HPQ ENDURA+ GEN4 21700 Cells Achieve UN 38.3 Certification Supports Ongoing Customer Qualification Activities

• The Company is currently supporting customer qualification programs with multiple participants in the drone and defense sectors. The successful completion of UN 38.3 certification allows its GEN4 cells to be legally shipped internationally for these evaluation and qualification activities.
  
• The Company outlines its commercialization pathway, demonstrating how each milestone systematically reduces technical, regulatory and commercial risk on the path to commercial purchase orders and broader market deployment.

MONTREAL, Canada — HPQ Silicon Inc. (“HPQ” or the “Company”) (TSX-V: HPQ) (OTCQB: HPQFF) (FRA: 8PY1), a technology company specializing in advanced materials innovation and the development of next-generation processes, announces that its HPQ ENDURA+ Gen4 21700 lithium-ion battery platform has successfully achieved UN 38.3 transportation certification, representing another important milestone in the development of the Company’s silicon-anode battery platform.

The certification removes a key regulatory hurdle by enabling the international shipment of HPQ ENDURA+ Gen4 batteries for customer qualification, evaluation and commercial applications.
Product development follows a phased process in which each stage progressively reduces technical, regulatory and commercial risk, moving the technology closer to commercial readiness. The illustration below outlines this pathway and highlights HPQ’s current stage of development.

“Our initial commercial focus on drone and defense applications is a deliberate strategic decision,” said Bernard Tourillon, Chairman, President and CEO of HPQ Silicon Inc. “Global defense battery demand exceeded 4 GWh in 2025, with nearly 40% generated by unmanned drone systems—a share that has more than doubled in just five years [1]. As modern defense operations increasingly rely on drones, demand for lighter, higher-energy batteries continues to accelerate [1 & 2]. In response to this growing demand, Novacium developed its silicon-anode battery technology, for which HPQ holds the exclusive commercialization rights in North America under the HPQ ENDURA+ brand, to deliver greater endurance, higher payload capacity and improved mission performance. The Company believes that establishing commercial references in these high-value markets is consistent with its commercialization strategy of pursuing broader battery markets as customer qualification progresses and production capacity increases.”

Drone Applications

To illustrate this commercialization strategy, Novacium developed, at the request of a European drone manufacturer, the Company’s AA NOVA 6S3P drone battery pack. This next-generation high-performance lithium-ion battery was specifically designed to meet the growing demand for lighter, higher-energy solutions for advanced drone applications.

The AA NOVA 6S3P battery pack addresses a rapidly expanding market opportunity. The global military drone market is estimated at approximately US$35 billion in 2026 and is projected to exceed US$109 billion by 2031 [2], with North America accounting for roughly 40% of global demand [3]. Through its exclusive North American commercialization rights under the HPQ ENDURA+ brand, HPQ believes its technology is well suited for applications in this growing market. The Company believes that establishing commercial references in these high-value markets is consistent with its commercialization strategy of pursuing broader battery markets as customer qualification progresses and production capacity increases.

The AA NOVA 6S3P and other battery platforms are currently being evaluated by multiple parties active in the drone and defense sectors as part of ongoing customer qualification programs. While the Company cannot comment on the timing or outcome of individual qualification programs, These ongoing evaluations are consistent with industry demand for battery technologies capable of delivering greater endurance, improved mission performance and reduced weight.

” The AA NOVA 6S3P program demonstrates our strategy for advancing our battery technologies toward commercial adoption,” concluded Mr. Tourillon. “Rather than relying on a single opportunity, HPQ and Novacium are building a diversified pipeline of customer qualification programs across multiple high-value applications. Each successful qualification represents another step in advancing the HPQ ENDURA+ platform.”

Reference Sources

1. Source Benchmark Minerals [Link to article]
2. Source Laser Focus world – article on LYNRED [link to article]
3. Source Markets and Markets [link to article]
4. Source Grand View Research [link to Article]