MONTREAL, Oct. 16, 2025 (GLOBE NEWSWIRE) — PyroGenesis Inc. (“PyroGenesis”) (TSX: PYR) (OTCQX: PYRGF) (FRA: 8PY1), the leader in innovating for ultra-high temperature processes and engineering, and a technology provider to heavy industry & defense, announces today that further to its press release dated October 1, 2025 , the Company has completed the first tranche of the First Unit Group of the previously announced non-brokered private placement (the “Private Placement”) by issuing and selling an aggregate of 5,555,556 units (the “Units”) of the Company at a price of $0.63 per Unit, for gross proceeds of approximately $3,500,000 to the Company.

Each Unit within the First Unit Group consists of one common share of the Company (a “Common Share”) and one common share purchase warrant (the

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