In a bold move signaling renewed confidence in South Africa’s mining future, Tharisa Plc has announced a $547 million investment to convert its open-pit platinum and chrome mine into a full-scale underground operation.
The shift, to be rolled out over the next 10 years, aims to unlock deeper, richer deposits beneath the company’s flagship Tharisa Mine located near Marikana in North West Province.
A Strategic Pivot
For years, Tharisa has operated one of the country’s most productive open-pit platinum group metal (PGM) and chrome mines. But with surface-level resources gradually depleting, the company faced a crossroads — scale down operations or dig deeper. The management chose the latter, unveiling plans to begin underground shaft construction by Q2 2026.
CEO Phoevos Pouroulis described the project as a “once-in-a-generation transition” that will secure jobs, enhance long-term sustainability, and position Tharisa as a global leader in responsible mining.
“Going underground isn’t just about accessing new ore,” Pouroulis said. “It’s about future-proofing the business and ensuring that South African mining remains globally competitive.”
Economic and Social Ripples
The expansion is expected to sustain thousands of jobs and potentially create new ones as underground infrastructure and technology roll out. Analysts also note the move’s significance for South Africa’s PGM exports, a vital source of foreign revenue.
The underground operation is projected to deliver 200,000 ounces of PGMs annually, alongside 2 million tons of chrome — outputs that could help offset the recent slump in global metal prices.
Environmental impact assessments are already underway, and Tharisa has pledged to align with ESG (Environmental, Social, and Governance) best practices, including modernized ventilation systems, reduced emissions, and enhanced safety technology for underground workers.
Industry Implications
The mining sector has faced mounting challenges — aging mines, unreliable power supply, and pressure to reduce emissions. Tharisa’s investment is thus seen as a vote of confidence in the sector’s resilience.
“This project is exactly what South Africa needs — bold investment and forward thinking,” noted a senior analyst at the Johannesburg Mining Forum. “It signals that, despite challenges, the country’s mineral potential remains world-class.”
For investors, the move is also symbolic. At a time when several global players are retreating from deep mining due to costs, Tharisa is leaning in — betting on innovation, automation, and local expertise to sustain profitability.
A Long Game
The company expects the underground mine to start partial production by 2028, ramping up to full capacity by 2032. If successful, it could extend the mine’s lifespan by at least 15–20 years, securing the future of both Tharisa and the surrounding mining communities.
In a climate of global uncertainty, Tharisa’s bold $547 million bet stands out as a reminder that South African mining, when executed smartly, still has plenty of life left underground.
