\nESS Tech, Inc. (\u201cESS,\u201d \u201cESS, Inc.\u201d or the \u201cCompany\u201d) (NYSE: GWH), a leading manufacturer of long-duration energy storage systems (\u201cLDES\u201d) for commercial and utility-scale applications, today announced financial results for its first quarter ended March 31, 2026.<\/p>\n
\n\u201cThe first quarter and second quarter to date reflect continued initiatives to reset ESS around execution, capital discipline, and scalable commercial opportunities,\u201d said Drew Buckley, Chief Executive Officer of ESS. \u201cWe continued to strengthen our leadership team, improve our financial position, and sharpen our operating focus as we advance into the Company\u2019s next phase. We advanced Project New Horizon with Salt River Project and Google, were awarded a $9.9 million contract with Concurrent Technologies Corporation (\u201cCTC\u201d) and the United States Air Force Research Laboratory (\u201cAFRL\u201d) for a large capacity energy storage system, recently announced our partnership with Alsym Energy, and added commercial leadership with the appointment of Randy Selesky as Chief Commercial Officer.<\/p>\n
\n\u201cOn the technology side, the final report issued in connection with Burbank Water and Power for the American Public Power Association (\u201cAPPA\u201d) to evaluate the application of ESS\u2019s Iron Flow Battery technology in a real-world utility environment. The report concluded that ESS\u2019s Iron Flow Battery technology works as intended and there is a use case for this battery technology in a utility\u2019s overall energy storage strategy. We believe that our acquisition of VoltStorage GmbH\u2019s assets has strengthened and expanded our intellectual property base and technology platform.<\/p>\n
\n\u201cLooking ahead, we expect commercial activity to increase as projects progress from contracting to delivery and commissioning, supported by an active pipeline across targeted end markets. Recent progress reinforces what we believe is growing demand for resilient, domestically produced long-duration energy storage, and we believe our commercial and technology momentum better positions ESS to convert growing demand for safe, long-duration, American-made energy storage into meaningful commercial progress.\u201d<\/p>\n
First Quarter 2026 and Subsequent Highlights<\/b><\/p>\n First Quarter 2026 Financial Highlights<\/b><\/p>\n \nKate Suhadolnik, Chief Financial Officer of ESS, commented, \u201cWe remain focused on expense control, liquidity, and maintaining financial flexibility as we support the business through its transition and commercialization efforts. Total operating expenses declined 33% year-over-year and we also benefited from the capital raised through our registered direct offering during the quarter. We ended the quarter with $15.5 million in unrestricted cash and cash equivalents and $6.0 million in short-term investments, representing total liquidity of $21.5 million. We remain focused on the strategic allocation of capital as we advance our operational and commercialization priorities.\u201d<\/p>\n Conference Call Details<\/b><\/p>\n \nESS Chief Executive Officer Drew Buckley and Chief Financial Officer Kate Suhadolnik will host the conference call, followed by a question-and-answer period. The call will be accompanied by a presentation, which will be available following the call via the investor relations section of the Company\u2019s website.<\/p>\n \nTo access the call, please use the following information:<\/p>\n Date<\/b>:<\/p>\n<\/td>\n \nThursday, May 7, 2026<\/p>\n<\/td>\n<\/tr>\n Time:<\/b><\/p>\n<\/td>\n \n5:00 p.m. Eastern Time (2:00 p.m. Pacific Time)<\/p>\n<\/td>\n<\/tr>\n Dial-in:<\/b><\/p>\n<\/td>\n \n1-833-461-5787<\/p>\n<\/td>\n<\/tr>\n International<\/b>:<\/p>\n<\/td>\n \nPlease Refer to Earnings Call Announcement Press Release for More Info<\/p>\n<\/td>\n<\/tr>\n Meeting ID:<\/b><\/p>\n<\/td>\n \n512803249<\/p>\n<\/td>\n<\/tr>\n Webcast<\/b>:<\/p>\n<\/td>\n ESS Tech, Inc.<\/b><\/p>\n Condensed Consolidated Statements of Operations and Comprehensive Loss<\/b><\/p>\n (unaudited)<\/b><\/p>\n (in thousands, except share and per share data)<\/b><\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n Three Months Ended March 31,<\/b><\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n 2026<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n 2025<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Revenue:<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nRevenue<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n122<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n571<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nRevenue – related parties<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n6<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n28<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nTotal revenue<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n128<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n599<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Cost of revenue<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n7,166<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n8,746<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Gross loss<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(7,038<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(8,147<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n Operating expenses<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nResearch and development<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n2,625<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n2,478<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nSales and marketing<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n254<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,950<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nGeneral and administrative<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n3,863<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n5,571<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nTotal operating expenses<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n6,742<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n9,999<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nLoss from operations<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(13,780<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(18,146<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n Other (expense) income, net<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nInterest (expense) income, net<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(2,496<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n216<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nGain (loss) on revaluation of common stock warrant liabilities<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n344<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(115<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nOther income, net<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n10<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n19<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nTotal other (expense) income, net<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(2,142<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n120<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Net loss and comprehensive loss to common stockholders<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n(15,922<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n(18,026<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Net loss per share – basic and diluted<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n(0.54<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n(1.50<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Weighted-average shares used in per share calculation – basic and diluted<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n29,294,336<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n12,033,442<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n ESS Tech, Inc.<\/b><\/p>\n Condensed Consolidated Balance Sheets<\/b><\/p>\n (unaudited)<\/b><\/p>\n (in thousands, except share data)<\/b><\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n March 31, 2026<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n December 31, 2025<\/b><\/p>\n<\/td>\n<\/tr>\n Assets<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Current assets:<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nCash and cash equivalents<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n15,489<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n14,477<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nRestricted cash, current<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n806<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n806<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAccounts receivable, net<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n37<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n13<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nShort-term investments<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n5,966<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n7,557<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nInventory<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n123<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n140<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nPrepaid expenses and other current assets<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n2,353<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n3,254<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Total current assets<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n24,774<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n26,247<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nProperty and equipment, net<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n16,293<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n17,224<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nIntangible assets, net<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n2,615<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n2,682<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nOperating lease right-of-use assets<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n3,341<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n3,767<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nRestricted cash, non-current<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n918<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n618<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nOther non-current assets<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n631<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n634<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Total assets<\/b><\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n48,572<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n51,172<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Liabilities and stockholders’ equity<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Current liabilities:<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAccounts payable<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n1,333<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n3,023<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAccrued and other current liabilities<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n9,453<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n11,097<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAccrued product warranties<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n985<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n985<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nOperating lease liabilities, current<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,851<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,784<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nDeferred revenue, current<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n346<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n359<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nFinancing obligations, current<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n9,045<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n8,044<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Total current liabilities<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n23,013<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n25,292<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nOperating lease liabilities, non-current<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,566<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n2,060<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nFinancing obligations, non-current<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n8,992<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n9,291<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nDeferred revenue, non-current – related parties<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n5,297<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n5,297<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nCommon stock warrant liabilities<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n229<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n573<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nOther non-current liabilities<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n29<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n41<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Total liabilities<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n39,126<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n42,554<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Stockholders’ equity:<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nPreferred stock ($0.0001 par value; 200,000,000 shares authorized, none issued and outstanding as of March 31, 2026 and December 31, 2025)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u2014<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u2014<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nCommon stock ($0.0001 par value; 1,000,000,000 shares authorized, 27,922,991 and 22,377,003 shares issued and outstanding as of March 31, 2026 and December 31, 2025, respectively)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n3<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n2<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAdditional paid-in capital<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n871,184<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n854,435<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAccumulated deficit<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(861,741<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(845,819<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n Total stockholders’ equity<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n9,446<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n8,618<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Total liabilities and stockholders’ equity<\/b><\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n48,572<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n51,172<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n ESS Tech, Inc.<\/b><\/p>\n Condensed Consolidated Statements of Cash Flows<\/b><\/p>\n (unaudited)<\/b><\/p>\n (in thousands)<\/b><\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n Three Months Ended March 31,<\/b><\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n 2026<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n 2025<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Cash flows from operating activities:<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Net loss<\/b><\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n(15,922<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n(18,026<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nAdjustments to reconcile net loss to net cash used in operating activities:<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nDepreciation and amortization<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n2,379<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,540<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nNon-cash interest expense (income)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n2,477<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(137<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nNon-cash lease expense<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n426<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n361<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nStock-based compensation expense<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,064<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,234<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nChange in fair value of common stock warrant liabilities<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(344<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n115<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nOther non-cash expenses, net<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n2<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n58<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nChanges in operating assets and liabilities:<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAccounts receivable, net<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(24<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(19<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nInventory<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n17<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(1,243<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nPrepaid expenses and other assets<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n904<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n2,130<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAccounts payable<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(1,732<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n497<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAccrued and other liabilities<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(2,266<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(3,027<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nAccrued product warranties<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u2014<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(1,260<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nDeferred revenue<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(13<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(62<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nOperating lease liabilities<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(427<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(399<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n Net cash used in operating activities<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(13,459<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(18,238<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Cash flows from investing activities:<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nPurchases of property and equipment<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(930<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(762<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nMaturities and purchases of short-term investments, net<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,655<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n14,014<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Net cash provided by investing activities<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n725<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n13,252<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Cash flows from financing activities:<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nProceeds from issuance of common stock via ATM, net of issuance costs<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n2,133<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u2014<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nProceeds from issuance of common stock and common stock warrants via RDO, net of issuance costs<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n13,553<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u2014<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nPayments on financing obligations<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(10,840<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u2014<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nProceeds from financing arrangements<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n9,200<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u2014<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nProceeds from stock options exercised<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u2014<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n4<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nRepurchase of shares from employees for income tax withholding purposes<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u2014<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(17<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n Net cash provided by (used in) financing activities<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n14,046<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(13<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Net change in cash, cash equivalents and restricted cash<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,312<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(4,999<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n Cash, cash equivalents and restricted cash, beginning of period<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n15,901<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n15,195<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Cash, cash equivalents and restricted cash, end of period<\/b><\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n17,213<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n10,196<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n ESS Tech, Inc.<\/b><\/p>\n Condensed Consolidated Statements of Cash Flows (continued)<\/b><\/p>\n (unaudited)<\/b><\/p>\n (in thousands)<\/b><\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n Three Months Ended March 31,<\/b><\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n 2026<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n 2025<\/b><\/p>\n<\/td>\n<\/tr>\n Supplemental disclosures of cash flow information:<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nCash paid during the period for:<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nOperating leases included in cash used in operating activities<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n531<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n438<\/p>\n<\/td>\n<\/tr>\n \nInterest<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n341<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u2014<\/p>\n<\/td>\n<\/tr>\n \nNon-cash investing and financing transactions:<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nPurchase of property and equipment included in accounts payable and accrued and other current liabilities<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n19<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n4,277<\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nCash and cash equivalents<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n15,489<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n8,422<\/p>\n<\/td>\n<\/tr>\n \nRestricted cash, current<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n806<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n906<\/p>\n<\/td>\n<\/tr>\n \nRestricted cash, non-current<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n918<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n868<\/p>\n<\/td>\n<\/tr>\n \nTotal cash, cash equivalents and restricted cash shown in the condensed consolidated statements of cash flows<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n17,213<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n10,196<\/p>\n<\/td>\n<\/tr>\n ESS Tech, Inc.<\/b><\/p>\n Reconciliation of GAAP Net Loss to Adjusted EBITDA<\/b><\/p>\n (unaudited)<\/b><\/p>\n (in thousands)<\/b><\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n Three Months Ended March 31,<\/b><\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n 2026<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n 2025<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nNet loss<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n(15,922<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n(18,026<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nInterest expense (income), net<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n2,496<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(216<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nStock-based compensation<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,064<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,234<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nDepreciation and amortization<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n2,379<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,540<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \n(Gain) loss on revaluation of common stock warrant liabilities<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(344<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n115<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nFinancing costs<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n75<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n418<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nOther income, net<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(10<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(19<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nAdjusted EBITDA<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n(10,262<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n(14,954<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n<\/table>\n \n\u00a0<\/p>\n View source version on businesswire.com: <\/span>https:\/\/www.businesswire.com\/news\/home\/20260507163788\/en\/<\/a><\/span><\/p>\n Company Investor Relations KEYWORDS:<\/b> Oregon United States North America<\/p>\n INDUSTRY KEYWORDS:<\/b> Environment Technology Engineering Utilities Sustainability Alternative Energy Manufacturing Green Technology Energy Batteries<\/p>\n\n
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\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \u00a0<\/td>\n<\/tr>\n \n \n \n \n \n \u00a0<\/td>\n<\/tr>\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \u00a0<\/td>\n<\/tr>\n<\/table>\n \n
\n \n \n \n \n \n \u00a0<\/td>\n<\/tr>\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \u00a0<\/td>\n<\/tr>\n<\/table>\n \n
\n \n \n \n \u00a0<\/td>\n<\/tr>\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \u00a0<\/td>\n<\/tr>\n<\/table>\n \n
\n \n \n \n \u00a0<\/td>\n<\/tr>\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \u00a0<\/td>\n<\/tr>\n<\/table>\n \n
\n \n \n \n \n \u00a0<\/td>\n<\/tr>\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n <\/p>\n
\n<\/b>
investors@essinc.com<\/a><\/p>\n
\n<\/b>
Chris Tyson
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Executive Vice President
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MZ Group – MZ North America
\n
Phone: (949) 491-8235
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GWH@mzgroup.us
\n<\/a>
www.mzgroup.us<\/a><\/p>\n
![\"Logo\"](\"https:\/\/mms.businesswire.com\/media\/20260507163788\/en\/2728899\/3\/ESS_Logo_Screen_2017_FullColor_RGB_M.jpg\"){kind=logo}
<\/td>\n<\/tr>\n