Leading global manufacturer confirms that material achieved a surface area of 136 m²/g, more than triple previous results and confirming HPQ’s single-step process can match commercial-grade benchmarks

MONTREAL, Sept. 04, 2025 (GLOBE NEWSWIRE) — HPQ Silicon Inc. (“HPQ” or the “Company”) (TSX-V: HPQ , OTCQB: HPQFF , FRA: O08 ), a technology company driving innovation in advanced materials and critical process development, is pleased to report that its subsidiary, HPQ Silica Polvere Inc. (“HSPI”) [1] , has successfully produced commercial-grade fumed silica during Test #6 of its proprietary Fumed Silica Reactor (“FSR”) pilot project.

The test, conducted by technology supplier PyroGenesis Inc. (TSX: PYR , OTCQX: PYRGF , FRA: 8PY1 ), achieved a

surface area

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