Diamond Drilling Confirms 2414.5 g/t Silver Equivalent at Orient Project

Iltani Resources has reported robust assay results from diamond drilling at its Orient Silver-Indium Project, underpinning a significant bulk sample dispatch for metallurgical testing expected to complete by mid-2026.

  • Strong assay results from diamond drill holes ORD006 and ORD007
  • High-grade silver equivalent intersections up to 2414.5 g/t Ag Eq.
  • 240kg bulk sample sent for metallurgical test work at Core Resources
  • Drill results closely match previous RC drilling, validating resource confidence
  • JORC resource estimate totals 34.2Mt at 110 g/t Ag Eq. with ongoing exploration targets
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Robust Assay Results from Diamond Drilling

Iltani Resources Limited (ASX, ILT) has released assay results from two diamond drill holes, ORD006 and ORD007, at its Orient Silver-Indium Project in North Queensland. These holes were strategically drilled to obtain representative samples for metallurgical test work, a critical step towards advancing the project’s development.

The results reveal substantial mineralisation, with ORD006 intersecting 35 metres at 98.1 grams per tonne (g/t) silver equivalent (Ag Eq.) from 80 metres downhole, including high-grade zones such as 4.2 metres at 278.5 g/t Ag Eq. and a remarkable 0.4 metres at 1126.2 g/t Ag Eq. ORD007 delivered even higher grades, intersecting 27 metres at 225.2 g/t Ag Eq. from 77 metres, highlighted by 1.5 metres at an extraordinary 2414.5 g/t Ag Eq.

Metallurgical Test Work Underway

To further evaluate the economic potential of the mineralisation, Iltani has dispatched a 240-kilogram bulk sample, equally split between Orient East and West, to Core Resources in Brisbane for metallurgical testing. This program aims to assess recoveries and concentrate qualities, with results anticipated by mid-2026. Successful metallurgical outcomes will be pivotal in confirming the project’s viability and guiding future development decisions.

Validation of Previous Drilling and Resource Confidence

The diamond drill holes were designed to twin prior reverse circulation (RC) drill holes, and the close alignment of assay results between the two methods provides a strong validation of the existing resource model. For instance, ORD006’s 35m at 98.1 g/t Ag Eq. closely matches the RC hole ORR071’s 37m at 109.7 g/t Ag Eq., while ORD007’s 27m at 225.2 g/t Ag Eq. compares well with ORR102’s 29m at 150.0 g/t Ag Eq. This consistency bolsters confidence in the resource estimates and supports plans for expanded RC drilling in 2026.

Project Scale and Exploration Potential

The Orient Silver-Indium Project is Australia’s largest known silver-indium deposit, with a current JORC Mineral Resource Estimate of 34.2 million tonnes at 110 g/t Ag Eq. The project is part of Iltani’s broader Herberton portfolio, which covers a highly prospective mineral field with a rich mining history. Beyond the defined resource, Iltani has outlined exploration targets ranging from 15.4 to 18.8 million tonnes at 95 to 117 g/t Ag Eq., indicating significant upside potential. Planned infill drilling over the next 6 to 12 months aims to convert these targets into formal resources.

Strategic Backing and Forward Outlook

Backing from the Queensland Investment Corporation, which recently invested $8 million, underscores the strategic importance of the Orient Project. Iltani’s Managing Director Donald Garner emphasized the importance of the assay results and the metallurgical program as foundational steps towards production. The company’s focus remains on expanding the resource base and advancing metallurgical understanding to unlock the project’s full value.

Bottom Line?

Iltani’s assay results and metallurgical testing mark a key milestone, but the market will watch closely for test outcomes and resource expansions in 2026.

Questions in the middle?

  • Will metallurgical test work confirm high recoveries and payable metals for silver, indium, lead, and zinc?
  • How will the inclusion or exclusion of antimony and tin in metal equivalents affect project economics?
  • What impact will the planned 2026 RC drilling have on resource size and grade confidence?