The Lima Stock Exchange's broad General Index closed 0.86% weaker at 23335.12. The blue-chip Selective Index ended 0.65% lower at 32962.96.
Precious-metals miner Compania de Minas Buenaventura SAA was off 0.13% to end at $39.60, as the price of gold fell, Dow Jones Newswires reported.
Silver and lead miner Volcan Compania Minera SAA eased 0.27% to end at PEN3.68, while silver producer Sociedad Minera El Brocal SAA lost 1.92% to end at PEN51.00.
(END) INT/EEP