Holding(s) in Company

Alumasc Group PLC
13 September 2004



                           SCHEDULE 10
 
             NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF COMPANY

THE ALUMASC GROUP PLC

2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

PLATINUM INVESTMENT TRUST PLC

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

AS ABOVE

4)   Name of the registered holder(s) and, if more than one holder, the 
     number of shares held by each of them.

AS ABOVE

5)   Number of shares/amount of stock acquired.



6)   Percentage of issued Class


7)   Number of shares/amount of stock disposed

250,000

8)   Percentage of issued Class

0.72%

9)   Class of security

ORD 12.5P

10)  Date of transaction

09.09.2004

11)  Date company informed

13.09.2004

12)  Total holding following this notification

1,359,472
               
13)  Total percentage holding of issued class following this notification

3.90%

14)  Any additional information



15)  Name of contact and telephone number for queries

PATRICIA KINGDON
01536 383844


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

     Date of Notification ...........13/09/04.............






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