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:

Invesco Ltd

4. Full name of shareholder(s):

5. Date of the transaction (and date on which the threshold is crossed or reached if different): 30 May 2012

6. Date on which issuer notified: 31 May 2012

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

14%

8. Notified details:

    A:     Voting rights attached to shares

            Class/type of shares: GB00B1VYCH82

Situation previous to the Triggering transaction

§ Number of shares: 118,230,354

§ Number of voting rights: 118,230,354

Resulting situation after the triggering transaction

§ Number of shares direct: N/A

§ Number of voting rights direct: N/A

§ Number of voting rights indirect: 125,471,371

§ Percentage of voting rights direct: N/A

§ Percentage of voting rights indirect: 14.34%

    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: 125,471,371

                                    Percentage of voting rights: 14.34%

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

Invesco Asset Management Limited - 64,237,107

Invesco Asset Management Japan Limited - 187,641

Invesco Asset Management Ltd & Invesco Asset Management Japan Ltd - 7,857,638

Invesco Fund Managers Limited - 52,194,985

Invesco GT Management S.A - 338,624

Invesco PowerShares Capital Management Ireland - 525,644

Invesco PowerShares Capital Management LLC - 129,732

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:

14. Contact name: Zoë Richards

15. Contact telephone number: 01491 417249

Name of authorised company official responsible for making this notification:

Derek Woodward

Group Company Secretary

Tel: 020 7557 6415