Modern Mining October 2018

PLATINUM

permanent hoisting facilities and support the shaft collar. Shaft 2, to be located approximately 100 m north-east of Shaft 1, will have an internal diameter of 10 m, will be lined with concrete and sunk to a planned, final depth of 1 104 m below surface. It will be equipped with two 40-tonne rock-hoisting skips. The headgear for the permanent hoisting facility has been designed by Murray & Roberts Cementation. Platreef’s development team has decided to unbundle the complete Shaft 2 sinking contract into smaller commitment portions, while still maintaining the critical development path. Given the size and potential of the Platreef mineral resource, Shaft 2 has been engineered with a crushing and hoisting capacity of 6 Mt/a – representing the single largest hoist- ing capacity at any mine in Africa. This allows for a relatively quick and capital-efficient first expansion of the project to 6 Mt/a by increasing underground development and commissioning of a third, 2 Mt/a processing module and asso- ciated surface infrastructure as required. A further expansion to more than 8 Mt/a would entail converting Shaft 1 from a

ventilation shaft into a hoisting/ventilation shaft. This would require additional ventilation exhaust raises, as well as a further increase of underground development, commissioning of a fourth, 2 Mt/a processing module and associ- ated surface infrastructure, as described in the PEA as Phase 2 of the project. Photos courtesy of Ivanhoe

Schematic of the planned Platreef mine site, showing first phase infrastructure and surrounding host communities.

October 2018  MODERN MINING  29