Press release

Eos Energy Storage Provides Business and Transaction Update

Business Wire | August 31, 2020

EDISON, N.J.--(BUSINESS WIRE)--Eos Energy Storage (“Eos”), a leading manufacturer of safe, low-cost, and long-duration zinc hybrid cathode (Znyth™) battery energy storage systems, today announced three business updates and additional details regarding the potential business combination transaction (the “business combination”) with B. Riley Principal Merger Corp. II (NYSE: BMRG, BMRG WS, BMRG.U) (“BRPM II"), a special purpose acquisition company sponsored by an affiliate of B. Riley Financial, Inc. (Nasdaq: RILY) (“B. Riley Financial”), announced on June 24, 2020.

Joe Mastrangelo, Chief Executive Officer of Eos, said, “This is an exciting time for Eos. We are pleased to announce orders to deliver 1.5 GWh of our battery energy storage solution, which will be manufactured in the USA at HI-POWER, our state of the art joint venture multi-gigawatt manufacturing facility, co-owned with Holtec International (“Holtec”), located in Pittsburgh. We have further deepened our relationship with Holtec through their additional investment in Eos. We continue to make progress with our business combination with BRPM II, and we are on track to imminently execute a definitive agreement.”

Joe Mastrangelo, added, “The business combination will allow Eos to achieve its long-term potential and fuel our mission. Our groundbreaking aqueous zinc battery technology is well-positioned to be a leading solution to meet short-term and long-term demand for safe, sustainable, and scalable long-duration clean energy.”