Company: RTNTF
Filing Date: 2025-03-10
Form Type: 424B2
Source: 0001104659-25-022024
Chunk: 73

Company: RIO TINTO LTD
Filing Date: 2025-03-10
Form: 424B2
Chunk 73
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 amount ( Section 101 of the Base Indenture ). The prospectus supplement relating to original issue discount securities will describe additional U.S. federal income tax consequences and other special considerations applicable to them. The debt securities may also be issued as indexed securities or securities denominated in foreign currencies or currency units, as described in more detail in the prospectus supplement relating to any such debt securities.

Unless otherwise specified in the applicable prospectus supplement, the following terms will apply to a series of debt securities:

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### Business days
. A business day will be any day that is a New York business day, a London business day and/or a Euro business day, as specified in the applicable prospectus supplement. “London business day” means any day on which dealings in U.S. dollars are transacted in the London interbank market. “New York business day” means each Monday, Tuesday, Wednesday, Thursday and Friday that is not a day on which banking institutions in New York City generally are authorized or obligated by law, regulation or executive order to close. “Euro business day” means each Monday, Tuesday, Wednesday, Thursday and Friday on which the Trans-European Automated Real-Time Gross Settlement Express Transfer (TARGET) System, or any successor system, is open for business.

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### Business day convention
. With respect to fixed rate debt securities, if any interest payment date (other than the maturity date) would otherwise be a day that is not a business day, the relevant interest payment date will be postponed to the next day that is a business day. With respect to floating rate debt securities, if any interest reset date or interest payment date (other than the maturity date) would otherwise be a day that is not a business day, the relevant date will be postponed to the next day that is a business day. However, if that date would fall in the next succeeding calendar month, such date will be the immediately preceding business day.

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#### Calculation agent
. All calculations relating to a series of floating rate debt securities will be made by the calculation agent, an institution that we appoint as our agent for this purpose. The calculation agent will determine on each interest determination date the interest rate that takes effect on the applicable interest reset date. In addition, the calculation agent will calculate the amount of interest that has accrued during each interest period. Upon request, the calculation agent will provide notice of the interest rate then in effect and, if determined, the interest rate that will become effective on the