Holding(s) in Company

Weir Group PLC
16 August 2006



                               THE WEIR GROUP PLC

                                                                  16 August 2006


The Weir Group PLC (the 'Company') received notice on 16 August 2006 that, for
the purposes of Part IV of the Companies Act 1985 (as amended), Prudential plc
and all of its subsidiary companies have a notifiable interest in the issued
share capital of the Company as detailed below. Their material interest totalled
on 14 August 2006 a holding of 6,197,893 ordinary shares in the Company,
representing 3.02% of the Company's issued share capital.

Percentage holdings are calculated using an issued share capital of 204,583,341
ordinary shares of GBP0.125.


Registered Holder                                                      Holding

MAGIM HSBC GIS NOM(UK) SALI                                            149,405
PRUCLT HSBC GIS NOM(UK) PAC AC                                       5,389,488
PRUCLT HSBC GIS NOM(UK) PPL AC                                          68,069
PRUCLT HSBC GIS NOM(UK) EQBF AC                                         68,968
PRUCLT HSBC GIS NOM(UK) MNBF AC                                        108,645
PRUCLT HSBC GIS NOM(UK) PENE AC                                        413,318
                                                  Total              6,197,893



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