Chorion PLC 01 April 2005 Chorion plc ("the Company") Additional Listing Application has been made for 86,565 ordinary shares of 30 pence each in the Company ("Ordinary Shares") to be admitted to AIM. The Ordinary Shares are being issued pursuant to the exercise of options by certain employees. Admission is expected to become effective on 6 April 2005. 1 April 2005 This information is provided by RNS The company news service from the London Stock Exchange