Duketon Mining Limited announced an update to the JORC 2012 Indicated and Inferred Mineral Resource Estimate (MRE) for the C2 Nickel Deposit in the Duketon Belt, 120km north of Laverton. This update is based on additional drilling conducted since the last MRE in 2015 and includes all drilling conducted to date. The Indicated and Inferred Mineral Resource Estimate for C2 is 8.06 million tonnes at 0.57% nickel and is reported in accordance with the 2012 JORC Code.

The resource estimate is reported at >0.4% Ni grade. Previously 100% of the C2 resource was reported as Inferred. Over 99% of the Resource has now been classified as Indicated.

Mineralisation remains open in all directions. The total JORC compliant nickel resource for the Bulge Area (Rosie and C2) now stands at 102,527 tonnes of nickel, 14,163 tonnes of copper and 254,712 ounces of PGEs. The updated C2 Nickel Mineral Resource was estimated by independent consultants from Cube Consulting Pty Ltd. (Cube).

of Laverton in Western Australia. The host unit of the nickel sulphide mineralisation is locally termed the Bulge Ultramafic Complex, this can be traced over 10km of strike and is also host to the Rosie Nickel Sulphide Deposit (2.7Mt @ 2.0% Ni for 56,264 Ni tonnes). The Bulge Ultramafic Complex has been a focus for nickel exploration for several companies over the last ten years, most significantly at the Rosie and C2 prospects by Independence Group NL.

During this time, a JORC 2004 compliant resource of 1.9Mt @ 1.7% Ni (32,700 Ni t), 0.38% Cu and 1.9 g/t Pt + Pd was defined at the Rosie Prospect. Structural thickening is highly likely in the Bulge area due to folding, however the exact relationship to the structure and folding with respect to the mineralisation is currently poorly understood. Mineralisation at the C2 deposit is located at the northern end of the ultramafic host, with the facing direction younging to the southwest.

The ultramafic at C2 strikes to the north-northwest and dips steeply to the northeast. The C2 deposit is a komatiite-hosted nickel sulphide deposit. The mineralisation is characterised by accumulations of disseminated and to a lesser extent massive and matrix Ni-Cu-PGE magmatic sulphides at or close to the basal contact of a komatiite ultramafic rock, overlying a mafic pillow basalt footwall.

This footwall often has fine grained siltstone sediments which also contain sulphides in varying amounts. The deposit has been drilled with a combination of Aircore, RC and Diamond drilling (NQ2) from surface to a vertical depth of approximately 400m over a strike length of 750m. The C2 mineralisation is of medium-high tenor (10-14% Ni in 100% sulphides), with intersections of Ni up to 7.36% in remobilised vein hosted massive sulphides.

It has lesser amounts of Cu at a ratio of 12:1, and minor Pt and Pd credits. The mineralogy of the system appears to be similar to typical Kambalda-style magmatic Ni systems, with pyrrhotite, pentlandite and chalcopyrite as the dominant sulphides in the primary portion of the mineralised zone.