Introduction

Manganese ore is mined in the Black Rock area of the Kalahari, in the Northern Cape Province. The majority of the production is intended for export, but a portion is supplied within the Group to the two smelters: Cato Ridge Works in KwaZulu-Natal, and Machadodorp in Mpumalanga.

Location

Black Rock is approximately 80 kilometers north-west of the town of Kuruman.

History

In 1940, Assmang acquired a manganese ore outcrop on a small hillock known as Black Rock. Several large properties underlain by ore were subsequently found and acquired. Manganese ore mining operations were extended and today include 3 underground mining complexes:
Gloria (commissioned in 1975) and producing medium grade carbonated ore
Nchwaning 2 and Nchwaning 3 (commissioned in 1981 and 2004 respectively) and producing high grade oxide ore.
Today the Kalahari Basin is considered to be the largest and richest manganese deposit in the world.

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