Amplats announced it would be selling off the mines earlier this year after 3 years of unstable growth.
Anglo American has spoken out against the minerals act currently before President Zuma.
The company is struggling to implement a new strategy of selling directly to end-users.
Johan Lesley Viljoen has been hired as chief operating officer as part of an executive reshuffle.
Production of iron ore rose 5 percent to 22.8 million tonnes for the six months ended 30 June.
But the group's platinum output slumped, hit by a strike at its South African operations.