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Dateline Resources identifies underground gold potential upside at Colosseum

ASX News, Materials
ASX:DTR      MCAP $756.6M
15 May 2026 14:28 (AEST)

Dateline continues to uncover upside at the Colosseum project.

Dateline Resources (ASX: DTR) has uncovered two new broad gold intersections from drill testing of the northeast extension at the North Pit at the Colosseum project in California.

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A recently completed Colosseum bankable feasibility study (BFS) returned strong economics including US$1.08 billion in un-discounted pre-tax free cashflow, with 75,000 ounce average annual gold production of over first six years.

Recent drilling has now expanded the footprint at Colosseum.

Drillhole CM26-42 has extended the mineralised zone further to the north and at depth, while drillhole CM25-41 increased the mineralised zone by a further 140m downhole.

“Gold mineralisation at the Colosseum North Pit continues to extend to the northeast and these latest drill intersections again highlight the robust nature of the deposit,” MD, Stephen Baghdadi, said.

“These broad gold intersections highlight the potential for the definition of an underground deposit at Colosseum that could be exploited following the completion of open pit mining.

“Based on the positive indications so far, the rare earth drilling program has now been expanded to 18 holes. The high-density rocks are an encouraging indicator that we are on the right track.”

The company’s drilling in late 2025 identified a zone in the North Pit at Colosseum demonstrating broad zones of consistent gold mineralisation.

Mr Baghdadi said the recent drill intercepts continue to support the potential for an underground target to the northeast of the North Pit at Colosseum.

Mineralisation remains open and will be tested further over the coming months.

DTR is up 8.75% to 21.8¢. Mkt cap $756.6M.

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