Platinum Underwriters Holdings, Ltd. Declares Quarterly Dividend on Common Shares

HAMILTON, Bermuda, July 25 /PRNewswire-FirstCall/ -- Platinum Underwriters Holdings, Ltd. (NYSE: PTP) announced today that the Board of Directors has declared a quarterly dividend of $0.08 per common share. The dividend is payable on September 28, 2007 to shareholders of record on September 4, 2007.

About Platinum

Platinum Underwriters Holdings, Ltd. (NYSE: PTP) is a leading provider of property, casualty and finite risk reinsurance coverages, through reinsurance intermediaries, to a diverse clientele on a worldwide basis. Platinum operates through its principal subsidiaries in Bermuda and the United States. The Company has a financial strength rating of A (Excellent) from A.M. Best Company, Inc. For further information, please visit Platinum's website at http://www.platinumre.com/.