International Coal Group Announces Its 4.00% Convertible Senior Notes Due 2017 and 9.00% Convertible Senior Notes Due 2012 Have Become Convertible

International Coal Group, Inc.

announced today that, pursuant to terms of the indenture and first supplemental indenture governing its $115,000,000 aggregate principal amount of 4.00% Convertible Senior Notes due 2017, the 2017 Notes are now convertible at the option of holders during the period from April 1, 2011 through and including June 30, 2011. The Company also announced that, pursuant to terms of the indenture governing its remaining $731,000 aggregate principal amount of 9.00% Convertible Senior Notes due 2012, the 2012 Notes are now convertible at the option of holders during the period from April 1, 2011 through and including June 30, 2011.