Overview

Mine Type	Open Pit
Stage	Permitting
Commodities	Uranium
Mining Method	Truck & Shovel / Loader
Mine Life	...
Snapshot	Mulga Rock is an advanced Project with a revised DFS underway, to optimise project parameters to include base metal recovery optimisation work, detailed resource definition drilling and mining studies. Mulga Rock is one of only four projects in Western Australia to receive State Ministerial approval to progress with the mining of uranium and it is currently the only one of those four likely to be developed in the near future. In December 2021, the Western Australian Department of Water and Environment Regulation provided formal confirmation that “substantial commencement” had been achieved. This notification, together with several approvals and confirmations received in the preceding months, allows the Mulga Rock Project to advance to the next stage of development.

Deposit type

• Sediment-hosted

Summary:

The project consists of two separate mining areas over a total length of 30km with the individual deposits ranging in length from 1km to 8km. The Mulga Rock East mining centre comprises the Ambassador and Princess deposits and the Mulga Rock West mining centre comprises the Shogun and Emperor deposits.

The MRP is classed as a carbonaceous-sedimentary hosted, supergene enriched, uranium deposit. Mineralisation is hosted predominantly by unconsolidated Eocene sediments (39 Ma) which are rich in organic matter and comprise river and estuarinelake sediments. The organic matter originated primarily from land-based plant matter that washed into the channels and deposited into tributaries along the edge of an oxbow bend, forming peat.

The uranium mineralisation is hosted by the organic matter in the reduced sediments below the redox front. Most of the uranium is adsorbed onto organic matter in an ionic form (i.e. uranium metal). The remainder of the mineralisation comprises ultra-fine grained uraninite (UO2) and mixed uranium oxides. The individual uranium-rich units consist of stacked lenses that have strong lateral continuity, and are spatially associated with the redox front that coincides with the present-day water table.

Uranium mineralisation is hosted by flat-lying, carbonaceous clastic sediments which are in turn overlain by weathered, oxidised sediments that range in thickness from 19m to 62m of waste overburden.

Most of the uranium is contained in the top mineralised lens. The ore zones are up to 38m thick, inclusive of interburden, with Ambassador and Princess deposits averaging 4.5m in thickness, and up to 8m in thickness at Shogun and Emperor with an average of 2.3m.

Ambassador and Princess mineralisation is strongly polymetallic in nature, with the majority of base and other metals adsorbed on to organic matter, with sulphides and sulphates accounting for the remainder. None of the other metals occur in a form or concentration which allows for eventual economic extraction and are therefore not reported as a Mineral Resource under the JORC Code (2012).

Mining Methods

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Comminution

Crushers and Mills

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Processing

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Production

Operational metrics

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Personnel

Job Title	Name	Profile	Ref. Date
.......................	.......................		Jan 8, 2024
.......................	.......................		Jan 8, 2024

Total Workforce	Year
......	2018