Holding(s) in Company

Adventis Group PLC
01 December 2006


                    NOTIFICATION OF MAJOR INTERESTS IN SHARES
                                        
1. Name of company

ADVENTIS GROUP PLC

2. Name of shareholder having a major interest

OCEANWOOD GLOBAL OPPORTUNITIES MASTER FUND

3. Please state whether notification indicates that it is regarding the holding
   of the shareholder named in 2 above; or in respect of a non-beneficial
   interest; or in the case of an individual holder if it is a holding of that
   person's spouse or children under the age of 18

BENEFICIAL

4. Name of the registered holder (s) and, if more than one holder, the number of
    shares held by each of them

AS IN (2)

5. Number of shares/amount of stock acquired

1,382,000

6. Percentage of issued class

3.61%

7. Number of shares / amount of stock disposed

NONE

8. Percentage of issued class

N/A

9. Class of security

ORDINARY £0.0025

10. Date of transaction

30th November 2006

11. Date listed company informed

30th November 2006

12. Total holding following this notification

1,382,000

Total percentage holding of issued class following this notification

3.61%

13. Any additional information

14. Name of contact and telephone number for queries

PETER LINNELL, Tel: [phone]

15. Name and signature of duly authorised officer of the listed company
    responsible for making this notification

PETER LINNELL

Date of notification

30th November 2006




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