Rio ponders future in Indonesia's Grasberg copper mine

Diversified miner Rio Tinto said on Wednesday it was continuing talks on the long-term future of its stake in the Grasberg copper mine in Indonesia and one of its top executives would visit the country for talks over the coming weeks. Mine operator Freeport McMoRan's exports of copper concentrate from Grasberg, the world's richest copper mine, have been at a standstill since mid-January, when Indonesia introduced rules intended to improve revenues from its resources and create jobs.