Holding(s) in Company

Dialight PLC 28 June 2006 NOTIFICATION OF MAJOR INTERESTS IN SHARES 1) NAME OF LISTED COMPANY DIALIGHT PLC 2) NAME OF SHAREHOLDER HAVING A MAJOR INTEREST Royal Mail Trustees Limited As limited partner in Hermes UK Small Co Fund 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 As 2 above 4) Name of the registered holder(s) and, if more than one holder, the number of shares held by each of them. Chase Nominees 4,111,495 4,111,495 5) Number of shares/amount of stock acquired. Not known 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 1.89P EACH 10) Date of transaction 23-Jun-06 11) Date listed company informed 26-Jun-06 12) Total holding following this notification 4,111,495 13) Total percentage holding of issued class following this notification 13.161% 14) Any additional information 15) Name of contact and telephone number for queries C A BUCKLEY 01480 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 .................28-Jun-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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