X0607 3 2026-07-09 1 0001805077 Eos Energy Enterprises, Inc. EOSE 0001804708 Song Haiyan false C/O EOS ENERGY ENTERPRISES, INC. TWO ALLEGHENY CENTER, NOVA TOWER 2 PITTSBURGH PA 15212 1 0 0 0 Exhibit 24 - Power of Attorney /s/ Marie Martin as attorney-in-fact for Haiyan Song 2026-07-15