South Africa’s State-owned Industrial Development Corporation has agreed to convert its convertible loan facility to Orion Minerals into equity in the project company developing the Prieska copper-zinc mine in the Northern Cape. The move transforms the IDC from a secured lender into a direct equity partner, simplifying the funding structure for a project that last operated in 1991 and is now targeting first concentrate by the end of the first quarter of 2027.
According to an implementation agreement executed on 31 March 2026, following the original loan facility agreement dated February 2023, the IDC will acquire approximately 23.8% of PCZM HoldCo, an effective interest of 16.7% in the Prieska Copper Zinc Mine itself. The State-owned lender will also retain a shareholder loan of R272.4 million. Orion chief executive Tony Lennox said the conversion marked an important milestone, adding that the company would now focus on completing the remaining conditions precedent to the Glencore financing and offtake agreements.
The Prieska project has a mining resource of 31 million tonnes at 1.2% copper and 3.6% zinc. A binding prepayment agreement with a wholly-owned subsidiary of Glencore provides a US$250 million facility linked to the sale of bulk copper and zinc concentrates from the mine. The facility is structured in two tranches: US$40 million to fund the Uppers development and US$210 million to fund the Deeps development. Glencore’s copper marketing division has described the project as an opportunity to participate in the restart of copper mining in the Northern Cape.
IDC executive for industry planning and project development, Rian Coetzee, explained that the equity participation aligned with the corporation’s mandate to support strategically important, commercially sustainable projects that advance industrial development and long-term economic value. He noted that the investment reflected confidence in the project’s fundamentals and its contribution to regional economic development, including job creation and supply-chain stimulation. The conversion also removes the IDC from its role as a secured lender, streamlining security arrangements for Glencore and royalty financing firm Triple Flag Precious Metals.
The Northern Cape has emerged as a focal point for mining investment. Minerals Council South Africa acting chief economist Bongani Motsa recently emphasised the province’s mineral richness ahead of the Northern Cape Investment and Jobs Conference 2026, scheduled for Kimberley from 13 to 15 April. Northern Cape Premier Dr Zamani Saul has described mining as one of six critical pillars of the province’s industrialisation strategy, alongside infrastructure development and transport corridors. Saul has invited investors to reimagine the Northern Cape as a future-facing, globally competitive industrial hub, pointing to the province’s globally significant deposits of copper and zinc amid rising global demand for these minerals.
Orion also holds the Okiep copper project in the Northern Cape, in which the IDC already has a 43.75% shareholding. The company reported on 19 March that it had finalised the settlement of the remaining R14.74 million consideration for acquiring a controlling interest in Okiep, comprising R2.3 million in cash and R12.44 million in shares. Orion entered into definitive agreements in 2021 to acquire the mineral rights from Southern African Tantalum Mining, Nababeep Copper Company and Bulletrap Copper.