The deposits are located within the West Musgrave Province of Western Australia, which is part of an extensive Mesoproterozoic orogenic belt. The Nebo and Babel deposits are hosted in a mafic intrusions of the Giles Complex (1068Ma) that has intruded into amphibolite facies orthogneiss country rock.

Mineralisation is hosted within tubular chonolithic gabbronorite bodies and are expressed primarily as a broad zones of disseminated sulphides and co-magmatic accumulations of, matrix to massive and breccia sulphides.

Mining optimisation was done using Whittle software for each deposit separately before being scheduled manually. It is proposed to mine the Nebo deposit first followed by Babel, with a total mineable resource of circa 150Mt at a nickel grade 0.35% and copper grade of 0.40%.

A feature of the pit optimisation is a very low stripping ratio of 3.2:1 due to relatively flat deposit geometry and thick mineralised zones. Mining is by conventional drill & blast, load and haul, utilising an appropriately sized earthmoving fleet operated by contractors on behalf of Cassini.

An ore processing plant will be built on-site and will comprise conventional crushing, milling and classification circuits followed by two stages of conventional flotation with cleaning and re-cleaning to produce separate nickel and copper concentrates.

The Project is expected to produce significant amounts of nickel and copper with the 10Mtpa case expected to deliver 20-25Kt of nickel in concentrate and 25-30Kt of copper in concentrate per annum over the first eight years.

Due to the high-grade mineralisation being at the top of the deposits, the first three years of operation may produce significantly greater quantities of nickel and copper of 25-30Kt and 35-40Kt in concentrate respectively, assisting rapid payback of capital.