Alcoa Corporation filed a Current Report on Form 8-K with the Securities and Exchange Commission on September 9, 2026, disclosing details regarding its proposed acquisition of assets from South32 Limited and the financing strategy to support the deal.
The company announced a proposed offering of $2.6 billion in aggregate principal amount of senior notes. The notes are to be issued by two wholly-owned subsidiaries: Alumina Pty Ltd (ABN 85 004 820 419) and Alcoa Nederland Holding B.V. The offering consists of (i) senior notes due 2034 and (ii) senior notes due 2036.
The net proceeds from this debt issuance, combined with existing cash on hand, are intended to fund the cash portion of the consideration for the previously announced acquisition of South32’s interests in certain bauxite, alumina, and aluminum smelter operations. These operations are collectively referred to as the AliGroup and include South32 Aluminium (RAA) Pty Ltd, South32 Aluminium (Worsley) Pty Ltd, South32 Minerals SA, South32 Aluminium SA (Pty) Ltd, and Hillside Aluminium (Pty) Limited.
The total cash consideration for the acquisition is approximately $3.1 billion, subject to certain adjustments. Alcoa expects to use the net proceeds to terminate any remaining commitments under a previously issued senior unsecured 364-day bridge term loan credit facility upon completion of the notes offering. The acquisition is contingent upon the satisfaction of various conditions, including approval from South32’s shareholders and the receipt of required regulatory approvals.
In connection with the transaction, Alcoa filed a Registration Statement on Form S-4 with the SEC on September 1, 2026. The statement was declared effective on September 8, 2026, and included unaudited pro forma condensed combined financial information for the year ended December 31, 2025, and the six months ended June 30, 2026. This financial data reflects the historical results of Alcoa and the AliGroup, along with acquisition accounting adjustments and financing adjustments.