X0202 4 2006-12-18 0001022671 STEEL DYNAMICS INC STLD 0001027286 BATES JOHN C 640 LAVOY ROAD ERIE MI 48133 1 0 0 0 Common Stock 2006-12-18 4 S 0 130000 32.88 D 2870002 I See footnote Common Stock 2000 D Effected only as a non-cash contribution by Heidtman Steel Products, Inc. to its pension plan trust. Neither Heidtman nor the reporting person has or shares voting or dispostive power over trust assets. Through control of Heidtman Steel Products, Inc., which holds these shares. John C. Bates 2006-12-20