Holding(s) in Company

Dialight PLC 11 December 2006 NOTIFICATION OF MAJOR INTERESTS IN SHARES 1) NAME OF LISTED COMPANY DIALIGHT PLC 2) NAME OF SHAREHOLDER HAVING A MAJOR INTEREST ABERFORTH PARTNERSHIP LLP 3) Please state whether notification indicates that it is regarding the holding of the shareholder named in 2 above; 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 3,980,573 THE CHURCH COMMISSIONERS FOR ENGLAND (CHAS 298,800 BANK OF IRELAND NOMINEES LTD 206,175 STATE STREET NOMINEES LTD A/C JD59 410,307 TOTAL 4,895,855 5) Number of shares/amount of stock acquired. 6) Percentage of issued Class (any treasury shares held by the listed 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 listed 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 listed company informed 08-DEC-06 12) Total holding following this notification 4,895,855 13) Total percentage holding of issued class following this notification (any treasury shares held by the listed company should not be taken into account when calculating percentage) 15.67% 14) Any additional information 15) Name of contact and telephone number for queries C A BUCKLEY 1480 447490 16) Name and signature of duly authorised officer of the listed company responsible for making this notification C A BUCKLEY COMPANY SECRETARY Date of Notification ... 11-DEC-06 ..................... This information is provided by RNS The company news service from the London Stock Exchange SAFSMSESE

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Dialight (DIA)
UK 100

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