Holding(s) in Company

Morgan Crucible Co PLC
24 May 2006

                                 SCHEDULE 10


                   NOTIFICATION OF MAJOR INTERESTS IN SHARES




1)            Name of company:

The Morgan Crucible Company plc



2)            Name of shareholder having a major interest:

AEGON UK plc Group of Companies



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:

Beneficial interest of shareholder named in 2.



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

Citibank Nominees Limited 9,752,578




5)            Number of shares/amount of stock acquired:

1,180,564



6)            Percentage of issued class:

0.402



7)            Number of shares/amount of stock disposed:

N/A



8)            Percentage of issued class:

N/A



9)            Class of Security:

Ordinary shares of 25p



10)        Date of Transaction:

22/5/06



11)        Date company informed:

Faxed letter dated 23/5/06 received 23/5/06



12)        Total holding following this notification:

9,752,578 shares



13)            Total percentage holding of issued class following this
notification:

3.324%





14)        Any additional information

N/A



15)        Name of contact and telephone number for queries:

Mr D.J. Coker, Company Secretary tel. [phone]



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

Mr D.J. Coker



17)        Date of notification:

24th May 2006



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