HSBC's chairman Stephen Green (R) speaks during a meeting with Britain's Prime Minister David Cameron (C), Business Secretary Vince Cable (2nd L) and Foreign Secretary William Hague at number 10 Downing Street in London September 7, 2010. HSBC Holdings said on Tuesday Green is stepping down to become Minister of State for Trade and Investment. REUTERS/Sang Tan/Pool (BRITAIN - Tags: POLITICS PROFILE BUSINESS)