GWH

4 - ESS Tech, Inc. (0001819438) (Issuer)

4 - ESS Tech, Inc. (0001819438) (Issuer)

4 - ESS Tech, Inc. (0001819438) (Issuer)

4 - ESS Tech, Inc. (0001819438) (Issuer)

4 - ESS Tech, Inc. (0001819438) (Issuer)

8-K - ESS Tech, Inc. (0001819438) (Filer)

4 - ESS Tech, Inc. (0001819438) (Issuer)

4 - ESS Tech, Inc. (0001819438) (Issuer)

ESS Tech, Inc. (NYSE:GWH) ("ESS" or the "company"), a leading manufacturer of iron flow, long-duration energy storage (LDES) systems for commercial and utility-scale applications, today announced that management will participate in Clean Energy Group's Beyond Lithium webinar series. ESS CEO Drew Buckley will participate in the webinar from 3:00 PM ET to 4:00 PM ET. Buckley will discuss an overview of the company and its iron flow technology, including target applications and related services, market readiness, the path to commercialization, and other key topics. Clean Energy Group Beyond Lithium webinar series Date: Wednesday, June 3, 2026 Format: Webinar Time: 3:00 – 4:00 PM ET Registr

NEW YORK, NY / ACCESS Newswire / May 20, 2026 / Sidoti Events, LLC, an affiliate of Sidoti & Company, LLC, has released the presentation schedule and weblinks for its two-day May Micro-Cap Virtual Investor Conference taking place Wednesday and Thursday, May 20-21, 2026. The presentation schedule is subject to change. Please visit www.sidoti.com/events for the most updated version and webinar links. Presentation Schedule*All Times EDTWednesday, May 20, 2026 (Day 1)8:30-9:00Huize Holding Limited (HUIZ)*****9:15-9:45U Power Limited (UCAR)SuperCom (SPCB)10:00-10:30InTest Corporation (INTT)Dyadic Applied BioSolutions (DYAI)10:45-11:15International Battery Metals (IBATF)A2Z Cust2mate (AZ)11:30

ESS Tech, Inc. (NYSE:GWH) ("ESS" or the "Company"), a leading manufacturer of long-duration iron flow energy storage systems ("LDES") for commercial and utility-scale applications, today announced that management will attend the upcoming Sidoti Micro-Cap Virtual Conference. ESS' Chief Executive Officer, Drew Buckley, will participate in one-on-one investor meetings and will also host a presentation from 2:30 PM ET to 3:00 PM ET in Track 1. Mr. Buckley will be discussing recently reported quarterly results, recent validation of the Company's technology, and advancing commercial opportunities. Sidoti Virtual Micro-Cap Virtual Conference Date: Wednesday, May 20, 2026 Format: Presentation &

SCHEDULE 13G - ESS Tech, Inc. (0001819438) (Subject)

10-Q - ESS Tech, Inc. (0001819438) (Filer)

8-K - ESS Tech, Inc. (0001819438) (Filer)

Advancing Commercial Opportunities: Project New Horizon Collaboration with Salt River Project and Google, Large Capacity Energy Storage System for the U.S. Department of the Air and Space Force, Strategic Partnership with Alsym, Successful Commissioning of LDES at TID Burbank Water and Power/APPA Efficacy Report Provides Validates ESS Iron Flow Technology; VoltStorage GmbH Assets Acquisition Strengthens Technology Platform and Intellectual Property Base Strengthened Liquidity Position Supports Execution Across Energy Base Development, Commercial Execution and Go-to-Market Priorities Management to Host Webcast and Conference Call Today at 5:00 p.m. ET ESS Tech, Inc. ("ESS," "ESS, Inc

Report from Burbank Water and Power Documents Successful Installation and Operation of ESS Battery system in Real-World Utility Setting Demonstration Supports Value of Iron Flow Technology for Long-Duration Energy Storage Applications ESS Tech, Inc. (NYSE:GWH) ("ESS" or the "Company"), a leading manufacturer of long-duration iron flow energy storage systems ("LDES") for commercial and utility-scale applications, highlighted the findings of a final report issued in connection with Burbank Water and Power for the American Public Power Association (APPA) to evaluate the application of ESS' Iron Flow Battery technology in a real-world utility environment. The report, prepared under the AP

Project Demonstrates ESS Technology in an Innovative Infrastructure Application, Combining Energy Storage, Renewable Generation and Water Conservation Commissioning Marks Operational Milestone for ESS and Supports TID's Innovative Water and Energy Infrastructure Project ESS Tech, Inc. (NYSE:GWH) ("ESS" or the "Company"), a leading manufacturer of long-duration iron flow energy storage systems ("LDES") for commercial and utility-scale applications, today announced the successful commissioning of two ESS iron flow battery systems at Turlock Irrigation District ("TID") in California's Central Valley. The project pairs ESS iron flow battery technology with solar panels installed above act

Next Generation Sodium-ion Battery Solution Enables ESS Transition to a Full-Service BESS Platform Provider for Expanded Applications Partnership Enables ESS to Enter the Short and Medium Duration Energy Storage Segment ESS Tech, Inc. (NYSE:GWH) ("ESS" or the "Company"), a leading manufacturer of sustainable, long‑duration energy storage systems ("LDES"), today announced the signing of a letter of intent for a strategic partnership with Alsym Energy, a pioneer in non-flammable, high-performance sodium-ion batteries, to add 8.5 GWh of sodium‑ion cells and modules to its portfolio. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/

ESS Tech, Inc. (ESS) (NYSE: GWH), a leading manufacturer of iron flow long-duration energy storage (LDES) systems for commercial- and utility-scale applications, today announced that it will hold a conference call on Thursday, May 7, 2026 at 5:00 p.m. EDT to discuss financial results for its first quarter 2026 ended March 31, 2026, and will be providing updates on commercial progress, customer deployments, and anticipated technology milestones. A press release detailing these results will be issued prior to the call. ESS Tech CEO Drew Buckley and CFO Kate Suhadolnik will host the conference call, followed by a question-and-answer period. The conference call will be accompanied by a presen

DEFA14A - ESS Tech, Inc. (0001819438) (Filer)

DEF 14A - ESS Tech, Inc. (0001819438) (Filer)

8-K - ESS Tech, Inc. (0001819438) (Filer)

American-Made, Long-Duration Iron Flow Technology Poised to Capitalize on Surging AI Data Center Power Demand and Renewable Baseload Reliability Commercial Momentum Backed by U.S. Air Force Award, Salt River Project and Google's Project New Horizon, VoltStorage IP Acquisition, Strengthened Capital Position, and Manufacturing Readiness Recognized by TIME as One of America's Top GreenTech Companies in 2025 and 2026 ESS Tech, Inc. (NYSE:GWH) ("ESS" or the "Company"), a leading manufacturer of long-duration iron flow energy storage systems ("LDES") for commercial and utility-scale applications, has engaged international investor relations specialists MZ Group ("MZ") to lead a comprehensiv

ESS Tech, Inc. (NYSE:GWH) ("ESS" or the "Company"), 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 mi

S-8 - ESS Tech, Inc. (0001819438) (Filer)