Agreement between FuelCell Energy, Inc. and ExxonMobil Technology and Engineering Company, fully executed on December 19, 2022 and effective as of December 1, 2022 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on December 19, 2022).](https://www.sec.gov/Archives/edgar/data/886128/000110465922128304/tm2232995d1_ex10-1.htm) |
| 10.45 | [Lease, dated May 20, 2005, between Westpen Properties Ltd. and Versa Power Systems Ltd. (incorporated by reference to Exhibit 10.2 to the Company's Quarterly Report on Form 10-Q filed on March 9, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023003256/fcel-20230131xex10d2.htm) |
| 10.46 | [Lease Amending Agreement, dated April 20, 2006, between Westpen Properties Ltd. and Versa Power Systems Ltd. (incorporated by reference to Exhibit 10.3 to the Company's Quarterly Report on Form 10-Q filed on March 9, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023003256/fcel-20230131xex10d3.htm) |
| 10.47 | [Lease Renewal Agreement, dated November 11, 2010, between 52<sup>nd</sup> Street Business Centre LP, by its General Partner, 52<sup>nd</sup> Street Business Centre GP Inc., and Versa Power Systems Ltd. (incorporated by reference to Exhibit 10.4 to the Company's Quarterly Report on Form 10-Q filed on March 9, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023003256/fcel-20230131xex10d4.htm) |
| 10.48 | [Lease Extension and Amending Agreement, dated October 29, 2013, between 52<sup>nd</sup> Street Business Centre LP, by its General Partner, 52<sup>nd</sup> Street Business Centre GP Inc., and Versa Power Systems Ltd. (incorporated by reference to Exhibit 10.5 to the Company's Quarterly Report on Form 10-Q filed on March 9, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023003256/fcel-20230131xex10d5.htm) |
| 10.49 | [Lease Extension Agreement, dated November 9, 2016, between 52<sup>nd</sup> Street Business Centre LP, by its General Partner, 52<sup>nd</sup> Street Business Centre GP Inc., and Versa Power Systems Ltd. (incorporated by reference to Exhibit 10.6 to the Company's Quarterly Report on Form 10-Q filed on March 9, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023003256/fcel-20230131xex10d6.htm) |
| 10.50 | [Lease Extension Agreement, dated January 10, 2020, between 52<sup>nd</sup> Street Business Centre LP, by its General Partner, 52<sup>nd</sup> Street Business Centre GP Inc., and Versa Power Systems Ltd. (incorporated by reference to Exhibit 10.7 to the Company's Quarterly Report on Form 10-Q filed on March 9, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023003256/fcel-20230131xex10d7.htm) |
| 10.51 | [Lease Expansion, Extension and Amending Agreement, dated January 5, 2023, between 52<sup>nd</sup> Street Business Centre LP, by its General Partner, 52<sup>nd</sup> Street Business Centre GP Inc., and Versa Power Systems Ltd. (incorporated by reference to Exhibit 10.8 to the Company's Quarterly Report on Form 10-Q filed on March 9, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023003256/fcel-20230131xex10d8.htm) |
| 10.52 | [Lease Expansion and Amending Agreement – Short Term, dated February 20, 2023, between 52<sup>nd</sup> Street Business Centre LP, by its General Partner, 52<sup>nd</sup> Street Business Centre GP Inc., and Versa Power Systems Ltd. (incorporated by reference to Exhibit 10.9 to the Company's Quarterly Report on Form 10-Q filed on March 9, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023003256/fcel-20230131xex10d9.htm) |

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[**Table of Contents**](#TOC)

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| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| 10.53 | [Letter Agreement between ExxonMobil Technology and Engineering Company and FuelCell Energy, Inc. dated May 8, 2023 (incorporated by reference to Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q filed on June 8, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023010890/fcel-20230430xex10d1.htm) |
| 10.54 | [FuelCell Energy, Inc. 2018 Employee Stock Purchase Plan, as amended and restated effective as of May 22, 2023 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K dated May 23, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023010374/fcel-20230522xex10d1.htm) |
| 10.55 | [FuelCell Energy, Inc. Fifth Amended and Restated 2018 Omnibus Incentive Plan, effective as of April 17, 2025 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on April 21, 2025).](https://www.sec.gov/Archives/edgar/data/886128/000155837025005071/fcel-20250417xex10d1.htm) |
| 10.56 | [Financing Agreement, dated May 19, 2023, among FuelCell Energy Opco Finance 1, LLC (as Borrower), the Lenders party thereto, the LC Issuing Banks party thereto, and Investec Bank plc (as Administrative Agent and Collateral Agent) (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed May 25, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000110465923064371/tm2316597d1_ex10-1.htm) |
| 10.57 | [Omnibus Guarantee, Pledge and Security Agreement, dated May 19, 2023, made by FuelCell Energy Finance, LLC (as Pledgor), FuelCell Energy Opco Finance 1, LLC (as Borrower), and Bridgeport Fuel Cell, LLC, Groton Fuel Cell 1, LLC, Riverside Fuel Cell, LLC, SRJFC, LLC, FuelCell YT HoldCo, LLC, and New Britain Renewable Energy, LLC (as Subsidiary Guarantors) in favor of Investec Bank plc (as Collateral Agent) (incorporated by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K filed May 25, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000110465923064371/tm2316597d1_ex10-2.htm) |
| 10.58 | [Depositary Agreement, dated May 19, 2023, by and among FuelCell Energy Opco Finance 1, LLC (as Borrower), Investec Bank plc (as Collateral Agent and Administrative Agent), and Liberty Bank (as Depositary Agent) (incorporated by reference to Exhibit 10.3 to the Company's Current Report on Form 8-K filed May 25, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000110465923064371/tm2316597d1_ex10-3.htm) |
| 10.59 | [ISDA 2002 Master Agreement, dated May 19, 2023, between Investec Bank plc and FuelCell Energy Opco Finance 1, LLC (incorporated by reference to Exhibit 10.4 to the Company's Current Report on Form 8-K filed May 25, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000110465923064371/tm2316597d1_ex10-4.htm) |
| 10.60 | [ISDA Schedule to the 2002 Master Agreement, dated May 19, 2023, between Investec Bank plc and FuelCell Energy Opco Finance 1, LLC (incorporated by reference to Exhibit 10.5 to the Company's Current Report on Form 8-K filed May 25, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000110465923064371/tm2316597d1_ex10-5.htm) |
| 10.61 | [ISDA 2002 Master Agreement, dated May 19, 2023, between Bank of Montreal and FuelCell Energy Opco Finance 1, LLC (incorporated by reference to Exhibit 10.6 to the Company's Current Report on Form 8-K filed May 25, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000110465923064371/tm2316597d1_ex10-6.htm) |
| 10.62 | [ISDA Schedule to the 2002 Master Agreement, dated May 19, 2023, between Bank of Montreal and FuelCell Energy Opco Finance 1, LLC (incorporated by reference to Exhibit 10.7 to the Company's Current Report on Form 8-K filed May 25, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000110465923064371/tm2316597d1_ex10-7.htm) |
| 10.63 | [Third Amendment to Assistance Agreement by and between the State of Connecticut Acting by the Department of Economic and Community Development, and FuelCell Energy, Inc., effective May 24, 2023 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed May 30, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023010617/fcel-20230524xex10d1.htm) |
| 10.64 | [Amendment No. 1 to Financing Agreement, dated as of August 11, 2023, among FuelCell Energy Opco Finance 1, LLC (as Borrower), Investec Bank plc (as Administrative Agent and Lender), Liberty Bank (as Lender), Bank of Montreal (as Lender), Amalgamated Bank (as Lender), and Connecticut Green Bank (as Lender) (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed August 17, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023015077/fcel-20230814xex10d1.htm) |
| 10.65 | [Credit Agreement, dated August 18, 2023, among FuelCell Energy Finance Holdco, LLC (as Borrower), Liberty Bank (as Administrative Agent and Lead Arranger), and the Lenders party thereto (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed August 24, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023015262/fcel-20230818xex10d1.htm) |

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[**Table of Contents**](#TOC)

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| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| 10.66 | [Credit Agreement, dated August 18, 2023, among FuelCell Energy Finance Holdco, LLC (as Borrower), Connecticut Green Bank (as Administrative Agent), and the Lender party thereto (incorporated by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K filed August 24, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023015262/fcel-20230818xex10d2.htm) |
| 10.67 | [Security Agreement, dated August 18, 2023, by FuelCell Energy Finance Holdco, LLC for the benefit of Liberty Bank (incorporated by reference to Exhibit 10.3 to the Company's Current Report on Form 8-K filed August 24, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023015262/fcel-20230818xex10d3.htm) |
| 10.68 | [Pledge and Security Agreement dated August 19, 2023, by FuelCell Energy Finance Holdco, LLC for the benefit of Liberty Bank (incorporated by reference to Exhibit 10.4 to the Company's Current Report on Form 8-K filed August 24, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023015262/fcel-20230818xex10d4.htm) |
| 10.69 | [Deposit Account Security and Pledge Agreement, dated August 18, 2023, among FuelCell Energy Finance Holdco, LLC, Groton Station Fuel Cell, LLC, and Liberty Bank (incorporated by reference to Exhibit 10.5 to the Company's Current Report on Form 8-K filed August 24, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023015262/fcel-20230818xex10d5.htm) |
| 10.70 | [Security Agreement, dated, August 18, 2023, by FuelCell Energy Finance Holdco, LLC for the benefit of Connecticut Green Bank (incorporated by reference to Exhibit 10.6 to the Company's Current Report on Form 8-K filed August 24, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023015262/fcel-20230818xex10d6.htm) |
| 10.71 | [Pledge and Security Agreement, dated August 18, 2023, by FuelCell Energy Finance Holdco, LLC for the benefit of Connecticut Green Bank (incorporated by reference to Exhibit 10.7 to the Company's Current Report on Form 8-K filed August 24, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023015262/fcel-20230818xex10d7.htm) |
| 10.72 | [Deposit Account Security and Pledge Agreement, dated August 18, 2023, among FuelCell Energy Finance Holdco, LLC, Groton Station Fuel Cell, LLC, and Connecticut Green Bank (incorporated by reference to Exhibit 10.8 to the Company's Current Report on Form 8-K filed August 24, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023015262/fcel-20230818xex10d8.htm) |
| 10.73 | [Subordination Agreement, dated August 18, 2023, among Connecticut Green Bank, Liberty Bank, and the Senior Lenders party thereto (incorporated by reference to Exhibit 10.9 to the Company's Current Report on Form 8-K filed August 24, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023015262/fcel-20230818xex10d9.htm) |
| 10.74 | [Interparty Agreement, dated August 18, 2023, among East West Bank, FuelCell Energy Finance Holdco, LLC, Amalgamated Bank, Liberty Bank, and Connecticut Green Bank (incorporated by reference to Exhibit 10.10 to the Company's Current Report on Form 8-K filed August 24, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023015262/fcel-20230818xex10d10.htm) |
| 10.75 | [Limited Guaranty and Subordination Agreement, dated August 18, 2023, by FuelCell Energy, Inc. for the benefit of Liberty Bank (incorporated by reference to Exhibit 10.11 to the Company's Current Report on Form 8-K filed August 24, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023015262/fcel-20230818xex10d11.htm)  |
| 10.76 | [Limited Guaranty and Subordination Agreement, dated August 18, 2023, by FuelCell Energy, Inc. for the benefit of Connecticut Green Bank (incorporated by reference to Exhibit 10.12 to the Company's Current Report on Form 8-K filed August 24, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023015262/fcel-20230818xex10d12.htm) |
| 10.77 | [Amendment No. 4 to Joint Development Agreement between FuelCell Energy, Inc. and ExxonMobil Technology and Engineering Company, executed on August 25, 2023 and effective as of August 31, 2023 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed August 28, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023015279/fcel-20230825xex10d1.htm) |
| 10.78 | [Lease Amending Agreement, dated September 25, 2023, between 52<sup>nd</sup> Street Business Centre LP, by its General Partner, 52<sup>nd</sup> Street Business Centre GP Inc., and Versa Power Systems Ltd. (incorporated by reference to Exhibit 10.87 to the Company's Annual Report on Form 10-K for the period ended October 31, 2023, filed on December 19, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023019892/fcel-20231031xex10d87.htm) |
| 10.79 | [Amendment No. 1 to Credit Agreement, dated as of October 23, 2023, between Connecticut Green Bank (as administrative agent and lender party) and FuelCell Energy Finance HoldCo, LLC. (incorporated by reference to Exhibit 10.88 to the Company's Annual Report on Form 10-K for the period ended October 31, 2023, filed on December 19, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023019892/fcel-20231031xex10d88.htm) |
| 10.80 | \*[Form of FuelCell Energy, Inc. 2018 Omnibus Incentive Plan Performance Share Award Agreement (Relative TSR – Contingent Award) (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed December 15, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000110465923126455/tm2332894d1_ex10-1.htm) |

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[**Table of Contents**](#TOC)

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| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| 10.81 | [Amendment No. 2 to Financing Agreement, dated as of January 2, 2024, among FuelCell Energy Opco Finance 1, LLC (as Borrower), Investec Bank plc (as Administrative Agent and Lender), Liberty Bank (as Lender), Bank of Montreal (as Lender), Amalgamated Bank (as Lender), and Connecticut Green Bank (as Lender) (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on January 4, 2024).](https://www.sec.gov/Archives/edgar/data/886128/000155837024000067/fcel-20240102xex10d1.htm) |
| 10.82 | [Amendment No. 3 to Financing Agreement, dated as of April 29, 2024, between FuelCell Energy Opco Finance 1, LLC (as Borrower), Investec Bank plc (as Administrative Agent and Lender), Liberty Bank (as Lender), Bank of Montreal (as Lender), Amalgamated Bank (as Lender), and Connecticut Green Bank (as Lender) (incorporated by reference to Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q filed on June 10, 2024).](https://www.sec.gov/Archives/edgar/data/886128/000155837024009026/fcel-20240430xex10d1.htm) |
| 10.83 | [Amendment to Credit Agreement, dated May 2, 2024, between FuelCell Energy Finance Holdco, LLC (as Borrower) and Liberty Bank (as Administrative Agent and Lender) (incorporated by reference to Exhibit 10.2 to the Company's Quarterly Report on Form 10-Q filed on June 10, 2024).](https://www.sec.gov/Archives/edgar/data/886128/000155837024009026/fcel-20240430xex10d2.htm) |
| 10.84 | [Amendment No. 2 to Credit Agreement, dated May 2, 2024, among FuelCell Energy Finance Holdco, LLC (as Borrower) and Connecticut Green Bank (as Administrative Agent and Lender) (incorporated by reference to Exhibit 10.3 to the Company's Quarterly Report on Form 10-Q filed on June 10, 2024).](https://www.sec.gov/Archives/edgar/data/886128/000155837024009026/fcel-20240430xex10d3.htm) |
| 10.85 | [Amendment No. 5 to Joint Development Agreement between FuelCell Energy, Inc. and ExxonMobil Technology and Engineering Company, executed and effective as of March 31, 2024 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K, filed on April 4, 2024).](https://www.sec.gov/Archives/edgar/data/886128/000110465924043389/tm2410963d1_ex10-1.htm) |
| 10.86 | [Amendment No. 1 to Open Market Sale Agreement among FuelCell Energy, Inc., Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canaccord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and Loop Capital Markets LLC, dated April 10, 2024 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on April 10, 2024).](https://www.sec.gov/Archives/edgar/data/886128/000110465924045894/tm2411398d1_ex10-1.htm) |
| 10.87 | [Lease Expansion and Amending Agreement, dated August 2, 2024, between 52nd Street Business Centre, LP, by its General Partner, 52nd Street Business Centre GP Inc., and Versa Power Systems Ltd. (incorporated by reference to Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q filed on September 5, 2024).](https://www.sec.gov/Archives/edgar/data/886128/000155837024012598/fcel-20240731xex10d1.htm) |
| 10.88 | [Amendment No. 2 to Open Market Sale Agreement among FuelCell Energy, Inc., Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canaccord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and Loop Capital Markets LLC, dated December 27, 2024 (incorporated by reference to Exhibit 10.98 to the Company's Annual Report on Form 10-K for the period ended October 31, 2024, filed on December 27, 2024).](https://www.sec.gov/Archives/edgar/data/886128/000155837024016497/fcel-20241031xex10d98.htm)  |
| 10.89 | \*[Form of FuelCell Energy, Inc. 2018 Omnibus Incentive Plan Performance Share Award Agreement – Contingent Cash Settlement (Relative TSR) (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on January 6, 2025).](https://www.sec.gov/Archives/edgar/data/886128/000155837025000037/fcel-20241230xex10d1.htm) |
| 10.90 | \*[Employment Separation Agreement, dated as of April 28, 2025, by and between FuelCell Energy, Inc. and Mark Feasel (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on April 29, 2025).](https://www.sec.gov/Archives/edgar/data/886128/000155837025005823/fcel-20250423xex10d1.htm) |
| 10.91 | \*[Amended and Restated Employment Agreement, dated as of June 4, 2025, by and between FuelCell Energy, Inc. and Jason B. Few (incorporated by reference to Exhibit 10.4 to the Company's Quarterly Report on Form 10-Q filed on June 6, 2025).](https://www.sec.gov/Archives/edgar/data/886128/000155837025008463/fcel-20250430xex10d4.htm) |
| 10.92 | \*[Amended and Restated Employment Agreement, dated as of June 4, 2025, by and between FuelCell Energy, Inc. and Michael S. Bishop (incorporated by reference to Exhibit 10.5 to the Company's Quarterly Report on Form 10-Q filed on June 6, 2025).](https://www.sec.gov/Archives/edgar/data/886128/000155837025008463/fcel-20250430xex10d5.htm) |
| 10.93 | \*[Amended and Restated Employment Agreement, dated as of June 4, 2025, by and between FuelCell Energy, Inc. and Joshua Dolger (incorporated by reference to Exhibit 10.6 to the Company's Quarterly Report on Form 10-Q filed on June 6, 2025).](https://www.sec.gov/Archives/edgar/data/886128/000155837025008463/fcel-20250430xex10d6.htm) |

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[**Table of Contents**](#TOC)

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| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| 10.94 | \*[Amended and Restated Employment Agreement, dated as of June 4, 2025, by and between FuelCell Energy, Inc. and Shankar Achanta (incorporated by reference to Exhibit 10.8 to the Company's Quarterly Report on Form 10-Q filed on June 6, 2025).](https://www.sec.gov/Archives/edgar/data/886128/000155837025008463/fcel-20250430xex10d8.htm) |
| 10.95 | \*[Employment Separation Agreement, dated as of June 13, 2025, by and between FuelCell Energy, Inc. and Michael Lisowski (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on June 13, 2025).](https://www.sec.gov/Archives/edgar/data/886128/000155837025008622/fcel-20250613xex10d1.htm) |
| 10.96 | \*[Form of FuelCell Energy, Inc. 2018 Omnibus Incentive Plan Performance Share Award Agreement – Contingent Cash Settlement (Absolute TSR) (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on December 1, 2025).](https://www.sec.gov/Archives/edgar/data/886128/000110465925117380/fcel-20251128xex10d1.htm) |
| 10.97 | \*[Form of FuelCell Energy, Inc. 2018 Omnibus Incentive Plan Restricted Stock Unit Award Agreement -- Contingent Cash Settlement (incorporated by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K filed on December 1, 2025).](https://www.sec.gov/Archives/edgar/data/886128/000110465925117380/fcel-20251128xex10d2.htm) |
| 10.98 | [Waiver and Amendment No. 4 to Financing Agreement, dated as of April 29, 2024, between FuelCell Energy Opco Finance 1, LLC (as Borrower), Investec Bank plc (as Administrative Agent and Lender), Liberty Bank (as Lender), Bank of Montreal (as Lender), Amalgamated Bank (as Lender), and Connecticut Green Bank (as Lender).](fcel-20251031xex10d98.htm)  |
| 19 | [FuelCell Energy, Inc. Insider Trading Policy (incorporated by reference to Exhibit 19 to the Company's Annual Report on Form 10-K for the period ended October 31, 2024, filed on December 27, 2024).](https://www.sec.gov/Archives/edgar/data/886128/000155837024016497/fcel-20241031xex19.htm)<br>|
| 21 | [Subsidiaries of the Registrant](fcel-20251031xex21.htm) |
| 23.1 | [Consent of Independent Registered Public Accounting Firm](fcel-20251031xex23d1.htm) |
| 31.1 | [Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes Oxley Act of 2002](fcel-20251031xex31d1.htm) |
| 31.2 | [Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes Oxley Act of 2002](fcel-20251031xex31d2.htm) |
| 32.1 | [Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes Oxley Act of 2002](fcel-20251031xex32d1.htm) |
| 32.2 | [Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes Oxley Act of 2002](fcel-20251031xex32d2.htm) |
| 97 | [FuelCell Energy, Inc. Compensation Recovery Policy (incorporated by reference to Exhibit 97 to the Company's Annual Report on Form 10-K for the period ended October 31, 2023, filed on December 19, 2023).](https://www.sec.gov/Archives/edgar/data/886128/000155837023019892/fcel-20231031xex97.htm) |
| 101.INS# | Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document. |
| 101.SCH# | Inline XBRL Schema Document |
| 101.CAL# | Inline XBRL Calculation Linkbase Document |
| 101.LAB# | Inline XBRL Labels Linkbase Document |
| 101.PRE# | Inline XBRL Presentation Linkbase Document |
| 101.DEF# | Inline XBRL Definition Linkbase Document |
| 104 | Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101) |

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\* Management Contract or Compensatory Plan or Arrangement

\*\* Confidential Treatment has been granted for portions of this document

# Filed with this Annual Report on Form 10-K are the following documents formatted in iXBRL (Inline Extensible Business Reporting Language): (i) the Consolidated Balance Sheets as of October 31, 2025 and 2024, (ii) the Consolidated Statements of Operations and Comprehensive Loss for the fiscal years ended October 31, 2025, 2024 and 2023, (iii) the Consolidated Statements of Changes in Equity for the fiscal years ended October 31, 2025, 2024 and 2023, (iv) the Consolidated Statements of Cash Flows for the fiscal years ended October 31, 2025, 2024 and 

[**Table of Contents**](#TOC)

2023, (v) Notes to the Consolidated Financial Statements and (vi) the information included in Part I, Item 1C and Part II, Item 9B(b).

#### Item 16. FORM 10-K SUMMARY
Not applicable.

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#### SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

#### FUELCELL ENERGY, INC.

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| | | |
|:---|:---|:---|
| /s/ Jason B. Few | Dated: | December 18, 2025 |
| Jason B. Few |  |  |
| President and Chief Executive Officer |  |  |

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Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

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| | | |
|:---|:---|:---|
| **Signature** | **Capacity** | **Date** |
| /s/ Jason B. Few<br>Jason B. Few | President, Chief Executive Officer and Director (Principal Executive Officer) | December 18, 2025 |
| /s/ Michael S. Bishop<br>Michael S. Bishop | Executive Vice President, Chief Financial Officer and Treasurer<br>(Principal Financial Officer and Principal Accounting Officer) | December 18, 2025 |
| /s/ James H. England<br>James H. England | Director – Chairman of the Board | December 18, 2025 |
| /s/ Betsy Bingham<br>Betsy Bingham | Director | December 18, 2025 |
| /s/ Cynthia Hansen<br>Cynthia Hansen | Director | December 18, 2025 |
| /s/ Matthew Hilzinger<br>Matthew Hilzinger | Director | December 18, 2025 |
| /s/ Tyrone Michael ("TJ") Jordan<br>Tyrone Michael ("TJ") Jordan | Director | December 18, 2025 |
| /s/ Donna Sims Wilson<br>Donna Sims Wilson | Director | December 18, 2025 |
| /s/ Natica von Althann<br>Natica von Althann | Director | December 18, 2025 |

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## Exhibit 4.1

**Exhibit 4.1**

**Description of Securities Registered Under Section 12 of the Securities Exchange Act of 1934, as amended**

As of October 31, 2025, FuelCell Energy, Inc. (the "Company," "we," "us," and "our") had one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the "Exchange Act") – our common stock, par value $0.0001 per share.

***Description of Common Stock***

The following description of our common stock is a summary and does not purport to be complete. It is subject to, and qualified in its entirety by reference to, our Certificate of Incorporation, as amended (our "Certificate of Incorporation"), and our Third Amended and Restated By-laws (our "By-laws"), each of which is filed as an exhibit to our Annual Report on Form 10-K for the fiscal year ended October 31, 2025 and incorporated by reference herein. We encourage you to read our Certificate of Incorporation, our By-laws and the applicable provisions of the General Corporation Law of the State of Delaware (the "DGCL") for additional information.

***Authorized Capital Stock***. Under our Certificate of Incorporation, we are authorized to issue 1,000,000,000 shares of common stock, par value $0.0001 per share, and 250,000 shares of preferred stock, par value $0.01 per share, in one or more series designated by our board of directors, of which 105,875 shares of our preferred stock have been designated as 5% Series B Cumulative Convertible Perpetual Preferred Stock ("Series B Preferred Stock"). As of December 15, 2025, there were 47,736,734 shares of our common stock outstanding.

***Voting Rights****.* The holders of our common stock have one vote per share. Holders of our common stock are not entitled to vote cumulatively for the election of directors. Generally, matters to be voted on by stockholders (including the election of directors in uncontested elections) must be approved by a majority of the votes properly cast on the matter at a meeting at which a quorum is present, subject to any voting rights granted to holders of any then-outstanding preferred stock. (The voting rights of the outstanding Series B Preferred Stock are described below under the heading "Description of Series B Preferred Stock.") A plurality voting standard applies in contested director elections (i.e., when the number of nominees for election as directors exceeds the number of directors to be elected at such meeting).

***Dividends****.* Holders of our common stock will share ratably in any dividends declared by our board of directors, subject to the preferential rights of any of our preferred stock then outstanding. (The dividend rights of the outstanding Series B Preferred Stock are described below under the heading "Description of Series B Preferred Stock.") Dividends consisting of shares of our common stock may be paid to holders of shares of our common stock. We have never paid a cash dividend on our common stock and do not anticipate paying any cash dividends on our common stock in the foreseeable future.

***Liquidation Rights***. In the event of our liquidation, dissolution or winding up, after payment of liabilities and liquidation preferences on any of our preferred stock then outstanding, the holders of shares of our common stock are entitled to share ratably in all assets available for distribution. (The liquidation and other rights of the outstanding Series B Preferred Stock are described below under the heading "Description of Series B Preferred Stock").

***Other Rights****.* Holders of shares of our common stock (solely in their capacity as holders of shares of our common stock) have no preemptive rights or rights to convert their shares of our common stock into any other securities. There are no redemption or sinking fund provisions applicable to our common stock.

***Listing on The Nasdaq Global Market****.* Our common stock is listed on The Nasdaq Global Market under the symbol "FCEL."

***Transfer Agent and Registrar.*** The transfer agent and registrar for our common stock is Equiniti Trust Company, LLC.

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***Description of Series B Preferred Stock***

The following description of our Series B Preferred Stock is a summary and does not purport to be complete. It is subject to, and qualified in its entirety by reference to, our Certificate of Incorporation (including the Amended Certificate of Designation for the Series B Preferred Stock (the "Series B Certificate of Designation")) and our By-laws, each of which is filed as an exhibit to our Annual Report on Form 10-K for the fiscal year ended October 31, 2025 and incorporated by reference herein. We encourage you to read our Certificate of Incorporation, our By-laws and the applicable provisions of the DGCL for additional information.

As of December 15, 2025, there were 64,020 shares of Series B Preferred Stock issued and outstanding.

***Ranking***. Shares of our Series B Preferred Stock rank with respect to dividend rights and rights upon our liquidation, winding up or dissolution:

● senior to shares of our common stock;

● junior to our debt obligations; and

● effectively junior to our subsidiaries' (i) existing and future liabilities and (ii) capital stock held by others.

***Dividends***. The Series B Preferred Stock pays cumulative annual dividends of $50.00 per share, which are payable quarterly in arrears on February 15, May 15, August 15 and November 15. Dividends accumulate and are cumulative from the date of original issuance. Unpaid accumulated dividends do not bear interest.

The dividend rate is subject to upward adjustment as set forth in the Series B Certificate of Designation if we fail to pay, or to set apart funds to pay, any quarterly dividend on the Series B Preferred Stock.

No dividends or other distributions may be paid or set apart for payment on our common stock (other than a dividend payable solely in shares of a like or junior ranking), nor may any stock junior to or on parity with the Series B Preferred Stock be redeemed, purchased or otherwise acquired for any consideration (or any money paid to or made available for a sinking fund for such stock) by us or on our behalf (except by conversion into or exchange for shares of a like or junior ranking), unless all accumulated and unpaid dividends on the Series B Preferred Stock have been paid or funds or shares of common stock have been set aside for payment of such accumulated and unpaid dividends.

The dividends on the Series B Preferred Stock will be paid in cash, unless a registered holder elects (pursuant to the procedures set forth in the Series B Certificate of Designation) to receive such dividends in shares of our common stock. Any such shares of common stock paid in lieu of cash dividends will be treated as restricted securities and will not be transferable by the recipient thereof except pursuant to an effective registration statement or pursuant to an exemption from the registration requirements of the Securities Act of 1933, as amended (the "Securities Act").

***Liquidation***. The holders of Series B Preferred Stock are entitled to receive, in the event that the Company is liquidated, dissolved or wound up, whether voluntarily or involuntarily, $1,000.00 per share plus all accumulated and unpaid dividends up to but excluding the date of such liquidation, dissolution, or winding up (the "Liquidation Preference"). Until the holders of Series B Preferred Stock receive the Liquidation Preference with respect to their shares of Series B Preferred Stock in full, no payment will be made on any junior shares, including shares of our common stock. After the Liquidation Preference is paid in full, holders of the Series B Preferred Stock will not be entitled to receive any further distribution of our assets. (For the avoidance of doubt, neither the voluntary sale of all or substantially all of our assets, nor a merger involving the Company, shall be deemed to be a voluntary or involuntary liquidation, dissolution or winding up of the Company.) As of October 31, 2025, the issued and outstanding shares of Series B Preferred Stock had an aggregate Liquidation Preference of $64.0 million.

***Conversion Rights***. Each share of Series B Preferred Stock may be converted at any time, at the option of the holder, into 0.0197 shares of our common stock (which is equivalent to a conversion price of $50,760.00 per share) plus cash in lieu of fractional shares. The conversion rate is subject to adjustment upon the occurrence of certain events, as described in the Series B Certificate of Designation. The conversion rate is not adjusted for accumulated

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and unpaid dividends. If converted, holders of Series B Preferred Stock do not receive a cash payment for all accumulated and unpaid dividends; rather, all accumulated and unpaid dividends are canceled.

We may, at our option, cause shares of Series B Preferred Stock to be automatically converted into that number of shares of our common stock that are issuable at the then-prevailing conversion rate. We may exercise our conversion right only if the closing price of our common stock exceeds 150% of the then-prevailing conversion price ($50,760.00 per share as of October 31, 2025) for 20 trading days during any consecutive 30 trading day period, as described in the Series B Certificate of Designation.

If the holders of Series B Preferred Stock elect to convert their shares in connection with certain "fundamental changes" (as defined in the Series B Certificate of Designation and described below), we will in certain circumstances increase the conversion rate by a number of additional shares of common stock upon conversion or, in lieu thereof, we may in certain circumstances elect to adjust the conversion rate and related conversion obligation so that shares of Series B Preferred Stock are converted into shares of the acquiring or surviving company, in each case as described in the Series B Certificate of Designation.

The adjustment of the conversion price is to prevent dilution of the interests of the holders of the Series B Preferred Stock from certain dilutive transactions with holders of our common stock.

***Redemption***. We do not have the option to redeem the Series B Preferred Stock. However, holders of the Series B Preferred Stock can require us to redeem all or a portion of their shares of Series B Preferred Stock at a redemption price equal to the Liquidation Preference of the shares to be redeemed in the case of a "fundamental change" (as further described in the Series B Certificate of Designation). A fundamental change will be deemed to have occurred if any of the following occurs:

● any "person" or "group" is or becomes the beneficial owner, directly or indirectly, of 50% or more of the total voting power of all classes of our capital stock then outstanding and normally entitled to vote in the election of directors;

● during any period of two consecutive years, individuals who at the beginning of such period constituted the board of directors of the Company (together with any new directors whose election to our board of directors or whose nomination for election by the stockholders was approved by a vote of 66 2/3% of our directors then still in office who were either directors at the beginning of such period or whose election or nomination for election was previously so approved) cease for any reason to constitute a majority of the directors of the Company then in office;

● the termination of trading of our common stock on The Nasdaq Stock Market and our common stock is not approved for trading or quoted on any other U.S. securities exchange or established over-the-counter trading market in the U.S.; or

● we (i) consolidate with or merge with or into another person or another person merges with or into our Company or (ii) sell, assign, transfer, lease, convey or otherwise dispose of all or substantially all of the assets of the Company and certain of its subsidiaries, taken as a whole, to another person and, in the case of any such merger or consolidation described in clause (i), the securities that are outstanding immediately prior to such transaction (and which represent 100% of the aggregate voting power of our voting stock) are changed into or exchanged for cash, securities or property, unless pursuant to the transaction such securities are changed into or exchanged for securities of the surviving person that represent, immediately after such transaction, at least a majority of the aggregate voting power of the voting stock of the surviving person.

Notwithstanding the foregoing, holders of shares of Series B Preferred Stock will not have the right to require us to redeem their shares if:

● the last reported sale price of shares of our common stock for any five trading days within the 10 consecutive trading days ending immediately before the later of the fundamental change or its announcement equaled or exceeded 105% of the conversion price of the Series B Preferred Stock immediately before the fundamental change or announcement;

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● at least 90% of the consideration (excluding cash payments for fractional shares and in respect of dissenters' appraisal rights) in the transaction or transactions constituting the fundamental change consists of shares of capital stock traded on a U.S. national securities exchange or quoted on The Nasdaq Stock Market, or which will be so traded or quoted when issued or exchanged in connection with a fundamental change, and as a result of the transaction or transactions, shares of Series B Preferred Stock become convertible into such publicly traded securities; or

● in the case of a merger or consolidation constituting a fundamental change (as described in the fourth bullet above), the transaction is affected solely to change our jurisdiction of incorporation.

Moreover, we will not be required to redeem any Series B Preferred Stock upon the occurrence of a fundamental change if a third party makes an offer to purchase the Series B Preferred Stock in the manner, at the price, at the times and otherwise in compliance with the requirements set forth above and such third party purchases all shares of Series B Preferred Stock validly tendered and not withdrawn.

We may, at our option, elect to pay the redemption price in cash, in shares of our common stock valued at a discount of 5% from the market price of shares of our common stock, or in any combination thereof. Notwithstanding the foregoing, we may only pay such redemption price in shares of our common stock that are registered under the Securities Act and eligible for immediate sale in the public market by non-affiliates of our Company.

***Voting Rights***. Holders of Series B Preferred Stock currently have no voting rights; however, holders may receive certain voting rights, as described in the Series B Certificate of Designation, if (a) dividends on any shares of Series B Preferred Stock, or any other class or series of stock ranking on parity with the Series B Preferred Stock with respect to the payment of dividends, shall be in arrears for dividend periods, whether or not consecutive, containing in the aggregate a number of days equivalent to six calendar quarters or (b) we fail to pay the redemption price, plus accrued and unpaid dividends, if any, on the redemption date for shares of Series B Preferred Stock following a fundamental change. In each such event, the holders of Series B Preferred Stock (voting separately as a class with all other classes or series of stock ranking on parity with the Series B Preferred Stock with respect to the payment of dividends and upon which like voting rights have been conferred and are exercisable) will be entitled to elect two directors to the Company's board of directors in addition to those directors already serving on the Company's board of directors at such time (the "Series B Directors"), at the next annual meeting of the Company's stockholders (or at a special meeting of the Company's stockholders called for such purpose, whichever is earlier). The right to elect the Series B Directors will continue for each subsequent annual meeting of the Company's stockholders until all dividends accumulated on the shares of Series B Preferred Stock have been fully paid or set aside for payment or the Company pays in full or sets aside for payment such redemption price, plus accrued but unpaid dividends, if any, on the redemption date for the shares of Series B Preferred Stock following a fundamental change. The term of office of any Series B Directors will terminate immediately upon the termination of the right of holders of Series B Preferred Stock to elect such Series B Directors, as described in this paragraph. Each holder of Series B Preferred Stock will have one vote for each share of Series B Preferred Stock held in the election of Series B Directors. We previously failed to make timely payment of the accrued dividends on the Series B Preferred Stock with respect to the May 15, 2019 and August 15, 2019 dividend payment dates. Such amounts were fully paid on or about November 15, 2019.

So long as any shares of Series B Preferred Stock remain outstanding, we will not, without the consent of the holders of at least two-thirds of the shares of Series B Preferred Stock outstanding at the time (voting separately as a class with all other series of preferred stock, if any, on parity with our Series B Preferred Stock upon which like voting rights have been conferred and are exercisable) issue or increase the authorized amount of any class or series of shares ranking senior to the outstanding shares of the Series B Preferred Stock as to dividends or upon liquidation. In addition, we will not, subject to certain conditions, amend, alter or repeal provisions of our Certificate of Incorporation, including the Series B Certificate of Designation, whether by merger, consolidation or otherwise, so as to adversely amend, alter or affect any power, preference or special right of the outstanding shares of Series B Preferred Stock or the holders thereof without the affirmative vote of not less than two-thirds of the issued and outstanding shares of Series B Preferred Stock.

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***Anti-Takeover Provisions***

*Provisions of our Certificate of Incorporation and By-laws*

A number of provisions of our Certificate of Incorporation and By-laws concern matters of corporate governance and the rights of stockholders. Some of these provisions, including, but not limited to, the inability of stockholders to take action by unanimous written consent, certain advance notice requirements for stockholder proposals and director nominations, supermajority voting provisions requiring the affirmative vote of eighty percent of the votes entitled to be cast by the stockholders to amend or repeal voting rights provisions (e.g., provisions giving holders of our common stock one vote per share, provisions prohibiting stockholders from taking action without a meeting, and the supermajority voting provisions), the filling of vacancies on the board of directors by the affirmative vote of a majority of the remaining directors, and the ability of the board of directors to issue shares of preferred stock and to set the voting rights, preferences and other terms thereof without further stockholder action, may be deemed to have an anti-takeover effect and may discourage takeover attempts not first approved by the board of directors, including takeovers which stockholders may deem to be in their best interests. If takeover attempts are discouraged, temporary fluctuations in the market price of shares of our common stock, which may result from actual or rumored takeover attempts, may be inhibited. These provisions, together with the ability of the board of directors to issue preferred stock without further stockholder action, could also delay or frustrate the removal of incumbent directors or the assumption of control by our stockholders, even if the removal or assumption would be beneficial to our stockholders. These provisions could also discourage or inhibit a merger, tender offer or proxy contest, even if favorable to the interests of stockholders, and could depress the market price of our common stock. The board of directors believes these provisions are appropriate to protect our interests and the interests of our stockholders. The board of directors has no present plans to adopt any further measures or devices which may be deemed to have an "anti-takeover effect."

*Delaware Anti- Takeover Provisions*

We are subject to Section 203 of the DGCL, which prohibits a publicly-held Delaware corporation from engaging in a "business combination," except under certain circumstances, with an "interested stockholder" for a period of three years following the date such person became an "interested stockholder" unless:

● before such person became an interested stockholder, the board of directors of the corporation approved either the business combination or the transaction that resulted in the interested stockholder becoming an interested stockholder;

● upon the consummation of the transaction that resulted in the interested stockholder becoming an interested stockholder, the interested stockholder owned at least 85% of the voting stock of the corporation outstanding at the time the transaction commenced, excluding shares held by directors who are also officers of the corporation and shares held by employee stock plans in which employee participants do not have the right to determine confidentially whether shares held subject to the plan will be tendered in a tender or exchange offer; or

● at or following the time such person became an interested stockholder, the business combination is approved by the board of directors of the corporation and authorized at an annual or special meeting of stockholders (and not by written consent) by the affirmative vote of the holders of at least 66 2/3% of the outstanding voting stock of the corporation which is not owned by the interested stockholder.

The term "interested stockholder" generally is defined as a person who, together with affiliates and associates, owns, or, within the three years prior to the determination of interested stockholder status, owned, 15% or more of a corporation's outstanding voting stock. The term "business combination" includes mergers, asset or stock sales and other similar transactions resulting in a financial benefit to an interested stockholder. Section 203 makes it more difficult for an "interested stockholder" to effect various business combinations with a corporation for a three-year period. The existence of this provision would be expected to have an anti-takeover effect with respect to transactions not approved in advance by the board of directors, including discouraging attempts that might result in a premium over the market price for the shares of our common stock held by stockholders. A Delaware corporation may "opt out" of Section 203 with an express provision in its original certificate of incorporation or any amendment thereto. Our Certificate of Incorporation does not contain any such exclusion.

------

## Exhibit 10.98

Exhibit 10.98

#### WAIVER AND AMENDMENT NO. 4 TO FINANCING AGREEMENT
This WAIVER AND AMENDMENT NO. 4 TO FINANCING AGREEMENT (this "**Agreement**"), dated as of December 15, 2025, among (a) INVESTEC BANK PLC ("**Investec**"), as administrative agent (in such capacity, together with its successors in such capacity, the "**Administrative Agent**") and a Lender, (b) LIBERTY BANK, as a Lender, (c) BANK OF MONTREAL, as a Lender, (d) AMALGAMATED BANK, as a Lender, (e) CONNECTICUT GREEN BANK, as a Lender and (f) FUELCELL ENERGY OPCO FINANCE 1, LLC, a Delaware limited liability company (the "**Borrower**"). Capitalized terms used and not otherwise defined herein shall have the respective meaning given such terms in the Financing Agreement (as defined below).

#### RECITALS:
WHEREAS, reference is hereby made to the Financing Agreement, dated as of May 19, 2023, among the Borrower, the financial institutions party thereto from time to time as lenders (the "**Lenders**") and LC Issuing Banks, the Administrative Agent and Investec Bank plc, as the Collateral Agent (as amended by that certain Amendment No. 1 to Financing Agreement, dated as of August 11, 2023, as further amended by that certain Amendment No. 2 to Financing Agreement, dated as of January 2, 2024, as further amended by that certain Amendment No. 3 to Financing Agreement, dated as of April 29, 2024, and as further amended, supplemented or modified from time to time, the "**Financing Agreement**");

WHEREAS, pursuant to Sections 5.1(z) (*Reporting Requirements*) and 5.24 (*Proposed Operating Budget*) of the Financing Agreement, the Borrower is required to Make Available (i) no later than 60 days after the end of each fiscal quarter, a reasonably detailed operating report for the previous fiscal quarter, which shall include reasonably detailed information with respect to each Project including a (A) quarterly or monthly and (B) year-to-date line item comparison of actual operating and financial results to the current budget, and shall be consistent with the sample operating report provided by the Borrower to the Lenders prior to the Closing Date, and (ii) no later than November 1, copies of the proposed operating budget setting forth the anticipated revenues and expenses (both operating and capital) of the Subsidiaries and the Projects for each fiscal year ((i) and (ii), collectively, the "**Specified Reporting Requirements**");

WHEREAS, the Borrower has delayed providing (i) the operating reports for the previous fiscal quarters, (ii) the 2025 proposed operating budget, and (iii) the 2026 proposed operating budget, in each case within the applicable time periods for such Specified Reporting Requirements as set forth in the Financing Agreement (each of (i) through (iii), collectively, the "**Specified Reports**");

WHEREAS, the Borrower requests that the Lenders waive, for all purposes under the Financing Agreement and Financing Documents, Borrower's delay or other noncompliance in not providing the Specified Reports in accordance with the Specified Reporting Requirements (the "**Requested Waiver**");

WHEREAS, the Borrower and the Lenders party hereto (constituting the Required Lenders) desire to amend Section 8.9 (*Breach of Financing Documents*) of the Financing

------

Agreement to provide that, as of the Effective Date, Section 8.9 will apply to the Specified Reporting Requirements as well as other covenants under the Financing Agreement that are not otherwise addressed in the Financing Agreement and, in connection therewith, to provide a cure period for defaults or Events of Default resulting from a failure to perform or observe any covenant or agreement to be performed or observed by the Borrower under the Financing Agreement that are not otherwise addressed in the Financing Agreement, including but not limited to the Specified Reporting Requirements;

WHEREAS, pursuant to Section 9.10 (*Amendments*) of the Financing Agreement, the consent of the Required Lenders is required for the Requested Waiver and the amendments set forth in this Agreement, and the parties hereto have agreed to grant the Requested Waiver and amend the Financing Agreement in certain respects as provided herein.

#### AGREEMENT:
NOW, THEREFORE, in consideration of the premises and the covenants and agreements contained herein, and for other good and valuable consideration, the parties hereto hereby agree as follows:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.<u>Waiver</u>. Subject to the satisfaction of the conditions precedent specified in <u>Section 3</u> hereof, pursuant to Section 9.10 (*Amendments*) of the Financing Agreement, the undersigned Lenders (constituting the Required Lenders) hereby agree and consent to provide the Requested Waiver.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2.<u>Amendments to the Financing Agreement</u>. Subject to the satisfaction of the conditions precedent specified in <u>Section 3</u> hereof, the parties hereto hereby agree that as of the Effective Date (as defined below), Section 8.9 (*Breach of Financing Documents*) of the Financing Agreement is hereby amended by deleting the red stricken text (indicated textually in the same manner as the following example: red stricken text) and adding the blue underlined text (indicated textually in the same manner as the following example: <u>blue underlined text</u>):

"8.9<u>Breach of Financing Documents</u>. The Borrower, the Member of any Subsidiary, as applicable, shall fail to perform or observe any covenant or agreement to be performed or observed by it under any Financing Document other than this Agreement and not otherwise specifically provided for elsewhere in this Article 8, and such failure shall continue unremedied for a period of thirty (30) days after notice of such failure is provided to the Borrower <u>(except that no such notice will be required for a failure to perform the covenant in Section 5.1(z) (</u>*Reporting Requirements – Operating Report*<u>) or Section 5.24 (</u>*Proposed Operating Budget)*<u>)</u>; provided, however, that if the breach or default (other than a default for the payment of amounts when due) cannot be remedied within such period despite the Borrower's or such other party's, as the case may be, reasonable commercial efforts to do so, the<u>n</u> such cure period shall be extended for an additional sixty (60)-day period beyond the initial cure period, to cure such breach or default if the breach or default could not reasonably be expected to have a Material Adverse Effect if not cured within such sixty (60)-day period and if remedial action (A) could reasonably be expected to result in cure within such additional sixty (60)-day period, (B) is promptly instituted within the initial cure period, and (C) is thereafter diligently pursued until the breach or default is corrected within such additional reasonable cure period granted by the Required Lenders."

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3.<u>Conditions Precedent to Effectiveness</u>. This Agreement shall become effective on and as of the date (the "**Effective Date**") on which the Administrative Agent has received executed counterparts of this Agreement by each of the parties hereto.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.<u>Representations and Warranties</u>. In order to induce Administrative Agent and the Lenders to enter into this Agreement, the Borrower hereby represents, warrants and covenants to each of the other parties hereto:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)after giving effect to this Agreement, no Default or Event of Default has occurred and is continuing or will arise from the transactions contemplated hereby;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)the execution and delivery by Borrower of this Agreement and the performance by Borrower of all of its obligations hereunder are within its organizational and legal power and authority and have been duly authorized by all necessary action on the part of, and, upon execution and delivery thereof, will have been duly and validly executed and delivered by, Borrower;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)this Agreement is (i) a legal, valid and binding obligation of Borrower, (ii) in full force and effect, and (iii) enforceable against Borrower in accordance with its terms, except as the enforceability thereof may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or other similar laws affecting the enforcement of creditors' rights generally and by general equitable principles regardless of whether the issue of enforceability is considered in a proceeding in equity or at law; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d)after giving effect to this Agreement, each representation and warranty set forth in Article 4 (*Representation and Warranties*) of the Financing Agreement is true and correct in all material respects (except if such representation is already qualified by reference to materiality, Material Adverse Effect or a similar materiality qualifier, in which case such representation and warranty shall be true and correct without regard to materiality) as if made on the date hereof (or if such representation and warranty relates solely as of an earlier date, as of such earlier date).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.<u>Counterparts; Facsimile Signatures</u>. This Agreement may be signed in any number of counterparts, and signatures to all counterparts hereto, when assembled together, shall constitute signatures to this entire Agreement with the same effect as if all signatures were on the same document. Delivery of an executed counterpart of this Agreement by facsimile or other electronic means, including by e-mail with a *pdf* copy thereof attached shall be equally as effective as delivery of an executed original counterpart of this Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.<u>Integration</u>. This Agreement contains a final and complete integration of all prior expressions by the parties hereto with respect to the transactions contemplated hereby and constitutes the entire agreement among the parties hereto with respect to the subject matter hereof, superseding all prior oral or written understandings.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.<u>Limitations</u>. The amendments and waivers set forth in this Agreement shall be applicable solely with respect to those matters expressly provided herein and no other amendments, waivers or consents may be construed or implied. Except as expressly provided

------

herein, each Financing Document is and shall remain unchanged and in full force and effect and nothing contained in this Agreement shall abrogate, prejudice, diminish or otherwise affect any powers, right, remedies or obligations of any Person arising before the date of this Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.<u>Notices</u>. Any notice or other communication herein required or permitted to be given shall be in writing, shall be sent by facsimile, overnight courier (if for inland delivery) or international courier (if for overseas delivery) and will be deemed to be effective pursuant to the terms of the Financing Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;9.<u>Financing Document</u>. This Agreement shall constitute a Financing Document.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10.<u>Headings</u>. The headings of various sections of this Agreement are for convenience of reference only, do not constitute a part hereof and shall not affect the meaning or construction of any provision hereof.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;11.<u>Financing Agreement References</u>. References in the Financing Agreement (including references to the Financing Agreement as amended) to "this Agreement" (and indirect references such as "hereunder", "hereby", "herein" and "hereof") shall be deemed to be references to the Financing Agreement as amended hereby.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;12.<u>Miscellaneous</u>. Sections 11.6 (*Governing Law*), 11.7 (*Severability*), 11.13 (*Waiver of Jury Trial*), 11.14 (*Consent To Jurisdiction*) and 11.16 (*Successors and Assigns*) of the Financing Agreement are hereby incorporated by reference as if fully set forth herein.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;13.<u>Execution of Documents</u>. The undersigned Lenders, which collectively constitute the Required Lenders under the Financing Agreement, hereby authorize and instruct the Administrative Agent to execute and deliver this Agreement.

[*Signature pages follow*]

------

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed by their respective officers thereunto duly authorized as of the date first above written.

---

| | |
|:---|:---|
| &nbsp;&nbsp;**INVESTEC BANK PLC**, | &nbsp;&nbsp;**INVESTEC BANK PLC**, |
| &nbsp;&nbsp;as Administrative Agent and a Lender | &nbsp;&nbsp;as Administrative Agent and a Lender |
| &nbsp;&nbsp;By: | &nbsp;&nbsp;<u>/s/ Steven Cowland</u>  |
|  | &nbsp;&nbsp;Name: Steven Cowland |
|  | &nbsp;&nbsp;Title: Authorised Signatory |
| &nbsp;&nbsp;By: | &nbsp;&nbsp;<u>/s/ Shelagh Kirkland</u>  |
|  | &nbsp;&nbsp;Name: Shelagh Kirkland |
|  | &nbsp;&nbsp;Title: Authorised Signatory |

---

*Signature Page to<br>Waiver and Amendment No. 4 to Financing Agreement*

------

---

| | |
|:---|:---|
| &nbsp;&nbsp;**LIBERTY BANK**, | &nbsp;&nbsp;**LIBERTY BANK**, |
| &nbsp;&nbsp;as a Lender | &nbsp;&nbsp;as a Lender |
| &nbsp;&nbsp;By: | &nbsp;&nbsp;<u>/s/ Daniel J. Longo</u>  |
|  | &nbsp;&nbsp;Name: Daniel J. Longo |
|  | &nbsp;&nbsp;Title: First Vice President |

---

*Signature Page to<br>Waiver and Amendment No. 4 to Financing Agreement*

------

---

| | |
|:---|:---|
| &nbsp;&nbsp;**BANK OF MONTREAL**, | &nbsp;&nbsp;**BANK OF MONTREAL**, |
| &nbsp;&nbsp;as a Lender | &nbsp;&nbsp;as a Lender |
| &nbsp;&nbsp;By: |  |
|  | &nbsp;&nbsp;Name:  |
|  | &nbsp;&nbsp;Title: <br>|

---

*Signature Page to<br>Waiver and Amendment No. 4 to Financing Agreement*

------

---

| | |
|:---|:---|
| &nbsp;&nbsp;**AMALGAMATED BANK**, | &nbsp;&nbsp;**AMALGAMATED BANK**, |
| &nbsp;&nbsp;as a Lender | &nbsp;&nbsp;as a Lender |
| &nbsp;&nbsp;By: | &nbsp;&nbsp;<u>/s/ Guillermo "Memo" Trevino</u>  |
|  | &nbsp;&nbsp;Name: Guillermo "Memo" Trevino |
|  | &nbsp;&nbsp;Title: First Vice President |

---

*Signature Page to<br>Waiver and Amendment No. 4 to Financing Agreement*

------

---

| | |
|:---|:---|
| &nbsp;&nbsp;**CONNECTICUT GREEN BANK**, | &nbsp;&nbsp;**CONNECTICUT GREEN BANK**, |
| &nbsp;&nbsp;as a Lender | &nbsp;&nbsp;as a Lender |
| &nbsp;&nbsp;By: | &nbsp;&nbsp;<u>/s/ Bert Hunter</u>  |
|  | &nbsp;&nbsp;Name: Bert Hunter |
|  | &nbsp;&nbsp;Title: Executive Vice President and Chief Investment Officer |

---

*Signature Page to<br>Waiver and Amendment No. 4 to Financing Agreement*

------

---

| | |
|:---|:---|
| &nbsp;&nbsp;**FUELCELL ENERGY OPCO FINANCE 1, LLC**, | &nbsp;&nbsp;**FUELCELL ENERGY OPCO FINANCE 1, LLC**, |
| &nbsp;&nbsp;as Borrower | &nbsp;&nbsp;as Borrower |
| &nbsp;&nbsp;By: | &nbsp;&nbsp;<u>/s/ Michael S. Bishop</u>  |
|  | &nbsp;&nbsp;Name: Michael S. Bishop |
|  | &nbsp;&nbsp;Title: EVP, CFO, FuelCell Energy, Inc. |

---

*Signature Page to<br>Waiver and Amendment No. 4 to Financing Agreement*

------

## Ex-21

**Exhibit 21**

**FuelCell Energy, Inc.**

**Subsidiaries of the Registrant**

---

| | |
|:---|:---|
| **Entity Name** | **State / Country of Incorporation** |
| Allen Place FC, LLC \* | Connecticut |
| Bridgeport Fuel Cell, LLC \* | Virginia |
| Central CA Fuel Cell 2, LLC \* | Delaware |
| Dedicated Power Partners, LLC \* | Delaware |
| Derby Fuel Cell, LLC \* | Connecticut |
| Derby Fuel Cell Holdco, LLC \* | Delaware |
| DFC ERG CT, LLC \* | Connecticut |
| FCE Carbon Recovery 1, LLC \* | Delaware |
| FCE Carbon Recovery 2, LLC \* | Delaware |
| FCE Carbon Recovery 3, LLC | Delaware |
| FCE FuelCell Energy Ltd. \* | Canada |
| FCE Korea Ltd. \* | South Korea |
| FCE Project Holding Co. 1, LLC \* | Delaware |
| FCE Time to Power 1, LLC \* | Delaware |
| FCE Time to Power 2, LLC \* | Delaware |
| FCE Time to Power 3, LLC \* | Delaware |
| FCE Time to Power 4, LLC \* | Delaware |
| FCE Torrington CR 1, LLC \* | Delaware |
| FuelCell Energy Derby Finance Holdco, LLC \* | Delaware |
| FuelCell Energy EU B.V \*. | Netherlands |
| FuelCell Energy Finance Holdco, LLC \* | Delaware |
| FuelCell Energy Finance, LLC \* | Connecticut |
| FuelCell Energy Finance II, LLC \* | Connecticut |
| FuelCell Energy Japan G.K. \* | Japan |
| FuelCell Energy Opco Finance 1, LLC \* | Delaware |
| FuelCell Energy RNG, LLC \* | Delaware |
| FuelCell Energy Solutions GmbH \* | Germany |
| FuelCell Energy Spain, S.L. \* | Spain |
| FuelCell YT Holdco, LLC \* | Delaware |
| Groton Fuel Cell 1, LLC \* | Connecticut |
| Groton Station Fuel Cell Holdco, LLC \* | Delaware |
| Groton Station Fuel Cell, LLC \* | Connecticut |
| Homestead Fuel Cell 1, LLC \* | Connecticut |
| IPB Fuel Cell 1, LLC \* | Delaware |
| IPB Fuel Cell 1, LLC \* | Delaware |
| Long Beach Trigen, LLC \* | Delaware |
| New Britain Renewable Energy, LLC \* | Delaware |
| Riverside Fuel Cell, LLC \* | Delaware |
| San Bernardino Fuel Cell, LLC \* | Delaware |
| SCEF1 Fuel Cell, LLC \* | Connecticut |
| SCEF2 Fuel Cell, LLC \* | Connecticut |
| SCEF3 Fuel Cell, LLC \* | Connecticut |
| SRJFC, LLC \* | Delaware |
| TRS Fuel Cell, LLC \* | Connecticut |
| UCSD Fuel Cell, LLC\* | Delaware |
| Versa Power Systems, Inc. \* | Delaware |
| Versa Power Systems Ltd. \* | Canada |
| Yaphank Fuel Cell Park, LLC \* | New York |
| YTBFC Holdco, LLC \* | Delaware |

---

\* These entities are wholly-owned (direct or indirect) subsidiaries of FuelCell Energy, Inc.

------

## Exhibit 23.1

#### Exhibit 23.1
**Consent of Independent Registered Public Accounting Firm**

The Board of Directors

FuelCell Energy, Inc.

We consent to the incorporation by reference in the registration statements on Form S-8 (Nos. 333-286655, 333-278542, 333-272990, 333-255131, 333-238609, 333-224154, 333-217250, 333-211092, 333-195848, 333-181021, 333-177045 and 333-166164) and on Form S-3 (Nos. 333-286842, 333-274971, 333-249139, 333-239540, 333-226792, 333-215530, 333-201428, 333-201427, 333-187290, 333-185221 and 333-166565) of our report dated December 18, 2025, with respect to the consolidated financial statements of FuelCell Energy, Inc. and the effectiveness of internal control over financial reporting.

/s/ KPMG LLP

Philadelphia, Pennsylvania<br>December 18, 2025

------

## Exhibit 31.1

#### Exhibit 31.1

#### CERTIFICATION
I, Jason B. Few, certify that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. I have reviewed this annual report on Form 10-K of FuelCell Energy, Inc.;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation, and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of registrant's board of directors (or persons performing the equivalent function):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

---

| | |
|:---|:---|
| December 18, 2025 | /s/ Jason B. Few |
|  | Jason B. Few<br>President and Chief Executive Officer<br>(Principal Executive Officer) |

---

------

## Exhibit 31.2

#### Exhibit 31.2

#### CERTIFICATION
I, Michael S. Bishop, certify that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. I have reviewed this annual report on Form 10-K of FuelCell Energy, Inc.;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation, and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of registrant's board of directors (or persons performing the equivalent function):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

---

| | |
|:---|:---|
| December 18, 2025 | /s/ Michael S. Bishop |
|  | Michael S. Bishop<br>Executive Vice President, Chief Financial Officer and Treasurer<br>(Principle Financial Officer and Principle Accounting Officer) |

---

------

## Exhibit 32.1

#### Exhibit 32.1

#### CERTIFICATION PURSUANT TO<br>18 U.S.C. SECTION 1350,<br>AS ADOPTED PURSUANT TO<br>SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with the annual report of FuelCell Energy, Inc. (the "Company") on Form 10-K for the year ended October 31, 2025 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Jason B. Few, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C 78m or 78o(d)); and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

---

| | |
|:---|:---|
| December 18, 2025 | /s/ Jason B. Few |
|  | Jason B. Few<br>President and Chief Executive Officer<br>(Principal Executive Officer) |

---

A signed original of this written statement has been provided to the Company and will be retained by the Company and furnished to the SEC or its staff upon request.

------

## Exhibit 32.2

#### Exhibit 32.2

#### CERTIFICATION PURSUANT TO<br>18 U.S.C. SECTION 1350,<br>AS ADOPTED PURSUANT TO<br>SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with the annual report of FuelCell Energy, Inc. (the "Company") on Form 10-K for the year ended October 31, 2025 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Michael S. Bishop, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C 78m or 78o(d)); and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

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| | |
|:---|:---|
| December 18, 2025 | /s/ Michael S. Bishop |
|  | Michael S. Bishop<br>Executive Vice President, Chief Financial Officer and Treasurer<br>(Principal Financial Officer and Principal Accounting Officer) |

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A signed original of this written statement has been provided to the Company and will be retained by the Company and furnished to the SEC or its staff upon request.

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