RNS Number:5730O
AEA Technology PLC
12 August 2003

                    BLOCKLISTING SIX MONTHLY REVIEW


1. NAME OF COMPANY:

AEA TECHNOLOGY PLC


2. NAME OF SCHEME:

AEA TECHNOLOGY PLC EMPLOYEE SHARE SCHEMES (UK)


3. PERIOD OF RETURN:     FROM:  7/2/03          TO:   6/8/03



4. NUMBER AND CLASS OF SHARES(S)
   (AMOUNT OF STOCK/DEBT SECURITY)
   NOT ISSUED UNDER SCHEME
   AT END OF THE LAST PERIOD:                       724,610



5. NUMBER OF SHARES ISSUED/ALLOTTED
   UNDER SCHEME DURING PERIOD:                      578



6. BALANCE UNDER SCHEME NOT YET ISSUED/ALLOTTED 
   AT END OF PERIOD:                                724,032



7. NUMBER AND CLASS OF SHARE(S) 
   (AMOUNT OF STOCK/DEBT SECURITIES) 
   ORIGINALLY LISTED AND THE DATE OF ADMISSION:     731,250     7/8/02


PLEASE CONFIRM TOTAL NUMBER OF SHARES IN ISSUE AT THE END OF THE PERIOD
IN ORDER FOR US TO UPDATE OUR RECORDS.              67,483,052

CONTACT FOR QUERIES

NAME:              K RUSSELL
TELEPHONE:         01235 433195



                    BLOCKLISTING SIX MONTHLY REVIEW


1. NAME OF COMPANY:

AEA TECHNOLOGY PLC


2. NAME OF SCHEME:

AEA TECHNOLOGY EMPLOYEE SHARE PLANS (OVERSEAS)


3. PERIOD OF RETURN:     FROM:    7/2/03        TO:   6/8/03



4. NUMBER AND CLASS OF SHARES(S)
   (AMOUNT OF STOCK/DEBT SECURITY)
   NOT ISSUED UNDER SCHEME
   AT END OF THE LAST PERIOD:                   50,000



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



6. BALANCE UNDER SCHEME NOT YET ISSUED/ALLOTTED 
   AT END OF PERIOD:                            50,000



7. NUMBER AND CLASS OF SHARE(S) 
   (AMOUNT OF STOCK/DEBT SECURITIES) 
   ORIGINALLY LISTED AND THE DATE OF ADMISSION: 50,000     7/8/02


PLEASE CONFIRM TOTAL NUMBER OF SHARES IN ISSUE AT THE END OF THE PERIOD
IN ORDER FOR US TO UPDATE OUR RECORDS.          67,483,052

CONTACT FOR QUERIES

NAME:        K RUSSELL
TELEPHONE:   01235 433195



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

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