Holding(s) in Company

Dialight PLC 19 May 2006 SCHEDULE 10 NOTIFICATION OF MAJOR INTERESTS IN SHARES 1) NAME OF COMPANY DIALIGHT PLC 2) NAME OF SHAREHOLDER HAVING A MAJOR INTEREST ABERFORTH PARTNERS 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 IN RESPECT OF SHAREHOLDERS IN 2) ABOVE 4) Name of the registered holder(s) and, if more than one holder, the number of shares held by each of them. NORTRUST NOMINEES A/C ABERFRTH 7,324,115 THE CHURCH COMMISSIONERS FOR ENGLAND (C) 296,500 BANK OF IRELAND NOMINEES LTD 198,175 STATE STREET NOMINEES LTD A/C JD59 337,307 TOTAL 8,156,097 5) Number of shares/amount of stock acquired. 6) Percentage of issued Class (any treasury shares held by the company should not be taken into account when calculating percentage) 7) Number of shares/amount of stock disposed Not known 8) Percentage of issued Class (any treasury shares held by the company should not be taken into account when calculating percentage) 9) Class of security ORDINARY SHARES OF 1.89P EACH 10) Date of transaction NOT KNOWN 11) Date company informed 19-May-06 12) Total holding following this notification 8,156,097 13) Total percentage holding of issued class following this notification (any treasury shares held by the company should not be taken into account when calculating percentage) 26.11% 14) Any additional information 15) Name of contact and telephone number for queries C A BUCKLEY 1480 447490 16) Name and signature of authorised company official responsible for making this notification C A BUCKLEY COMPANY SECRETARY Date of Notification ........... 19-May-06 This information is provided by RNS The company news service from the London Stock Exchange

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Dialight (DIA)
UK 100

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