Expands relationship with one of the world's largest integrated environmental services companies. MONTREAL, July 02, 2025 (GLOBE NEWSWIRE) -- PyroGenesis Inc. ("PyroGenesis") (http://pyrogenesis.com) (TSX: PYR) (OTCQX: PYRGF) (FRA: 8PY1), a high-tech company that designs, develops, manufactures and commercializes advanced all-electric plasma processes and sustainable solutions to support heavy industry in their energy transition, emission reduction, commodity security, and waste remediation efforts, announc ...