PyroGenesis Produces Battery-Grade Graphite from Carbon Black Using Proprietary Plasma System

MONTREAL, April 23, 2026 (GLOBE NEWSWIRE) -- PyroGenesis Inc. (“PyroGenesis” or “the Company”) (TSX: PYR) (OTCQX: PYRGF) (FRA: 8PY1), a leader in ultra-high temperature processes and engineering innovation, and a plasma-based technology provider to heavy industry & defense, announces, further to its  press release dated April 21, 2026 , the successful production of high quality battery-grade graphite from carbon black, using a proprietary plasma process. Of note, the carbon black used to produce the graphite was itself produced by PyroGenesis in a first-ever achievement where both a natural gas-powered and a methane-powered plasma torch acted as the sole feedstock (i.e.