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The Khuseleka ore replacement project aims to replenish diminishing Merensky Reef output and to supplement existing UG2 Reef output at that shaft by extending the existing decline shaft. The associated project infrastructure includes three ventilation shafts, which were completed in 2010. Merensky Reef development is 99% complete. However, the UG2 Reef development is only 67% complete, against a planned rate of 73% owing to worse than anticipated geological conditions and the doubling of development to allow for ventilation requirements.

The Twickenham project is central to unlocking value for Anglo American Platinum in the Eastern Limb. Major construction work in 2011 included the installation of underground conveyors, chairlifts, surface workshops, and water clarifiers. Rock removal infrastructure has been constructed on level 1. The horizontal development utilising hydro-power equipment will start in the second quarter of 2012. A new, revised investment proposal for mining and infrastructure has been approved after the three year deferral that accompanied recent unfavourable global economic conditions. The complete Twickenham project investment approval is anticipated for the fourth quarter of 2012, and will include a concentrator that is currently at feasibility stage. Development ore is being stockpiled and the concentrator is planned for commissioning in 2016, in line with the project’s production plan. The Twickenham project is planned to reach mining steady state of 3 million tonnes of ore mined per annum in 2019.