X0202 4/A 2006-06-12 2006-06-14 0 0000949157 CENTURY ALUMINUM CO CENX 0001200076 DAVIS CRAIG A 2511 GARDEN ROAD BUILDING A, SUITE 200 MONTEREY CA 93940 1 0 0 1 Chairman of the Board Stock Option 35.90 2006-06-12 4 A 0 3000 0.00 A 2016-06-12 Common Stock 3000 3000 D June 12, 2006 grant of Stock Options. Options shall vest and become exercisable in four equal installments on each of (i) the date three months following the date of grant, (ii) the date six months following the date of grant, (iii) the date nine months following the date of grant, and (iv) the first anniversary of the date of grant. This Form 4/A is being filed to revise the exercise price reflected in the original Form 4 filed on the date hereof. /s/William J. Leatherberry as Attorney-in-Fact 2006-06-14