Mark H. Rose Joins Argo Group as Chief Investment Officer

  Mark H. Rose Joins Argo Group as Chief Investment Officer

Business Wire

HAMILTON, Bermuda -- March 18, 2013

Argo Group International Holdings, Ltd. (NASDAQ: AGII), an international
underwriter of specialty insurance and reinsurance products, announced today
that Mark H. Rose has joined Argo Group as chief investment officer.

“Mark brings to Argo Group a broad knowledge of markets and asset classes and
has experience investing, managing and trading for a number of different
financial institutions,” said Argo Group Chief Executive Officer Mark E.
Watson III. “He will play a key role in shaping the strategy of our investment
portfolio with the aim of creating long-term growth in shareholder value
through our investment performance. We’re excited to have him on board.”

Prior to joining Argo Group, Mr. Rose served as a senior credit analyst at RBC
Capital Markets. His previous experience includes trading and analyst roles at
Deephaven Capital Management, Goldman Sachs & Co. and Credit Suisse First
Boston. Mr. Rose graduated from the United States Military Academy at West
Point with a bachelor’s degree in mathematics and is a CFA® charterholder.

About Argo Group International Holdings, Ltd.

Argo Group International Holdings, Ltd. (NASDAQ: AGII) is an international
underwriter of specialty insurance and reinsurance products in the property
and casualty market. Through its operating subsidiaries, Argo Group offers a
full line of products and services designed to meet the unique coverage and
claims handling needs of businesses in four primary segments: Excess & Surplus
Lines, Commercial Specialty, International Specialty and Syndicate 1200. Argo
Group’s worldwide insurance subsidiaries are rated ‘A’ (Excellent) by A.M.
Best with a stable outlook and its U.S. insurance subsidiaries are rated ‘A-’
(Strong) by Standard & Poor’s with a stable outlook. For more information,
visit www.argolimited.com.

Contact:

Argo Group International Holdings, Ltd.
Lisa Scannell, 617-235-6138
VP, Marketing & Communications
lscannell@argogroupus.com