NEW YORK, NY--(Marketwired - Sep 17, 2014) - Mizuho Bank (Mizuho) (NYSE: MFG) today announced the addition of John Castanon as a Director in its Public Finance Investment Banking Group. In his new role, Mr. Castanon will help further expand Mizuho's public finance business by providing municipal credit analysis and client relationship management services. He will be based in New York and report to Bran Raskovic, Managing Director and Head of Public Finance.