Empire Resources Extends Copper-Gold Mineralisation Over 900m at Yuinmery

Exploration Progress at Yuinmery

Empire Resources Limited (ASX – ERL) has released assay results from the final 27 holes of its recent 42-hole, 1,828-metre air core drilling campaign at the Yuinmery Copper-Gold Project in Western Australia. The program, completed in September 2025, focused on several prospects including YT01, Marcus, Hillside, and Lorne, building on earlier drilling at Just Desserts and Trajan.

The standout outcome is the extension of copper-gold mineralisation at the YT01 prospect to over 900 metres strike length. This follows up on high-grade mineralisation discovered in June 2025 and confirms the prospect’s potential as a significant copper-gold resource, particularly in the shallow oxide zone. Notably, two holes drilled west of the previous best intercept successfully extended mineralisation by an additional 120 metres.

New Insights at Marcus and Hillside

At the Marcus prospect, drilling confirmed a newly proposed copper mineralisation model associated with gossan outcrops and quartz veins. Significant copper intercepts of around 3,400 to 3,800 ppm were returned near surface, with mineralisation open in all directions and no effective drilling below 25 metres to date. This positions Marcus as a priority target for deeper drilling in 2026.

Meanwhile, the Hillside prospect revealed encouraging supergene oxide gold mineralisation. Assays confirmed anomalous gold grades in multiple holes, with the best intercepts reaching up to 0.50 grams per tonne over 8 metres. The presence of chlorite shearing and quartz veining aligns with alteration styles typical of the nearby Murchison goldfields, underscoring Hillside’s potential as a genuine gold target.

Lorne and Next Steps

Drilling at Lorne encountered significant copper mineralisation within a lateritised gossan over a strike length exceeding 300 metres. Although some holes were limited by hard fresh gabbro preventing full depth penetration, results included a notable 33 metres at 2,275 ppm copper from surface. Plans are underway to deploy reverse circulation drilling in 2026 to better test this prospect.

Empire’s next steps include retrieving single metre samples from anomalous zones for further assay, conducting metallurgical test work on near-surface oxide and supergene ores from YT01, and designing follow-up drilling campaigns targeting the most promising prospects. The company’s Non-Executive Chairman, Michael Ruane, highlighted the encouraging nature of the results and the justification for continued exploration efforts.

Overall, these results reinforce Yuinmery’s status as a compelling copper-gold exploration project with multiple targets showing potential for resource growth. The combination of shallow oxide mineralisation and deeper sulphide targets offers a balanced pipeline for Empire’s development plans.