RNS Number:0122J
Oystertec PLC
21 March 2003

                                  SCHEDULE 11

          NOTIFICATION OF INTERESTS OF DIRECTORS AND CONNECTED PERSONS


1)       Name of company
         Oystertec Plc


2)       Name of director
         Mr Roger McDowell (non executive)


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 or in respect of a non-beneficial interest
         As above


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


5)       Please state whether notification relates to a person(s) connected with the Director named in 2 above and
         identify the connected person(s)
         N/A


6)       Please state the nature of the transaction. For PEP transactions please indicate whether general/single co PEP
         and if discretionary/non discretionary
         N/A


7)       Number of shares/amount of stock acquired
         200,000 shares


8)       Percentage of issued class
         0.08%


9)       Number of shares/amount of stock disposed
         N/A


10)      Percentage of issued class
         N/A


11)      Class of security
         Ordinary shares


12)      Price per share
         14.75p


13)      Date of transaction
         20th March 2003


14)      Date company informed
         20th March 2003


15)      Total holding following this notification
         200,000 shares


16)      Total percentage holding of issued class following this notification
         0.08%


If a director has been granted options by the company please complete the following boxes



17)      Date of grant



18)      Period during which or date on which exercisable



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



20)      Description of shares or debentures involved: class, number



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



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



23)      Any additional information



24)      Name of contact and telephone number for queries
         Mr Adrian Binney 01430 872361


25)      Name and signature of authorised company official responsible for making this notification
         Adrian Binney Finance Director


Date of Notification 21st March 2003



                      This information is provided by RNS
            The company news service from the London Stock Exchange
END
RDSILFESVRIIFIV