Cameroon has increased its direct ownership of Sonara, the country's national petroleum refining company, from 81.95% to 98.09% through a recapitalisation involving CFA381.12 billion in new shares. The restructuring converts government claims into equity but provides no equivalent new cash to rehabilitate the refinery, which has been unable to resume normal operations since a fire in 2019.

Three other developments show how ownership, acquisition financing, development capital and sales contracts allocate different obligations and risks.

Australian mining company South32 has secured shareholder approval to sell its aluminium operations to US producer Alcoa in a transaction valued at up to US$5.6 billion. The assets include South Africa's Hillside aluminium smelter, alongside operations in Australia and Brazil. Alcoa has completed US$2.6 billion in debt financing, but regulatory approval remains outstanding.

South African merger rules also consider employment and historically disadvantaged and worker ownership. Approval conditions could alter Alcoa's obligations at Hillside.

In Namibia, Australian uranium developer Deep Yellow has withdrawn its fourth-quarter 2026 final investment decision target for the Tumas uranium project, citing difficult equity-market conditions. Early construction works continue, but full development financing remains unresolved.

Its position contrasts with another Namibian uranium developer. Bannerman Energy completed a US$320.4 million investment from China's CNNC Overseas Limited for the Etango uranium project on 24 September. The investor acquired 45% of Etango's holding company, while Bannerman retained its fourth-quarter investment decision target.

Bannerman has secured strategic capital linked to future uranium supply; Deep Yellow has not. Etango still awaits its final investment decision.

In South Africa, platinum and chrome producer Tharisa has signed a binding agreement for Valterra Platinum to purchase half the platinum group metal concentrate produced at its operating Tharisa Mine from January 2027. The contract secures a buyer for defined output without eliminating commodity-price or operating risk.

Sonara requires reconstruction; South32 is transferring producing assets; the Namibian uranium projects are approaching construction decisions; and Tharisa is securing sales for existing production. Sonara has restructured claims without new liquidity. Alcoa has acquisition funding but awaits approval. Bannerman has exchanged ownership and offtake rights for capital. Tharisa has a binding buyer.

The investment consequences will be determined by the obligations that have become enforceable, the risks that remain with existing owners and the capital still required to deliver productive assets.

Cameroon's government has increased its direct ownership of the Société nationale de raffinage, known as Sonara, from 81.95% to 98.09%, following a restructuring of the country's national petroleum refining company.

A notarised notice dated 14 October 2026 in Limbe details capital transactions approved at Sonara's extraordinary general meeting on 17 June, according to reporting by Investir au Cameroun and Business in Cameroon.

Sonara operates Cameroon's principal petroleum refinery at Limbe, which has not resumed normal refining operations since a major fire damaged its facilities in May 2019.

The restructuring changes ownership and liabilities, not rehabilitation funding.

The government now holds 3,154,660 of Sonara's 3,216,058 shares.

TotalEnergies Marketing Afrique, a subsidiary of the French energy group, retains 13,592 shares, but its ownership percentage has fallen from approximately 4% to 0.42%.

Other public shareholders are the National Hydrocarbons Corporation (0.64%), Hydrocarbons Price Stabilisation Fund (0.45%) and National Investment Company (0.40%).

Together, public-sector shareholders account for approximately 99.58% of Sonara's capital.

Cameroon already controlled Sonara. The restructuring involved two capital reductions and a government-only share issue.

Sonara first cancelled 278,777 shares previously held directly by the government, reducing capital by CFA16.03 billion.

The government then subscribed for 6,628,200 new shares at a nominal value of CFA57,500 each, representing CFA381.12 billion. The other shareholders' preferential subscription rights were suppressed.

A second capital reduction cancelled 3,473,540 shares, reducing capital by another CFA199.73 billion.

Consequently, share capital increased from CFA19.56 billion to CFA184.92 billion.

The net increase of CFA165.36 billion reconciles against CFA381.12 billion issued and CFA215.76 billion cancelled.

The government subscribed by converting claims described as certain, liquid and due in its shareholder current account, rather than injecting equivalent cash.

The sequence resembles an accordion operation, sometimes used to absorb accumulated losses before recapitalisation under OHADA company law.

Under Article 664 of the OHADA Uniform Act on Commercial Companies, directors must convene shareholders to consider dissolution if losses reduce equity below half the share capital. Article 665 addresses subsequent capital reduction if equity remains insufficient.

The reported notice does not confirm loss absorption as the purpose of Sonara's reductions.

Both reductions fell entirely on government shares. If they absorbed losses, the state bore the reductions alone. Minority holdings were not cancelled; they were diluted by the exclusive government share issue.

TotalEnergies' decline to 0.42% therefore reflects dilution rather than disposal or cancellation of its remaining shares.

Sonara's board approved CFA291.9 billion for its accelerated Parras 24 rehabilitation programme in December 2025. A broader reconstruction and modernisation proposal presented in June 2026 was estimated at CFA700 billion. The scopes differ; neither figure represents committed financing.

Obligations to banks and petroleum traders remain relevant. New lenders must assess outstanding claims, security and whether future refining margins can service debt.

Converting state claims into equity may strengthen Sonara's balance sheet without providing reconstruction cash.

The state absorbed the reductions through its own shares, while the government-only issue diluted minorities. Control became more concentrated without a conventional acquisition.

Sonara still needs committed rehabilitation funding, clear creditor priorities, construction obligations and an operating model capable of covering crude purchases, operating costs and debt service. The recapitalisation is not a funded return to refining.

Investir au Cameroun, 16 October 2026, Sonara recapitalisation | Business in Cameroon, 16 October 2026, ownership and capital restructuring | OHADA Uniform Act on Commercial Companies, Articles 664 and 665 | Investir au Cameroun, June 2026, refinery rehabilitation proposal

Shareholders of Australian mining company South32 have approved the proposed sale of its aluminium operations to US producer Alcoa, advancing a transaction with an implied enterprise value of up to US$5.6 billion.

The resolution passed on 15 October 2026, receiving 99.45% of votes cast on the poll. The previously reported 99.18% reflected voting instructions before the meeting.

The June agreement covers bauxite, alumina and aluminium operations in Australia, South Africa and Brazil.

The principal African asset is Hillside Aluminium, the smelter at Richards Bay in South Africa's KwaZulu-Natal province. The transaction also includes the idled Bayside smelter property.

South32's Mozal aluminium smelter in Mozambique is excluded and remains under South32 ownership on care and maintenance.

Alcoa will pay approximately US$3.1 billion in cash, subject to adjustments, and issue shares valued at approximately US$1 billion when the transaction was announced.

South32 may receive up to US$750 million in additional consideration linked to future aluminium and alumina prices. Alcoa will also assume approximately US$750 million in net debt and lease liabilities.

These components total the maximum US$5.6 billion enterprise value. Approximately US$1.1 billion in assumed rehabilitation liabilities is disclosed separately.

Alcoa confirmed on 16 October that it had completed US$2.6 billion in debt financing to help fund the cash consideration.

Completion remains subject to regulatory approvals and other conditions, with closing targeted for the first half of 2027.

Section 12A of South Africa's Competition Act requires public-interest assessment alongside competition review, including employment, industrial participation and ownership among historically disadvantaged persons and workers. The Hillside deal could attract employment or ownership conditions, but none have been established.

Such conditions could constrain restructuring. Hillside's electricity-intensive smelting also exposes Alcoa to South African power costs and reliability.

The sale would release capital for South32's remaining portfolio. Subject to completion and transaction terms, South32 intends to distribute at least half the Alcoa shares received to eligible shareholders.

Alcoa has arranged acquisition financing, but regulatory approval remains outstanding. The transaction transfers operating and rehabilitation obligations while preserving South32's exposure through Alcoa shares and contingent payments. Merger conditions could change Alcoa's post-closing flexibility.

Unlike Sonara's internal claim conversion, this transaction mobilises acquisition capital to transfer productive assets and liabilities. The test is whether it closes on acceptable regulatory terms.

South32, 2026 Annual General Meeting results, 15 October 2026 | Alcoa, October 2026 transaction update | South32 transaction explanatory memorandum, September 2026 | South Africa Competition Act, Section 12A

Australian uranium developer Deep Yellow has withdrawn its fourth-quarter 2026 final investment decision target for the Tumas uranium project in Namibia, citing difficult equity-market conditions.

The 16 October announcement confirmed continuing early works funded from existing cash.

Approximately 170 tonnes of reinforcing steel have been installed, and four contracts worth N$42.1 million, equivalent to A$3.7 million, have been awarded to Namibian businesses.

Environmental clearances run through September 2029. An April 2025 feasibility assessment estimated initial capital expenditure at US$474 million; Deep Yellow is updating project economics and has not set a new investment decision date.

Namibian peer Bannerman Energy has secured strategic financing.

On 24 September, Bannerman Energy completed a US$320.4 million investment from CNNC Overseas Limited, part of China's state-owned nuclear group, for its Etango uranium project.

CNNC acquired 45% of a holding company owning 95% of Etango, giving it a 42.75% look-through interest, against Bannerman's 52.25% and Namibia's One Economy Foundation's 5%.

Of the investment, US$294.5 million went into the joint venture and US$25.9 million reimbursed Bannerman for eligible expenditure.

Bannerman maintained its fourth-quarter 2026 final investment decision target. That decision has not yet been made.

The agreement also gives CNNC Overseas rights to purchase 60% of Etango's future uranium production at market-based prices, while major strategic decisions require joint approval.

Tumas continues preparatory works without full construction funding; Etango has secured strategic capital in return for ownership, governance and offtake rights.

Etango reduces reliance on public equity while sharing control and future supply. Neither project has reached final investment decision, but Etango has a funded partnership that Tumas lacks.

Deep Yellow, Tumas project update, 16 October 2026 | Bannerman Energy, completion of CNNC Overseas financing, 25 September 2026

Tharisa, the Johannesburg- and London-listed platinum group metals and chrome producer, has signed a binding agreement for Valterra Platinum to purchase 50% of the PGM concentrate produced at the Tharisa Mine in South Africa.

The multi-year agreement, announced on 15 October, takes effect on 1 January 2027.

Valterra replaces Sibanye-Stillwater as one of the mine's two concentrate buyers. Northam Platinum retains its arrangement covering the remaining 50%.

The agreement is between Tharisa Minerals, a wholly owned Tharisa subsidiary, and Rustenburg Platinum Mines, a Valterra subsidiary.

Detailed pricing provisions and the total contract value have not been disclosed.

Tharisa operates on South Africa's Bushveld Complex, selling concentrate to downstream buyers.

The Valterra agreement establishes a contractual buyer for a defined share of production. It does not eliminate commodity-price exposure or guarantee profitability.

The companies are also exploring fine chrome recovery opportunities using Tharisa's Vulcan X technology.

That collaboration remains separate from the binding concentrate agreement.

The relationship follows an earlier agreement involving Tharisa's Karo Platinum development project in Zimbabwe.

Tharisa has strengthened its commercial arrangements for an operating asset rather than seeking financing for an undeveloped project.

The binding offtake secures a sales route; the proposed chrome collaboration remains under evaluation.

For producers, commercial contracts can support revenue visibility, but their economic value ultimately depends on pricing terms, production performance and processing costs.

Tharisa, regulatory announcement, 15 October 2026 | Tharisa, Johannesburg Stock Exchange announcement, 15 October 2026

This section identifies listed companies with exposure to the commodities and jurisdictions covered above, so that readers can compare how the same country or sector development may affect different operators. It covers named participants in today's stories first, then other listed companies active in the same jurisdiction on the same commodity.

Exposure varies enormously in both size and directness, and several of the most important operators in these jurisdictions are private or state-owned and therefore absent. Inclusion is not investment advice or a recommendation to buy or sell any security.

South32 | ASX: S32 / LSE: S32 / JSE: S32

Direct disposal exposure. Shareholders have approved the proposed aluminium asset sale. Completion remains subject to regulatory and other conditions.

Alcoa | NYSE: AA / ASX: AAI

Direct acquisition exposure. Alcoa has completed US$2.6 billion in debt financing. Regulatory approval, integration obligations and post-completion leverage remain important.

Deep Yellow | ASX: DYL / NSX: DYL / OTCQX: DYLLF

Direct development exposure. Tumas has withdrawn its fourth-quarter investment target, with updated project economics and financing still outstanding.

Bannerman Energy | ASX: BMN / NSX: BMN / OTCQX: BNNLF

Strategic financing comparator. Bannerman has completed its US$320.4 million CNNC Overseas transaction for Etango, while final investment sanction remains pending.

Tharisa | JSE: THA / LSE: THS

Direct operating exposure. Tharisa has secured Valterra as purchaser of half its South African mine's PGM concentrate from January 2027.

Valterra Platinum | JSE: VAL / LSE: VALT

Direct processing exposure. Valterra will purchase 50% of Tharisa Mine concentrate and is evaluating fine chrome recovery opportunities.

Northam Platinum Holdings | JSE: NPH

Existing offtake exposure. Northam retains its agreement covering the remaining 50% of Tharisa Mine PGM concentrate.

Sibanye-Stillwater | JSE: SSW / NYSE: SBSW

Outgoing commercial counterparty. Valterra replaces Sibanye-Stillwater under the new Tharisa arrangement. The financial effect has not been quantified.