Director/PDMR Shareholding

Cookson Group PLC
03 August 2006


                                  SCHEDULE 11

     NOTIFICATION OF INTERESTS OF DIRECTORS/PERSONS DISCHARGING MANAGERIAL
                    RESPONSIBILITY AND/OR CONNECTED PERSONS

1) Name of the issuer

COOKSON GROUP PLC


2) State whether the notification related to:

i. a transaction notified in accordance with DR 3.1.4R(1)(a); or with

ii. DR 3.1.4 (R)(1)(b) a disclosure made in accordance with section 324 (as
extended by section 328) of the Companies Act 1985; or

iii. Both (i) and (ii)

III


3) Name of person discharging managerial responsibilities/director

NICHOLAS ROBIN SALMON


4) State whether notification relates to a person connected with a person
discharging managerial responsibilities/director named in 3 and identify the
connected person

IN RESPECT OF DIRECTOR NAMED IN (3) ABOVE, NICHOLAS ROBIN SALMON


5) Indicate whether the notification is in respect of a holding of the person
referred to in 3 or 4 above or in respect of a non-beneficial interest

IN RESPECT OF DIRECTOR NAMED IN (3) ABOVE, NICHOLAS ROBIN SALMON


6) Description of shares (including class), debentures or derivatives or
financial instrument relating to shares

ORDINARY 10p SHARES


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

NICHOLAS ROBIN SALMON


8) State the nature of the transaction

PURCHASE OF ORDINARY SHARES


9) Number of shares, debentures or financial instruments relating to shares
acquired

1,964 ORDINARY 10p SHARES


10)Percentage of issued class acquired

0.001%


11)Number of shares, debentures or financial instruments relating to shares
disposed

N/A


12)Percentage of issued class disposed

N/A


13)Price per share or value of transaction

509 PENCE PER SHARE


14)Date and place of transaction

2 AUGUST 2006, LONDON


15)Total holding following notification and total percentage holding following
notification

54,422 SHARES, 0.03%


16)Date issuer informed of transaction

2 AUGUST 2006


If a person discharging managerial responsibilities has been granted options by
the issuer complete the following boxes


17) Date of grant



18) Period during which or date on which it can be exercised



19) Total amount paid (if any) for grant of the option



20) Description of shares or debentures involved (class and number)



21) Exercise price (if fixed at time of grant) or indication that price is
to be fixed at the time of exercise



22) Total number of shares or debentures over which options held following
notification



23) Any additional information



24) Name of contact and telephone number for queries

Rachel Fell, Deputy Secretary, 020 7822 0062


Name of duly authorised officer/official of issuer responsible for making
notification

Rachel Fell, Deputy Secretary


Date of notification

3 August 2006



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