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HPQ Silicon Secures UN 38.3 Certification for HPQ ENDURA+ 18650 & 21700 Cells
MONTREAL, Dec. 16, 2025 (GLOBE NEWSWIRE) -- HPQ Silicon Inc. (“HPQ” or the ...
About this update from Hpq Silicon Inc
[{"type":"text","content":"HPQ Silicon Secures UN 38.3 Certification for HPQ ENDURA+ 18650 & 21700 CellsClearing the Regulatory Gate for Global Commercial Shipments\n\n\n\n MONTREAL, Dec. 16, 2025 (GLOBE NEWSWIRE) --\n \n\n HPQ Silicon Inc.\n \n\n (“HPQ” or the “Company”) (TSX-V:\n \n HPQ\n \n , OTCQB:\n \n HPQFF\n \n , FRA:\n \n O08\n \n ), a technology company specializing in advanced materials innovation and the development of next-generation processes, is pleased to announce that it has obtained UN 38.3 certification for its first high-performance lithium-ion cells in the HPQ ENDURA+ line: the 18650 (4,000 mAh) and 21700 (6,000 mAh) formats developed with its technology partner Novacium SAS (“Novacium”).\n \n\n This certification, delivered by an accredited independent laboratory, confirms that the cells meet the stringent international safety and transport requirements for lithium-ion batteries. It validates their design robustness, as well as their testing protocol and quality standards.\n \n\n\n This milestone marks a decisive step in HPQ’s commercialization strategy\n \n .\n \n\n Following the launch of the HPQ ENDURA+ brand and the start of cell production in August 2025, UN 38.3 certification now provides the regulatory clearance required for shipping, distribution, and industrial adoption. The achievement strengthens HPQ’s evolution from a research-focused company into an industrial supplier capable of producing and delivering certified products at scale.\n \n\n\n\n Cylindrical 18650 and 2170 HPQ Endura+ cells.\n \n\n\n “Obtaining UN 38.3 certification marks HPQ’s transition from R&D and lab-scale testing into a fully compliant commercial and industrial phase,”\n \n said Bernard Tourillon, President and CEO of HPQ Silicon Inc.\n \n “We’re proud to demonstrate that HPQ ENDURA+ cells are not only high-performance products but also safe, certified, and ready for global transport and export.”\n \n\n\n To earn this certification, the HPQ Endura+ 18650 (4,000 mAh) and the HPQ Endura+ 21700 (6000 mAh) cells successfully passed all eight mandatory UN 38.3 tests:\n \n\n T.1 –\n \n Altitude Simulation\n \n : safe performance at low pressure\n \n T.2 –\n \n Thermal Cycling\n \n : –40 °C to +75 °C\n \n T.3 –\n \n Vibra...