Allied World Reinsurance Receives Approval for Lloyd's Coverholder for Latin America Treaty Business

 Allied World Reinsurance Receives Approval for Lloyd's Coverholder for Latin
                           America Treaty Business

  PR Newswire

  ZUG, Switzerland, Sept. 27, 2012

ZUG, Switzerland, Sept. 27, 2012 /PRNewswire/ -- Allied World Assurance
Company Holdings, AG (NYSE: AWH) announced today that the Miami operation of
Allied World Reinsurance Management Company has received approval to act as a
Lloyd's coverholder to underwrite treaty business on behalf of Allied World's
Lloyd's Syndicate 2232. The coverholder will offer a broad range of property
and casualty treaty products and services. Allied World Reinsurance opened its
Miami branch in May 2012 to service clients and brokers in Latin America and
the Caribbean. The Miami office is led by Will Turkel, Senior Vice President
& General Manager, Latin America & Caribbean.

Darren Powell, the Active Underwriter for Syndicate 2232, commented,
"Coverholders allow Lloyd's syndicates greater access in the regions where
they conduct business. This coverholder is a cost-effective way for Allied
World Reinsurance to build-out operations regionally and continue to provide
its trading partners with the exceptional security and service they have come
to expect."

Kevin Marine, Executive Vice President, International & Global Specialty,
added, "Since the beginning of 2012, Allied World Reinsurance has centralized
its operations and continues building-out our book of business in regions
around the globe where we can make a meaningful impact. Our Miami operation
was a key objective for us this year and we are exceptionally pleased with the
progress that Will Turkel and his team have made on the ground. The addition
of our coverholder will allow us to continue expanding in the region."

For more information about Allied World's reinsurance capabilities in the
Latin American region, please contact Will Turkel at .

About Allied World Assurance Company Allied World Assurance Company Holdings,
AG, through its subsidiaries, is a global provider of innovative property,
casualty and specialty insurance and reinsurance solutions, offering superior
client service through a global network of offices and branches. All of Allied
World's rated insurance and reinsurance subsidiaries are rated A by A.M. Best
Company, A by Standard & Poor's, and A2 by Moody's, and our Lloyd's Syndicate
2232 is rated A+ by Standard & Poor's and Fitch. Please visit for
further information on Allied World.

Our Lloyd's Syndicate 2232 is managed by Capita Managing Agency Limited, which
is a subsidiary of The Capita Group, Plc, and is authorized by Lloyd's and the
Financial Services Authority of the United Kingdom.

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; 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.

Contact: Media: Faye Cook, Vice President, Marketing & Communications,
+1-441-278-5406,; Investors: Keith J. Lennox, Investor
Relations Officer, +1-646-794-0750,
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