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

Company: RIO TINTO LTD
Filing Date: 2025-03-10
Form: 424B2
Chunk 10
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 the date of redemption.

See “Description of Guaranteed Notes — Optional Redemption” beginning on page S-24 of this prospectus supplement for more information.

### Business Day Convention
Following, Unadjusted.

#### Day Count Fraction
30/360.

#### CUSIP

#### ISIN

#### 20   Notes

#### Stated Maturity
, 20

#### Principal Amount of Notes Being Issued
U.S.$

#### Issue Price
%

#### Interest Rate
%

#### Date Interest Starts Accruing
, 2025

#### Interest Payment Dates
Semi-annually in arrear on and of each year, commencing , 2025.

#### Optional Redemption
The 20 Notes will be redeemable at our option or at the option of Rio Tinto plc and Rio Tinto Limited, in whole or in part, at any time. Upon redemption, we will pay a redemption price equal to (i) if such redemption occurs prior to (the “20 Par Call Date”), the greater of (x) 100% of the principal amount of the notes to be redeemed and (y) as certified to the trustee by us or Rio Tinto, the sum of the present values of the Remaining Scheduled Payments discounted to the date of redemption on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate plus a spread of basis points less interest accrued at the date of redemption or (ii) if such redemption occurs on or after the 20 Par Call Date, 100% of the principal amount of the 20 Notes to be redeemed, together, in either case, with accrued interest on the principal amount of the 20 Notes to be redeemed to the date of redemption.

See “Description of Guaranteed Notes — Optional Redemption” beginning on page S-24 of this prospectus supplement for more information.

### Business Day Convention
Following, Unadjusted.

#### Day Count Fraction
30/360.

#### CUSIP

#### ISIN

#### 20   Notes

#### Stated Maturity
, 20

#### Principal Amount of Notes Being Issued
U.S.$

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TABLE OF CONTENTS

#### Issue Price
%

#### Interest Rate
%

#### Date Interest Starts Accruing
, 2025

#### Interest Payment Dates
Semi-annually in arrear on and of each year, commencing , 2025.

#### Optional Redemption