Rising PGM prices are rebuilding producer balance sheets as delayed foreign currency settlements remove investment capital from Zimbabwe’s mines

• Unki generated R2.4 billion (US$146.0 million) in sustaining economic free cash flow during the first half of 2026 while carrying a US$114 million receivable from Zimbabwe’s monetary and fiscal authorities

• Valterra Platinum has improved settlement of current export proceeds through tax offsets and partial Reserve Bank payments while more than US$100 million accumulated in previous years remains unresolved

• Higher PGM prices increase Zimbabwe’s export earnings and enlarge the local currency obligation created by the compulsory conversion of 30% of mining proceeds

Zimbabwe’s platinum industry has entered its strongest cash generation window in years while part of the capital required to sustain output, replace equipment and approve expansion remains locked in unpaid foreign currency conversion balances.

Valterra Platinum’s realised dollar PGM basket price increased by 85% to US$2,801 per ounce during the six months to June 2026. Higher prices and an 18% increase in sales volumes lifted adjusted EBITDA more than fourfold to R33.4 billion (US$2.03 billion) and generated R25.5 billion (US$1.55 billion) in free cash flow. Headline earnings rose to R21.5 billion (US$1.31 billion) and the group declared R15.1 billion (US$918.5 million) in interim dividends.

Unki participated fully in that recovery. The Zimbabwean operation recorded a 75% increase in its realised dollar PGM basket price, lifting EBITDA by 315% to R2.9 billion (US$176.4 million) and expanding its mining EBITDA margin from 23% to 54%. Sustaining economic free cash flow rose from R71 million (US$4.3 million) to R2.4 billion (US$146.0 million) while all in sustaining cost declined by 27% to US$748 per 3E ounce sold.

The same results disclosed the constraint now carrying greater significance for Zimbabwe than the earnings increase. Valterra reported a R1.9 billion (US$115.6 million) receivable, reported in the company’s accounts as the equivalent of US$114 million, from the Reserve Bank of Zimbabwe and the Ministry of Finance at 30 June 2026. The balance arose from the conversion of 30% of Unki’s export proceeds into local currency under Zimbabwe’s foreign currency retention framework.

The receivable declined from US$123 million at the end of December 2025 following partial recoveries during the reporting period. It remained more than twice the US$46 million carried in June 2025, confirming that recent payments have slowed the accumulation without clearing the historic exposure.

Valterra chief financial officer Sayurie Naidoo said the group was recovering a greater share of current export proceeds through tax offsets and Reserve Bank payments. Zimbabwe owed the company about US$120 million during 2025 and approximately US$10 million had been paid. A further US$10 million relating to current proceeds was expected, while management had secured no sustainable solution for more than US$100 million accumulated in previous years.

The position places Zimbabwe at risk of receiving the fiscal and foreign exchange benefits of a recovering PGM market faster than its settlement system returns the corresponding local currency value to producers.

The timing increases the economic cost. Platinum producers spent the previous stage of the cycle restructuring operations, reducing expenditure and protecting liquidity as weaker PGM prices compressed margins. The 2026 recovery has restored the capacity to rebuild balance sheets, accelerate mine development and approve projects whose returns were previously insufficient.

Valterra’s group mining EBITDA margin increased from 22% to 50% during the first half. Gross profit on metal sales rose from R5.1 billion (US$310.2 million) to R30.9 billion (US$1.88 billion). Return on capital employed increased from 6% to 69%. Net cash reached R23.7 billion (US$1.44 billion) after the group ended the comparative period with R4.9 billion (US$298.1 million) in net debt.

These figures capture how quickly higher commodity prices can move a producer from capital preservation to capital deployment. Zimbabwe’s foreign exchange framework weakens that transmission at mine level.

The exporter earns foreign currency after carrying the cost of mining, concentration, smelting and delivery. Seventy percent remains available in foreign currency and the remaining 30% is converted into local currency. A receivable arises when the corresponding local currency payment is delayed.

The unpaid balance becomes an involuntary extension of credit to the state.

Mining companies must continue paying employees, local suppliers, taxes, utilities and contractors. They must fund underground development, replace fleet, maintain processing equipment and carry the working capital absorbed between production and metal sales. A delayed conversion settlement removes cash from those activities after the underlying mineral has already been produced and exported.

The accounting treatment can conceal the operating pressure. Revenue and profit may be recognised when the mineral is sold, while capital spending and supplier obligations require accessible cash. A mine can therefore report high EBITDA and strong economic free cash flow while carrying a large claim whose settlement timing remains outside management control.

Unki’s position illustrates the scale of that mismatch. The mine generated R2.4 billion (US$146.0 million) in sustaining economic free cash flow during the period and carried a receivable of almost the same rand value. The amount due from the authorities is therefore comparable with a substantial period of mine generated cash.

The 30% conversion requirement also creates a settlement obligation directly linked to export value. A mine generating US$100 million in qualifying export proceeds requires a US$30 million equivalent local currency settlement. Higher prices increase the value of the same production volume and enlarge the amount that authorities must provide.

Valterra received US$2,801 per PGM ounce sold during the first half compared with US$1,517 in the corresponding period. Platinum prices received by the company increased by 106%, rhodium by 94% and ruthenium by 167%.

Every higher valued ounce therefore expands Zimbabwe’s export receipts and the value subjected to compulsory conversion.

The settlement mechanism becomes harder to fund during the part of the commodity cycle when mining receipts are strongest. A system that created limited pressure at lower prices can accumulate arrears more rapidly as commodity values recover.

Zimbabwe gains stronger export inflows and greater tax capacity at the same point when mining companies require additional liquidity for fleet renewal, underground development, power investment, exploration and processing upgrades. Delayed settlement converts part of that opportunity into a balance sheet claim.

Unki’s operating position raises the importance of accessible capital. Metal in concentrate production declined by 4% to 103,500 ounces during the first half after the mine moved into lower grade sections of the orebody. Tonnes milled declined by 1% as the concentrator operated at nameplate capacity and throughput was managed to preserve recovery from lower grade feed.

Valterra revised Unki’s full year production guidance to between 200,000 and 220,000 PGM ounces following geotechnical challenges in a higher grade mining area. Mining was redirected to a lower grade section. Planned tonnage remained unchanged and expected metal output declined because the available ore carried fewer ounces per tonne.

US dollar operating costs rose by 14% to US$136 million, including US$4 million linked to Middle East conflict related cost pressures and further increases from mining activity and general input inflation. Unit cost increased by 6% to R21,545 (US$1,310.52) per PGM ounce as lower output spread costs across fewer ounces.

The mine enters the second half with strong margins and a growing requirement to manage grade, geotechnical conditions and cost inflation. Investment in ground control, mine development, equipment reliability and processing performance will determine how effectively Unki protects output from lower grade areas.

The US$114 million receivable is directly relevant to that production resilience because it represents capital that could support the physical systems required to sustain future ounces.

The investment effect extends across the platinum sector. Mining projects are assessed through commodity prices, operating costs, taxes, capital intensity, financing costs and the certainty that generated cash will remain available for debt service and reinvestment. Delayed conversion settlement adds a further cost through the amount of working capital that may remain outstanding and the period required to recover it.

Investors can accommodate compulsory retention where conversion is immediate, predictable and value preserving. An unpaid balance whose recovery depends on recurring negotiation carries sovereign credit risk.

That risk feeds into higher lending margins, stronger security requirements, elevated project hurdle rates and slower capital deployment. Boards may divide large developments into smaller phases. Producers may prioritise maintenance capital over expansion. Regional groups may direct discretionary investment toward jurisdictions where cash conversion and repatriation carry greater certainty.

The issue therefore extends beyond Unki and into Zimbabwe’s next generation of platinum investment.

Karo Platinum remains a capital intensive development whose investors must fund mine construction, waste removal, processing infrastructure and working capital before saleable metal begins generating operating cash. Future returns will depend partly on whether those export receipts remain accessible once production begins.

Unki’s experience becomes a jurisdictional reference point even where individual projects operate under negotiated investment agreements.

The issue also affects established producers with large local capital programmes. Zimplats continues to invest in mine replacement, expanded smelting, power infrastructure and processing capacity. Mimosa must sustain underground and plant performance across a mature operation. Each producer depends on predictable access to export generated cash.

The cost of the retention system therefore enters the hurdle rate applied to every future dollar of platinum capital.

Mining companies had already raised concerns over the effective value of the 70% foreign currency retention threshold before the current PGM recovery. The Reserve Bank’s 2026 to 2030 strategy review records industry concerns that exchange losses and foreign currency requirements for electricity, labour and other domestic costs had reduced the effective retention rate to around 50%, leading mining houses to seek a threshold closer to 85%.

The current receivable problem deepens that concern. A stated 70% foreign currency retention becomes less meaningful where the 30% local currency component is delayed, restricted or difficult to access.

Valterra’s interim results also disclosed R612 million (US$37.2 million) held by Unki in Zimbabwe Gold that could only be used within Zimbabwe and was unavailable to the wider group. The company had previously reclassified balances held in a deferred liquidation account from cash equivalents to receivables after experiencing difficulty accessing the funds on demand.

This reduces treasury flexibility even where the amounts retain nominal value. Mining groups allocate cash across debt service, equipment procurement, contractor payments and project development in multiple jurisdictions. Restricted domestic balances cannot perform the same function as freely accessible cash.

Tax offsets provide a practical route for reducing new balances. A producer can use amounts due from government to settle tax liabilities that would otherwise require a cash payment. This lowers the net exposure and can slow further accumulation.

The mechanism remains dependent on the timing and size of taxable liabilities. The amount owed by the authorities may exceed the taxes available for settlement during a particular period. Recovery through the fiscal calendar also limits management’s discretion over the timing and use of cash.

Partial Reserve Bank payments improve liquidity and provide evidence of current settlement. They remain insufficient where the historic stock exceeds US$100 million and no binding clearance timetable exists.

Valterra has engaged the Reserve Bank, the Ministry of Mines and South African authorities. Management has also referred to work around a possible African Export Import Bank facility. The available disclosures provide no completed structure for clearing the historic balance.

Zimbabwe therefore faces two distinct settlement requirements. Current conversions require matched local currency payment within a defined period. Historic arrears require a funded instrument with a fixed repayment schedule.

A durable current flow mechanism should create an automatic payment instruction each time foreign currency is surrendered. The exporter should receive the corresponding local currency amount without entering a separate negotiation. Reconciliation should occur through a transparent ledger accessible to the producer, the Reserve Bank and the fiscal authorities.

A liquidity facility could fund timing gaps between conversion and government cash availability. The facility would pay the exporter and carry the sovereign exposure under agreed repayment terms, moving settlement risk away from productive mining balance sheets.

Historic arrears require a separate solution through transferable interest bearing securities, a funded repayment schedule supported by identifiable revenue flows or an external facility that settles verified balances. The instrument must preserve value and provide enforceable payment dates.

Tax offsets can remain one settlement option under clear rules and at the exporter’s election.

The objective reaches beyond clearing Valterra’s claim. Zimbabwe’s mining policy seeks production growth, domestic processing, new power infrastructure and deeper mineral value chains. These ambitions require companies to commit capital before production and recover that capital from future exports. Long dated unpaid conversion balances weaken the investment cycle required to deliver those policy goals.

Valterra’s results show that the global PGM market has restored the cash generating capacity of Zimbabwe’s platinum assets. Unki delivered a 54% mining EBITDA margin, generated R2.4 billion (US$146.0 million) in sustaining economic free cash flow and operated at an all in sustaining cost of US$748 per 3E ounce sold.

Zimbabwe’s immediate policy test is whether that value becomes available for the mine’s next development cycle.

Timely settlement of export proceeds will determine how much of the current platinum recovery is converted into equipment, mine development, processing capacity and future production. Continued accumulation will raise the cost of investing in Zimbabwe at the point when stronger PGM prices offer the country its best opportunity in years to attract capital and expand output.

A profitable platinum cycle can strengthen the country’s mining base only where export earnings return to producers as investible cash. Failure to resolve the US$114 million receivable would leave Zimbabwe earning more from each platinum ounce while weakening the capital available to produce the next one.