Company: RTNTF
Filing Date: 2025-03-13
Form Type: 424B5
Source: 0001104659-25-023282
Chunk: 120

Company: RIO TINTO LTD
Filing Date: 2025-03-13
Form: 424B5
Chunk 120
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 stated interest before maturity (an “installment obligation”) will be treated as a Discount Debt Security if the excess of the debt security’s stated redemption price at maturity over its issue price is equal to or more than 0.25% of the debt security’s stated redemption price at maturity multiplied by the weighted average maturity of the debt security. A debt security’s weighted average maturity is the sum of the following amounts determined for each payment on a debt security (other than a payment of qualified stated interest): (i) the number of complete years from the issue date until the payment is made multiplied by (ii) a fraction, the numerator of which is the amount of the payment and the denominator of which is the debt security’s stated redemption price at maturity. Generally, the issue price of a debt security will be the first price at which a substantial amount of debt securities included in the issue of which the debt security is a part is sold to persons other than bond houses, brokers, or similar persons or organizations acting in the capacity of underwriters, placement agents, or wholesalers. The stated redemption price at maturity of a debt security is the total of all payments provided by the debt security that are not payments of “qualified stated interest”. A qualified stated interest payment generally is any one of a series of stated interest payments on a debt security that are unconditionally payable at least annually at a single fixed rate (with certain exceptions for lower rates paid during some periods), or a variable rate (in the circumstances described below under “— Variable Interest Rate Debt Securities ”), applied to the outstanding principal amount of the debt security. Solely for the purposes of determining whether a debt security has OID, we will be deemed to exercise any unconditional call option that has the effect of decreasing the yield on the debt security, and the U.S. Holder will be deemed to exercise any unconditional put option that has the effect of increasing the yield on the debt security. If the option is not in fact exercised, the debt security would be treated solely for purposes of calculating OID as if it were redeemed and a new debt security were issued on the date of the change in circumstances for an amount equal to the “adjusted issue price” (as defined below) of the debt security.

U.S. Holders of Discount Debt Securities generally must include OID in income calculated on a constant-yield method before the receipt of cash attributable to the income, and generally will have to include in income increasingly greater amounts of OID over the life of the Discount Debt Securities. The amount of OID includible in income by