Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

1. Identity of the issuer or the underlying issuerof existing shares to which voting rights areattached: ii

CONVATEC GROUP PLC

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

ü

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

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

NORDIC CAPITAL VI LIMITED

NORDIC CAPITAL VII LIMITED

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

CIDRON HEALTHCARE TOPCO LIMITED

CIDRON HEALTHCARE CO-INVEST LIMITED

CIDRON HEALTHCARE CO-INVEST II LIMITED

5. Date of the transaction and date onwhich the threshold is crossed orreached: v

8 JUNE 2017

6. Date on which issuer notified:

9 JUNE 2017

7. Threshold(s) that is/are crossed orreached: vi, vii

Below 8%

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type ofshares

if possible usingthe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

ORDINARY SHARES OF £0.10 EACH

314,158,828

314,158,828

143,158,828

N/A

143,158,828

N/A

7.34%

GB00BD3VFW73

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/Conversion Period xiv

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

% of votingrights

N/A

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financialinstrument

Exercise price

Expiration date xvii

Exercise/Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

N/A

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

143,158,828

7.34%

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

Nordic Capital VI Limited is the General Partner of Nordic Capital VI Alpha, L.P. and Nordic Capital VI Beta, L.P. (Fund VI) and is responsible for managing Fund VI.

Nordic Capital VII Limited is the General Partner of Nordic Capital VII Alpha, L.P. and Nordic Capital VII Beta, L.P. (Fund VII) and is responsible for managing Fund VII.

Fund VI and Fund VII hold shares in Cidron Healthcare Topco Limited (Topco). Topco in turn holds one management share in each of Cidron Healthcare Co-invest Limited and Cidron Healthcare Co-invest II Limited.

Proxy Voting:

10. Name of the proxy holder:

N/A

11. Number of voting rights proxy holder will ceaseto hold:

N/A

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

N/A

13. Additional information:

This disclosure has been calculated based on an issued share capital of 1,951,472,651 shares as disclosed by ConvaTec Group Plc in its AGM results announcement dated 11 May 2017.

14. Contact name:

LYNDA ELLIOTT

15. Contact telephone number:

+ 44 1534 605105