Harmony has operations in Papua New Guinea (PNG) and .
southeast plunging West Rand syncline. At Doornkop mine, both the Kimberley Reef and South Reef are exploited. The Doornkop shaft lease area is bounded by and lies to the southeast of the major northeasterly striking Roodepoort fault, which dips to the south and constitutes the southern edge of the Witpoortjie Horst block or gap. This Horst ...