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A.M. Best Affirms Ratings of Platinum Underwriters Holdings, Ltd. and Its Subsidiaries


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Greg Reisner

Managing Senior Financial Analyst

(908) 439-2200, ext. 5224

greg.reisner@ambest.com

Robert DeRose

Vice President

(908) 439-2200, ext. 5453

robert.derose@ambest.com

Rachelle Morrow

Senior Manager, Public Relations

(908) 439-2200, ext. 5378

rachelle.morrow@ambest.com

Jim Peavy

Assistant Vice President, Public Relations

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james.peavy@ambest.com


FOR IMMEDIATE RELEASE

OLDWICK, N.J. - APRIL 25, 2013 12:00 AM (EDT)
A.M. Best Co. has affirmed the financial strength rating of A (Excellent) and issuer credit ratings (ICR) of “a” of Platinum Underwriters Bermuda, Ltd. (Bermuda) and its strategic affiliate, Platinum Underwriters Reinsurance, Inc. (Baltimore, MD). A.M. Best also has affirmed the ICR of “bbb” and debt ratings of Platinum Underwriters Holdings, Ltd. (Bermuda) [NYSE: PTP] (collectively referred to as Platinum) as well as the debt ratings of Platinum Underwriters Finance, Inc. (Delaware). The outlook for all ratings is stable. (See below for a detailed list of the debt ratings.)

The ratings reflect the group’s excellent risk-adjusted capitalization, stable management team, focused business strategy, which strictly emphasizes cycle management, and overall enterprise risk management capabilities. The ratings also consider the organization’s market profile and low financial leverage.

For full year 2012 and the first quarter of 2013, Platinum reported solid operating performance. In the fourth quarter of 2012, Platinum easily absorbed losses from Superstorm Sandy, which struck the northeastern part of the United States. This comes on the back of 2011, when Platinum experienced significant catastrophe losses, which resulted in a sizeable net operating loss but only a modest reduction in capital. In the quarters that have followed 2011, Platinum continues to execute its resolute cycle management strategy on its simple, yet efficient, operating platform while generating strong historical long-term returns and maintaining excellent risk-adjusted capitalization.

Somewhat offsetting these strengths are A.M. Best’s concerns that Platinum’s steadfast cycle management strategy may someday impede its ability to take optimum advantage of future market opportunities as they arise. While it may still be too early to fully evaluate the impact of such a strategy across the entire business cycle, A.M. Best will continue to monitor the organization’s business profile and market position with regard to significant rating considerations.

Factors that could lead to a downgrading of Platinum’s ratings or a revision of its outlook to negative include unfavorable operating profitability trends, outsized catastrophe or investment losses relative to expectations and peers, significant adverse loss reserve development and/or a material decline in risk-adjusted capital. Alternatively, factors that could lead to an upgrading of the company’s ratings include sustained, long-term favorable operating profitability, coupled with maintenance of strong risk-adjusted capital levels.

The following debt ratings have been affirmed:

Platinum Underwriters Finance, Inc.—(guaranteed by Platinum Underwriters Holdings, Ltd.)

- “bbb” on $250 million 7.50% senior unsecured notes, due 2017

The following indicative ratings available under the shelf registration have been affirmed:

Platinum Underwriters Holdings, Ltd.—

- “bbb” on senior unsecured debt

- “bbb-” on subordinated debt

- “bb+” on preferred stock

The methodology used in determining these ratings is Best’s Credit Rating Methodology, which provides a comprehensive explanation of A.M. Best’s rating process and contains the different rating criteria employed in the rating process. Best’s Credit Rating Methodology can be found at www.ambest.com/ratings/methodology.

A.M. Best Company is the world’s oldest and most authoritative insurance rating and information source.

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