GBM Finds High-Grade Gold Beyond Twin Hills Resource Boundaries

High-Grade Intersections Push Beyond 309 Resource

GBM Resources Limited (ASX:GBM) has produced its strongest result in this batch of Twin Hills drilling with 18 metres at 12.01 grams per tonne gold from 247 metres at the 309 deposit. The interval includes 2 metres at 104.61g/t and sits outside the current mineral resource estimate, around 85 metres from an earlier 37-metre intersection grading 5.00g/t.

The proximity of the two results gives GBM a defined area for follow-up drilling, although the company says the new intersection is a downhole length and its true width is not yet known. The same hole also returned a shallower 5-metre interval at 6.66g/t, including 2 metres at 16.20g/t, while other 309 holes delivered 5 metres at 5.80g/t, 21 metres at 1.29g/t, 10 metres at 1.26g/t and 22 metres at 0.78g/t.

Lone Sister Adds Broad Mineralisation Outside MRE

At Lone Sister, hole LSDH011 returned 37 metres at 2.40g/t from 285 metres outside the current resource. The interval contains several higher-grade zones, including 1 metre at 16.65g/t and 4 metres at 7.77g/t, and was drilled in the same area as a previously reported 52-metre intersection at 2.77g/t.

LSDH011 also produced a second 18-metre interval at 1.40g/t from 328 metres, including 8 metres at 2.43g/t. GBM says the broad intervals and internal higher-grade zones provide more information for testing lateral and down-plunge extensions, but the results remain exploration data rather than a revised resource or economic assessment.

Assays Clear the Path to Resource Update

The Stage 2 program covers 50,000 metres and is designed to expand the Twin Hills mineral resource, improve confidence within the existing estimate and better define higher-grade mineralisation. GBM says the latest drilling is also helping refine the relationship between the milled matrix breccia host at 309, structural controls and the distribution of higher-grade gold.

The laboratory backlog has now been addressed, with approximately 2,150 metres of assays still pending from 309 and 1,400 metres from Lone Sister. Those results will feed into the geological and mineralisation models before the planned Twin Hills MRE update. Twin Hills currently contributes approximately 999,200 ounces to GBM’s reported 1.84 million-ounce Drummond Basin resource base, using the resource categories and cut-offs disclosed in the announcement.

Continuity Matters More Than the Headline Grade

The numbers are plainly encouraging, particularly the isolated 104.61g/t sub-interval. The more consequential test is whether further drilling confirms the continuity, geometry and true thickness of these zones across enough of the deposits to support a larger and more confident resource. GBM’s stated next steps include additional step-out and infill drilling, along with metallurgical work to assess processing options.