A group of Brazilian ethanol companies signed a deal to export certified sustainable ethanol to Sweden, in the world's first agreement of such a kind...Brazilian groups Cosan, Guarani, NovAmerica and Alcoeste agreed sell to Sweden's Sekab...ethanol that will adhere to certain social and environmental standards...Among the standards is zero tolerance for child or slave labor...Martinho Seiiti Ono, director at trading company SCA that will manage the exports, said "It is the first practical application of verified sustainable ethanol and is a major step toward realizing an international standard..."...