Independent Analysis Confirms HPQ’s Pilot-Scale Fumed Silica Production

MONTREAL, May 21, 2025 (GLOBE NEWSWIRE) — HPQ Silicon Inc. (“HPQ” or the “Company”) (TSX-V: HPQ, OTCQB: HPQFF, FRA: O08), a technology company developing next-generation processes for advanced material manufacturing, is pleased to inform shareholders that it has received an independent analysis confirming fumed silica production. The analysis confirms Fumed Silica was produced by HPQ Silica Polvere Inc. [1] (“HSPI”)’s proprietary Fumed Silica Reactor (FSR) Pilot Plant during its four-batch Phase One test.

Further to the Company’s May 15, 2025, release, HSPI’s technology supplier, PyroGenesis Inc. (TSX: PYR, OTCQX: PYRGF, FRA: 8PY1) (“PyroGenesis”), has informed HPQ that the independent analysis of the material produced and collected in the baghouse supports the following conclusions: