Significant Customers

12 Months Ended

Dec. 31, 2012

Risks and Uncertainties [Abstract]

Significant Customers

16. Significant Customers

For the years ended December 31, 2012, 2011 and 2010, the BASF Corporation accounted for approximately 17%, 14% and 13%, respectively, of our total consolidated sales revenue and the Tioxide Europe Ltd. Corporation represented approximately 16% of our total 2012 consolidated sales.