Willis Chairman Joe Plumeri to Address Financial Services Authority's Insurance Conference on Principles-Based Regulation

Willis Group Holdings Limited (NYSE: WSH): Who/What: Joe Plumeri, Chairman and CEO of Willis, the global insurance broker, will address the FSA's Annual Insurance Sector Conference on the importance of the insurance industry embracing a principles-based rather than a rules-based approach to business. While the FSA specifically relates to regulation, Plumeri's unique perspective is embodied in the notion of being passionate about serving your clients which naturally leads to principles-based management. Plumeri also calls for consistent regulation around the world. When: Wednesday, 21 March 2007 Registration begin at 9:00 AM Where: QEII Conference Center Broad Sanctuary Westminster, London, SW1 Interested media should contact Heidi Ashley at Heidi.Ashley@fsa.gov.uk and/or Dan Prince at Daniel.Prince@willis.com. A copy of Mr. Plumeri’s prepared remarks will be available on the home page of www.willis.com.