ESS Tech faces NYSE delisting after failing to regain compliance with listing standards

• NYSE Regulation started delisting proceedings for ESS Tech’s NYSE-listed common stock (GWH) on Sept. 24, 2026.
• Decision cites failure to regain compliance with NYSE equity or market-capitalization standards by the end of the allowed plan period.
• Rule requires at least $50 million in stockholders’ equity or a $50 million 30-trading-day average market capitalization.
• Company plans to appeal to an NYSE board committee within the 10-business-day window.
• NYSE will set a suspension date if the appeal is not filed or is unsuccessful, then seek SEC approval to delist.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. ESS Tech Inc published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001819438-26-000086), on September 30, 2026, and is solely responsible for the information contained therein.