Robex is a junior Canadian mining exploration & development company with nine permits located in Mali, western Africa. Mali is currently Africa’s third most important gold producing country. Three of Robex’s permit are situated in southern Mali (Mininko, Kamasso and N’Golopene) while the six others are located in the western area of the country (Diangounte, Sanoula, Kolomba, Moussala, Wili-Wili and Wili-Wili west). Robex is presently working towards developing its permits which indicate favourable geology with ore potential.
The priority permits for Robex are Wili-Wili, Wili-Wili west, as well as Mininko. The latter is host to a potential of an inferred resource of 760,000 ounces of gold with an average grade of 1.0 g/t in accordance with the Canadian standard 43-101 ( see rapport ). Robex is presently completing the Nampala prefeasibility study with the intent of installing a gravimetric mill with a daily capacity of 2,000 tons of ore mineral within the Saprolite.
This past October, the engineering-consulting firm GENIVAR, of Québec, reviewed and consequently assessed the three-dimensional resource block-model on the mineralisation of the Nampala deposit. Initially, the three-dimensional resource block-model was completed in the framework of the gold resource estimate (NI 43-101 compliant) completed by the Australian consultant firm RSG Global (now Coffey Mining) completed in 2007. The plan and section review completed by Genivar provided a better understanding of the anticipated gold distribution within the Nampala deposit. With the information available to date, the 200 and 300 lenses situated in the central and western portion of the site indicate that inferred resources are estimated to be at 15,000 ounces of gold for Lens 200 and 71,000 ounces of gold for the Lens 300. The concentration and distribution within these two bodies represents, at present, a marginal economical potential which will be further investigated at a later stage. However, according to the block-model, Lens 100 developed along the eastern flank of the Nampala zone is host to an inferred resource of 675,000 ounces of gold contained within 14,130 Mt of ore at an average grade of 0.93 g/t Au. These resources are located between the surface and the explored depth of 150 meters. In accordance with NI 43-101 standards, the above findings are based on insufficient exploration to define a mineral resource, and as such, it is uncertain if further exploration will result in discovery of a mineral resource.
In light of the above, the current objective pursued by Robex aims at upgrading the gold resources outlined within the oxidised and altered layers, developed within Lens 100, between surface and vertical depth of 85 m. This portion of the Lens has the potential to contain 8,404 Mt of ore at an average grade of 0.95 g/t Au, for a presumed total of 256,000 ounces of gold. With the intent of enhancing the quality of this resource, Robex has undertaken a drilling campaign in reverse circulation (RC) with the purpose of achieving a 25 m drilling center pattern. The results of this campaign should allow for a reclassification of part of the inferred resources into indicated and measured resources. The campaign which was started in mid-November 2009 will comprise between 7,500 and 8,500 meters of RC drilling distributed in 100 to 120 holes. The drilling will be executed by COREPRO, a drilling contractor based in Ouagadougou, Burkina Faso.
The outcome of the results of the above drilling campaign and the related metallurgic tests will be decisive in order to determine the optimum extraction process for the gold contained within the oxidised layer of Lens 100. Concurrently, a cost analysis of an eventual mine will be undertaken.
We are hopeful that this latest drilling campaign along with the results of the related metallurgic tests will yield the necessary findings in order for Robex to proceed with the feasibility study and onwards to opening a mill.
Robex is listed at the Toronto Venture TSX-V: RBX and the Frankfurt exchange (Deutsche Borse AG) RB4.
