Exhibit 99.1 AMENDMENT No. 3 AND AGREEMENT dated as of December 21, 2004 (this "Amendment"), to the Credit Agreement dated as of June 6, 2002 (as amended as of December 4, 2002 and as amended and restated as of June 6, 2003, and as further amended as...3 and Agreement • December 27th, 2004 • Trimas Corp • Metal forgings & stampings • New York
