Chilean copper mine Dona Ines de Collahuasi still hasn't determined how much output was lost on the 33-day strike at the mine, an Anglo American PLC (AAUKY, AAL.LN) executive said Tuesday.

Anglo and diversified mining company Xstrata PLC (XTA.LN) each hold a 44% in Collahuasi, one of the world's largest copper mines.

"The impact is still under evaluation," said Anglo American Chile chief executive Miguel Angel Duran.

He added that in all likelihood, the biggest impact had been not on output but on ore movement.

During the 33-day strike that ended earlier this month, Collahuasi sent out several copper shipments to international clients.

Unionized workers returned to their posts last week, and the mine sent out a small copper shipment this week, said a person at the company who asked to remain anonymous.

Another three shipments, totaling about 45,000 metric tons of copper, are due to leave sometime this week. A consortium led by Mitsui & Co. (MITSY, 8031.TO) holds the remaining 12% of the mine.

Collahuasi is one of the world's largest copper mines and is located 185 kilometers southeast of the port of Iquique, high in the Andes mountains at 4,400 meters above sea level. It produces about 500,000 tons of coper a year.

-By Carolina Pica, Dow Jones Newswires; 56-2-715-8919; carolina.pica@dowjones.com

 
 
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