Holding(s) in Company

Omega Diagnostics Group PLC
10 January 2008

                  Omega Diagnostics Group PLC ('the Company')

                              Notifiable Interest



A form TR-1 containing the following information has been received by the
Company.

TR-1 notification of major interests in shares

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

Omega Diagnostics Group PLC

2. Reason for the notification

An acquisition or disposal of voting rights

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

Singer & Friedlander Investment Management Ltd

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

Sinjul Nominees Ltd

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

7th January 2008

6. Date on which issuer notified:

8th January 2008

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

14%

8. Notified details:

2,034,333

A: Voting rights attached to shares
Class/type of     Situation previous to Resulting situation after the triggering transaction
shares            Triggering
                  transaction           Notification required under DTR transitional provision 7
if possible using
ISIN CODE
                  Number of  Number of  Number of    Number of voting rights % of voting rights
                  Shares     Voting     shares
                             Rights

                                        Direct       Direct     Indirect     Direct     Indirect


ORD SHARES        2,084,333  2,084,333  2,034,333    NA         2,034,333               13.68%

B: Financial Instruments
Resulting situation after the triggering transaction


Type of financial Expiration date     Exercise/           Number of voting       % of voting rights
instrument                            Conversion Period/  rights that may be
                                      Date                acquired if the
                                                          instrument is
                                                          exercised/ converted


    NA                NA                  NA                   NA                    NA

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


2,034,333                                            13.68%



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

N/A

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:

Richard Easton

15. Contact telephone number:

0203 205 6620



Appendix A

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

Name: Singer & Friedlander Investment Management Ltd

Address: One Hanover Street, London W1S 1AX

Phone number: 020 3205 6620






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