Mount Ridley Mines (ASX:MRD) commences re-assay program across Grass Patch Complex

Mount Ridley Mines has announced the commencement of a strategic multi-element re-assay program across the Grass Patch Complex, with approximately 3,300 historical drill pulps submitted to ALS Limited’s Perth laboratory for re-assay.

Highlights

• Approximately 3,300 historical drill pulps submitted to ALS Limited’s Perth laboratory for re-assay.
• Program targeting 134 historical diamond and aircore drillholes.
• Approximately 17,000 pulps identified as not previously assayed for scandium.
• Re-assay program designed to support resource growth and classification upgrades across HREE, scandium and gallium.
• Results to be integrated into ongoing geological and resource modelling.

The announcement states that the samples were selectively prioritised following a comprehensive sample inventory and data consolidation program, which integrated multiple historical drilling campaigns into a unified dataset for the first time.

It states that this process identified approximately 17,000 pulps not previously assayed for scandium, forming the basis for a significant re-assay opportunity.

The initial batch was selected following a detailed review of the consolidated sample inventory, with priority given to pulps where gaps exist in the historical assay suite, and the announcement states that this approach is designed to systematically expand the multi-element dataset across the project.

In addition to scandium, the program is expected to enhance data coverage for heavy rare earth and gallium mineralisation and may support future improvements in resource definition and classification.

Advances in analytical techniques and detection limits since the original assaying were completed may also provide more complete multi-element datasets.

The announcement states that the program provides a low cost and time efficient pathway to unlock additional value from the Company’s existing drilling database, without the need for immediate new drilling.

It states that re-assay results will be integrated into ongoing geological and resource modelling, targeting increases in both the scale and confidence of the Mineral Resource at Mount Ridley.

Mount Ridley Managing Director and CEO Allister Caird said,

“This program represents a fantastic opportunity to unlock additional value from our extensive historical sample inventory in a low cost and time efficient manner. The identification of a large volume of unassayed pulps provides a clear pathway to potentially expand and upgrade the Mineral Resource across our high value asset base at Mount Ridley.”

The announcement states that the Mount Ridley Project is located approximately 25 kilometres north of the deep water port of Esperance and hosts defined heavy rare earth element, scandium and gallium resources identified through 70 000 metres of historical drilling.

It also states that multiple high priority walk up drill targets have been identified through historical drilling, geophysics and recent technical reviews, and that these targets are currently being assessed and prioritised with the intention of supporting future drilling programs planned for 2026.

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