Notifiable Interests

microgen

Information Management Solutions

www.microgen.co.uk

20 May 2003

Microgen plc

Notifiable Interests

The Company was notified today, that under Sections 198-202 of the Companies
Act 1985, Schroder Investment Management Limited is interested in 9,629,856
Ordinary Shares representing 16.49% of the issued share capital.

The shares are registered in the name of:

No. of shares

Schroder Unit Trusts Limited (SUTL) 7,226,979

British Coal Staff Superannuation a/c: P 1,155,080

Mineworkers' Pension Scheme a/c: R 87,871

Imperial Pensions Nominees Limited 659,926

Nortrust Nominees Ltd 500,000

If you require further information please contact:

G.E. Liddle, Company Secretary [phone]