PPC is considering Darryll Castle as one of three candidates to become CEO of South Africa's biggest cement maker, a person familiar with the matter told Bloomberg.

Castle, former chief executive of commodity trader Trafigura's mining division, was appointed as a non-executive director of PPC on 17 October.

PPC is seeking a replacement for Ketso Gordhan, who resigned in September after his attempt to fire chief financial officer Tryphosa Ramano was blocked by fellow directors. A decision on the new chief executive will probably be made by year-end, the source said.