SANTA COMBA PROJECT
The project is located 60km from the nearest deep-water port by sealed road and has significant infrastructure already in place, including grid power, a partially completed processing plant, workshops and offices, and a tailings dam. The project enjoys considerable industry support, having received an offer from HC Starck for the offtake of tungsten concentrate, and logistical and offtake support from Transamine Trading, the world’s oldest independent commodity trader.
With the mine fully permitted for underground mining and for the construction of a process plant as well as potential access to open pit resources through the local aggregate quarry operator, the project is well-placed for fast-tracking through to production.
Following the acquisition of GTT in May 2019, Rafaella completed additional drilling at the project which resulted in a significant upgrade to the MRE. The updated MRE is based on 64 diamond drillhole (8,209m; 2,496 samples) and 24 reverse circulation (RC) drillholes (2,908m; 877 samples) and includes the 2016 drilling which consisted of 23 drill holes (2,219m).
The reported in-situ MRE is reported at a cut-off of 0.05% WO3, which corresponds to an APT price of US$240/mtu and US$19,200/t Sn price, along with reasonable assumptions for processing costs, including ROM feed going into an ore sorter.