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 modulesto its portfolio.

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