Tharisa has secured a binding sales agreement covering half of the platinum-group-metals (PGM) concentrate produced at its South African mine, with Valterra Platinum set to become the buyer under a multi-year contract starting in 2027.
The agreement takes effect, establishing a defined sales route for 50% of the mine’s PGM concentrate output. Northam Platinum will continue purchasing the remaining half, while Valterra replaces Sibanye-Stillwater as the buyer of the contracted share. The deal expands the commercial relationship between Tharisa and Valterra and reduces sales uncertainty for an operating asset. It represents a binding offtake agreement rather than project financing, with no new mine-development funding announced.
Fine-chrome recovery collaboration remains under evaluation
The companies will also examine opportunities to recover additional fine chrome using Tharisa’s Vulcan X technology. The proposed work would assess whether more mineral content can be recovered from material already passing through the processing system, potentially improving resource utilisation.
The collaboration remains at an exploratory stage. No capital commitment or final investment decision has been disclosed for the fine-chrome initiative.
Valterra already has a commercial relationship with Tharisa through concentrate purchases associated with the Karo PGM development in Zimbabwe. Construction at Karo is backed by previously raised secured bond financing. The new South African contract is separate from Karo and covers production from an existing operating mine.
Long-term sales arrangements support PGM supply chains
Platinum-group metals are used in automotive catalysts, chemical production, industrial processes and emerging hydrogen technologies. South Africa dominates global production of several PGM metals, making commercial agreements important to maintaining established supply chains. The contract provides greater certainty over the downstream destination of Tharisa’s existing production but does not add new mining capacity or announce additional project financing.
Further developments could emerge if the Vulcan X collaboration progresses to a formal investment decision or if the companies establish additional commitments for downstream processing.
