Two weeks ago the Royal Court ruled that the Brazilian authorities could have access to Paulo Maluf’s accounts as part of a serious fraud investigation in Brazil.
The 74-year-old, who was the mayor of Sao Paulo from 1993 to 1996, is alleged to have embezzled the money from various building projects he sanctioned, including the construction of a motorway and mountain tunnel.
But last week lawyers representing Mr Maluf’s interests in Jersey appeared before a Court of Appeal judge and were given leave to appeal.
They will present their case before the Court of Appeal on 13 March.
In the meantime the Attorney General, William Bailhache, will be prevented from releasing any details to the Brazilian authorities about Mr Maluf and any bank accounts he has connections with in Jersey.