SRK Mining wants to prospect for diamonds and Nekwana Trading Enterprise wants to prospect for heavy minerals, kaolin and gemstones
The African Mining Indaba will look at ways to boost investor confidence through a stable regulatory environment and mining policies aligned with environmental, social and governance factors
The reasons include faulty sewerage plants, rogue mines and weak monitoring agencies.
The Olifants catchment is so badly managed that mines, farms and wastewater treatment plants are polluting it almost unchecked.
Mining has been blamed for the death of more than 50 crocodiles along the Olifants River in Kruger National Park in the past month.