ESS Tech, Inc. became a publicly traded company through its business combination with STWO Acquisition Corp, a blank-check company that conducted its initial public offering in 2021. The combined entity trades on the New York Stock Exchange under the ticker GWH. ESS Tech develops iron flow battery systems targeting grid-scale and commercial long-duration energy storage applications, positioning the company within the clean energy and industrial technology sector. The company filed an 8-K current report with the SEC on May 22, 2023, fulfilling its ongoing disclosure obligations as a post-combination public company. For complete SPAC deal data, filing history, and performance analytics on ESS Tech and thousands of other transactions, sign up for full data access at SpacDesk.