Press Release

ESS to Attend the 38th Annual ROTH Conference

WILSONVILLE, Ore.–(BUSINESS WIRE)–ESS Tech, Inc. (NYSE: GWH) (โ€œESSโ€ or the โ€œCompanyโ€), a leading innovator in long-duration energy storage solutions, today announced that the Company will participate in the 38th Annual ROTH Conference taking place March 22-24, 2026, in Dana Point, California.


Drew Buckley, Chief Executive Officer, and Kate Suhadolnik, Chief Financial Officer, will attend the 38th Annual ROTH Conference where they are scheduled to host one-on-one meetings with institutional investors and provide updates on the recently announced Salt River Project and Google long duration energy storage collaboration, VoltStorage intellectual property and assets acquisition, and additional growth initiatives and upcoming milestones.

38th Annual ROTH Conference

Date: March 22-24, 2026

Location: The Ritz-Carlton, Dana Point, CA

Format: In-person 1×1 Meetings

ESS Attendees: Drew Buckley, Chief Executive Officer, Kate Suhadolnik, Chief Financial Officer

Conference Website: Here

For more information on the 38th Annual ROTH Conference, or to schedule a meeting with ESS management, please contact your ROTH representative or you may also email your request to [email protected] or call Chris Tyson at (949) 491-8235.

About ESS Tech, Inc.

ESS (NYSE: GWH) is the leading manufacturer of long-duration iron flow energy storage solutions. ESS was established in 2011 with a mission to accelerate decarbonization safely and sustainably through longer lasting energy storage. Using easy-to-source iron, salt, and water, ESS iron flow technology enables energy security, reliability and resilience. We build flexible storage solutions that allow our customers to meet increasing energy demand without power disruptions and maximize the value potential of excess energy. For more information visit www.essinc.com.

Forward-Looking Statements

This communication contains forward-looking statements (including within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended, and Section 27A of the Securities Act of 1933, as amended) concerning the Company and other matters that involve substantial risks and uncertainties. These statements may discuss the management teamโ€™s goals, beliefs, hopes, intentions and expectations as to future plans, trends, events, results of operations and financial condition, or otherwise, based on current beliefs of the management of the Company, as well as assumptions made by, and information currently available to, the Companyโ€™s management. These forward-looking statements can be identified by the use of forward-looking terminology, including the words โ€œanticipate,โ€ โ€œbelieve,โ€ โ€œcontinue,โ€ โ€œcould,โ€ โ€œestimate,โ€ โ€œexpect,โ€ โ€œintends,โ€ โ€œmay,โ€ โ€œmight,โ€ โ€œplan,โ€ โ€œpossible,โ€ โ€œpotential,โ€ โ€œpredict,โ€ โ€œproject,โ€ โ€œshould,โ€ โ€œwill,โ€ โ€œwould,โ€ or, in each case, their negative or other variations or comparable terminology may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking. These forward-looking statements, which are subject to risks, uncertainties and assumptions about us, may include projections of our future financial performance, our anticipated growth strategies and anticipated trends in our business. Examples of forward-looking statements include, among others, statements pertaining to statements made by the Companyโ€™s Chief Executive Officer and Chief Financial Officer, statements pertaining to the Companyโ€™s 2026 outlook and beyond, cash position, the timing the Companyโ€™s ability to create value in the long-term, market opportunities for ESSโ€™ products, increased pace of commercial activity, the timing for manufacturing and delivery for Project New Horizon, the timing of delivery commencing for the Companyโ€™s projects, as well as statements regarding the Companyโ€™s employees, commercial expectations regarding sales order and pipeline, the expected integration of the VoltStorage intellectual property and technology, ESS product development and manufacturing, and relationships with customers. These forward-looking statements are based on ESSโ€™ current expectations and beliefs concerning future developments and their potential effects on ESS. Many factors could cause actual future events to differ materially from the forward-looking statements in this communication. There can be no assurance that the future developments affecting ESS will be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond ESS control) or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements, which include, but are not limited to, barriers we face in our attempts to produce our energy storage products; our products being in the early stage of commercialization and aspects of our technology not having been fully field tested; our inability to develop our business and effectively commercialize our energy storage products; our dependence on third-party suppliers; delays in our manufacturing operations, our ability to control our costs and achieve our cost reduction strategy; our dependence on complex machinery; our ability to increase our production capacity; required maintenance being performed incorrectly or maintenance requirements exceeding our current expectations; our history of losses; failure to deliver the benefits offered by our technology; inability to achieve market acceptance of our products; our warranty obligations; our relationships with related parties; regulatory challenges; our ability to protect our intellectual property; and our ability to raise capital in the near future; general economic and market conditions as well as geopolitical developments and other risks and uncertainties described more fully in the section titled โ€œRisk Factorsโ€ in the Companyโ€™s Quarterly Report on Form 10-K filed on March 5, 2026, and the Companyโ€™s other filings with the U.S. Securities and Exchange Commission. Except as required by law, ESS is not undertaking any obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise.

Contacts

Company
[email protected]

Investor Relations
Chris Tyson

Executive Vice President

MZ Group – MZ North America

Phone: (949) 491-8235

[email protected]
www.mzgroup.us

Author

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