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Peru's gold production fell 11.6% in November to 13.6Mg (436,074oz) from 15.3Mg in the year-ago month, the mines and energy ministry (MEM) said in a release.
In the January-November period, yellow metal output was 150Mg, down 11.2% from the same period last year.
In the 11-month period, silver production totaled 3.30Mkg, down 6.49% year-on-year.
In base metals, November's lead production fell 23.9% to 19,397t from 25,497t on decreases at Argentum, Volcan, San Valentin and Milpo.
In January-November, lead output totaled 240,012t, down 13.5% from 277,366t.
Zinc production declined 20.7% to 109,839t from 138,487t on decreases at Antamina, Argentum, Volcan and Chungar.
In the first 11 months, zinc production was down slightly to 1.36Mt from 1.38Mt.
Copper output fell 4.39% to 104,407t in November from 109,207t on drops posted by Swiss-based Xstrata (LSE: XTA), Antamina and South Africa's Gold Fields (NYSE: GFI).
Red metal production declined in the first 11 months by 2.67% year-on-year to 1.13Mt from 1.16Mt
Iron ore output from the country's only producer, Shougang Hierro Peru, rose 7.43% to 440,661t from 410,204t.
Molybdenum production jumped 89.0% and tungsten climbed 37.7%, while tin output fell 15.6% in November.