Holding(s) in Company

Johnson Matthey PLC
01 August 2005

NOTIFICATION OF MAJOR INTERESTS IN SHARES




1.            Name of listed company:


              Johnson Matthey PLC


2.            Name of shareholder with a major interest:


              Barclays PLC


3.            Please state whether notification indicates that it is regarding the holding of the
              shareholder named in 2 above; 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:


              In respect of the shareholder named in 2 above


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


              Barclays Trust Co As Exec/ADM                                         15
              Barclays Trust Co E99                                                260
              Barclays Trust Co R69                                              7,161
              Chase Nominees Limited a/c 16376                                 120,488
              Clydesdale Nominees HGB0125 a/c 00692386                           1,627
              Clydesdale Nominees HGB0125 a/c 00693269                           3,000
              Clydesdale Nominees HGB0125 a/c 00697663                           3,200
              Clydesdale Nominees HGB0125 a/c 01200114                           2,650
              Clydesdale Nominees HGB0125 a/c 00597278                           5,052
              Gerrard Nominees Limited a/c ER1                                  52,774
              Greig Middleton Nominees Limited a/c GM1                         157,101
              Greig Middleton Nominees Limited a/c GM3                          25,300
              Investors Bank and Trust Co.                                   1,992,539
              JP Morgan (BGI Custody) a/c 16331                                 69,196
              JP Morgan (BGI Custody) a/c 16338                                 12,964
              JP Morgan (BGI Custody) a/c 16341                                120,704
              JP Morgan (BGI Custody) a/c 16342                                 26,428
              JP Morgan (BGI Custody) a/c 16400                              2,365,308
              JP Morgan (BGI Custody) a/c 18408                                  9,050
              JP Morgan Chase Bank                                             317,318
              Mellon Trust - Boston & SF                                        29,962
              Mitsubishi Trust International                                     1,442
              R C Greig Nominees Limited a/c RC1                             1,088,314
              R C Greig Nominees Limited a/c AK1                               393,420
              R C Greig Nominees Limited a/c BL1                                95,641
              R C Greig Nominees Limited a/c CM1                                56,204
              R C Greig Nominees Limited a/c GP1                               114,522
              R C Greig Nominees Limited a/c SA1                                88,687
              Reflex Nominees Limited                                            4,260
              State Street                                                       3,734
              State Street Boston                                              160,281
              Zeban Nominees Limited                                           534,980


5.            Number of shares/amount of stock acquired:


              Not known


6.            Percentage of issued class (any treasury shares held by the listed company should not be
              taken into account when calculating percentage):


              Not known


7.            Number of shares/amount of stock disposed:


              N/A


8.            Percentage of issued class (any treasury shares held by the listed company should not be
              taken into account when calculating percentage):


              N/A


9.            Class of security:


              Ordinary Shares of £1 each


10.           Date of transaction:


              Not known


11.           Date listed company informed:


              1 August 2005


12.           Total holding following this notification:


              7,863,582


13.           Total percentage holding of issued class following this notification (any treasury shares
              held by the listed company should not be taken into account when calculating percentage):


              3.58%


14.           Any additional information:


              N/A


15.           Name of contact and telephone number for queries:


              Angela Purtill 020 7269 8461


16.           Name and signature of duly authorised officer of the listed company responsible for making
              this notification:


              Angela Purtill









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