ARM pulls the trigger: ZAR 15.2bn Bokoni approval and Nkomati restart signal a new growth phase

After years of conservative capital allocation, African Rainbow Minerals commits to major PGM and nickel expansion while delivering a 19% headline earnings lift.

ARI.JO · Earnings Call · 2026-09-04

Results that finally put cash to work

African Rainbow Minerals’ (ARM) full-year results delivered the usual resilient earnings story, but the real news lies in what management did with its balance sheet. The company closed the year with its strongest net cash position in recent history, and — more importantly — it has now greenlit two long-discussed growth projects that had lingered in feasibility limbo. The market’s response will likely hinge on whether these approvals mark the start of a disciplined, value-accretive capital program or risk repeating past underperformance. Headline earnings rose 19% to ZAR 3.2 billion, and headline earnings per share improved 20% to ZAR 16.60. “Improved earnings once again demonstrate the value and the resilience of a diversified portfolio in a highly volatile market.” — Phillip Tobias, Executive Management · 2026-09-04 The recovery was led by the PGM division, with ARM Platinum headline earnings up 204% on firmer basket prices. However, the strong rand and weaker commodity prices dragged on the ferrous and coal divisions, which reported declines or losses. Net cash improved 54% to ZAR 10.2 billion, giving the company ample firepower. The group also achieved its first fatality-free year since 2017, a major safety milestone.

The strategic pivot: from waiting to building

What sets this reporting period apart is the board’s decision to approve two major organic growth projects. The first is the ambitious Bokoni platinum mine expansion: a phased 180 ktpm development with a ZAR 15.2 billion capital budget, expected NPV of ZAR 5.9 billion and an IRR of 28%.

ZAR 15 billion is a substantial amount of capital, and that is certainly not an investment that the board has taken lightly.
Jacques van der Bijl, Operational Management · 2026-09-04

Jacques van der Bijl, in charge of the project, emphasized the quality of the UG2 reserve and its position on the global cost curve – a crucial hedge against PGM price volatility. The second approval authorizes the recommencement of open-pit mining and nickel concentrate production at Nkomati, with low start-up capital (ZAR 1.9 billion) and a quick payback, leveraging existing infrastructure. This re-establishes South Africa’s only primary nickel producer and fulfills a condition of the Boliden offtake agreement. These decisions are a direct answer to ongoing investor criticism. In the prior earnings call, Andrew Snowdowne of Ninety One called the company’s balance sheet a “lazy balance sheet”: “18% of your market cap is now sitting in cash... there doesn't seem to be any real initiative by management to try and unlock any of that value.” — Andrew Snowdowne, Analyst · 2026-03-06 Management had previously defended its patience, stating that “we're making a very prudent decision in terms of which project will start first” — Unknown Executive, Management · 2026-03-06. Now, with studies complete and feasibility confirmed, they are finally moving forward.

Capital allocation discipline remains priority

Importantly, the projects are deliberately phased to avoid straining the balance sheet. Bokoni’s peak funding is ZAR 10.2 billion, not the full ZAR 15.2 billion, because the project generates its own cash during ramp-up. Nkomati’s funding is minimal, and management expects it to be self-sustaining quickly. While the company is also advancing its 19.9% stake in Surge Copper – a potential future copper-molybdenum mine – that capital outlay is not expected until FY2030-31, after Bokoni and Nkomati are cash-generative. The company’s strategy also underscores its commitment to competitive shareholder returns. Dividends from Harmony rose 113% to ZAR 512 million, and ARM raised its stake in Surge to 19.9%. The final dividend was maintained at ZAR 7 per share.

Why this matters

For years, ARM has traded at a conglomerate discount, with investors valuing its Harmony stake, Assmang interest and net cash at more than 90% of market capitalization, effectively giving little credit to its PGM assets. The board’s decision to approve Bokoni and restart Nkomati is a clear signal that management sees the PGM cycle at a point where new supply is needed. It also demonstrates a willingness to deploy capital internally rather than return it via buybacks – a shift from the prior defensive posture. Execution risk is real: ARM’s PGM operations have historically struggled with geological challenges and cost overruns. But the staged, brownfield approach and the company’s fatality-free safety record suggest an improved operational footing. The expanded capacity positions ARM to benefit from the long-term demand for platinum group metals in catalytic converters and emerging hydrogen applications. If these projects deliver on their stated returns, ARM could finally unlock value in its undervalued PGM division. If not, the massive capital outlay will only deepen the discount. Today’s announcements, however, mark a definitive move from analysis to action – and that is what investors have been waiting to see.