Rule 8.1 - MORGAN CRUCIBLE CO

FORM 8.3 DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE (Rule 8.3 of the City Code on Takeovers and Mergers) 1. KEY INFORMATION Name of person dealing (Note BARCLAYS PLC 1) Company dealt in MORGAN CRUCIBLE CO Class of relevant security ORD GBP 0.25 to which the dealings being disclosed relate (Note 2) Date of dealing 16 August 2006 2. INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE (a) Interests and short positions (following dealing) in the class of relevant security dealt in (Note 3) Long Short Number (%) Number (%) (1) Relevant 7,385,132 2.52% 66,167 0.02% securities (2) Derivatives 66,167 0.02% 463,275 0.16% (other than options) (3) Options and 0 0.00% 0 0.00% agreements to purchase/sell Total 7,451,299 2.54% 529,442 0.18% (b) Interests and short positions in relevant securities of the company, other than the class dealt in (Note 3) Class of relevant security: Long Short Number (%) Number (%) (1) Relevant securities (2) Derivatives (other than options) (3) Options and agreements to purchase/sell Total (c) Rights to subscribe (Note 3) Class of relevant security: Details 3. DEALINGS (Note 4) (a) Purchases and sales Purchase/sale Number of securities Price per unit (GBP) Purchase 8,182 2.6626 Purchase 40,300 2.6831 Purchase 8,369 2.6740 Sale 7,659 2.6863 Sale 21,400 2.7077 Sale 8,893 2.6686 (b) Derivatives transactions (other than options) Product Long/short Number of securities Price per unit CFD Short 8893 2.6686 CFD Short 7659 2.6862 CFD Short 21400 2.7076 CFD Long 8182 2.6626 CFD Long 8369 2.6740 CFD Long 40300 2.6831 (c) Options transactions in respect of existing securities (i) Writing, selling, purchasing or varying Product name, Writing, Number of Exercise Type, e.g. Expiry Option money e.g. call selling, securities to price American, date paid/received option purchasing, which the option European etc. per unit (GBP) varying etc. relates (GBP) (ii) Exercising Product name, e.g. call Number of securities Exercise price per unit option (Note 5) (d) Other dealings (including new securities) (Note 4) Nature of transaction Details Price per unit (if (Note 8) applicable) (Note 5) 4. OTHER INFORMATION Agreements, arrangements or understandings relating to options or derivatives Full details of any agreement, arrangement or understanding between the person disclosing and any other person relating to the voting rights of any relevant securities under any option referred to on this form or relating to the voting rights or future acquisition or disposal of any relevant securities to which any derivative referred to on this form is referenced. If none, this should be stated. Is a Supplemental Form 8 attached? (Note 9) NO Date of disclosure 17 August 2006 Contact name BARCLAYS COMPLIANCE Telephone number 020 7166 2913 If a connected EFM, name of offeree/offeror with which connected If a connected EFM, state nature of connection (Note 10)

Companies

Barclays (BARC)
UK 100

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