Copper Winners and Losers: Freeport

Updated from 1:37 p.m. ET

Southern Copper(PCU Quote) was up 8% on Tuesday as copper producers could benefit by an attempt in South America to coordinate pricing.

On Sunday, Peru's president said that Peru and Chile, two of the world's top three copper producers, should work together to boost sagging metal prices as the world economic crisis slashes demand for copper.

Peru President Alan Garcia told reporters in Lima that when neighboring countries that produce copper compete, "prices decline and both of them earn less. It would be a very important thing to lay out and coordinate our policies." ...