Director Shrhldng-Amendment

Zen Research PLC
17 September 2001

The issuer has made the following amendment to the Director Shareholding
announcement released Thursday 6th September at 18:07 under RNS No 5994J.

The effective date of the grant is 10 September 2001 and not 5 September 2001 as
originally shown.

The full corrected version is shown below.
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Zen Research plc ('Zen' or the 'Company') would like to clarify the recent 
announcement regarding the grant of options to Directors of Zen. While the Board
of Directors authorised the grant of the options on 5 September 2001 at its 
regularly scheduled board meeting, the effective date of the grant in accordance
with the Company's share dealing policy is 10 September 2001, being two business
days following the end of the close period. 

                       DEALINGS BY DIRECTORS


1)  NAME OF COMPANY

ZEN RESEARCH PLC


2)  NAME OF DIRECTOR

DAVIDI GILO


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 an non-beneficial interest

AS 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. (If notified)

AS IN 2 ABOVE


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

AS IN 2 ABOVE


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

OPTION GRANT


7)  Number of shares/amount of
    stock acquired



8)   (N/A %)
    of issued Class



9)  Number of shares/amount
    of stock disposed



10)  ( N/A %)
    of issued Class



11) Class of security

ORDINARY 5P


12) Price per share



13) Date of transaction



14) Date company informed



15) Total holding following this notification



16) Total percentage holding of issued class following this notification



     IF A DIRECTOR HAS BEEN GRANTED OPTIONS BY THE COMPANY PLEASE
                    COMPLETE THE FOLLOWING BOXES

17) Date of grant

10 SEPTEMBER 2001


18) Period during which or date on which exercisable

25% IMMEDIATE; BALANCE RATABLY OVER 4 YEARS


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

NONE


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

1,000,000 ORDINARY 5P SHARES


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

14P


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


1,000,000

23) Any additional information



24) Name of contact and telephone number for queries

MARK WAY  0207 382 0470


25) Name and signature of authorised company official responsible for
    making this notification

    Date of Notification      5 SEPTEMBER 2001



                           
                        DEALINGS BY DIRECTORS


1)  NAME OF COMPANY

ZEN RESEARCH PLC


2)  NAME OF DIRECTOR

STEPHEN PEZZOLA



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 an non-beneficial interest

AS 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. (If notified)

AS IN 2 ABOVE


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

AS IN 2 ABOVE


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

OPTION GRANT


7)  Number of shares/amount of
    stock acquired



8)   (N/A %)
    of issued Class



9)  Number of shares/amount
    of stock disposed



10)  ( N/A %)
    of issued Class



11) Class of security

ORDINARY 5P


12) Price per share



13) Date of transaction



14) Date company informed



15) Total holding following this notification



16) Total percentage holding of issued class following this notification



     IF A DIRECTOR HAS BEEN GRANTED OPTIONS BY THE COMPANY PLEASE
                    COMPLETE THE FOLLOWING BOXES

17) Date of grant

10 SEPTEMBER 2001


18) Period during which or date on which exercisable

25% IMMEDIATE; BALANCE RATABLY OVER 4 YEARS


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

NONE


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

400,000 ORDINARY 5P SHARES


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

14P


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


1,889,671

23) Any additional information



24) Name of contact and telephone number for queries

MARK WAY  0207 382 0470


25) Name and signature of authorised company official responsible for
    making this notification

    Date of Notification      5 SEPTEMBER 2001
                           




                       DEALINGS BY DIRECTORS


1)  NAME OF COMPANY

ZEN RESEARCH PLC


2)  NAME OF DIRECTOR

DAVID ABER

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 an non-beneficial interest

AS 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. (If notified)

AS IN 2 ABOVE


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

AS IN 2 ABOVE


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

OPTION GRANT


7)  Number of shares/amount of
    stock acquired



8)   (N/A %)
    of issued Class



9)  Number of shares/amount
    of stock disposed



10)  ( N/A %)
    of issued Class



11) Class of security

ORDINARY 5P


12) Price per share



13) Date of transaction



14) Date company informed



15) Total holding following this notification



16) Total percentage holding of issued class following this notification



     IF A DIRECTOR HAS BEEN GRANTED OPTIONS BY THE COMPANY PLEASE
                    COMPLETE THE FOLLOWING BOXES

17) Date of grant

10 SEPTEMBER 2001


18) Period during which or date on which exercisable

25% IMMEDIATE; BALANCE RATABLY OVER 4 YEARS


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

NONE


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

400,000 ORDINARY 5P SHARES


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

14P


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


1,300,000

23) Any additional information



24) Name of contact and telephone number for queries

MARK WAY  0207 382 0470


25) Name and signature of authorised company official responsible for
    making this notification

    Date of Notification      5 SEPTEMBER 2001
                           




                       DEALINGS BY DIRECTORS


1)  NAME OF COMPANY

ZEN RESEARCH PLC


2)  NAME OF DIRECTOR

EMIKO HIGASHI


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 an non-beneficial interest

AS 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. (If notified)

AS IN 2 ABOVE


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

AS IN 2 ABOVE


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

OPTION GRANT


7)  Number of shares/amount of
    stock acquired



8)   (N/A %)
    of issued Class



9)  Number of shares/amount
    of stock disposed



10)  ( N/A %)
    of issued Class



11) Class of security

ORDINARY 5P


12) Price per share



13) Date of transaction



14) Date company informed



15) Total holding following this notification



16) Total percentage holding of issued class following this notification



     IF A DIRECTOR HAS BEEN GRANTED OPTIONS BY THE COMPANY PLEASE
                    COMPLETE THE FOLLOWING BOXES

17) Date of grant

10 SEPTEMBER 2001


18) Period during which or date on which exercisable

25% IMMEDIATE; BALANCE RATABLY OVER 4 YEARS


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

NONE


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

900,000 ORDINARY 5P SHARES


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

14P


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


1,200,000

23) Any additional information



24) Name of contact and telephone number for queries

MARK WAY  0207 382 0470


25) Name and signature of authorised company official responsible for
    making this notification

    Date of Notification      5 SEPTEMBER 2001