March 2011 - Marmon/Keystone LLC, Butler, Pa., and the Laborers’ Union No. 663 of greater Kansas City reached an agreement with the production workers at the company’s Kansas City, Mo., service center. The new labor contract will expire June 30, 2013. "The company and the union continue to maintain a good working relationship, and we are pleased with the outcome of these negotiations," Gary Eisenbrandt, Marmon/Keystone district manager for the Kansas City and Denver operations, said in a press release.