Review of South African Operations

Kloof Gold Mine

Technical short form report (PDF - 884KB)

		During financial 2010 Kloof produced 566,500 ounces of gold at a cash cost of R187,154 per kilogram (US$768 per ounce) and an NCE of R256,962 per kilogram (US$1,054 per ounce). During the year to June 2011 the outlook for Kloof is to produce between 578,700 and 643,000 ounces of gold at a cash cost of between R180,000 and R195,000 per kilogram and an NCE of between R233,000 and R250,000 per kilogram.
Kloof main shaft complex
PRODUCTION: 17,624 kg (567 000ozs) TOTAL CASH COSTS: R187,154/kg (US$567/oz)

The Kloof Gold Mine, which is located 60 kilometers west of Johannesburg, near Westonaria in the Gauteng province of South Africa, has produced more than 70 million ounces of gold during its 75-year life and was, in its heyday, known as the richest gold mine in the world. While this mine is now in the late summer of its life, it still has a massive 77.9 million ounces of gold Mineral Resources, of which 9.5 million ounces are in Mineral Reserves. A significant opportunity for Kloof is to increase mining flexibility through the development of reserves, and thus extend the life of this mine. Like Driefontein, its neighbouring sister mine, Kloof is a large, well-established intermediate to ultra-deep-level gold mine with its lowest working level some 3,350 meters below surface. Geologically Kloof is located on the main north-western rim of the Witwatersrand Basin and exploits auriferous palaeoplacers (reefs), namely the Ventersdorp Contact Reef (VCR) that constitutes 85 per cent of the underground Mineral Reserve ounces, the Middelvlei Reef (MR), 11 per cent, and two per cent from the Kloof Reef (KR). Kloof consists of five producing shaft systems and two gold plants of which 1 Plant processes surface material while 2 Plant process underground ore.

Gold produced (’000oz)		New ammonia plant cooling towers at Kloof, 3 Shaft		Surface man winder at Kloof, 4 Shaft

* TEC = total employees costed.