Notifiable Interests

microgen

Information Management Solutions

www.microgen.co.uk

18 August 2003

Microgen plc

Notifiable Interests

The Company was notified on 15 August 2003, that under Sections 198-202 of the
Companies Act 1985, Schroder Investment Management Limited is interested in
12,035,200 Ordinary Shares representing 20.61% of the issued share capital.

The shares are registered or to be registered in the name of:

No. of shares

Chase Nominees Limited TOTAL 6,387,905

Schroder Nominees

British Coal Staff Superannuation a/c: P 2,617,105

Mineworkers' Pension Scheme a/c: R 2,530,190

Nortrust Nominees Ltd 500,000

TOTAL 5,647,295

If you require further information please contact:

G.E. Liddle, Company Secretary [phone]