X0303 4 2011-03-10 0000055604 KEYSTONE CONSOLIDATED INDUSTRIES INC KYCN 0000024240 CONTRAN CORP 5430 LBJ FREEWAY, SUITE 1700 DALLAS TX 75240 0 0 1 0 0001037854 SIMMONS HAROLD C 5430 LBJ FREEWAY, SUITE 1700 DALLAS TX 75240 0 0 1 0 Common Stock, par value $0.01 per share 2011-03-10 4 P 0 10351 6.50 A 9096379 D On March 10, 2011, Contran Corporation ("Contran") purchased 10,351 additional shares of the issuer's common stock in Contran's tender offer for up to 2,600,000 shares of common stock of the issuer at a price of $6.50 net per share in cash, without interest and less applicable withholding taxes. Directly held by Contran Corporation. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationship of an additional person who may be deemed to beneficially own these shares. Annette C. Simmons directly holds 13,457 shares of the common stock of the issuer. See Additional Information filed as Exhibit 99 to this statement for a description of her relationship to Contran Corporation. Exhibit Index Exhibit 99 - Additional Information A. Andrew R. Louis, Secretary, for Contran Corporation 2011-03-11 A. Andrew R. Louis, Attorney-in-fact, for Harold C. Simmons 2011-03-11