(Adds background on job cuts, meeting, previous strike)
LIMA May 14 Peru's largest federation of mining unions said on Thursday it has agreed to call an indefinite, nationwide strike starting on June 15 to demand better working conditions.
Unionized mine workers are upset by job cuts spurred by the global economic slowdown, which has slammed prices for most metals from Peru, a major global exporter. They also want a bigger share of profits and improved retirement rules.
The June strike date was set last week at a membership meeting of the National Federation of Mine and Steel Workers, Peru's largest organization of mining unions.
The federation says some 9,750 mine workers have lost their jobs since November.
Last year, the group held a nearly one-week strike, which hit some key mines and helped push global copper prices to record highs. The work stoppage had a minimal impact on production as managers called in temporary workers.
Peru is the world's top producer of silver, No. 2 in copper and zinc, and ranks sixth in gold output. (Reporting by Teresa Cespedes; Writing by Dana Ford; Editing by David Gregorio)