Debt Rating

Catlin Group Limited
09 July 2007


                      CATLIN REACTS TO A.M. BEST'S RATING                       
                  OF CATLIN US INSURANCE COMPANY SUBSIDIARIES                   
                                                                                

HAMILTON, Bermuda - Catlin Group Limited ('CGL': London Stock Exchange), the
international specialty property/casualty insurer and reinsurer, welcomes the
announcement by A.M. Best Company on Friday to assign a financial strength
rating of 'A' (Excellent) to Catlin Insurance Company Inc. and upgrade the
financial strength rating of Catlin Specialty Insurance Company Inc to 'A'
(Excellent) from 'A-'.

Both companies are part of Catlin US, the Catlin Group's US-based underwriting
platform.

Stephen Catlin, chief executive of Catlin Group Limited, said:

'I am delighted that the two Catlin US insurance companies have received 'A'
financial strength ratings from A.M. Best. The ratings demonstrate the excellent
financial security that Catlin US and the rest of the Catlin Group offer to our
clients worldwide. A.M. Best's affirmation of the companies' financial strength
is a key step in the continuing development of Catlin US.'

In its announcement, A.M. Best said the ratings 'reflect the solid risk-adjusted
capitalization of both companies,' although A.M. Best also noted that the
outlook for the ratings is negative due to the current negative outlook assigned
to Catlin Insurance Company Ltd. of Bermuda (Catlin Bermuda), the parent of both
US insurers.

                                    - ends -                                    

For more information contact:

Media Relations:                                                                

James Burcke,                            Tel:    [phone]            
Head of Communications, London           Mobile: [phone]            
                                         E-mail: [e-mail]        
                                                                                
Liz Morley, Maitland                     Tel:    [phone]            
                                         E-mail: [e-mail]         
                                                                                
Investor Relations:                                                             

William Spurgin,                         Tel:    [phone]            
Head of Investor Relations, London       Mobile: [phone]            
                                         E-mail: [e-mail]     


Notes to editors:

1. Catlin Group Limited, headquartered in Bermuda, is an international 
specialist property/casualty insurer and reinsurer writing more than 30 classes
of business worldwide through four underwriting platforms and an international 
network of offices. Catlin shares are traded on the London Stock Exchange 
(ticker symbol: CGL). More information about Catlin can be found at
www.catlin.com.

2. On 18 December 2006, Catlin's offer to acquire Wellington Underwriting plc 
was declared unconditional. Combined, Catlin and Wellington underwrote gross 
premiums of US$2.7 billion during 2006 and produced net income of 
US$428.5 million. At 31 December 2006, Catlin's total assets amounted to
US$8.8 billion and stockholders' equity amounted to US$2.0 billion.

3. Catlin's four underwriting platforms are:

•  The Catlin Syndicate at Lloyd's of London (Syndicate 2003) is a
   recognised leader of numerous classes of specialty insurance and reinsurance.
   The Catlin Syndicate is the largest at Lloyd's in 2007 based on premium 
   capacity of £1.25 billion.

•  Catlin Bermuda (Catlin Insurance Company Ltd.), which is a leading 
   participant in the Bermuda market, underwriting a diversified portfolio of
   property treaty, casualty treaty, political risk and terrorism, and 
   structured risk coverages.

•  Catlin UK (Catlin Insurance Company (UK) Ltd.), which specialises in
   underwriting commercial non-life insurance for UK clients through a network 
   of regional offices. It also writes other classes of business written by the
   Catlin Syndicate.

•  Catlin US, which encompasses Catlin's operations based in the United States. 
   Catlin US underwrites a wide variety of specialty property/casualty insurance
   and reinsurance products from a network of more than 15 offices throughout 
   the U.S.

4. Catlin's international network of offices allows the Group to diversify 
further its risk portfolio and to work more closely with local policyholders 
and brokers. Besides its offices in the UK, US and Bermuda, Catlin operates 
offices in Canada, Australia, Singapore, Malaysia, Hong Kong, China, Guernsey, 
Germany, Belgium, France, Spain, Switzerland and Austria.



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            The company news service from the London Stock Exchange