RNS Number:4036L
Keryx Biopharmaceuticals Inc
21 May 2003


The following is a replacement of an announcement that was released this morning
21 May 2003 at 7.00am under RNS reference No. 3555L.

The first paragraph of the previous announcement was incorrect as it stated that
shares were sold by the trust of Dr Rosenwald's minor children, when it was in
fact a sale of 1,000,000 shares by Dr Rosenwald to the trust of his minor
children. All other details remain unchanged.


Keryx Biopharmaceuticals, Inc ("the Company")

The Company was notified on May 20, 2003, that on the 15 May 2003, 1,000,000
shares of common stock held by Lindsay A Rosenwald were sold by him to a trust
for the benefit of his minor children. Dr Rosenwald does not act as a trustee of
this trust. The sale was effected at the price of $1.36 per share in an
off-market transaction.

Following this transaction Dr. Rosenwald has a direct interest in 3,015,123
shares and an indirect interest in 2,568,787 shares (inclusive of the 1,000,000
shares sold to the trust) representing 26.8% of the issued share capital of the
Company.

20 May 2003

Contact:

Mr Bob Trachtenberg

General Counsel, Keryx Biopharmaceuticals, Inc.

Tel: 00 972 2541 3500


                      This information is provided by RNS
            The company news service from the London Stock Exchange
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