Eos Energy Storage, a manufacturer of zinc hybrid cathode battery energy storage systems, agreed to go public via merger with B. Riley Principal Merger, a special purpose acquisition company, in a $550m deal. Upon closing of the transaction, the combined company will be renamed Eos Energy Enterprises and intends to list its shares of common stock on Nasdaq under the ticker symbol “EOSE”. “Today marks an important milestone of advancing Eos’s mission to drive a low carbon, more resilient and sustainable energy future with our energy storage solution. We are excited to partner with the B. Riley Financial team, who share our vision of a safer and cleaner energy future powered by Eos,” Joe Mastrangelo, Eos Chief Executive Officer.