Holding(s) in Company

Johnson,Matthey PLC
28 February 2005


                              SCHEDULE 10

                NOTIFICATION OF MAJOR INTERESTS IN SHARES

(1)  Name of Company

JOHNSON MATTHEY PLC


(2)  Name of shareholder having a major interest

BARCLAYS PLC


(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

SHAREHOLDER NAMED IN (2) ABOVE


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

Registered Holder                                        Number of Shares

Bank of Ireland                                          30,893
Barclays Capital Nominees Limited                        134,310
Barclays Trust Co as Exec/Adm                            1,157
Barclays Trust Co R69                                    7,161
Chase Nominees Limited a/c 16376                         124,203
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 03101868                 400
Clydesdale Nominees HGB0225 a/c 00597278                 5,052
Investors Bank and Trust Co                              2,312,946
JP Morgan (BGI Custody) a/c 16331                        74,600
JP Morgan (BGI Custody) a/c 16338                        14,257
JP Morgan (BGI Custody) a/c 16341                        128,580
JP Morgan (BGI Custody) a/c 16342                        26,428
JP Morgan (BGI Custody) a/c 16400                        2,475,570
JP Morgan (BGI Custody) a/c 18408                        12,595
JP Morgan Chase Bank                                     274,860
Mellon Trust - Boston & SF                               33,125
Mitsubishi Trust International                           1,229
R C Greig Nominees Limited a/c BL1                       87,866
R C Greig Nominees Limited a/c CM1                       40,281
R C Greig Nominees Limited a/c GP1                       120,711
R C Greig Nominees Limited a/c SA1                       87,393
Reflex Nominees Limited                                  4,260
State Street                                             3,545
State Street Boston                                      210,014
Wells Fargo Seattle - Wire Ban                           3,771
Zeban Nominees Limited                                   593,153

(5)  Number of shares/amount of stock acquired

NOT DISCLOSED


(6)  Percentage of issued class

NOT DISCLOSED


(7)  Number of shares/amount of stock disposed

N/A


(8)  Percentage of issued class

N/A

(9)  Class of Security

ORDINARY £1 SHARES


(10)  Date of transaction

23 FEBRUARY 2005


(11)  Date company informed

28 FEBRUARY 2005


(12)  Total holding following this notification

6,818,837


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

3.09%


(14)  Any additional information

N/A


(15) Name of contact and telephone number for queries

ANGELA PURTILL
020 7269 8461

(16) Name of authorised company official responsible for making this
notification

ANGELA PURTILL


Date of notification:  28 FEBRUARY 2005



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