COPY OF FINAL PROSPECTUS - Mirabela Nickel
COPY OF FINAL PROSPECTUS - Mirabela Nickel
COPY OF FINAL PROSPECTUS - Mirabela Nickel
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The flotation circuit design is based on the metallurgical testwork that was completed and includes a<br />
conventional rougher/cleaner arrangement. RSG Global has concluded that based on the high quality of the<br />
flotation testwork, there would be a high degree of confidence in the established design parameters and as such<br />
if normal engineering practices are followed, this section of the plant would be capable of achieving the results<br />
observed in the testwork.<br />
The plant design allows for the retro fitting of both a pebble crushing circuit and a regrind circuit if<br />
necessary. In addition, the target plant availability is 91.3% after allowing for interruptions from the state grid<br />
power supply. A water balance was completed by Golders Associates and confirms that there are adequate water<br />
resources available for the proposed 4 million tonnes per annum throughput.<br />
Tailings Storage Facility<br />
The design of the tailings storage facility was completed by independent consultant Golder Associates<br />
Pty Ltd. to a pre-feasibility study. The design concept includes waste rock embankments, a fully HDPE lined<br />
facility, a fixed decant structure, a tailings underdrainage system and a liner underdrainage system.<br />
Capital Cost Estimates<br />
GRD Minproc Limited completed capital cost engineering estimates for the Santa Rita Project with an<br />
accuracy of 30% for a four million tonnes per annum nickel concentrator appropriate for the Santa Rita<br />
resource with the inclusion of an ‘accuracy provision’ of +10% on all cost estimates as a replacement for<br />
contingencies.<br />
The capital cost estimate including processing plant, infrastructure, port facilities, EPCM, commissioning,<br />
first fills and spare parts of US$223 million is considered by RSG Global to be reasonable and is based on<br />
detailed equipment lists and take off quantities with real pricing for major equipment.<br />
A summary of the capital cost estimate with an accuracy of 30% is set out below:<br />
Capital Cost Estimate (30%)<br />
US$<br />
Primary Crushing 22,201,683<br />
Grinding Circuit 38,950,280<br />
Flotation Circuit 11,606,491<br />
Concentrate Thickening & Filtration 3,599,750<br />
Tailings Thickening & Storage 15,583,551<br />
Reagents & Services 23,960,157<br />
Electrical & Instrumentation 40,761,710<br />
Laboratory 2,244,429<br />
Port Facilities 7,915,325<br />
Admin, Access, Workshops, etc. 12,099,058<br />
Mining, Buildings & Workshops 4,779,500<br />
Construction Services 5,282,515<br />
Spares & First Fills 3,132,360<br />
Commissioning 5,302,000<br />
EPCM 25,300,000<br />
Total 222,718,809<br />
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