Stmnt re BPB PLC - Addendum

Compagnie de Saint-Gobain
22 July 2005



For immediate release                                         22 July 2005


Dealing Disclosure Requirements:

Under the provisions of Rule 8.3 of the City Code on Takeovers and Mergers (the
'City Code'), any person who, alone or acting together with any other person(s)
pursuant to an agreement or understanding (whether formal or informal) to
acquire or control relevant securities of BPB plc, owns or controls, or becomes
the owner or controller, directly or indirectly, of one per cent. or more of any
class of securities of BPB plc is required to disclose, by not later than 12.00
noon (London time) on the London business day following the date of the relevant
transaction, dealings in such securities of that company (or in any option in
respect of, or derivative referenced to, any such securities) during the period
to the date on which the offer becomes or is declared unconditional as to
acceptances or lapses or is otherwise withdrawn.

Under the provisions of Rule 8.1 of the City Code, all dealings in relevant
securities of BPB plc by Saint-Gobain or BPB plc, or by any of their respective
'associates' (within the meaning of the City Code) must also be disclosed.

If you are in any doubt as to the application of Rule 8 to you, please contact
an independent financial adviser authorised under the Financial Services and
Markets Act 2000, consult the Panel's website at www.thetakeoverpanel.org.uk or
contact the Panel on telephone number [phone]; fax [phone].'


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