James Pérez is responsible for organizing and representing the members of LIUNA in Puerto Rico. James is a great defender of workers’ rights here on the Island. He was previously president of the Union of Workers of the Puerto Rican Cement. He worked for CEMEX Puerto Rico and prior to that he worked for Northrop Grumman in Pascagoula, Mississippi. James believes strongly in LIUNA because he considers it a progressive union, active and capable of contributing to our economy: “This union (LIUNA) is the best tool to defend and assert our rights as workers, and to obtain better wages and better working conditions. job”.