Holding(s) in Company

Oxford Catalysts Group PLC
16 April 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):

Oxford Catalysts Group PLC


Sedol B11SZ26


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


An acquisition or disposal of voting rights: (Yes)


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) : (N/A)


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

1 Lansdowne Partners Limited being the General Partner of Lansdowne Partners
Limited Partnership


2 Lansdowne UK Equity Fund Limited


3 Lansdowne Partners International Limited


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

Mortsan Nominees Ltd

(Registered Shareholder)


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

10 April 2007


6. Date on which issuer notified:

12 April 2007


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

9%


8. Notified details:


A: Voting rights attached to shares

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

Ordinary Shares                            3,278,609                 3,278,609



Resulting situation after the triggering transaction (vii)

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

                                 Direct     Direct  Indirect     Direct Indirect
                                            (x)     (xi)

                                        0       0    3,674,586    0.0%    9.84%


B: Financial Instruments

Resulting situation after the triggering transaction (xii)

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







Total (A+B)
Number of voting rights                      % of voting rights

                                 
3,674,586                                9.84%


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

Lansdowne Partners International Limited is the parent undertaking of Lansdowne
Partners Limited.


Proxy Voting:


10. Name of the proxy holder:

Lansdowne Partners Limited


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

-


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

-


13. Additional information:

1 Lansdowne Partners Limited being the General Partner of Lansdowne Partners
Limited Partnership ('LPLP') controls 3,674,586 voting rights representing 9.84%


2 Lansdowne UK Equity Fund Limited owns 3,505,700 voting rights representing
9.39%


The balancing 0.45% of shares is held on behalf of other client funds managed by
LPLP.


14. Contact name:

Paul Fieldhouse


15. Contact telephone number:

[phone]


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):

1 Landowne Partners Limited being the General Partner of Lansdowne Partners
Limited Partnership


2 Lansdowne UK Equity Fund Limited


3 Lansdowne Partners International Limited


Contact address (registered office for legal entities):

15 Davies Street, London W1K 3AG


Phone number:

[phone]


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

-


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


Full name:

-


Contact address:

-


Phone number:

-


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

-


C: Additional information :

1 Lansdowne Partners Limited being the General Partner of Lansdowne Partners
Limited Partnership ('LPLP') controls 3,674,586 voting rights representing 9.84%


2 Lansdowne UK Equity Fund Limited owns 3,505,700 voting rights representing
9.39%


The balancing 0.45% of shares is held of behalf of other client funds managed by
LPLP.



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