Syndicate at Lloyd's

Catlin Group Limited
1 June 2005


                    CATLIN GROUP ISSUES QUARTERLY FORECASTS
                        FOR CATLIN SYNDICATE AT LLOYD'S

HAMILTON, Bermuda - Catlin Group Limited ('CGL': London Stock Exchange), the
international specialist property and casualty insurer and reinsurer, has today
issued forecasts relating to the open 2003 and 2004 years of account of the
Catlin Syndicate (Syndicate 2003), which is managed by Catlin Underwriting
Agencies Limited.

The forecasts, which are set out below, are expressed as a percentage of
capacity based on figures as at 31 March 2005:

Year of           Capacity                 Current                    Previous
Account            (£m)                   Forecast                    Forecast
                                               (%)                         (%)
     2003         £500.0             13.7% - 18.7%               13.7% - 18.7%
     2004         £500.0              8.8% - 13.8%                 No previous
                                                                      forecast

The forecast for the 2004 year of account is the first forecast issued for this
open year and should be treated as preliminary as a considerable amount of
business written in the 2004 year of account remains on risk.

Catlin Group Limited provided 100% of the capacity of the Catlin Syndicate for
both 2003 and 2004.

                                    - ends -

For more information contact:

Media Relations:
James Burcke, Head of Communications,    Tel:      [phone]
                                         Mobile:   [phone]
                                         Email:    [e-mail]
                                         
Investor Relations:
William Spurgin, 
Head of Investor Relations,              Tel:      [phone]
                                         Mobile:   [phone]
                                         E-mail:   [e-mail]

Notes to editors:

1. The Catlin Group, headquartered in Bermuda, is an international specialist
   property/casualty insurer and reinsurer writing more than 30 classes
   of business worldwide. Catlin wrote gross premiums of US$1.43 billion and
   reported record net income of US$154.1 million in 2004. Catlin shares are 
   traded on the London Stock Exchange (ticker symbol: 'CGL').

2. The Catlin Group operates three underwriting platforms:

   • The Catlin Syndicate at Lloyd's (Syndicate 2003). The Catlin Syndicate
     is the eighth largest syndicate at Lloyd's based on 2005 premium capacity
     of £500 million. It is a recognised leader of numerous classes of specialty
     insurance and reinsurance.

   • Catlin Bermuda (Catlin Insurance Company Ltd.). Catlin Bermuda began
     underwriting in 2002 and writes property treaty and casualty treaty
     reinsurance and property and casualty insurance for US risks on a surplus
     lines basis.

   • Catlin UK (Catlin Insurance Company (UK) Ltd.). Catlin UK specialises in
     writing commercial property, general liability, professional indemnity,
     directors' and officers' liability and commercial crime insurance for UK
     clients. It also writes other classes of business written by the Catlin
     Syndicate.


   All three Catlin Group underwriting platforms have been assigned 'A' 
   (Excellent) financial strength ratings by A.M. Best Company.

   The Catlin Group also operates subsidiaries located in Houston and New 
   Orleans in the US, as well as in the UK, Canada, Germany, Belgium, 
   Singapore, Malaysia and Australia. These subsidiaries allow Catlin to 
   work more closely with local clients and their brokers.

3.        The Catlin Group's website can be found at www.catlin.com.



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