Copper futures for December delivery rose as mine strikes in Peru began, possibly causing supply disruptions.

Copper rose to 11 cents, or 0.3 percent, $3.722 per pound at 10:53 p.m., according to Reuters/Jefferies CRB

Workers at Southern Copper Corp.’s Peruvian operations, which include mine complexes, smelting and refining plants, began an indefinite strike over wage disputes at its Toquepala mine, Ilo smelting plant and Cuajone mine.