CHICAGO & NEW YORK--(BUSINESS WIRE)--Copper mining companies in Latin America are well positioned within the global cost curve to withstand a period of lower copper prices that are currently around $2.40/lb, according to Fitch Ratings. Copper prices declined from around $3.10/lb on average during 2014. The price decline represents a relatively modest copper surplus of around 200,000 tonnes of copper per year expected through 2016 within a total market of around 21 million tonnes of copper annua