Posts of Stephen Prybeck

Eos Energy Enterprises (NASDAQ: EOSE), a U.S. manufacturer of zinc-based long-duration energy storage systems, announced preliminary third-quarter 2026 revenue of $82–$83 million, representing approximately 169%–172% year-over-year growth. The company reported its eighth consecutive quarter of gross margin improvement, supported by increased battery production and continued manufacturing expansion at its Thorn Hill facility. Eos will report full Q3 2026 financial results on November 5, 2026.

First advance under second tranche brings total drawn under the DOE facility to $178 million and supports 4 GWh of annual battery manufacturing capacity in Western Pennsylvania

PITTSBURGH, Sept. 14, 2026 (GLOBE NEWSWIRE) — Eos Energy Enterprises, Inc. (NASDAQ: EOSE) (“Eos” or the “Company”), America’s leading innovator in designing, manufacturing, and providing zinc-based long-duration energy storage (LDES) systems sourced and manufactured in the United States, today announced it has received an $87 million first advance under the second tranche of its loan agreement with the U.S. Department of Energy’s (DOE) Office of Energy Dominance Financing (EDF).

The advance reimburses 80% of eligible costs associated with the Company’s Thorn Hill manufacturing facility in Warrendale, Pennsylvania. Eos has now drawn a total of approximately $178 million of its DOE facility since 2024.

Line 2 entered commercial production in June 2026 and is being ramped toward its designed annual manufacturing capacity of approximately 2 GWh. Upon completion of the planned relocation of line 1 to Thorn Hill, subject to lender approvals, Eos expects Thorn Hill to support approximately 4 GWh of annual manufacturing capacity across two lines.

“Loan funding from the Office of Energy Dominance Financing has been critical in scaling Eos,” said Alessandro Lagi, Chief Financial Officer of Eos. “This advance reimburses a significant portion of the investment we have already made in Line 2 and returns that capital to the balance sheet, giving us more room to invest in the business while maintaining a disciplined approach to growth.”

“Running two lines under one roof drives more efficient use of our engineering, support resources, and labor,” said John Mahaz, Chief Operating Officer of Eos. “This enables the operation to increase productivity and optimize manufacturing cost.”

Eos expects to create jobs across 4 shifts to staff Line 2 in the Western Pennsylvania facility. The line continues to ramp toward full production as additional shifts come online, consistent with the Company’s phased manufacturing scale-up strategy.

About Eos Energy Enterprises

Eos is accelerating the shift to American energy independence with positively ingenious solutions that transform how the world stores power. The Company’s BESS features the innovative Znyth™ technology, a proven chemistry with readily available non-precious earth components, that is the pre-eminent safe, non-flammable, secure, stable, and scalable alternative to conventional technology. The Company’s BESS is ideal for utility-scale, microgrid, commercial, and industrial long-duration energy storage applications (i.e., 4 to 16+ hours), and provides customers with significant operational flexibility to effectively address current and future increased grid demand and complexity. For more information about Eos (NASDAQ: EOSE), visit eose.com.

Contacts

Investors: ir@eose.com
Media: media@eose.com

Forward Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include, but are not limited to, statements regarding the expected use and benefits of the loan proceeds; the continued development, installation, startup, operation, and ramp-up of Line 2; the expansion and scaling of Eos’ manufacturing operations and domestic manufacturing capacity; the timing and achievement of targeted production levels and annual manufacturing capacity; the anticipated staffing, hiring, and job creation associated with Line 2; the availability of future advances under the DOE-guaranteed loan facility; the receipt of any required lender or governmental approvals; and Eos’ ability to execute its growth strategy, and other statements that are not historical facts. The words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “might,” “plan,” “possible,” “potential,” “predict,” “project,” “should,” “target,” “will,” “would” and similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking. Forward-looking statements are based on our management’s current expectations and assumptions and are subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statements.

Important factors that could cause actual results to differ materially include, among others, risks relating to Eos’ ability to satisfy the conditions applicable to future advances under the DOE-guaranteed loan facility; complete, commission, operate, and ramp Line 2 on the anticipated schedule and within the applicable budget; achieve targeted production rates, staffing levels, hiring objectives, and manufacturing capacity; manage construction, equipment, supply-chain, labor, startup, and operational risks; obtain and maintain required governmental and third-party approvals; comply with the DOE loan documents and other financing arrangements; maintain adequate liquidity and secure additional financing when needed; realize anticipated manufacturing efficiencies, productivity improvements, cost benefits, and operational synergies associated with consolidating manufacturing activities; and scale manufacturing operations, and other risks described in Eos’ filings with the Securities and Exchange Commission (“SEC”).

Additional information concerning these and other risk factors is contained in the Company’s filings with the SEC, including its most recent Annual Report on Form 10-K and subsequent Quarterly Reports on Form 10-Q and Current Reports on Form 8-K.

Forward-looking statements speak only as of the date they are made. Should one or more of these risks or uncertainties materialize or should any of our assumptions prove incorrect, actual results may vary in material respects from those projected in these forward-looking statements. Readers are cautioned not to put undue reliance on forward-looking statements, and, except as required by law, the Company assumes no obligation and does not intend to update or revise these forward-looking statements, whether as a result of new information, future events, or otherwise.

The collaboration pairs utility-scale solar with lithium-ion energy storage and American-made, zinc-based long-duration energy storage to deliver new clean energy and capacity to the PJM grid

NEW YORK and PITTSBURGH, Sept. 02, 2026 (GLOBE NEWSWIRE) — MN8 Energy (MN8), a scaled power platform, Eos Energy Enterprises, Inc. (NASDAQ: EOSE), a U.S. manufacturer of zinc-based long-duration energy storage systems, and Google, today announced a collaboration to deliver new, clean, around-the-clock energy resources to the PJM grid in support of growing demand in the region.

Owned and operated by MN8, the project combines 86 MW of utility-scale solar, 10 MW/100 MWh of Eos’ Z3™ zinc-based long-duration energy storage, and 70 MW/280 MWh of lithium-ion energy storage. The integrated portfolio adds new clean, dispatchable capacity to the grid serving Google’s data centers in the region, including a planned project in West Virginia. The solar project is expected to reach commercial operation in 2028, with lithium-ion storage and long-duration storage following in 2029 and 2030, respectively.

An Innovative Capacity Solution

MN8 custom-designed its Mammoth Solar project in Kanawha County, West Virginia as an integrated utility-scale solar system with short- and long-duration storage that converts intermittent renewable generation into a single, dispatchable resource. The multi-technology solution fills a critical grid need by delivering clean capacity matched to data center load profiles. It’s the first commercial-scale long-duration energy storage deployment in West Virginia.

“At Google, we’re committed to backing solutions that both serve our data center capacity needs and accelerate progress toward cleaner, more affordable energy systems,” said Lucia Tian, Director, Advanced Energy Technologies at Google. “This collaboration with MN8 and Eos aims to deploy a smart portfolio of round-the-clock technology solutions to help power our digital infrastructure, while creating meaningful economic benefits for West Virginia.”

Under the agreement, Google will purchase the energy, capacity, and clean energy attributes of the project, advancing the company’s commitment to bring new capacity to the grids where it operates. The project is part of Google’s broader efforts to accelerate LDES technology commercialization with the aim to rapidly bring its potential to communities everywhere — making reliable, affordable electricity available around the clock and supporting the resilience of grids as they integrate growing amounts of renewable energy sources.

“This project reflects what MN8 does best: understanding a customer’s unique energy profile and building a solution around it,” said Jon Yoder, President and CEO of MN8 Energy. “Because Google was willing to pair next-generation storage with utility-scale solar, we could engineer proven and emerging technologies into one dispatchable resource – and deliver clean, around-the-clock power where the grid needs it most.”

Deploying American-made Long-Duration Energy Storage

The project marks Google’s first project that uses Eos’ American-made Z3 technology and the first project under the previously announced MN8-Eos Master Supply Agreement. The 10 MW/100 MWh system is designed to provide 10 hours of storage, extending the availability of solar generation beyond the shorter-duration energy storage resources and enabling the combined portfolio to deliver dependable capacity across more hours of the day. This project will prove how Eos’ aqueous zinc chemistry can support critical grid infrastructure.

“The grid needs more from every megawatt of new generation,” said Nathan Kroeker, Chief Commercial Officer at Eos. “Our work with Google is focused on deploying American-made long-duration storage where it solves real grid reliability challenges. Z3 extends the value of clean generation across more hours, strengthens the overall portfolio, and delivers more dependable capacity when it’s needed most.”

Creating Economic Benefits in West Virginia and Across the Region

Built on a reclaimed coal mine in West Virginia, this project is expected to create economic opportunity in a community with a long energy history. Based on MN8’s estimates, it represents up to $350 million in capital investment and is expected to generate approximately $4 million in property tax revenue for the county and local schools over the first 20 years of operations, with millions more in the 15-20 years that follow. Construction is expected to create approximately 200 jobs, with additional full- and part-time roles supporting the project throughout its operating life.

The project’s impact also extends across the PJM interconnection, connecting new energy infrastructure in West Virginia with American manufacturing and regional innovation. MN8 and Eos maintain significant operations and workforces across the Mid-Atlantic and Northeast, from MN8 projects spanning the region to Eos headquarters and manufacturing in Pittsburgh, Pennsylvania. Together, the companies support domestic supply chains and regional economies.

About MN8

MN8 is a scaled power platform that develops, owns and operates energy assets for the enterprises driving the new American economy. We help customers secure scaled power to support growth, resiliency and long-term energy goals. With more than 4 gigawatts of operating and under-construction assets across 29 states, MN8 is one of the largest independent power producers in the United States, serving more than 200 customers — including leading AI and hyperscale technology companies, Fortune 500 corporations and government agencies. Our integrated platform spans utility-scale solar, battery storage, EV and electrification infrastructure, and powered land capabilities. Founded within Goldman Sachs and operating independently since 2022, MN8 pairs institutional-grade financial discipline with full-lifecycle execution capabilities. MN8 is headquartered in New York, with offices in South Florida, Dallas and Madrid, Spain. Learn more at mn8.com.

About Eos Energy Enterprises
Eos is accelerating the shift to American energy independence with positively ingenious solutions that transform how the world stores power. The Company’s BESS features the innovative Znyth™ technology, a proven chemistry with readily available non-precious earth components, that is the pre-eminent safe, non-flammable, secure, stable, and scalable alternative to conventional technology. The Company’s BESS is ideal for utility-scale, microgrid, commercial, and industrial long-duration energy storage applications (i.e., 4 to 16+ hours) and provides customers with significant operational flexibility to cost effectively address current and future increased grid demand and complexity. For more information about Eos (NASDAQ: EOSE), visit eose.com.

About Google

Google’s mission is to organize the world’s information and make it universally accessible and useful. Through products and platforms like Search, Maps, Gmail, Android, Google Play, Google Cloud, Chrome and YouTube, Google plays a meaningful role in the daily lives of billions of people and has become one of the most widely-known companies in the world. Google is a subsidiary of Alphabet Inc.

Contacts

Investors: ir@eose.com

Media: media@eose.com

Forward Looking Statements

This press release includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements include, but are not limited to, statements regarding the expected timing, construction, commissioning, deployment, operation and performance of the project described herein; the expected commercial operation dates of the solar generation, lithium-ion storage and long-duration energy storage components of the project; the ability of the project to provide clean, dispatchable or dependable capacity to the PJM grid; the anticipated benefits of Eos’ Z3™ technology and aqueous zinc battery chemistry; the commercialization, deployment, adoption and market opportunities for long-duration energy storage; the anticipated benefits of Eos’ technology for grid reliability, energy resilience, renewable energy integration and data center power demand; expected economic, employment and community benefits associated with the project; anticipated domestic manufacturing, supply chain and regional economic impacts; and other statements that are not historical facts.

Forward-looking statements generally may be identified by words such as “anticipate,” “believe,” “could,” “expect,” “intend,” “may,” “plan,” “potential,” “project,” “should,” “target,” “will,” “would,” and similar expressions. These forward-looking statements are based on current assumptions, expectations and beliefs and are subject to substantial risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statements. Such risks and uncertainties include, among others, risks related to the development, financing, construction, commissioning and operation of the project; the ability of the parties to satisfy project development milestones and timelines; permitting, regulatory, interconnection, supply chain, manufacturing and procurement risks; the performance and reliability of the technologies deployed in the project; market acceptance and commercialization of long-duration energy storage technologies; changes in economic, market, regulatory or industry conditions; and other risks detailed from time to time in Eos’ filings with the U.S. Securities and Exchange Commission, including its Annual Report on Form 10-K and Quarterly Reports on Form 10-Q.

Eos undertakes no obligation to update or revise any forward-looking statements contained herein, whether as a result of new information, future events or otherwise, except as required by law.

Move completes the Pittsburgh manufacturing plan outlined on the Company’s second quarter earnings call and is contemplated within current full year revenue guidance

Company expects to offer each of the approximately 250 impacted employees a role at Thorn Hill, Building 200 or corporate offices

Turtle Creek remains an active Eos site, with Cube assembly, testing and shipping continuing in Building 200

PITTSBURGH, Aug. 27, 2026 (GLOBE NEWSWIRE) — Eos Energy Enterprises, Inc. (NASDAQ: EOSE) (“Eos” or the “Company”), an innovator in designing, manufacturing and providing zinc-based long-duration energy storage (LDES) systems sourced and manufactured in the United States, today announced it will consolidate its battery manufacturing operations at Thorn Hill, its 432,000-square-foot production facility in Warrendale, Pa. Cube assembly, testing and shipping will continue at the Company’s Turtle Creek, Pa. location.

Eos began commercial production at Thorn Hill in June 2026, less than six months after entering the facility. Consolidating all battery manufacturing into a single site shortens material flow, improves production processes and manufacturing efficiencies. When completed, the Company expects the consolidation to reduce conversion costs by approximately 10% to 15%, with benefits beginning in 2027. Once both lines are operating, Thorn Hill nameplate capacity is expected to be approximately 4 GWh.

The Company discussed the consolidation on its second quarter earnings call on August 5, 2026. As disclosed at that time, the Company’s full-year 2026 revenue guidance was $300 million to $350 million, and the anticipated transition and its associated costs were contemplated within that guidance. The Company currently expects to manage the transition without any impact on customer delivery commitments.

“We built our manufacturing foundation in Turtle Creek, and we have outgrown the footprint we started with. Bringing battery manufacturing together at Thorn Hill gives us the space and capacity we need for the next phase of growth while keeping jobs, investment and opportunity right here in Allegheny County,” said Joe Mastrangelo, Chief Executive Officer. “We are now moving forward with the plan described to investors in August, subject to required approvals.”

Commitment to Employees and Community
The Company is providing each of the approximately 250 impacted employees, including approximately 205 union-represented employees, with an employment opportunity or work-location assignment at Thorn Hill, Building 200 or the Company’s corporate offices, subject, for represented employees, to applicable collective bargaining obligations and the employee-placement process being conducted with the United Steelworkers (USW).

“Turtle Creek is where this company started, and we remain committed to that community,” said Michelle Buczkowski, Chief Commercial Officer. “Every employee impacted by this move will have a job offer or a location assignment waiting for them. The Commonwealth and the County worked alongside us to find a path that kept manufacturing and jobs in Allegheny County. That kind of partnership is a big reason Southwestern Pennsylvania is where Eos continues to grow.”

The move is expected to begin in the fourth quarter of 2026 and be completed in early 2027, subject to customary lender approvals.

Capacity and Cost
Thorn Hill provides the floor space, power, and structural requirements needed to support multiple production lines. Running lines in a consolidated footprint improves production output per square foot, simplifies material handling, and increases overhead utilization.

“With the validation and continued ramp of Line 2 at Thorn Hill, we’re ready to execute the next phase of our manufacturing plan with the relocation of Line 1,” said John Mahaz, Chief Operating Officer. “We have already established production capability at Thorn Hill before contemplating the line move from Turtle Creek. That allows us to carefully sequence the move to maintain production volumes and protect customer delivery commitments.”

American Battery Manufacturing Growing in Pittsburgh
Earlier this year, Eos relocated its corporate headquarters to Nova Place on Pittsburgh’s North Shore and began production at Thorn Hill. After outgrowing its original manufacturing footprint in Turtle Creek, the Company conducted a national search and chose to continue investing in Allegheny County. As part of this transition, battery manufacturing operations currently housed in Building 700 will relocate to Thorn Hill. Building 200 will remain operational and continue supporting Cube production.

The Eos Z3™ battery uses a zinc-based, non-flammable chemistry that stores energy for four to 16-plus hours. It is designed, built and shipped from Pittsburgh, with approximately 91% domestic content and a predominantly U.S.-based supply chain.

Contacts

Investors: ir@eose.com
Media: media@eose.com

Forward Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include, but are not limited to, statements regarding the anticipated timing, execution, completion and expected benefits of the Company’s manufacturing consolidation initiative; expected cost reductions, operational efficiencies, production capacity and customer delivery performance; anticipated employee transitions; the timing and receipt of governmental and other approvals, including any required approvals from the U.S. Department of Energy; and the Company’s expectations regarding the impact of the consolidation on its business, operations and financial performance. These statements are based on current expectations, estimates, forecasts and assumptions and are subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such forward-looking statements, including risks associated with execution of the consolidation, production interruptions, qualification and ramp-up of manufacturing lines, employee retention and transition, customer demand and delivery schedules, supply chain conditions, the timing and receipt of required approvals, and other risks described in the Company’s filings with the Securities and Exchange Commission. Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date made. Except as required by law, Eos undertakes no obligation to update or revise any forward-looking statement to reflect events or circumstances after the date of this release.

Nathan Kroeker to depart following transition period

PITTSBURGH, Aug. 25, 2026 (GLOBE NEWSWIRE) — Eos Energy Enterprises, Inc. (NASDAQ: EOSE) (“Eos” or the “Company”), America’s leading innovator in designing, manufacturing, and providing zinc-based long-duration energy storage (LDES) systems sourced and manufactured in the United States, today announced the appointment of Michelle Buczkowski as Chief Commercial Officer, effective August 24, 2026. Buczkowski succeeds Nathan Kroeker, who will leave the Company on October 20, 2026, following a planned transition period.

Federal, state, and local energy policy influences every commercial conversation. A customer evaluating a storage project weighs incentives alongside price and delivery. Sales, business development, government affairs, marketing, and communications now report to Buczkowski, who owns the path from first customer engagement through order intake and revenue conversion.

Buczkowski has served as Chief Administrative Officer since November 2025, leading government affairs, marketing, communications, and human resources. She secured the $24 million Pennsylvania grant behind the Company’s manufacturing expansion, built the workforce pipeline that staffs it, and led the engagement that positioned Eos for selection into the Golden Dome program. The utility, regulator, and agency relationships she built sit behind a meaningful share of the Company’s commercial pipeline.

Buczkowski brings over 20 years of energy-sector leadership to the position. Prior to joining Eos, she held leadership roles at Duquesne Light Company and Consol Energy/CNX Resources, working with utilities, regulators, and agencies across regulated utility and energy production businesses.

“Michelle turns relationships into results,” said Joe Mastrangelo, Chief Executive Officer of Eos. “She secured the state support behind our factory, built the team that staffs it, and opened the federal channel that led to our Department of War partnership. I also want to thank Nathan Kroeker, who strengthened our balance sheet when it mattered most and hands over a commercial organization built to deliver.”

“Eos sits where energy security, domestic manufacturing, and grid demand meet,” said Buczkowski. “Utilities and data center developers are asking for storage they can site and service in the United States, and federal policy is pointed the same way. My job is converting that into orders, revenue, and customer relationships that last. We have the technology, the factory, and the team. The work ahead is execution.”

Leadership Transition

Kroeker joined Eos in January 2023 as Chief Financial Officer and became Chief Commercial Officer in 2025. As Chief Financial Officer, he led the financing work that secured over $2 billion in capital and financing commitments, including the Cerberus Delayed Draw Term Loan and the Department of Energy Loan Guarantee, re-capitalizing the business and strengthening the balance sheet through the Company’s manufacturing scale-up. As Chief Commercial Officer, he expanded engagement with developers, utilities, hyperscalers, and strategic partners and grew the Company’s order backlog and opportunity pipeline.

“It has been a privilege to be part of Eos as we’ve positioned the Company to capture the market opportunity, and deliver on its growth plans,” said Kroeker. “I am proud of what this team has built and confident in where it is going. Eos has the foundation, the customers, and the leadership to execute on what is ahead. I have had the pleasure of working alongside Michelle for the past 2 years and I’m confident that she is the right person to lead the Commercial organization going forward.”

Buczkowski and Kroeker will work together through October 20, 2026, to complete the transition.

About Eos Energy Enterprises

Eos is accelerating the shift to American energy independence with positively ingenious solutions that transform how the world stores power. The Company’s BESS features the innovative Znyth™ technology, a proven chemistry with readily available non-precious earth components, that is the pre-eminent safe, non-flammable, secure, stable, and scalable alternative to conventional technology. The Company’s BESS is ideal for utility-scale, microgrid, commercial, and industrial long-duration energy storage applications (i.e., 4 to 16+ hours), and provides customers with significant operational flexibility to effectively address current and future increased grid demand and complexity. For more information about Eos (NASDAQ: EOSE), visit eose.com.

Contacts

Investors: ir@eose.com
Media: media@eose.com

Forward Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include, but are not limited to, statements regarding Eos’ leadership transition, commercial strategy, growth opportunities, customer demand, order intake, revenue generation, commercial pipeline, opportunity pipeline, backlog conversion, future operating performance, and other statements that are not historical facts. The words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “might,” “plan,” “possible,” “potential,” “predict,” “project,” “should,” “would” and similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking. Forward-looking statements are based on our management’s current expectations and assumptions and are subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statements.

Important factors that could cause actual results to differ materially include, among others, risks relating to Eos’ ability to execute its commercial strategy, convert opportunities and backlog into revenue, manage growth, retain key personnel, maintain customer and strategic relationships, secure financing, scale manufacturing operations, comply with applicable laws and regulations, and other risks described in Eos’ filings with the Securities and Exchange Commission (“SEC”).

Additional information concerning these and other risk factors is contained in the Company’s filings with the SEC, including its most recent Annual Report on Form 10-K and subsequent Quarterly Reports on Form 10-Q and Current Reports on Form 8-K.

Forward-looking statements speak only as of the date they are made. Should one or more of these risks or uncertainties materialize or should any of our assumptions prove incorrect, actual results may vary in material respects from those projected in these forward-looking statements. Readers are cautioned not to put undue reliance on forward-looking statements, and, except as required by law, the Company assumes no obligation and does not intend to update or revise these forward-looking statements, whether as a result of new information, future events, or otherwise.

• Post quarter end, booked a $100 million purchase order for Phase I of the Blanquilla project under Frontier Power USA’s (FPUSA) 2 GWh Capacity Reservation Agreement
• Awarded Golden Dome for America contract and entered strategic partnership with the Department of War to deploy American-made long-duration energy storage for critical defense infrastructure
• Expanded backlog to a record $807 million, up 25% sequentially, driven by orders from four new and two repeat customers
• Secured $263 million in gross proceeds for FPUSA, exceeding the joint venture’s initial equity target and expected to support more than $1 billion of deployable project capital
• Generated $68.8 million in revenue; combined revenue over the last two quarters exceeded full-year 2025 revenue
• Launched commercial production on Line 2 at the Thorn Hill facility, realizing an initial 10% improvement in battery cycle time compared to Line 1, with further optimization opportunities expected as production ramps
• Surpassed 6.5 GWh of cumulative energy discharged by Eos technology, up nearly half a gigawatt-hour over the past three months, with projects totaling more than 200 MWh of incremental energy expected to begin operations by year-end 2026
• Tightened full-year 2026 revenue guidance to $300 million to $350 million, from the prior range of $300 million to $400 million, and is evaluating the timing of consolidating manufacturing operations into its Thorn Hill facility to drive efficiencies, enhance margins, and support long-term profitability

PITTSBURGH, Aug. 05, 2026 (GLOBE NEWSWIRE) — Eos Energy Enterprises, Inc. (NASDAQ: EOSE) (“Eos” or the “Company”), America’s leading innovator in designing, manufacturing, and providing zinc-based long- duration energy storage (LDES) systems sourced and manufactured in the United States, today announced its financial results for the second quarter ended June 30, 2026.

Second Quarter Highlights

• Revenue totaled $68.8 million, a 351% year-over-year increase, driven by 207% higher cube deliveries.
• Gross loss was $48.8 million, compared to $31.0 million in the prior-year period. Gross margin was negative 71%, improving 132 percentage points year over year and 7 percentage points sequentially. The improvement reflects increased production volumes and lower conversion costs, partially offset by temporary manufacturing underutilization as operations ramped across two facilities and higher project costs to support a growing installed base.
• Adjusted gross loss, excluding stock-based compensation and depreciation, was $42.9 million.
• Net loss attributable to shareholders totaled $275.7 million, primarily driven by mark-to-market fair value adjustments on certain liabilities, reflecting changes in the Company’s end-of-quarter stock price.
• Adjusted EBITDA loss was $71.4 million, compared to an adjusted EBITDA loss of $51.6 million in the prior-year period. Adjusted EBITDA margin improved by 235 percentage points year over year and 16 percentage points sequentially, reflecting continued operational efficiencies and increased leverage on higher revenue.
• Total cash of $364.1 million, including restricted cash, as of June 30, 2026.
• Backlog of $807 million, representing 3.4 GWh, up 25% sequentially, with a commercial opportunity pipeline of $24.6 billion, as of June 30, 2026.

“We delivered more revenue in the first half of 2026 than in all of 2025,” said Joe Mastrangelo, Chief Executive Officer of Eos. “The market wants a U.S. supplier of long-duration energy storage that can deliver at scale. Our focus now is converting that demand into profitable growth. The decisions we are making today, including the consolidation of manufacturing into Thorn Hill, are about building a lower-cost operation that can support that demand.”

2026 Revenue Outlook

Eos is tightening its full-year 2026 revenue guidance to $300 million to $350 million, from its prior range of $300 million to $400 million. The revised outlook reflects the Company’s evaluation of the timing associated with consolidating its production lines into a single manufacturing footprint in Thorn Hill. The consolidation initiative is expected to improve manufacturing efficiency, optimize capacity utilization, enhance margins, and strengthen the Company’s long-term operating profile.

Recent Business Highlights

Frontier Power USA

FPUSA exceeded its initial $250 million equity target, with approximately $263 million of gross proceeds raised from Eos, Cerberus Capital Management, and Hudson Bay Capital Management. With Eos’ Rights Offering now complete, the platform has secured the equity needed to advance its next phase of growth. These commitments, including the gross proceeds of the Rights Offering, are dedicated to FPUSA and will be used to fund project development at the joint venture. FPUSA is expected to have access to more than $1 billion of deployable project capital and has established a development pipeline totaling approximately 16 GWh. Approximately 5.0 GWh of projects have been acquired, selected, or are under active diligence, including approximately 1.8 GWh that are under construction or approaching notice to proceed.

In anticipation of the formation of FPUSA, Eos generated $55.0 million of revenue in the second quarter from a pre-existing project executed using financing provided by an affiliate of Cerberus prior to the closing of the joint venture. The project contributed approximately 80% of total second quarter revenue and was contributed to FPUSA upon closing, which occurred on August 4, 2026. As of June 30, 2026, this project and FPUSA represented 49% of Eos’ backlog volume.

Commercial Momentum
Commercial momentum remained strong during and after the quarter. Backlog increased to a record $807 million, up 25% sequentially and 20% year over year, driven by orders from four new customers and two repeat customers. During the quarter, Eos received the first purchase order supporting the 100 MW / 400 MWh Redbird project. Upon FPUSA closing on August 4, 2026, this purchase order was transferred to FPUSA, where it became part of the parties’ 2 GWh Capacity Reservation Agreement.

Eos also expanded its international presence through a binding Master Supply Agreement with CAPAC Energy, establishing an exclusive distribution partnership across Germany, Austria, and Switzerland with an initial 750 MWh commitment and the potential to scale to 2 GWh through 2031.

Subsequent to quarter end, Eos announced a strategic partnership with the Department of War and was awarded a contract supporting the Golden Dome for America initiative to deploy its Eos Z3™ zinc-based long-duration energy storage technology at a critical defense installation. The Company also received a $100 million purchase order from FPUSA for Phase I of the Blanquilla project. These milestones reflect continued commercial execution, expanding market opportunities, and growing demand for Eos’ safe, American-made energy storage technology, further strengthening the Company’s long-term growth outlook.

Launch of Commercial Production at Eos’ New Thorn Hill Facility
Eos launched commercial production on Battery Line 2 at its Thorn Hill facility in mid-June, on schedule and in line with prior expectations, expanding manufacturing capacity to support growing customer demand. The Company is currently operating one partial production shift as part of its planned ramp strategy and remains on track to reach full production capacity in the fourth quarter. During the quarter, Eos completed Site Acceptance Testing and commissioning across all sub-assembly operations, bringing the full automation online. Line 2 continues to demonstrate strong initial operational performance, with cycle times running approximately 10% faster on the battery line and 11% faster on the bipolar line compared to Line 1, reflecting continued improvements in manufacturing efficiency and throughput.

Earnings Conference Call and Webcast

Eos will host a conference call to discuss its second quarter 2026 results on August 5, 2026, at 8:30 a.m. ET. The live webcast of the earnings call will be available on the “Investor Relations” page of the Company’s website at Eos Investors or may be accessed using this link Eos Energy Second Quarter 2026 Earnings Conference Call. To avoid delays, we encourage participants to join the conference call fifteen minutes ahead of the scheduled start time.

The conference call replay will be available via webcast through Eos’ investor relations website for twelve months following the live presentation. The webcast replay will be available from approximately 11:30 a.m. ET on August 5, 2026, and can be accessed by visiting Eos Investors.

About Eos Energy Enterprises
Eos is accelerating the shift to American energy independence with positively ingenious solutions that transform how the world stores power. The Company’s BESS features the innovative Znyth™ technology, a proven chemistry with readily available non-precious earth components, that is the pre-eminent safe, non-flammable, secure, stable, and scalable alternative to conventional technology. The Company’s BESS is ideal for utility-scale, microgrid, commercial, and industrial long-duration energy storage applications (i.e., 4 to 16+ hours), and provides customers with significant operational flexibility to effectively address current and future increased grid demand and complexity. For more information about Eos (NASDAQ: EOSE), visit eose.com.

Contacts
Investors: ir@eose.com
Media: media@eose.com

Forward Looking Statements
Except for the historical information contained herein, the matters set forth in this press release are forward-looking statements within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include, but are not limited to, statements regarding our expected revenue for the fiscal year ending December 31, 2026, our path to profitability and strategic outlook, statements regarding orders backlog and opportunity pipeline, statements regarding the joint venture, the transactions related thereto, and any anticipated benefits of the joint venture, statements regarding our expectation that we can continue to increase product volume on our state-of-the-art manufacturing lines, statements regarding our future expansion and its impact on our ability to scale up operations and increase margins, statements regarding the expected impact of DawnOS^TM on efficiency operating costs, and grid coordination, statements regarding the launch of Indensity™ and our expectations for the architecture and its expected energy density, statements regarding our expectation that we can continue to strengthen our overall supply chain, statements that refer to outlook, projections, forecasts or other characterizations of future events or circumstances, including any underlying assumptions. The words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “might,” “plan,” “possible,” “potential,” “predict,” “project,” “should,” “would” and similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking. Forward-looking statements are based on our management’s beliefs, as well as assumptions made by, and information currently available to, them. Because such statements are based on expectations as to future financial and operating results and are not statements of fact, actual results may differ materially from those projected.

Factors which may cause actual results to differ materially from current expectations include, but are not limited to: changes adversely affecting the business in which we are engaged; our ability to forecast trends accurately; our ability to generate cash, service indebtedness and incur additional indebtedness; our ability to raise financing in the future; our ability to obtain stockholder approval of an increase to our authorized common stock; risks associated with the joint venture, including the risk that the joint venture will not be completed on the anticipated timeline or terms, or at all, and risks associated with FPUSA’s ability to develop, finance, construct and monetize projects; risks associated with the credit agreement with Cerberus, including risks of default, and dilution of outstanding common stock; our customers’ ability to secure project financing; the amount of final tax credits available to our customers or to Eos pursuant to the Inflation Reduction Act, including potential impacts from any repeal or modifications of the legislation; the timing and availability of future funding under the Department of Energy Loan Facility; risks associated with the successful execution and expected benefits of any manufacturing consolidation initiatives; our ability to continue to develop efficient manufacturing processes to scale and to forecast related costs and efficiencies accurately; fluctuations in our revenue and operating results; competition from existing or new competitors; our ability to convert firm order backlog and pipeline to revenue; risks associated with security breaches in our information technology systems; risks related to legal proceedings or claims; risks associated with evolving energy policies in the United States and other countries and the potential costs of regulatory compliance; risks associated with changes to the U.S. trade environment; our ability to maintain the listing of our shares of common stock on NASDAQ; our ability to grow our business and manage growth profitably, maintain relationships with customers and suppliers and retain our management and key employees; risks related to adverse changes in general economic conditions, including inflationary pressures and increased interest rates; risk from supply chain disruptions and other impacts of geopolitical conflict; changes in applicable laws or regulations; the possibility that Eos may be adversely affected by other economic, business, and/or competitive factors; other factors beyond our control; and other risks and uncertainties indicated.

The forward-looking statements contained in this press release are also subject to additional risks, uncertainties, and factors, including those more fully described in the Company’s most recent filings with the Securities and Exchange Commission (the “SEC”), including the Company’s most recent Annual Report on Form 10-K and subsequent reports on Forms 10-Q and 8-K. Further information on potential risks that could affect actual results will be included in the subsequent periodic and current reports and other filings that the Company makes with the Securities and Exchange Commission from time to time. Moreover, the Company operates in a very competitive and rapidly changing environment, and new risks and uncertainties may emerge that could have an impact on the forward-looking statements contained in this press release.

Forward-looking statements speak only as of the date they are made. Should one or more of these risks or uncertainties materialize or should any of our assumptions prove incorrect, actual results may vary in material respects from those projected in these forward-looking statements. Readers are cautioned not to put undue reliance on forward-looking statements, and, except as required by law, the Company assumes no obligation and does not intend to update or revise these forward-looking statements, whether as a result of new information, future events, or otherwise.

Key Metrics

Backlog. Our backlog represents the amount of revenue that we expect to realize from existing agreements with our customers for the sale of our battery energy storage systems and performance of services. The backlog is calculated by adding new orders in the current fiscal period to the backlog as of the end of the prior fiscal period and then subtracting the shipments in the current fiscal period. If the amount of an order is modified or cancelled, we adjust orders in the current period and our backlog accordingly, but do not retroactively adjust previously published backlogs. There is no comparable U.S. GAAP financial measure to backlog. We believe that the backlog is a useful indicator regarding the future revenue of our Company.

Pipeline. Our pipeline represents projects for which we have submitted technical proposals or non-binding quotes plus letters of intent (“LOI”) or firm commitments from customers. Pipeline does not include lead generation projects.

Booked Orders. Booked orders are orders where we have legally binding agreements with a Purchase Order (“PO”) or Master Supply Agreement (“MSA”) executed by both parties.

Non-GAAP Financial Measures
To provide investors with additional information regarding our financial results, we have disclosed in this earnings release non-GAAP financial measures, including adjusted EBITDA and adjusted gross profit (loss), which are non-GAAP financial measures as defined under the rules of the SEC. These non-GAAP financial measures should be considered supplemental to, and not a substitute for or superior to, the financial measures of the Company’s calculated in accordance with U.S. generally accepted accounting principles (“GAAP”). The Company believes adjusted EBITDA and adjusted gross profit (loss) are useful measures in evaluating its financial and operational performance distinct and apart from financing costs, certain non-cash expenses and non-operational expenses.

We believe that non-GAAP financial information, when taken collectively, may be helpful to our investors in assessing our operating performance. There are a number of limitations related to the use of these non-GAAP financial measures and their nearest GAAP equivalents. For example, the Company’s definitions of non-GAAP financial measures may differ from non-GAAP financial measures used by other companies. Below is a description of the non-GAAP financial information included herein as well as reconciliations to its most directly comparable GAAP measure. You should review the reconciliations below but not rely on any single financial measure to evaluate our business.

Adjusted EBITDA is defined as earnings (net loss) attributable to Eos adjusted for interest expense, income tax, depreciation and amortization, non-cash stock-based compensation expense, change in fair value of debt and derivatives, debt extinguishment, and other non-cash or non-recurring items as determined by management which it does not believe to be indicative of its underlying business trends. Adjusted gross profit (loss) is defined as gross profit (loss) adjusted to exclude stock-based compensation, depreciation and amortization.

Approximately $263 million of gross equity raised in support of FPUSA

Expected investment, together with approximately 75% loan-to-value project debt, is expected to support more than $1 billion of deployable project capital

FPUSA has approximately 16 GWh of pipeline opportunities with approximately 1.8 GWh under construction or expected to shortly reach notice to proceed

PITTSBURGH, Pa., July 23, 2026 (GLOBE NEWSWIRE) — Eos Energy Enterprises, Inc. (NASDAQ: EOSE) (“Eos” or the “Company”), America’s leading innovator in designing, manufacturing, and providing zinc-based long duration energy storage (LDES) systems sourced and manufactured in the United States, today announced the expected initial capitalization of Frontier Power USA (“FPUSA”), the Company’s joint venture with Cerberus Capital Management established to develop, finance, own and operate long-duration energy storage projects utilizing Eos technology.

The expected initial capitalization includes proceeds from Eos’ rights offering, which expired on July 21, 2026 and raised gross proceeds of approximately $37.7 million as well as its previously announced equity offering. The rights offering enabled holders of its common stock and holders of its warrants to purchase common stock issued on April 14, 2023, May 17, 2023, December 19, 2023 and November 21, 2025 as of 5:00 pm New York time on July 1, 2026, to participate on a pro rata basis. By aligning institutional capital with existing stockholders, Eos broadened participation while establishing the equity foundation necessary to launch FPUSA at scale.

“When we announced Frontier Power USA, we set a target of approximately $250 million in equity raised to capitalize the platform,” said Joe Mastrangelo, Eos Chief Executive Officer. “Today that target is expected to be exceeded, funded through our rights offering and commitments from Hudson Bay Capital and Cerberus Capital Management. I exercised my rights in this offering, along with other members of our Board and management team, because we believe this capital structure positions Eos for sustained growth and long-term shareholder value.”

With the completion of the rights offering, Eos has secured the capital necessary to fund its investment in FPUSA which, together with the previously announced investment from Hudson Bay Capital Management and the commitment from Cerberus Capital Management results in an expected gross proceeds raised above the approximately $250 million aggregate equity target established when the joint venture was first announced. FPUSA is expected to have approximately $263 million of gross proceeds raised from three holders: approximately $113 million from Eos through its rights offering and previously announced offering, $100 million from Cerberus Capital Management, and $50 million from Hudson Bay. Along with a broad financing package expected to be available to FPUSA, this equity base is expected to support more than $1 billion of deployable project capital.

Project financing has historically favored incumbent technologies with decades of operating history and established lending markets. FPUSA addresses that barrier directly. The platform provides the capital and ownership structure needed to move Eos technology from late-stage development into construction and operation at scale.

FPUSA has a pipeline totaling approximately 16 GWh of opportunities. Approximately 5.0 GWh has been purchased, selected or is under active diligence for inclusion within the platform, including approximately 1.8 GWh purchased or selected that are under construction or approaching notice to proceed. These projects are expected to support equipment deliveries and project revenue through 2026 and into 2027, while establishing the foundation for future deployment.

Upon closing, FPUSA is expected to fund project development, equipment procurement, construction and long-term ownership of energy storage assets utilizing Eos technology. The initial capitalization is expected to close in early August, subject to customary closing conditions.

This press release shall not constitute an offer to sell, or a solicitation of an offer to buy any securities, nor shall there be any sale of any securities in any state or jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction. In addition, this press release does not constitute an offer to sell or the solicitation of an offer to buy any securities, including any securities in a rights offering.

About Eos Energy Enterprises

Eos is accelerating the shift to American energy independence with positively ingenious solutions that transform how the world stores power. The Company’s BESS features the innovative Znyth™ technology, a proven chemistry with readily available non-precious earth components, that is the pre-eminent safe, non-flammable, secure, stable, and scalable alternative to conventional technology. The Company’s BESS is ideal for utility-scale, microgrid, commercial, and industrial long-duration energy storage applications (i.e., 4 to 16+ hours), and provides customers with significant operational flexibility to effectively address current and future increased grid demand and complexity.

Contacts
Eos Energy Enterprises, Inc.
Investors:            ir@eose.com
Media:                 media@eose.com

Forward Looking Statements and Important Information

Except for the historical information contained herein, the matters set forth in this press release are forward-looking statements within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include, but are not limited to, statements regarding the rights offering, and our contemplated investment in Frontier Power USA. The words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intends,” “may,” “might,” “plan,” “possible,” “potential,” “predict,” “project,” “should,” “would” and similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking. Forward-looking statements are based on our management’s beliefs, as well as assumptions made by, and information currently available to, them. Because such statements are based on expectations as to future results and are not statements of fact, actual results may differ materially from those projected.

Factors which may cause actual results to differ materially from current expectations include, but are not limited to: changes adversely affecting the business in which we are engaged; our ability to forecast trends accurately; our ability to generate cash, service indebtedness and incur additional indebtedness; our ability to raise financing in the future; our ability to complete a rights offering to raise funds for purposes of capitalizing Frontier Power USA, including satisfying applicable conditions to the rights offering; risks associated with the joint venture, including the risk that the joint venture will not be completed on the anticipated terms if at all; risks associated with the credit agreement with Cerberus, including risks of default, and dilution of outstanding common stock; our customers’ ability to secure project financing; the amount of final tax credits available to our customers or to Eos pursuant to the Inflation Reduction Act, including potential impacts from any repeal or modifications of the legislation; the timing and availability of future funding under the Department of Energy Loan Facility; our ability to continue to develop efficient manufacturing processes to scale and to forecast related costs and efficiencies accurately; fluctuations in our revenue and operating results; competition from existing or new competitors; our ability to convert firm order backlog and pipeline to revenue; risks associated with security breaches in our information technology systems; risks related to legal proceedings or claims; risks associated with evolving energy policies in the United States and other countries and the potential costs of regulatory compliance; risks associated with changes to the U.S. trade environment; our ability to maintain the listing of our shares of common stock on NASDAQ; our ability to grow our business and manage growth profitably, maintain relationships with customers and suppliers and retain our management and key employees; risks related to adverse changes in general economic conditions, including inflationary pressures and increased interest rates; risk from supply chain disruptions and other impacts of geopolitical conflict; changes in applicable laws or regulations; the possibility that Eos may be adversely affected by other economic, business, and/or competitive factors; other factors beyond our control; risks related to adverse changes in general economic conditions; and other risks and uncertainties indicated.

The forward-looking statements contained in this press release are also subject to additional risks, uncertainties, and factors, including those more fully described in the Company’s most recent filings with the Securities and Exchange Commission, including the Company’s most recent Annual Report on Form 10-K and subsequent reports on Forms 10-Q and 8-K. Further information on potential risks that could affect actual results will be included in the subsequent periodic and current reports and other filings that the Company makes with the Securities and Exchange Commission from time to time. Moreover, the Company operates in a very competitive and rapidly changing environment, and new risks and uncertainties may emerge that could have an impact on the forward-looking statements contained in this press release.
Forward-looking statements speak only as of the date they are made. Should one or more of these risks or uncertainties materialize or should any of our assumptions prove incorrect, actual results may vary in material respects from those projected in these forward-looking statements. Readers are cautioned not to put undue reliance on forward-looking statements, and, except as required by law, the Company assumes no obligation and does not intend to update or revise these forward-looking statements, whether as a result of new information, future events, or otherwise.

This press release includes information about a proposed series of transactions, including the formation of Frontier Power USA Parent, LLC, a Delaware limited liability company (the “JV Company”), a joint venture between us, CCM Frontier JV Holdco, LLC, an affiliate of Cerberus Capital Management, L.P. (“CCM Frontier”) and HBC MSF Capital Solutions Blocker II LLC, an affiliate of Hudson Bay Capital Management LP (“HBC”), an investment by CCM Frontier of $100 million in JV Company, an investment by HBC of $50 million in JV Company, the completion of our rights offering to fund our investment in JV Company, and certain commercial arrangements to be entered into between us and JV Company (collectively, the “Proposed Transactions”). We, CCM Frontier and HBC have entered into a binding term sheet with respect to the Proposed Transactions. However, the completion of the Proposed Transactions remains subject to a number of conditions and uncertainties, including completion of the rights offering, the receipt of required third party-approvals, including the approval of the Department of Energy, the negotiations and entry into definitive agreements for the Proposed Transactions and the negotiation of certain terms of the Proposed Transactions. While we currently intend to take the actions within our control to complete the Proposed Transactions on the contemplated terms and timeline, there can be no assurances that the Proposed Transactions will be completed on the contemplated terms or timeline or that the Proposed Transactions will be completed at all.

PITTSBURGH, July 23, 2026 (GLOBE NEWSWIRE) — Eos Energy Enterprises, Inc. (NASDAQ: EOSE) (“Eos” or the “Company”), America’s leading innovator in designing, manufacturing, and providing zinc-based long duration energy storage (LDES) systems sourced and manufactured in the United States, today announced results of its rights offering, which expired at 5:00 p.m. Eastern Time on July 21, 2026 (the “Expiration Date”). Rights that were not exercised by 5:00 p.m. Eastern Time on the Expiration Date have expired and are no longer exercisable.

Pursuant to the rights offering, the Company distributed Rights to acquire an aggregate of 27,367,171 units (the “Units”) on July 2, 2026 (the “Distribution Date”) at a price per Unit of $5.481. Each Unit consists of one share of the Company’s common stock and 0.4388 of a warrant to purchase one share of the Company’s common stock at an exercise price of $5.481 per whole share. Based on a tabulation by Broadridge Corporate Issuer Solutions, Inc. (the “Subscription Agent”), as of the Expiration Date, the Company received subscriptions for 6,885,218 Units offered in the rights offering. The common stock and warrants comprising the Units will separate upon the closing of the rights offering and will be issued individually. The Company expects the Subscription Agent to distribute such shares and warrants, as well as the sale proceeds, on or about August 3, 2026. The Company expects to receive aggregate gross proceeds from the rights offering of $37.7 million.

The Company elected to conduct the rights offering to provide an opportunity for holders of its common stock and holders of its warrants to purchase common stock issued on April 14, 2023, May 17, 2023, December 19, 2023 and November 21, 2025 as of 5:00 pm New York time on July 1, 2026 to participate in the equity financing on a pro rata basis.

Including proceeds from the rights offering, the previously announced investment from Hudson Bay Capital Management, and the commitment from Cerberus Capital Management, approximately $263 million in gross proceeds have been raised in support of Frontier Power USA. This exceeds the Company’s target at the announcement of the planned formation of Frontier Power USA and is expected to initially support more than $1 billion of deployable project capital.

The Company has applied to have the Warrants admitted to trading on the Nasdaq Capital Market under the symbol “EOSEW”. However, no assurance can be given that such listing application will be approved. If the Warrants listing application is not approved, the Warrants may not be traded on Nasdaq when issued, or at all.

The Company conducted the rights offering pursuant to an effective shelf registration statement, including a base prospectus, under the Securities Act. The rights offering is being made only by means of a separate prospectus supplement (and the accompanying base prospectus), which contains the detailed terms of the rights offering and has been filed with the SEC on July 2, 2026. Copies of the prospectus supplement and accompanying prospectus relating to the rights offering may be obtained for free by visiting the Securities and Exchange Commission’s website at www.sec.gov. Questions about the rights offering and requests for copies of the prospectus relating to the rights offering may be directed to Sodali & Co., the Company’s information agent for the rights offering, at the address and phone number provided at the end of this release. The completion of the rights offering remains subject to the satisfaction of certain conditions.

This press release does not constitute an offer to sell or the solicitation of an offer to buy any securities, nor will there be any sale of securities in any state or other jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

About Eos Energy Enterprises

Eos is accelerating the shift to American energy independence with positively ingenious solutions that transform how the world stores power. The Company’s BESS features the innovative Znyth™ technology, a proven chemistry with readily available non-precious earth components, that is the pre-eminent safe, non-flammable, secure, stable, and scalable alternative to conventional technology. The Company’s BESS is ideal for utility-scale, microgrid, commercial, and industrial long-duration energy storage applications (i.e., 4 to 16+ hours), and provides customers with significant operational flexibility to effectively address current and future increased grid demand and complexity.

Contacts
Eos Energy Enterprises, Inc.

Information Agent
Sodali & Co.
(203) 658-9400 (For Banks and Brokers)
(833) 225-0490 (Toll Free)
EOSE.info@investor.sodali.com

Forward Looking Statements and Important Information

Except for the historical information contained herein, the matters set forth in this press release are forward-looking statements within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include, but are not limited to, statements regarding the rights offering, and our contemplated investment in Frontier Power USA. The words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intends,” “may,” “might,” “plan,” “possible,” “potential,” “predict,” “project,” “should,” “would” and similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking. Forward-looking statements are based on our management’s beliefs, as well as assumptions made by, and information currently available to, them. Because such statements are based on expectations as to future results and are not statements of fact, actual results may differ materially from those projected.

Factors which may cause actual results to differ materially from current expectations include, but are not limited to: changes adversely affecting the business in which we are engaged; our ability to forecast trends accurately; our ability to generate cash, service indebtedness and incur additional indebtedness; our ability to raise financing in the future; our ability to obtain stockholder approval of an increase to our authorized common stock; our ability to complete a rights offering to raise funds for purposes of capitalizing Frontier Power USA, including satisfying applicable conditions to the rights offering; risks associated with the joint venture, including the risk that the joint venture will not be completed on the anticipated terms if at all; risks associated with the credit agreement with Cerberus, including risks of default, and dilution of outstanding common stock; our customers’ ability to secure project financing; the amount of final tax credits available to our customers or to Eos pursuant to the Inflation Reduction Act, including potential impacts from any repeal or modifications of the legislation; the timing and availability of future funding under the Department of Energy Loan Facility; our ability to continue to develop efficient manufacturing processes to scale and to forecast related costs and efficiencies accurately; fluctuations in our revenue and operating results; competition from existing or new competitors; our ability to convert firm order backlog and pipeline to revenue; risks associated with security breaches in our information technology systems; risks related to legal proceedings or claims; risks associated with evolving energy policies in the United States and other countries and the potential costs of regulatory compliance; risks associated with changes to the U.S. trade environment; our ability to maintain the listing of our shares of common stock on NASDAQ; our ability to grow our business and manage growth profitably, maintain relationships with customers and suppliers and retain our management and key employees; risks related to adverse changes in general economic conditions, including inflationary pressures and increased interest rates; risk from supply chain disruptions and other impacts of geopolitical conflict; changes in applicable laws or regulations; the possibility that Eos may be adversely affected by other economic, business, and/or competitive factors; other factors beyond our control; risks related to adverse changes in general economic conditions; and other risks and uncertainties indicated.

The forward-looking statements contained in this press release are also subject to additional risks, uncertainties, and factors, including those more fully described in the Company’s most recent filings with the Securities and Exchange Commission, including the Company’s most recent Annual Report on Form 10-K and subsequent reports on Forms 10-Q and 8-K. Further information on potential risks that could affect actual results will be included in the subsequent periodic and current reports and other filings that the Company makes with the Securities and Exchange Commission from time to time. Moreover, the Company operates in a very competitive and rapidly changing environment, and new risks and uncertainties may emerge that could have an impact on the forward-looking statements contained in this press release. Forward-looking statements speak only as of the date they are made. Should one or more of these risks or uncertainties materialize or should any of our assumptions prove incorrect, actual results may vary in material respects from those projected in these forward-looking statements. Readers are cautioned not to put undue reliance on forward-looking statements, and, except as required by law, the Company assumes no obligation and does not intend to update or revise these forward-looking statements, whether as a result of new information, future events, or otherwise.

PITTSBURGH, July 15, 2026 (GLOBE NEWSWIRE) — Eos Energy Enterprises, Inc. (NASDAQ: EOSE) (“Eos” or the “Company”), America’s leading innovator in designing, manufacturing, and providing zinc-based long-duration energy storage (LDES) systems sourced and manufactured in the United States, today announced a strategic partnership with the Department of War to enhance the resilience of national defense infrastructure. Eos was awarded a Golden Dome for America contract to integrate mission-ready long-duration energy storage supporting requirements of the nation’s defense shield.

The award was highlighted by President Donald Trump during Senator Dave McCormick’s Defense and National Security Summit in Carlisle, Pennsylvania on July 15, 2026.

“Eos in Pittsburgh just agreed to a multi-million-dollar partnership with the Department of War to build energy storage technology in support of our Golden Dome missile defense. Yeah we’re building a golden dome over our country and its going to be a very effective one,” said President Donald J. Trump.

Under the initiative, Eos’ Z3™ zinc-based long-duration energy storage technology will first be deployed as an initial prototype at a critical installation. The Z3 system is designed to secure power infrastructure and strengthen mission readiness through resilient, long-duration power. The initial deployment will demonstrate the value of American-made long-duration energy storage for national security applications. The program is structured to scale as national defense needs evolve.

“This award validates the strategy we’ve built around American technology innovation, manufacturing and supply chains,” said Joe Mastrangelo, Eos Chief Executive Officer. “Today, we’re proving that America can still manufacture advanced technology at scale and deliver for our nation’s most critical missions.”

Manufactured and assembled in Pittsburgh, Pennsylvania, Eos’ proprietary technology combines a non-flammable aqueous zinc chemistry with approximately 91% domestic content and a predominantly U.S.-based supply chain. The system is Section 842 NDAA- and FEOC-compliant, built around reliable performance, trusted manufacturing and secure sourcing.

“We spent the last year building the relationships, compliance foundation and technical proof points the Department of War requires,” said Michelle Buczkowski, Eos Chief Administration Officer. “This award reflects that work. Eos is ready to deliver for the Department’s mission at scale.”

As the United States strengthens the resilience of its defense and critical infrastructure, reliable power has become a strategic capability. Long-duration energy storage enables facilities to maintain operational readiness, enhances energy security and provides the flexibility needed to support missions where uninterrupted power is essential. The selection of a commercially available American technology for this initiative reflects the growing role advanced energy storage can play in supporting national preparedness.

“The Golden Dome should be built on American technology. Eos’ technology will help secure the power infrastructure our military depends on, while creating good jobs right here in Pennsylvania,” said Senator Dave McCormick.

Eos is rapidly expanding domestic manufacturing capacity through its state-of-the-art Thorn Hill facility in the Pittsburgh region. With Eos’ second battery line now in commercial production, Thorn Hill serves as the cornerstone of the Company’s next phase of growth, adding automated manufacturing capacity for the Z3 platform and creating a scalable, repeatable foundation as Eos works toward 8 gigawatt-hours of annual production capacity in Allegheny County. The facility further strengthens Eos’ domestic supply chain, advances American energy independence and supports the Company’s commitment to create 1,000 high-quality jobs across the region.

About Eos Energy Enterprises
Eos is accelerating the shift to American energy independence with positively ingenious solutions that transform how the world stores power. The Company’s BESS features the innovative Znyth™ technology, a proven chemistry with readily available non-precious earth components, that is the pre-eminent safe, non-flammable, secure, stable, and scalable alternative to conventional technology. The Company’s BESS is ideal for utility-scale, microgrid, commercial, and industrial long-duration energy storage applications (i.e., 4 to 16+ hours) and provides customers with significant operational flexibility to cost effectively address current and future increased grid demand and complexity. For more information about Eos (NASDAQ: EOSE), visit eose.com.

Forward Looking Statements

Statements regarding future deployments, future procurement opportunities, future manufacturing capacity, future job creation, and anticipated benefits of the initiative are inherently subject to significant uncertainties and should not be viewed as guarantees of future performance, contract awards, revenue, production levels, or operational outcomes. Except for the historical information contained herein, the matters set forth in this press release are forward-looking statements within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements in this release include, without limitation, statements regarding the anticipated deployment, performance, timing, benefits, and scalability of the Company’s energy storage technology in connection with the referenced defense infrastructure initiative; the expected use, testing, acceptance, and future expansion of any prototype deployment; the Company’s ability to support mission readiness, energy resilience, and national preparedness objectives; the potential for future contracts, awards, deployments, or procurements; the Company’s domestic manufacturing capabilities, domestic content levels, supply chain positioning, and compliance with applicable governmental requirements; the Company’s ability to expand production capacity, including its goal of achieving 8 gigawatt-hours of annual manufacturing capacity; and the Company’s plans, expectations, and objectives regarding employment growth, facility expansion, and future business opportunities. Forward-looking statements include, but are not limited to, statements that refer to outlook, projections, forecasts or other characterizations of future events or circumstances, including any underlying assumptions. The words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intends,” “may,” “might,” “plan,” “possible,” “potential,” “predict,” “project,” “should,” “would” and similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking. Forward-looking statements are based on our management’s beliefs, as well as assumptions made by, and the information currently available to, them. Because such statements are based on expectations as to future financial and operating results and are not statements of fact, actual results may differ materially from those projected.

Factors which may cause actual results to differ materially from current expectations include, but are not limited to: changes adversely affecting the business in which we are engaged; our ability to forecast trends accurately; our ability to generate cash, service indebtedness and incur additional indebtedness; our ability to raise financing in the future; risks associated with the credit agreement with Cerberus, including risks of default, dilution of outstanding Common Stock; our customers’ ability to secure project financing; the amount of final tax credits available to our customers or to Eos pursuant to the Inflation Reduction Act; the timing and availability of future funding under the Department of Energy Loan Facility; our ability to continue to develop efficient manufacturing processes to scale and to forecast related costs and efficiencies accurately; fluctuations in our revenue and operating results; competition from existing or new competitors; our ability to convert firm order backlog and pipeline to revenue; risks associated with security breaches in our information technology systems; risks related to legal proceedings or claims; risks associated with evolving energy policies in the United States and other countries and the potential costs of regulatory compliance; risks associated with changes to the U.S. trade environment; our ability to maintain the listing of our shares of common stock on NASDAQ; our ability to grow our business and manage growth profitably, maintain relationships with customers and suppliers and retain our management and key employees; risks related to the adverse changes in general economic conditions, including inflationary pressures and increased interest rates; risk from supply chain disruptions and other impacts of geopolitical conflict; changes in applicable laws or regulations; the possibility that Eos may be adversely affected by other economic, business, and/or competitive factors; other factors beyond our control; risks associated with government contracting and procurement activities, including the timing, execution, modification, suspension, termination, renewal, expansion, or non-renewal of government contracts; changes in governmental priorities, appropriations, budgets, policies, or requirements; delays in prototype deployment, testing, validation, acceptance, integration, or commercialization; the Company’s ability to satisfy technical, operational, cybersecurity, domestic sourcing, manufacturing, security, or regulatory requirements; restrictions on public disclosure related to defense or national security programs; the availability of future funding or procurement opportunities; the achievement of anticipated operational, performance, manufacturing, employment, or production-capacity objectives; and the possibility that anticipated benefits of the initiative may not be realized or may take longer to realize than currently expected; and other risks and uncertainties.

The forward-looking statements contained in this press release are also subject to additional risks, uncertainties, and factors, including those more fully described in the Company’s most recent filings with the Securities and Exchange Commission, including the Company’s most recent Annual Report on Form 10-K and subsequent reports on Forms 10-Q and 8-K. Further information on potential risks that could affect actual results will be included in the subsequent periodic and current reports and other filings that the Company makes with the Securities and Exchange Commission from time to time. Moreover, the Company operates in a very competitive and rapidly changing environment, and new risks and uncertainties may emerge that could have an impact on the forward-looking statements contained in this press release.