Decisions by OEMs ripple throughout the entire supply chain. As aircraft manufacturers continue their efforts to lower or keep down production costs, the entire supply chain finds itself in a similar position. Many suppliers have found in Mexico an excellent base of operations thanks to its ideal location, young labor force and numerous trade agreements. Aerospace companies are spread throughout 18 states in Mexico but most companies are clustered in five: Baja California, Chihuahua, Nuevo Leon, Queretaro and Sonora. Some, such as Safran, entered the country with a modest proposal and have now greatly increased their investment and operations.