GoldArc Reports 106g/t Gold Intercept from Mt Stirling Grade Control Program

28 May 2026 | Western Australia - GoldArc Resources has reported a high-grade gold intercept from the fourth round of grade control drilling at the Mt Stirling deposit, part of its Western Australian gold portfolio.

The standout result was 1m at 106g/t gold from 8m in hole BMLRC767, which GoldArc said is the highest individual grade intercept returned from the grade control program to date.

The latest results come from 141 holes for 4,021m of reverse circulation drilling, targeting the eastern sector and shallow infill areas of the Mt Stirling deposit. GoldArc said the results provide further validation of the interpreted high-grade shoot architecture at Mt Stirling.

Other significant intercepts included:

• 3m at 5.99g/t gold from 7m, including 1m at 14.00g/t gold
• 1m at 13.70g/t gold from 7m
• 2m at 7.00g/t gold from 1m, including 1m at 13.50g/t gold
• 1m at 10.90g/t gold from 11m
• 13m at 2.33g/t gold from surface
• 18m at 1.42g/t gold from 4m
• 16m at 1.78g/t gold from 7m

GoldArc Managing Director Paul Stephen described the 106g/t gold result as “exceptional”, saying it confirmed the presence of very high-grade gold shoots within the Mt Stirling system. He said the broader consistency of the mineralised envelope across the northern, central and eastern sectors was important for mine planning.

Why it matters: Grade control drilling is a key step in moving a deposit toward potential mining because it provides closer-spaced data to help define ore grades, ore boundaries and production scheduling. At Mt Stirling, the program is designed to support mine planning ahead of potential open-pit development.

The broader 34,000m grade control program is fully funded by BML Ventures under a 50/50 net profit share arrangement, while GoldArc retains 100% ownership of Mt Stirling. Around 17,080m has now been completed, representing more than half of the planned program.

GoldArc said the latest batch intersected both high-grade narrow shoots and broader lower-grade envelope mineralisation, both of which are important for future mine plan optimisation. The results are also considered geologically consistent with previous drilling, confirming lateral continuity across the deposit footprint.

The company said further assay batches are in progress and will be released progressively after QAQC validation and geological review.

GoldArc is a Western Australian-focused exploration company with gold projects in the Leonora and Kookynie districts of the Eastern Goldfields. The company reports a total JORC Mineral Resource base of approximately 200,014 ounces of gold, including Mt Stirling, Stirling Well, Orion and Sapphire.

For Western Australia’s gold sector, the Mt Stirling results show continued activity around smaller, near-development gold assets where detailed grade control drilling can help turn Resource ounces into practical mining plans.

Source: GoldArc Resources ASX announcement, “Exceptional 106g/t Au Intercept from Fourth Round of Grade Control Results at Mt Stirling”, 28 May 2026.