08:54 AM EDT, 10/23/2025 (MT Newswires) -- HPQ Silicon ( HPQFF ) Thursday said it has completed Test Series 7 of its Fumed Silica Reactor (FSR) pilot plant. A set of samples have been sent to an accredited third-party laboratory for certification, with results expected within 10 business days.

"Once these results are received, we will be able to define the goals and engineering upgrades for Test Cycle #8, which we anticipate will take us closer to the end goal of the highest fumed silica surface area grades of 300 m2/g," said chief executive Bernard Tourillon.

"We're moving from proof-of-concept toward measurable market traction-aligning with HPQ's broader objective of creating low-energy carbon, high-value materials that compete globally while supporting North American supply-chain resilience."

The pilot plant, designed and built by engineering partner PyroGenesis ( PYRGF ) marks another step in HPQ's drive to commercialize a direct-quartz-to-fumed-silica manufacturing process more cost-effectively and with far less environmental impact, the company said.