A walkout had been underway from Tuesday until negotiations reached a settlement late on Saturday.

Mine workers had demanded a minimum monthly wage of at least 3.2 million rupiah (US$352). The negotiations finally settled on a range of 3.1 to 3.6 million rupiah.

The walkout worried markets and  world copper prices rose to US$8,000 a tonne in london amid concerns disruptions could lead to a drop in stockpiles of the metal.

  Freeport Indonesia has mining concessions totaling 3.6 million hectares stretching from the coast to the central mountain range with copper reserves estimated at 2.6 billion tonnes.