MEDIA RELEASE PR39767 
 
Allied World Establishes Syndicate 2232 at Lloyd's of London 
 
PEMBROKE, Bermuda, June 3 /PRNewswire-AsiaNet/ -- 
 
    Allied World Assurance Company Holdings, Ltd (NYSE: AWH) announced today that it received 
approval from Lloyd's of London to establish a new syndicate. Syndicate 2232, with the pseudonym 
AWH, will be fully operational and writing business effective June 30, 2010. 
 
 
    Syndicate 2232 will be managed by Capita Managing Agency Limited, a subsidiary of The Capita 
Group PLC, which is authorized by the Financial Services Authority in the United Kingdom. The active 
underwriter will be Darren Powell, currently Senior Vice President and manager of International Property 
at Allied World Assurance Company (Reinsurance) Limited in London. 
 
    The syndicate will offer select product lines, which include international property, general casualty, 
professional lines and international treaty, targeted at key territories such as countries in Latin America 
and the Asia Pacific region. Syndicate 2232's primary purpose is to enhance Allied World's international 
platform and capabilities. 
 
    President and Chief Executive Officer Scott Carmilani commented, "As we look to expand our global 
distribution network and further enhance our existing business model, Lloyd's of London is a key partner 
in achieving these strategic objectives. Its reputation as the world's leading provider of insurance is 
unsurpassed and we are excited to join this elite market." 
 
    About Allied World Assurance Company  
    Allied World Assurance Company Holdings, Ltd, through its subsidiaries, is a global provider of 
innovative property, casualty and specialty insurance and reinsurance solutions, offering superior client 
service through offices in Bermuda, Europe, Hong Kong, Singapore and the United States. Our 
insurance and reinsurance subsidiaries are rated A (Excellent) by A.M. Best Company. For further 
information on Allied World, please visit our website at www.awac.com.  
 
    Cautionary Statement Regarding Forward-Looking Statements 
    Any forward-looking statements made in this press release reflect our current views with respect to 
future events and financial performance and are made pursuant to the safe harbor provisions of the 
Private Securities Litigation Reform Act of 1995. Such statements involve risks and uncertainties, which 
may cause actual results to differ materially from those set forth in these statements. For example, our 
forward-looking statements could be affected by pricing and policy term trends; increased competition; 
the impact of acts of terrorism and acts of war; greater frequency or severity of unpredictable 
catastrophic events; investigations of market practices and related settlement terms; negative rating 
agency actions; the adequacy of our loss reserves; the company or its subsidiaries becoming subject to 
significant income taxes in the United States or elsewhere; changes in regulations or tax laws; changes 
in the availability, cost or quality of reinsurance or retrocessional coverage; adverse general economic 
conditions; and judicial, legislative, political and other governmental developments, as well as 
management's response to these factors, and other factors identified in our filings with the U.S. 
Securities and Exchange Commission. You are cautioned not to place undue reliance on these forward-
looking statements, which speak only as of the date on which they are made. We are under no 
obligation (and expressly disclaim any such obligation) to update or revise any forward-looking 
statement that may be made from time to time, whether as a result of new information, future 
developments or otherwise. 
 
     SOURCE: Allied World Assurance Company Holdings, Ltd 
 
    CONTACT: Media  
             Faye Cook 
             VP, Marketing & Communications 
             +1-441-278-5406 
             faye.cook@awac.com, or  
 
             Investors 
             Keith J. Lennox 
             Investor Relations Officer 
             +1-646-794-0750 
             keith.lennox@awac.com 
 
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