Exhibit 10.21.1 AMENDMENT TO AGREEMENT THIS AMENDMENT TO AGREEMENT is entered into as of this 28th day of October, 2005, by and between UNION PACIFIC RAILROAD COMPANY ("UP") and CXT INCORPORATED ("CXT"). WHEREAS, UP and CXT entered into an Agreement...Amendment to Agreement • November 14th, 2005 • Foster L B Co • Wholesale-metals service centers & offices
