Leading Edge Materials’ Woxna Graphite Targets Premium Applications With Confirmation Of Purification Route

About this update from Leading Edge Materials Corp.

Flotation testwork produced a high-grade concentrate with 94% carbon purity retaining more than half of all particles as large flakes - a strong result for premium graphite applications and an important indicator of commercial potential. A simple, industrially practical two-stage alkaline process (without an energy-intensive pre-heating step) achieved 99.96% LOI (loss on ignition) — making it the preferred route for commercial scale-up to meet high-end industrial specifications. Testwork was conducted on historical stockpiled material that showed signs of oxidation, which is known to reduce flotation performance. Fresh ore is expected to perform better. Vancouver, June 9, 2026 – Leading Edge Materials Corp. (“Leading Edge Materials” or the “Company”) (TSXV: LEM) (Nasdaq First North: LEMSE) (OTCQB: LEMIF) provides an update on testwork completed on ore sourced from the Company’s 100% owned Woxna Graphite Mine (“Woxna”). The programme was designed to evaluate new processing techniques aimed at producing large-flake, high-purity flake graphite concentrate suitable for premium industrial and battery applications. Kurt Budge, Chief Executive Officer, writes: "These results are an important step forward for Woxna. Achieving 99.96% purity through a straightforward two-stage alkaline process — without energy-intensive pre-heating — demonstrates that Woxna can produce battery and high-end industrial grade graphite through an industrially practical and cost-effective route. Equally encouraging is the large-flake retention from flotation, which is a key value driver for premium applications.   It is also worth noting that this testwork was conducted on historical stockpiled ore showing signs of oxidation — conditions that are known to reduce flotation efficiency — so we have good reason to expect even stronger performance from freshly mined material. Taken together, these results meaningfully reinforce our confidence in Woxna's commercial potential. With global demand for natural flake graphite forecast by Benchmark Mineral Intelligence to more than double by 2035, and a supply deficit in battery-grade material already beginning to emerge, the timing for advancing Woxna toward production could not be more compelling. Europe needs a domestic, responsibly sourced graphite supply chain, and Woxna is one of very few assets on the continent capable of...

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