https://www.thestreet.com/press-releases/ess-inc-a-long-duration-energy-storage-solutions-company-to-become-a-publicly-listed-company-through-merger-with-acon-s2-acquisition-corp-15648234
ESS Inc., A Long-Duration Energy Storage Solutions Company, To Become A Publicly Listed Company Through Merger With ACON S2 Acquisition Corp. - TheStreet
ESS Tech, Inc. ("ESS Inc.