Company: RTNTF
Filing Date: 2025-03-13
Form Type: 424B5
Source: 0001104659-25-023282
Chunk: 28

Company: RIO TINTO LTD
Filing Date: 2025-03-13
Form: 424B5
Chunk 28
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 making these potentially subjective determinations, we, our designee or the calculation agent may have economic interests that are adverse to your interests, and such determinations may adversely affect the value of and return on the Floating Rate Notes. Because the Benchmark Replacement is uncertain, we (in consultation, to the extent practicable, with the calculation agent) or our designee (in consultation with us) are likely to exercise more discretion in respect of calculating interest payable on the Floating Rate Notes than would be the case in the absence of a Benchmark Transition Event and related Benchmark Replacement Date. Neither they nor we will have any obligation to consider your interests as a noteholder in taking any action that might affect the value of the Floating Rate Notes.

The application of a Benchmark Replacement and Benchmark Replacement Adjustment, and any implementation of Benchmark Replacement Conforming Changes, could result in adverse consequences to the amount of interest payable on the Floating Rate Notes, which could adversely affect the return on, value of and market for such Floating Rate Notes. Further, there is no assurance that the characteristics of any Benchmark Replacement will be similar to the then-current Benchmark that it is replacing, or that any Benchmark Replacement will produce the economic equivalent of the then-current Benchmark that it is replacing.

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### USE OF PROCEEDS
We estimate that the net proceeds (after underwriting discounts and commissions, estimated offering expenses and underwriting reimbursements) from the sale of the Notes will be approximately U.S.$8,914,490,500. We intend to use the net proceeds for general corporate purposes, including to repay debt incurred pursuant to the Bridge Loan Facility in order to finance the acquisition of Arcadium Lithium plc by Rio Tinto BM Subsidiary Limited, an indirect wholly owned subsidiary of Rio Tinto plc. Approximately U.S.$7 billion in aggregate principal amount of indebtedness, which bears interest at an average annual rate of SOFR plus 52 basis points, which was incurred pursuant to the Bridge Loan Facility, is intended to be repaid with the proceeds of issuance of the Notes. See “The Offering — The following terms apply to the Notes — Use of Proceeds” and “Underwriting”.

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CAPITALIZATION AND INDEBTEDNESS OF RIO TINTO The following table sets out the capitalization and indebtedness of Rio Tinto in accordance with IFRS (i) on an actual basis as of December