Holding(s) in Company

Byotrol PLC
22 March 2007



TR-1(i): NOTIFICATION OF MAJOR INTERESTS IN SHARES





1.      Identity of the issuer or the underlying issuer of existing shares to
which voting rights are attached (ii):



Byotrol plc



2.      Reason for the notification (please state Yes/No): (    )



An acquisition or disposal of voting rights: (No)



An acquisition or disposal of financial instruments which may result in the
acquisition of shares already issued to which voting rights are attached: (No)



An event changing the breakdown of voting rights: (No)



Other (please specify): (Yes)  Initial notification under transparency directive



3.      Full name of person(s) subject to the notification obligation (iii):



Glasgow Investment Managers Limited



4.      Full name of shareholder(s) (if different from 3.) (iv):



Shire Smaller Companies plc

Glasgow Integrated Pension Scheme Exempt Fund



5.      Date of the transaction (and date on which the threshold is crossed or
reached if different) (v):



16 March 2007



6.      Date on which issuer notified:



16 March 2007



7.      Threshold(s) that is/are crossed or reached:



5%




8.      Notified details:



A:   Voting rights attached to shares


Class/type of shares if possible           Situation previous to the Triggering transaction (vi)
using the ISIN CODE
                                  Number of shares                   Number of voting Rights (viii)


GB00B0999995                      2,325,535                          2,325,535



Resulting situation after the triggering transaction (vii)


Class/type of shares if         Number of shares         Number of voting rights (ix)   % of voting rights
possible using the ISIN CODE
                                Direct                   Direct (x)     Indirect (xi)   Direct    Indirect


GB00B0999995                    2,325,535                2,325,535      N/A             5.34%     N/A



B:   Financial Instruments

Resulting situation after the triggering transaction (xii)


Type of         Expiration Date     Exercise/Conversion       Number of voting rights     % of voting rights
financial       (xiii)              Period/ Date (xiv)        that may be acquired if the
instrument                                                    instrument is exercised/
                                                              converted.


N/A



Total (A+B)


Number of voting rights           % of voting rights

2,325,535                         5.34%



9.      Chain of controlled undertakings through which the voting rights and/or
the financial instruments are effectively held, if applicable (xv):


Name of Company/Fund                           No. of shares                     % of issued share
                                                                                           capital

Shires Smaller Companies plc                   2,000,000                                     4.59%
Glasgow Integrated Pension Scheme Exempt fund

                                               325,535                                       0.75%

Total                                          2,325,535                                     5.34%



Proxy Voting:



10.    Name of the proxy holder:



N/A



11.    Number of voting rights proxy holder will cease to hold:



N/A



12.    Date on which proxy holder will cease to hold voting rights:



N/A



13.    Additional information:



N/A



14.    Contact name:



Kirsty Hussain



15.    Contact telephone number:



0141 572 2700



Annex to Notification Of Major Interests In Shares (xvi)



A:     Identity of the person or legal entity subject to the notification
obligation:



Full name (including legal form for legal entities):

Glasgow Investment Managers Limited



Contact address (registered office for legal entities):

Sutherland House, 49 St Vincent Street, Glasgow G2 5DR



Phone number:

0141 572 5700



Other useful information (at least legal representative for legal persons):

.................




B:     Identity of the notifier, if applicable (xvii)



Full name:

Glasgow Investment Managers Limited



Contact address:

Sutherland House, 49 St Vincent Street, Glasgow G2 5DR



Phone number:

0141 572 5700



Other useful information (e.g. functional relationship with the person or legal
entity subject to the notification obligation):

.................



C: Additional information:

.................


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