NEWARK, Calif. & WARSAW, Poland, June 17, 2026--(BUSINESS WIRE)--Ohmium International Inc., a leading manufacturer of high-efficiency, modular Proton Exchange Membrane (PEM) electrolyzers, and Hynfra P.S.A., a prominent green hydrogen and green ammonia project developer, today announced the signing of a master cooperation agreement to advance green hydrogen projects in Mauritania, Jordan,...