Aluminum Corp. of China (Chalco) ( ACH) relinquished 9.2% after S&P affirmed a BBB+ rating on the company with a negative outlook.

Major silver producers like MAG Silver ( MVG) and Silver Wheaton ( SLW) shed 11% and 8.9%, respectively. Endeavour Silver ( EXK) dipped 8.5%. Silver prices decreased by 2.6% to close at $29.93 per ounce at the close last week.

If you liked this article you might like

McKesson Takes a Hit on Earnings, Drags Cardinal and Amerisource Bergan Down With It

Global Pharma Players Likely to Flock to Medivation

5 Stocks Under $10 Set to Soar

3 Stocks Advancing The Basic Materials Sector

3 Metals & Mining Stocks Moving The Industry Upward