MONTREAL, QC — January 8, 2026 — Leads & Copy — HPQ Silicon Inc. (TSX-V: HPQ) (OTCQB: HPQFF) (FRA: O08) has announced that its HPQ ENDURA+ lithium-ion battery cells have received UL 1642 certification, a core safety standard for commercial acceptance of lithium-ion cells in the United States.
The certification applies to both the 18650 (4,000 mAh) and 21700 (6,000 mAh) cell formats, confirming compliance with safety requirements demanded by U.S. OEMs, integrators, and end-market customers.
Bernard Tourillon, President and CEO of HPQ Silicon Inc., stated that UL 1642 certification gives OEMs and integrators confidence that safety has been engineered into the core of the product. He added that this removes a key qualification hurdle and allows commercial conversations to focus on performance, scalability, and integration rather than regulatory risk.
UL 1642 certification is widely regarded as the technical threshold for selling lithium-ion cells in the U.S. market. HPQ’s achievement marks a regulatory milestone, enabling direct engagement with North American customers across electronics, mobility, embedded systems, and professional equipment markets.
HPQ’s HPQ ENDURA+ cells met all applicable UL 1642 requirements, including short-circuit protection, resistance to overcharge and forced discharge, thermal stability, mechanical integrity under impact and crush conditions, and tolerance to electrical and mechanical abuse.
The company said that passing these tests confirms the HPQ ENDURA+ cells demonstrate intrinsic safety, thermal control, and structural robustness required for deployment in regulated U.S. applications. The certification applies at the cell level, making it a prerequisite for downstream integration into certified battery packs and finished products.
With the certification, HPQ can engage directly with North American OEMs, accelerate qualification programs, and advance commercial agreements without regulatory constraints tied to cell safety compliance.
HPQ approached UL 1642 certification with technical confidence, the company said. Many underlying safety and abuse tests had already been replicated internally during prior development and qualification phases. Formal certification now provides third-party confirmation that the HPQ ENDURA+ platform meets U.S. safety expectations at scale.
HPQ has completed the core regulatory requirements for U.S. commercialization with both UN 38.3 transport certification and UL 1642 safety certification in place. The Company is positioned to transition from certification and validation activities toward customer engagement, qualification programs, and early commercial deployment.
According to Tourillon, HPQ ENDURA+ is no longer being evaluated as a development program, but as a compliant product platform that can be integrated into existing supply chains. The credibility allows a move from technical validation to commercial execution, including customer qualification, volume planning, and partnership structuring in the U.S.
The milestone underscores HPQ’s progression from advanced battery research and development to market-ready execution. The HPQ ENDURA+ platform is now cleared for U.S. commercial pathways, enabling the Company to focus on scaling partnerships, advancing supply discussions, and converting technical progress into revenue-driven outcomes.
In partnership with its research and development partner Novacium, HPQ 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 producer of fumed silica and high-purity silicon, with technical support from PyroGenesis Inc.
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.
Contact:
Bernard Tourillon, President and CEO of HPQ Silicon Inc.
Source: HPQ Silicon Inc.
