| 2026-08-11 | Press release | ESS Reschedules Second Quarter 2026 Financial Results Conference Call to Tuesday, August 11, 2026 at 5:00 p.m. Eastern T |
| 2026-08-11 | Press release | Press Release |
| 2026-08-06 | Press release | ESS Tech Signs Letter of Intent for Proposed Business Combination |
| 2026-07-30 | Press release | ESS Named One of TIME and Statista's World's Top GreenTech Companies in 2026 for the Second Consecutive Year |
| 2026-07-29 | Press release | ESS to Host Second Quarter 2026 Financial Results Conference Call on Thursday, August 13, 2026 at 5:00 p.m. Eastern Time |
| 2026-07-22 | Press release | ESS and Juniper Energy Sign Agreement for 500 MWh+ of Sodium-Ion Energy Storage Deployments |
| 2026-07-08 | Press release | ESS Introduces Bridge™, a Modular Sodium-Ion Battery Energy Storage System for Grid-Scale, Data Center, and Commercial A |
| 2026-06-29 | Press release | ESS Added to Russell Microcap® Index |
| 2026-06-23 | Press release | ESS to Accelerate Sodium-Ion Battery Energy Storage System Development Following Surging Customer Interest |
| 2026-05-29 | Regulatory report | Conflict Minerals Report(opens in new window) |
| 2026-05-20 | Press release | ESS to Present in Clean Energy Group’s Beyond Lithium Webinar Series on June 3, 2026 |
| 2026-05-20 | Press release | ESS to Attend Sidoti Micro-Cap Virtual Conference on May 20, 2026 |
| 2026-05-06 | Press release | ESS Highlights Third-Party Utility Validating Iron Flow Battery Technology |
| 2026-05-05 | Press release | ESS Announces Successful Commissioning of Long-Duration Iron Flow Battery Systems at Turlock Irrigation District Solar-O |
| 2026-04-30 | Press release | ESS Partners with Alsym Energy to Deliver 8.5 GWh of Non-Lithium Battery Energy Storage Solutions |
| 2026-04-09 | Press release | ESS Engages MZ Group to Lead Strategic Investor Relations and Shareholder Communications Program |
| 2026-03-10 | Press release | ESS to Attend the 38th Annual ROTH Conference |
| 2026-03-03 | Press release | ESS Announces Agreement to Join Salt River Project and Google Long Duration Energy Storage Collaboration |
| 2026-02-19 | Press release | ESS Schedules Fourth Quarter and Full Year 2025 Financial Results Conference Call on Thursday, March 5, 2026 at 5:00 p.m |
| 2026-02-19 | Press release | ESS Appoints Randall Selesky as Chief Commercial Officer to Accelerate Global Growth |
| 2026-02-18 | Press release | ESS Acquires VoltStorage GmbH Intellectual Property and Assets to Advance Flexible Long-Duration Energy Storage |
| 2026-02-05 | Press release | ESS Tech, Inc. Issues Shareholder Letter and Provides Corporate Update |
| 2026-01-30 | Press release | ESS Tech, Inc. Announces Closing of $15 Million Registered Direct Offering Priced at a Premium to Market |
| 2026-01-29 | Press release | ESS Tech, Inc. Announces $15 Million Registered Direct Offering Priced at a Premium to Market |
| 2026-01-29 | Press release | ESS Tech Awarded $9.9 Million Contract from Concurrent Technologies Corporation and U.S. Air Force Research Laboratory |
| 2026-01-06 | Press release | ESS Tech Appoints Drew Buckley as Chief Executive Officer and Announces New Leadership Changes |
| Press release | Press Release |