Freeport's export permit for Grasberg, the world's second-biggest copper mine, is due to expire on Friday, as is Amman's permit to ship ore concentrate from its Batu Hijau mine on the island of Sumbawa.
Platinum demand fell nearly 7 percent last year, with sharp falls seen in Japanese investment and Chinese jewellery buying as well as a slowdown in consumption by carmakers, who use the metal in catalytic converters.
The firm, North America's No.1 producer of coking coal, said the boost in profit was mainly thanks to the reversal of an impairment charge related to an improvement in the outlook for steelmaking commodity.