Mr. Bernard Tourillon reports

HPQ SILICON REPORTS 6,696 MAH GEN4 21700 CELL PERFORMANCE AMONG THE HIGHEST REPORTED GLOBALLY

HPQ Silicon Inc. has noted that 21700 cylindrical cells manufactured using Novacium SAS's GEN4 silicon-based anode material have achieved an average discharge capacity exceeding 6,600 mAh (milliampere-hours), with a record cell reaching 6,696 mAh at 319.9 Wh/kg (watt-hours per kilogram) gravimetric and 906.2 Wh/L (watt-hours per litre) volumetric energy density.

• GEN4 21700 cells achieve an average capacity above 6,600 mAh, with a record cell reaching 6,696 mAh -- among the highest capacities reported globally in this format;
• Energy density of 319.9 Wh/kg and 906.2 Wh/L confirmed; placing GEN4 21700 cells within the upper range of currently reported performance;
• GEN4 is a 45-per-cent improvement over graphite baseline and 9-per-cent advance over GEN3.

These results represent continuing development and validation activities as part of HPQ's broader commercialization efforts in silicon-based battery materials.

Commercially available 21700 graphite cells typically deliver between 4,800 and 5,000 mAh. Capacities above 6,500 mAh in this format remain limited to a small number of developers globally, including Molicel, EVE Energy and Amprius.

The result is the latest step in a consistent generational progression: from a 2,778 mAh graphite reference in 18650 format, through GEN1 (approximately 3,153 mAh), GEN2 (approximately 3,808 mAh), GEN3 (approximately 4,030 mAh in 18650/approximately 6,050 mAh in 21700), to GEN4's current 6,600-plus mAh average -- a 45-per-cent improvement over the graphite baseline and a 9-per-cent advance over GEN3 in the same format. Based on current development progress, HPQ anticipates further performance improvements, with future iterations targeting the 7,000 mAh range as part of its continuing material optimization road map.

HPQ holds exclusive North American rights to commercialize Novacium's GEN3 and GEN4 silicon-based battery materials under the HPQ Endura+ brand.

"Reaching an average above 6,500 mAh, with a peak of 6,696 mAh, using a material that has not yet been fully optimized, confirms we have an industrially viable, high performance solution advancing within our commercialization pathway," said Bernard Tourillon, president and chief executive officer of HPQ Silicon. "To our knowledge, this level of capacity ranks among the highest reported for an industrial 21700-format cell."

"These results validate the strategic direction we have pursued since GEN1 and support the potential for advanced applications in electric vehicles, drones and consumer electronics," added Dr. Jed Kraiem, chief operating officer of Novacium.

About HPQ Silicon Inc.

HPQ Silicon is a Quebec-based TSX Venture Exchange industrial issuer (TSX-V: HPQ) focused on innovation in advanced materials and critical process development. In partnership with its research and development partner Novacium -- of which HPQ is a shareholder -- the company is advancing next-generation silicon-based anode materials (GEN3) for batteries, commercializing its Endura+ lithium-ion cells and developing breakthrough clean-hydrogen and waste-to-energy technologies, for which HPQ holds exclusive North American rights.

HPQ is also pursuing proprietary technologies to become a low-cost, zero CO2 (carbon dioxide) producer of fumed silica with technical support from PyroGenesis Inc. Together, these initiatives position HPQ to capture growth opportunities in the energy storage, clean hydrogen and advanced materials markets essential to achieving global net-zero goals.

About Novacium SAS

Novacium is an innovative technology start-up created in 2022 in France. It is an engineering and R&D (research-and-development) company dedicated to materials for energy, with a specialization in silicon and hydrogen. Novacium is developing two technologies. The first concerns a new silicon-based anode material that significantly increases the capacity of lithium-ion batteries. Novacium's second activity is the generation of hydrogen. Novacium is developing an autonomous hydrogen generation system for civil and military applications fuelled by a patented alloy based on silicon and aluminum.

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