Kobus Keulder has resigned from his role as cfo of United Manganese of Kalahari (UMK) and will join rival South African manganese ore producer Tshipi.

Keulder joined UMK in 2009 and previously worked for Transalloys and Highveld Vanadium & Steel.

He will leave UMK on September 11.

A successor has not yet been named.

UMK and Tshipi are two of the newer generation of South African manganese ore producers. They started mining in 2008 and 2012, respectively.

Janie Davies 
Twitter: @janiedavies_mb