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FIRST SAMPLES OF HPQ PRODUCED COMMERCIAL GRADE FUMED SILICA DELIVERED TO THIRD PARTY

MONTREAL, Canada, August 24 th, 2023 — HPQ Silicon Inc. (“HPQ” or the “Company”) (TSX-V: HPQ) (OTCQB: HPQFF) (FRA: O08), a technology company specializing in green engineering processes for silica and silicon material production is pleased to provide shareholders with an update on an ongoing thirdparty commercial validation of HPQ produced Fumed Silica samples.

The sample material was produced by the Fumed Silica Reactor ('FSR'), which is currently a standalone project under HPQ’s wholly-owned subsidiary, HPQ Silica Polvere Inc. ('HPQ Polvere'), in partnership with PyroGenesis Canada Inc. (TSX: PYR) (NASDAQ: PYR) (FRA: 8PY) (“Pyrogenesis”) as technology and plasma expertise partner.

PRODUCING AT LAB-SCALE COMMERCIAL GRADE FUMED SILICA By using a lab-scaled model of HPQ Polvere’s proprietary Fumed Silica Reactor ('FSR') technology, PyroGenesis was successful in producing fumed silica. Preliminary tests and examination confirm that the produced material has the structural characteristics similar to commercially available fumed silica. This milestone signifies that HPQ Polvere has the only technology capable of using raw quartz (SiO2) as feedstock to produce commercial grade fumed silica—in one step.

IMAGES OF MATERIAL UNVEILED

THIRD-PARTY TESTING OF HPQ POLVERE FSR PRODUCED FUMED SILICA UNDERWAY

Currently, a first batch samples of this material was shipped, received, and is already undergoing material quality evaluation by a third party under a non-disclosure agreement (NDA). We are also engaged in active conversations with another party on the signing of an NDA and the subsequent shipment of samples.

“Third-party interests in our produced material have the potential to develop into partnership in our venture which could materialize in the form of offtake agreements, positioning them as prospective buyers of our material on commercial scale,” said Mr. Bernard Tourillon, President and CEO of HPQ Silica Polvere Inc and HPQ Silicon Inc. “Furthermore, this evaluation phase could extend to encompass our innovative production process, piquing their interest in adopting our technology as well.

” HPQ POLVERE FUMED SILICA INITIATIVE - FROM LAB-SCALE TO COMMERCIAL SCALE

Fumed silica, also known as Pyrogenic Silica, is a fine white powder characterized by its high surface area and low bulk density.

This is precisely where HPQ Polvere's strategy comes into play. By establishing a scalable production capability for fumed silica, ranging from 250 tonnes per year (TPY) to 2,500 TPY, we are well-aligned with both current and future market dynamics. We are committed to a diligent expansion of our Fumed Silica production capacity. Currently, at 50 kg per year at lab scale, we aim to achieve 50 TPY within 12 months and subsequently exceed 250 TPY per reactor within the next 36 months.