Mexico's Economy Secretary Ildefonso Guajardo Villarreal (L) shakes hands with Brazil's Foreign Minister Mauro Vieira after signing an agreement, as Brazil's Minister for Development, Industry and Trade Armando Monteiro Neto looks on, during a meeting in Rio de Janeiro, March 9, 2015. Brazil and Mexico will maintain an export quota for vehicles nearly unchanged, a Brazilian government source said on Monday, in a victory for the South American nation that wanted to avoid free trade to shield its industry. REUTERS/Pilar Olivares (BRAZIL - Tags: POLITICS BUSINESS TRANSPORT)