CHR Scor Hldg Switzerland Ltd

Converium is an independent international multi-line reinsurer known for its innovation, professionalism and service. In 2004, Converium wrote US$ 3,553 million in net reinsurance premiums. Today, the company employs about 650 people in 20 offices around the globe. The Converium's shares are listed on the SWX Swiss Exchange under the trading symbol CHRN and the New York Stock Exchange (trading symbol CHR). Converium is rated "BBB+" by Standard & Poor's and "B++" by A.M. Best. -0- *T Company: Converium Holding Ltd Headquarters Address: Baarerstrasse 8 Zug 6300 Switzerland Main Telephone: +41 44 639 9335 Website: www.converium.com Ticker: CHRN(SWX);CHR(NYSE) Type of Organization: Public Industry: Professional Services: Insurance Earnings Release Dates: 1st Quarter: March 1, 2005 2nd Quarter: August 9, 2005 3rd Quarter: May 10, 2005 4th Quarter: November 8, 2005 Key Executives: CEO: Clarke Terry G. Investor Relations Contact: Zuzana Drozd Phone: +41 44 639 9120 Email: zuzana.drozd@converium.com Public Relations Contact: Esther Gerster Phone: +41 44 639 9122 Email: esther.gerster@converium.com *T