PyroGenesis Confirms Additional Independent Verification of Its Fumed Silica Meeting Commercial Grade "150"

Executive Summary

• Independent verification confirms that Test #7 of the fumed silica reactor (FSR) achieved commercial‑grade specific surface area (~150 m²/g) and the required viscosity for industrial use.
• The pilot plant has progressed from an initial 26 m²/g to a current 191 m²/g, demonstrating scalability of lab‑scale results and positioning PyroGenesis to supply fumed silica to multiple high‑value markets.
• PyroGenesis holds a 50 % interest in HPQ Polvere Inc. and an exclusive equipment supply arrangement for any future commercialization of the FSR technology.

Key Details

• Test Verification: Independent analysis (press release dated July 9 2024) confirms Test #7 meets commercial benchmarks:
• Specific surface area ≈ 150 m²/g (BET).
• Viscosity meets requirements for commercial‑grade fumed silica.
• Pilot Plant Progression: Surface area improvements over recent months:
• Initial result – 26 m²/g.
• Current best – 191 m²/g.
• Target grades include 90, 130, 150, 200, and 300 m²/g for various applications.
• Commercial Implications: Viscosity performance enables use in coatings, adhesives, sealants, inks, elastomers, insulation binders, and other industrial sectors where rheology efficiency is critical.
• Strategic Positioning:
• PyroGenesis owns 50 % of HPQ Polvere Inc., the subsidiary developing the FSR pilot plant for HPQ Silicon Inc.
• Exclusive right to supply all equipment related to commercialization of the process.
• Technology Highlights: The FSR converts quartz to fumed silica in a single, eco‑friendly step without chemicals and with no hazardous by‑products; the plant is fully operational and undergoing scale‑up testing.

Notable Quotes

“The results of test 7… confirm that the fumed silica reactor is now producing fumed silica at the important 150 commercial product grade.” – P. Peter Pascali, President & CEO, PyroGenesis

“The viscosity results are particularly noteworthy, as it indicates that fumed silica produced at the pilot plant can be suitable for industrial applications… where viscosity… is a critical performance metric.” – P. Peter Pascali