Independently tested at the University of the German Federal Armed Forces in Munich, demonstrating up to 99.99% RF signal blocking across defence-relevant frequencies
Ottawa, Ontario -
Newsfile Corp. - June 1, 2026 -
Focus Graphite Inc. (TSXV: FMS) (OTCQB: FCSMF) (FSE: FKC0) ("
Focus" or the "
Company"), a Canadian developer of high-grade flake graphite deposits and advanced graphite materials for battery, defence, and industrial applications, is pleased to announce that it has entered into a non-binding Letter of Intent ("
LOI") with PermaTint Ltd. ("
PermaTint") (Shielding Solution) of Concord, Ontario, a developer and manufacturer of specialty coatings, to evaluate the integration of the Company's graphite into the formulation through planned validation testing, and to assess the potential acquisition or licensing of a proprietary radio frequency ("
RF") shielding coating formulation (the "
Product") containing graphite and demonstrating high-performance signal blocking capabilities. The Product, which contains natural flake graphite, has been independently tested by Shielding Solution, a division of PermaTint, at the University of the German Federal Armed Forces in Munich (Universitat der Bundeswher Munchen) in accordance with internationally recognized standards (IEEE 299 and ASTM D4935), which measure how effectively materials and systems block radio frequency signals. Testing across frequencies ranging from 5 GHz to 40 GHz demonstrated shielding effectiveness of approximately 36 dB to over 50 dB depending on coating thickness, corresponding to the ability to block up to 99.99% of electromagnetic radiation. Potential applications for RF shielding coatings include military and defence infrastructure, aerospace systems, secure communications environments, data centers, and protection of sensitive electronics from electromagnetic interference and signal intrusion. These applications are becoming critical as next-generation communications, electronic protection systems, and high-frequency technologies rapidly expand across defence and advanced technology sectors. Additional testing across lower frequency bands (100 MHz to 8 GHz) confirmed consistent shielding performance across commercial and defence-relevant communication ranges, including 5G and wireless systems. The Company intends to conduct validation testing using its own graphite material, with planned third-party testing to ensure direct comparability of results and accelerate potential commercialization efforts. This initiative builds on Focus' advancing downstream processing capabilities, with graphite ore from the Lac Knife Project nearing completion at SGS Canada Inc ("
SGS") in Lakefield, Ontario (see news release dated March 2, 2026). The Company expects to have approximately 750-800kg of high-quality graphite concentrates, which will then be purified and upgraded for qualification and testing across multiple advanced material applications, including RF shielding. The LOI outlines a framework under which Focus may acquire full intellectual property rights to the formulation or enter into a licensing arrangement to manufacture and commercialize the product, while maintaining flexibility to pursue partnerships with third parties to support scale and market adoption, with final terms subject to definitive agreement and completion of due diligence. "Control of the electromagnetic spectrum is fundamental to modern military operations," said Wayne Eyre, General (Ret'd), Advisor to Focus Graphite. "Technologies that can reliably block and manage electromagnetic signals are critical to protecting communications, infrastructure, and personnel. Pairing that capability with secure, allied graphite supply directly supports defence readiness and long-term resilience." "Graphite grade is the ultimate gatekeeper to high-value markets," said Dean Hanisch, Chief Executive Officer of Focus Graphite. "North American producers cannot compete with adversarial supply on cost of capital or low-cost labour; we must lead on performance. Our unusually high-grade material is the key to unlocking premium, specialized downstream sectors like defence-grade RF shielding, where margins and performance requirements are high. As we finalize our concentrate work at SGS, this RF shielding formulation provides a clear, high-potential pathway to accelerate our downstream commercialization strategy." As governments and industry move to secure critical material supply chains, Focus continues to advance its strategy to supply high-performance graphite and downstream solutions aligned with G7 and allied priorities. The Company continues to engage with partners across multiple sectors and welcomes collaboration opportunities related to graphite supply, thermal purification, and advanced materials development across defence, energy storage, and industrial applications.
Qualified Person The technical content disclosed in this news release was reviewed and approved by Richard...
