Rio Tinto Ltd could acquire up to 19.9 per cent of Perth-based iron ore hopeful Grange Resources Ltd, making it Grange's largest security-holder, after agreeing to sell iron ore tenements adjoining the Southdown magnetite deposit.

Rio Tinto Ltd could acquire up to 19.9 per cent of Perth-based iron ore hopeful Grange Resources Ltd, making it Grange's largest security-holder, after agreeing to sell iron ore tenements adjoining the Southdown magnetite deposit.