RNS Number:6478O
Chorion PLC
13 August 2003


                                  Chorion plc


                            Substantial Shareholder


Chorion plc ("Chorion" or the "Company") was informed today by UBS Global Asset
Management Life Ltd that it has an interest in 30,379,127 ordinary shares of 1p
each in the Company ("Ordinary Shares"), representing 5.87% of the issued
Ordinary Share capital. The above shares are registered in the name of Phildrew
Nominees Limited.

13 August, 2003






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