Blocklisting Interim Review

Dialight PLC
20 November 2007
                    BLOCKLISTING SIX MONTHLY REVIEW


1. NAME OF COMPANY:                     DIALIGHT PLC



2. NAME OF SCHEME:                      BLOCKLISTING



3. PERIOD OF RETURN:                    FROM: 22-MAY-07     TO:  20-NOV-07



4. NUMBER AND CLASS OF SHARE(S)         UK           UK SHARE     TOTAL
   (AMOUNT OF STOCK/DEBT SECURITY)      SHARESAVE    OPTION
   NOT ISSUED UNDER SCHEME
   AT END OF THE LAST PERIOD:           21,041       1,459        22,500



5. NUMBER OF SHARES ISSUED    Allotted                   0             0
   /ALLOTTED UNDER SCHEME     Issued                     0             0
   DURING PERIOD:



6. BALANCE UNDER SCHEME NOT YET 
   ISSUED/ALLOTTED 
   AT END OF PERIOD:                    21,041       1,459        22,500



7. NUMBER AND CLASS OF SHARE(S)        895,028 SHARES BLOCKLISTED ON 14 SEP 2005
   (AMOUNT OF STOCK/DEBT SECURITIES)   150,000 SHARES BLOCKLISTED ON 24 MAY 1994
   ORIGINALLY LISTED AND THE DATE      175,000 SHARES BLOCKLISTED ON 24 JAN 1996
   OF ADMISSION:                       370,000 SHARES BLOCKLISTED ON 12 MAY 1999
                                       275,000 SHARES BLOCKLISTED ON 11 APR 2001


PLEASE CONFIRM TOTAL NUMBER OF SHARES IN ISSUE AT THE END OF THE PERIOD
IN ORDER FOR US TO UPDATE OUR RECORDS.

31,239,501 ORDINARY SHARES

CONTACT FOR QUERIES

NAME:              C A BUCKLEY
TELEPHONE:         [phone]


END


                      
                      This information is provided by RNS
            The company news service from the London Stock Exchange