Aspen Insurance Holdings Limited is a Bermuda holding company that provides property and casualty reinsurance in the global market, property and liability insurance, principally in the United Kingdom, and surplus lines insurance in the United States. It operates through its wholly owned subsidiaries located in London, Bermuda and the United States. As of September 30, 2003, approximately 50.3% of the Companys reinsurance gross premiums written covered risks located in the United States and Canada, approximately 19.9% covered risks located in the United Kingdom and the balance covered worldwide risks and risks located in western Europe, Japan and Australia. Aspens insurance business covers commercial risks predominantly located in the United Kingdom, with a small portion in Ireland and the United States.