President Luiz Inacio Lula da Silva began a six-day, five-nation tour Sunday to develop energy and biofuel agreements in Latin America and the Caribbean, AP reported. Silva and Mexican President Felipe Calderon on Monday are expected to sign a memorandum of understanding on biofuel as part of a wide-ranging energy agreement. They will also discuss an accord on deep-water oil exploration, said the Brazilian leader's spokesman, Marcelo Baumbach. About 50 Brazilian executives will accompany Silva to Mexico in an effort to expand bilateral trade, which reached US$5.75 billion (¤4.2 billion) in 2006, the Brazilian foreign ministry said. However, Foreign Minister Celso Amorim said that a trade accord between Brazil and Mexico is not on Silva's agenda. The countries are the two largest economies in Latin America, accounting for about two-thirds of Latin America's gross national product, according to the International Monetary Fund. Silva will travel Tuesday to Honduras, where he is also expected to sign a biofuel agreement, the foreign ministry said. He will then visit Nicaragua and Jamaica, where he will attend inauguration of an ethanol dehydration plant owned by Jamaican and Brazilian investors. In Panama, Silva is expected to sign a memorandum of understanding for joint biofuel development and to promote the participation of Brazilian companies in Panama's planned expansion of the Panama Canal. Brazil, the world's leading ethanol exporter, has been touting its sugarcane-based biofuel around the world as a cheap, eco-friendly alternative to fossil fuels amid soaring oil prices and global warming concerns. The South American country signed a biofuel accord this year with Chile and the Dominican Republic.