Company Aligns Resources to Support Expanded Focus on AI Infrastructure and Data Center Markets

ESS Tech, Inc. (NYSE:GWH) ("ESS" or the "company"), a leading provider of non-lithium energy storage solutions, today announced strong early customer engagement for its planned U.S.-made sodium-ion battery energy storage system (BESS) offering, focused on short- and medium-duration applications that have historically been served by lithium-ion systems.

Since announcing its letter of intent with Alsym Energy seven weeks ago, ESS has generated significant customer interest for sodium-ion solutions across data centers, critical infrastructure, and utility markets, exceeding demand expectations with limited outbound marketing. The company has now developed early-stage opportunities approaching $1 billion for its sodium-ion solutions and is accelerating development of its sodium-ion BESS platform to meet growing near-term demand for safer, domestically sourced energy storage solutions.

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