RNS Number:0458T
Aggregate Industries PLC
9 December 2003




                           SCHEDULE 10
 
             NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF COMPANY

     AGGREGATE INDUSTRIES PLC

2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

     ARNHOLD AND S BLEICHROEDER ADVISERS, LLC

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

      SHAREHOLDER NAMED 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.

      SEE BELOW

5)   Number of shares/amount of stock acquired.

     NOT ADVISED

6)   Percentage of issued Class

     NOT ADVISED

7)   Number of shares/amount of stock disposed
       -

8)   Percentage of issued Class
       -

9)   Class of security

      ORDINARY 25P SHARES

10)  Date of transaction

      5 DEC 2003

11)  Date company informed

       9 DECEMBER

12)  Total holding following this notification

      39,254,513
               
13)  Total percentage holding of issued class following this notification

      3.06%

14)  Any additional information



15)  Name of contact and telephone number for queries

      MRS MARY FORD,
      01530 816615

16)  Name and signature of authorised company official responsible for 
     making this notification

     Date of Notification ..9 DECEMBER 2003.....

April 2002                                                 Schedule 10

Registered Holders of the Shares managed by ASBA on 5 December 2003 are listed 
below:

Arnhold and S. Bleichroeder Diversified International Equity Fund     1,122,823
City of Hartford Municpal Employees' Retirement Fund                    201,687
Ewing Marion Kauffman Foundation                                        407,501
First Eagle Overseas Fund                                            20,000,000
First Eagle Overseas Variable Fund                                    1,000,000
First Eagle Global Fund                                               6,500,000
Genesee County Employees' Retirement System                             200,000
MacAuthur Foundation Trust                                              605,625
Raytheon Pension Fund                                                   500,000
Schlumberger, Limited                                                   200,000
SoGen International SICAV                                             7,000,000
United Food and Commercial Workers, Union                               709,376
Utah Retirement Systmes                                                 807,501



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

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