Lefroy Exploration (ASX:LEX) confirms high grade continuity at Burns Gold Deposit

Lefroy Exploration has delivered a technically important drilling update from its Burns Gold Deposit, reinforcing the integrity of the high grade core within an existing resource and advancing metallurgical understanding at a project located in one of Western Australia’s most established gold districts.

The results are derived from a targeted diamond and reverse circulation drilling program designed to validate the geological model and generate representative material for metallurgical test work, with outcomes that align closely with the existing Mineral Resource Estimate.

Highlights

•  Diamond drilling confirmed the high grade core of the Burns Gold Deposit with significant intersections including 20.87m @ 2.69 g/t Au from 131.13m and 6.4m @ 2.59 g/t Au from 191m
• A metallurgical reverse circulation hole targeting oxide mineralisation returned 30m @ 5.76 g/t Au from 24m, including 5m @ 17.30 g/t Au from 44m
• Shallow RC drilling along strike intersected additional gold mineralisation north of the existing Burns resource
• Definitive metallurgical test work results are expected by the end of January

The Burns Gold Deposit is part of Lefroy’s broader Lefroy Gold Project, situated within the Kambalda Kalgoorlie gold district of Western Australia, approximately 70km southeast of Kalgoorlie.

The deposit hosts a total Mineral Resource Estimate of 42.96 Mt @ 0.36 g/t Au for 497,472 oz, inclusive of the Burns High Grade component of 4.22 Mt @ 1.18 g/t Au for 159,285 oz, which is reported within 200m of surface and forms the focus of the current drilling campaign.

The recently completed diamond drilling program consisted of a single 270m hole designed to intersect the high grade core of Burns and provide material for definitive metallurgical test work.

Drilling successfully intersected multiple zones of elevated gold grades, confirming the geometry and grade distribution predicted by the existing resource model.

Mineralisation is hosted within strongly biotite altered mafic rocks and is characterised by K feldspar veining with associated actinolite, chalcopyrite, magnetite and minor bornite, consistent with previous interpretations at the deposit.

To complement the diamond drilling, an additional reverse circulation hole was completed to ensure oxide material was included in the metallurgical program after a localised paleochannel sequence was identified.

This hole returned strong near surface gold grades, validating the oxide component of the Burns resource and confirming the continuity of high grade mineralisation across different weathering profiles.

Lefroy Chief Executive Officer Graeme Gribbin said

“the significant near surface gold assay results returned from the recently completed diamond and RC metallurgical drilling programs at Burns truly is a reminder of the exceptional nature of the high grade core of the Burns Central deposit”,

noting that the company is focused on integrating the pending metallurgical results to inform future development options at the project.

In parallel, the company undertook shallow RC drilling along strike to the north of the existing Burns resource using a specialist RC lake rig.

This program intersected additional zones of gold mineralisation beyond the current resource boundary, confirming that the mineral system continues and shallows to the north, in line with the established geological and mineralisation model.

As metallurgical test work results are received later this month, Burns moves into the next phase of technical evaluation.

Within a region that hosts several long life gold operations, the confirmation of high grade continuity, shallow mineralisation and consistent geology reinforces Burns as a strategically important asset within Lefroy’s gold portfolio and provides a clear technical foundation for the next stage of project assessment.

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