Workers at Freeport-McMoRan's giant gold and copper mine in eastern Indonesia say they are extending their strike into a third month.
Most of the mine's 12,000 unionized employees _ currently paid between $2.10 to $3.50 an hour _ walked off their jobs on Sept. 15 to demand higher wages.
Union spokesman Virgo Solossa said Tuesday they decided to remain on strike until at least Dec. 15 after negotiations failed.
The two sides will continue talks on Wednesday.
The workers are now asking for $7.50 an hour _ down from an earlier demand of $17.50 to $43. The company is offering a 35 percent increase over the next two years.
Myra Maria Hanartani of the Manpower and Transmigration Ministry called on both sides to resolve the issue immediately.