X0202 4 2007-09-14 1 0001319048 Chaparral Steel CO CHAP 0001190398 VALENTA TOMMY A 300 WARD ROAD MIDLOTHIAN TX 76065 1 1 0 0 President and CEO Common Stock 2007-09-14 4 D 0 117499.46 86.00 D 0 D Common Stock 2007-09-14 4 D 0 1683.211 86.00 D 0 I by 401(k) plan Stock Option (right to purchase) 3.08 2007-09-14 4 D 0 41616 82.92 D 2013-01-15 Common Stock 41616 0 D Stock Option (right to purchase) 2.675 2007-09-14 4 D 0 108844 83.325 D 2013-05-15 Common Stock 108844 0 D Stock Option (right to purchase) 7.645 2007-09-14 4 D 0 52338 78.355 D 2015-01-11 Common Stock 52338 0 D Stock Option (right to purchase) 9.20 2007-09-14 4 D 0 688711 76.80 D 2015-07-29 Common Stock 688711 0 D Stock Option (right to purchase) 38.791 2007-09-14 4 D 0 15467 47.209 D 2016-10-11 Common Stock 15467 0 D Stock Option (right to purchase) 62.8633 2007-09-14 4 D 0 9544 23.1367 D 2017-04-11 Common Stock 9544 0 D These shares were disposed of in connection with Chaparral Steel Company's acquisition by Gerdau Ameristeel Corporation (effective September 14, 2007) (the "Acquisition"). Pursuant to the merger agreement, the reporting person is entitled to receive a cash payment equal to $86 multiplied by the number of shares which were disposed of in connection with the Acquisition. These options, including options which were scheduled to vest in the future, were cancelled in connection the Acquisition. Pursuant to the merger agreement, the reporting person is entitled to receive a cash payment equal to the difference between $86 and the exercise price of the subject options multiplied by the number of options which were cancelled in connection with the Acquisition. /s/ Robert E. Crawford, Jr. as attorney-in-fact for Tommy A. Valenta 2007-09-17