10-Q: ESS Tech Faces Steep Revenue Drop, Mounting Losses

ESS Tech, Inc. reported a dramatic 97% decrease in revenue for the three months ended June 30, 2026, alongside significant operating losses and a stark warning about its ability to continue as a going concern.

Summary

• ESS Tech, Inc. experienced a severe downturn in its financial performance for the three and six months ended June 30, 2026, with revenue plummeting by 97% and 93% respectively compared to the same periods in 2025.
• The company reported a gross loss of $7.4 million for the three-month period and $14.5 million for the six-month period, with operating expenses increasing in some areas despite the revenue decline.
• Net loss widened significantly, reaching $15.6 million for the three months and $31.5 million for the six months ended June 30, 2026.
• The company has a substantial accumulated deficit of $877.3 million as of June 30, 2026.
• Management has expressed substantial doubt about the company's ability to continue as a going concern, citing insufficient cash to fund operations for the next year and the need for additional financing.
• The company's common stock price has fallen below $1.00, triggering a delisting warning from the NYSE.
• The company is actively pursuing cost reduction and cash conservation measures to extend its operational runway.

Sentiment

Score: 2

Explanation: StockSavvy.ai views this filing as highly negative due to significant revenue decline, substantial operating losses, and a critical going concern warning, indicating severe financial distress.

Positives

• The company is actively pursuing cost reduction and cash conservation measures.
• The company has a standby letter of credit with Bank of America for $0.6 million as security for performance and payment obligations under a customer agreement.
• The company has a standby letter of credit with Bank of America for $0.2 million in support of customs and duties on imported materials.
• The company has a standby letter of credit with Bank of America for $0.3 million as security for its subsidiary's performance under a 2025 customer agreement.
• The company entered into a Credit Agreement with Export-Import Bank of the United States for a secured loan facility of up to $22.7 million, though no borrowings were outstanding as of June 30, 2026.

Negatives

• Revenue for the three months ended June 30, 2026, was $73,000, a decrease of 97% from $2,358,000 in the prior year period.
• Revenue for the six months ended June 30, 2026, was $201,000, a decrease of 93% from $2,957,000 in the prior year period.
• Gross loss for the three months ended June 30, 2026, was $7,421,000, an increase of 45% from $5,101,000 in the prior year period.
• Gross loss for the six months ended June 30, 2026, was $14,459,000, an increase of 9% from $13,248,000 in the prior year period.
• Operating expenses increased by 19% for the three months ended June 30, 2026, to $7,713,000 from $6,456,000 in the prior year period.
• Net loss for the three months ended June 30, 2026, was $15,553,000, an increase of 41% from $11,056,000 in the prior year period.
• Net loss for the six months ended June 30, 2026, was $31,475,000, an increase of 8% from $29,082,000 in the prior year period.
• The company has substantial doubt about its ability to continue as a going concern.
• The company's common stock price has fallen below $1.00, triggering a NYSE delisting warning.
• The company has an accumulated deficit of $877.3 million as of June 30, 2026.
• Cash and cash equivalents were $10.8 million as of June 30, 2026, down from $14.5 million at the end of 2025.

Risks

• Substantial doubt exists regarding the company's ability to continue as a going concern due to ongoing operating losses and insufficient cash reserves.
• The company faces significant barriers in producing energy storage products at commercial scale, with certain products still under development.
• Dependence on third-party suppliers for key raw materials and components poses risks of quality issues or delivery delays.
• The company may be unable to adequately control operational costs and component costs, potentially impairing its ability to achieve profitability.
• The market acceptance of sodium-ion BESS is uncertain, and customers may prefer established lithium-ion technologies.
• The company's strategy to reallocate resources to sodium-ion BESS may adversely affect the development of its iron flow battery technology.
• The company has experienced and may continue to experience delays, disruptions, or quality control problems in its manufacturing operations.
• The company's common stock price has fallen below $1.00, leading to a NYSE delisting warning, which could limit its ability to raise capital and affect liquidity.

Future Outlook

The company anticipates continued losses in the near term and requires additional debt or equity financing to meet operating cash flow requirements. Management is pursuing cost reduction and cash conservation measures. The company's ability to continue as a going concern is dependent on obtaining necessary financing.

Management Comments

• Management has expressed substantial doubt about the company's ability to continue as a going concern for 12 months from the issuance of these financial statements.
• The company will need additional debt or equity financing in the near term to meet operating cash flow requirements.
• Management is evaluating various strategies to obtain additional funding, which may include additional offerings of equity, issuance of debt, or other capital sources.
• The company has expanded certain cost reduction and cash conservation measures to better align organizational costs with business continuity.

Industry Context

StockSavvy.ai notes that the energy storage sector is highly competitive, with companies like ESS Tech facing challenges in scaling production, managing costs, and competing with established technologies like lithium-ion. The significant revenue decline and ongoing losses reported by ESS Tech are concerning, especially in a market that is crucial for the energy transition.

Comparison to Industry Standards

• ESS Tech's revenue decline of 97% for the quarter is significantly worse than industry averages for growth-oriented energy storage companies, which are typically focused on scaling operations and increasing market share.
• The company's gross loss margin is negative, indicating that its cost of revenue exceeds its revenue, a situation that is unsustainable and contrasts with companies that have achieved positive gross margins through efficient production and pricing.
• The substantial operating losses and the going concern warning are critical red flags, as many competitors in the energy storage sector are either profitable or on a clear path to profitability, supported by strong demand and effective cost management.

Legal Proceedings

• The company received a demand letter from a supplier alleging damages based on certain purchase terms and commitments, with a contingent loss of $1.75 million recorded.

Related Party Transactions

• Revenue of $69,000 and $75,000 was recognized for reimbursable expenses and extended warranty services provided to related parties for the three and six months ended June 30, 2026, respectively.
• A non-refundable deposit of $5.3 million for future equipment purchases by Honeywell is recorded within non-current deferred revenue.
• The value of the initial Performance Warrant issued to Honeywell was $0.6 million and is included within other non-current assets.

Stakeholder Impact

• Shareholders face significant risk due to the company's severe financial distress, substantial losses, and going concern warning, which could lead to a complete loss of investment.
• Employees may face uncertainty regarding job security due to cost-cutting measures and the company's precarious financial situation.
• Suppliers may face risks related to delayed payments or reduced orders given the company's liquidity constraints and revenue decline.
• Creditors and lenders may face increased risk of default on financing obligations due to the company's inability to generate sufficient revenue and secure additional funding.

Next Steps

• Continue to pursue cost reduction and cash conservation measures.
• Seek additional debt or equity financing to meet operating cash flow requirements.
• Evaluate workforce staffing requirements and essential business functions.
• Refine focus on R&D and engineering projects towards highest priority.
• Continue to monitor compliance with NYSE listing requirements.

Key Dates

Recommendation

The severe revenue decline, widening losses, critical going concern warning, and NYSE delisting risk indicate a highly unfavorable financial outlook. The company's ability to continue operations is in serious doubt, making it a high-risk investment.

Keywords

energy storage, sodium-ion battery, iron flow battery, manufacturing, revenue decline, operating loss, going concern, delisting warning