X0202 4 2007-08-30 0 0001319048 Chaparral Steel CO CHAP 0001244362 MAHAFFEY JOSEPH D 300 WARD ROAD MIDLOTHIAN TX 76065 1 0 0 0 Common Stock 2007-08-30 5 G 0 E 465 0.00 D 10757 D This amount includes 3,222 shares of restricted stock issued pursuant to the Chaparral Steel Company Amended and Restated 2005 Omnibus Equity Compensation Plan. The restrictions on these shares will expire on the date of the Company's 2007 Annual Meeting of Stockholders. /s/ Robert E. Crawford as attorney-in-fact for Joseph D. Mahaffey 2007-08-31