Strike halts output at top Peru copper mine Cerro Verde: union

Strike halts output at top Peru copper mine Cerro Verde: union

Workers at Freeport-McMoRan's Cerro Verde started an indefinite strike on Friday that halted output of about 40,000 tonnes per month at Peru's top copper mine, a union official said on Friday.

Copper prices rose following the latest disruption to global supplies, amid a monthlong strike at BHP Billiton's Escondida mine in Chile and a dispute over export rights at Freeport's Glasberg mine in Indonesia.

The 1,300 unionized workers at Cerro Verde downed tools at 7:30 a.m. (12:30 GMT), said union leader Cesar Fernandez.

According to Fernandez, the company plans to mitigate the effects of the strike using non-unionized workers. He said 300 or 400 employees at the mine do not belong to the union and do not normally work in areas key to production.

Cerro Verde and Freeport representatives did not immediately respond to requests for comment.

Three-month copper on the London Metal Exchange was up 1.2 percent at $5,760 a tonne. Prices had fallen to $5,652, their lowest since Jan. 10, in the previous session.

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