Holding(s) in 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: Thomas Cook 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:

Omers Administration Corporation (Omers)

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

5. Date of the transaction (and date on which the threshold is crossed or reached if different): Date of transaction: 21 September 2011

Settlement date: 26 September 2011

6. Date on which issuer notified: 23 September 2011

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

Below 3%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares: GB00B1VYCH82

Situation previous to the Triggering transaction

§ Number of shares: 27,617,996

§ Number of voting rights: 27,617,996

Resulting situation after the triggering transaction

§ Number of shares direct: Below 3%

§ Number of voting rights direct: Below 3%

§ Number of voting rights indirect: N/A

§ Percentage of voting rights direct: Below 3%

§ Percentage of voting rights indirect: N/A

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

§ Type of financial instrument: N/A

§ Expiration Date: N/A

§ Exercise/Conversion period: N/A

§ Number of voting rights that may be acquired if the instrument is exercised/ converted: N/A

§ Percentage of voting rights: N/A

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

§ Type of financial instrument: N/A

§ Exercise Price: N/A

§ Expiration Date: N/A

§ Exercise/Conversion period: N/A

§ Number of voting rights instrument refers to: N/A

§ Percentage of voting rights Nominal: N/A

§ Percentage of voting rights Delta: N/A

Total (A+B+C) Number of voting rights: Below 3%

Percentage of voting rights: Below 3%

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

N/A

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: Notification using the total voting rights figure of 874,990,495

14. Contact name: Nancy Ross

15. Contact telephone number: 01-416-814-6536

Name of authorised company official responsible for making this notification:

Derek Woodward

Group Company Secretary

Tel: 020 7557 6415