Holding(s) in Company

Diagonal PLC 17 August 2004 SCHEDULE 10 NOTIFICATION OF MAJOR INTERESTS IN SHARES 1) NAME OF COMPANY DIAGONAL PLC 2) NAME OF SHAREHOLDER HAVING A MAJOR INTEREST GOLDMAN SACHS GROUP INC 3) Please state whether notification indicates that it is in respect of holding of the Shareholder named in 2 above or in respect of a non-beneficial interest or in the case of an individual holder if it is a holding of that person's spouse or children under the age of 18 SEE 2 ABOVE 4) Name of the registered holder(s) and, if more than one holder, the number of shares held by each of them. 5) Number of shares/amount of stock acquired. 6) Percentage of issued Class 7) Number of shares/amount of stock disposed 8) Percentage of issued Class 9) Class of security ORDINARY SHARES OF 10P EACH 10) Date of transaction 11) Date company informed 16 AUGUST 2004 12) Total holding following this notification 4,392,490 13) Total percentage holding of issued class following this notification 4.8% 14) Any additional information 15) Name of contact and telephone number for queries IAN FARRELLY 01252 733 711 16) Name and signature of authorised company official responsible for making this notification Date of Notification 17TH AUGUST 2004 This information is provided by RNS The company news service from the London Stock Exchange

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