Century Aluminum Company (CENX) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum

Century Aluminum Company Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum

Century Aluminum Company (CENX) reported Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum of 0.61% for the 12-month period ending 2012-12-31, per its 10-K filed 2013-03-18.

Discontinued › Notes › Compensation Related Costs › Share-Based Payment Arrangement, Disclosure › Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions and Methodology

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum · last filed 2013-03-18

• Century Aluminum Company share-based compensation arrangement by share-based payment award, fair value assumptions, expected volatility rate, minimum for fiscal 2012 was 0.61%, a 98.78% decline from fiscal 2011.
• Century Aluminum Company share-based compensation arrangement by share-based payment award, fair value assumptions, expected volatility rate, minimum for fiscal 2011 was 50.00%, a 53.27% decline from fiscal 2010.
• Century Aluminum Company share-based compensation arrangement by share-based payment award, fair value assumptions, expected volatility rate, minimum for fiscal 2010 was 107.00%, a 4.90% increase from fiscal 2009.
• Century Aluminum Company share-based compensation arrangement by share-based payment award, fair value assumptions, expected volatility rate, minimum for fiscal 2009 was 102.00%.