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Focus Graphite Achieves 99.9996 wt.% Ultra-High Purity and 2.03 ppm EBC in Follow-On Testing
5N+ Purity and On-Spec EBC Confirm Lac Knife's Potential as a North American Source of Ultra-High...
About this update from Focus Graphite Inc.
[{"type":"text","content":"Focus Graphite Achieves 99.9996 wt.% Ultra-High Purity and 2.03 ppm EBC in Follow-On Testing5N+ Purity and On-Spec EBC Confirm Lac Knife's Potential as a North American Source of Ultra-High-Performance Graphite ApplicationsOttawa, Ontario--(Newsfile Corp. - December 11, 2025) - Focus Graphite Inc. (TSXV: FMS) (OTCQB: FCSMF) (FSE: FKC0) (\"Focus\" or the \"Company\") a Canadian developer of high-grade flake graphite deposits and innovator of next-generation battery technology, is pleased to announce that follow-on purification and elemental analysis of material from its Lac Knife deposit (concentrate Lot ID: GN25073005) achieved 99.9996 wt.% (\"5N+\") and an Equivalent Boron Concentration (\"EBC\") of 2.03 ppm, confirming the material is within nuclear-grade specification and meets the technical thresholds required for several high-value advanced materials markets.The test work, conducted using electrothermal purification with no halogen gases (e.g. chlorine) or acids, produced this ultra-pure result in two (2) hours, further validating a chemical-free, environmentally advantageous pathway compared to conventional purification methods. These results directly support Focus's ongoing engineering and scale-up programs funded under Natural Resources Canada's (\"NRCan\") Global Partnerships Initiative (\"GPI\"), under which the Company was awarded a non-repayable contribution of up to $14.1 million to accelerate North American capacity for clean, advanced material processing. Subsequent elemental analysis calculated in accordance with ASTM C1233-15: Standard Practice for Determining Equivalent Boron Contents of Nuclear Materials yielded an Equivalent Boron Concentration (\"EBC\") of 2.03 ppm (Table 1), which falls below the critical 3 ppm threshold often cited for nuclear-grade graphite applications. The calculated EBC value is the most critical test of purity for nuclear industry use.These results suggest that Lac Knife graphite has the potential to serve markets requiring ultra-high-purity large and jumbo flake natural graphite. Achieving both 5N+ purity and a high proportion of large-flake concentrate is uncommon in the natural graphite industry and may provide Focus with opportunities in markets historically reliant on synthetic graphite or otherwise inaccessible to peers. These findings are consistent with peer-reviewed research ...