The Two Rivers Platinum Mine (TRP) comprises of both the Merensky and the underlying Upper Group 2 Reefs (UG2). The UG2 outcrops in the Klein Dwarsrivier valley over a north-south strike length of 7.5km and dips to the west at approximately 7 to 10 degrees.

TRP is exploiting platinum group metals (PGMs) and associated by-products comprising chromite and base metals (Cu, Ni and Co) which are hosted in the UG2 and Merensky reefs of the Bushveld Complex. The Bushveld Complex is the largest layered igneous complex in the world, hosting approximately 85% of known global platinum group metals resources.

Layered accumulations of mafic and ultramafic lithologies in the Bushveld Complex are collectively referred to as the Rustenburg Layered Suite (RLS). The stratigraphy of the RLS is broadly sub-divided into five zones namely (from bottom to top) the marginal zone, the lower zone, the critical zone, the main zone and the upper zone. The critical zone is of economic significance to Two Rivers Platinum Mine because it is the host of economically viable reefs – the UG2 and Merensky reefs. The critical zone is further subdivided into lower and upper critical zones. Both UG2 and Merensky reefs occur in the upper critical zone.

The geological succession at Two Rivers Platinum Mine is broadly similar to that encountered on the other operations in the southern portion of the eastern limb of the Bushveld Complex. An exception is the occurrence of the Steelpoort ........

The Two Rivers Platinum (TRP) is an existing mine conducting underground mining activities on the farm Dwarsrivier 372 KT on the southern part of the eastern limb of the Bushveld Complex. The site comprises of both the Merensky and the underlying Upper Group 2 Reefs (UG2). The vertical separation between the Merensky and UG2 Reefs is around 140m to 160m. Due to the extremity of the topography, the Merensky reef outcrops further up the mountain slope and also results in the UG2 occurring at a depth of 935m below surface on the western boundary of the mine.

TRP holds an existing authorisation for the expansion of its operations for the Merensky Main and North Declines. The authorisation authorises the expansion of the current underground mining operations to mine additional areas of the UG2 reef, the development of declines (the Main and North declines) to extract ore from the overlying Merensky reefs. Mining the Merensky Reef commenced as planned in 2022. The mining method will be based on fully mechanised bord and pillar mining.

Upper Group 2 Reefs
The Two Rivers Platinum mining operation consists of two UG2 decline shaft systems, the main decline, and the north decline, located approximately 2.5 kilometres apart on strike. Both shafts were designed for mechanised bord and pillar mining method. Merensky Reef is also being accessed via a decline shaft system with the mining method being bord and pillar as applied on the UG2 Reef.

The UG2 ........

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