Rio Tintohas revealed what it is willing to pay for its planned US$1.5 billion debt buyback.

The mining heavyweight plans to buy back its 2% notes due 2017for US$1,006.91 and its 1.625% notes due 2017 for US$1,005.85 per US$1,000 principalamount, according to an April 27 statement.

There is currently US$500 million worth of 2% notes due 2017and US$1.25 billion worth of 1.625% notes due 2017 outstanding.

Rio Tinto signaled earlier in April that if any of the US$1.5billion earmarked for the debt buyback is left after it has repurchased the 2017bonds, it will buy back Dutch auction securities, which include its 6.5% US$1.75billion notes and 2.25% US$1.25 billion notes due 2018.

The deadline for the offer is 5 p.m. ET on April 27.