Mondi plc
  (Incorporated in England and Wales)
  (Registered number: 6209386)
  LEI: 213800LOZA69QFDC9N34
  LSE share code: MNDI      ISIN: GB00BMWC6P49
  JSE share code: MNP

  19 September 2024

  Notification of Major Interests in Shares

1. Issuer Details:

    ISIN: GB00BMWC6P49

    Issuer Name: Mondi plc

    UK or Non-UK Issuer: UK

2. Reason for notification:

    An acquisition or disposal of voting rights

3. Details of person subject to the notification obligation:

    Name: Allan Gray Proprietary Limited

    City of registered office: Cape Town

    Country of registered office: South Africa

4. Details of the shareholder:

    Full name of shareholder(s) if different from the persons(s) subject to the
    notification obligation, above: N/A

    City of registered office: N/A

    Country of registered office: N/A

5. Date on which the threshold was crossed or reached:

    18-Sep-2024

6. Date on which Issuer notified:

    19-Sep-2024
        7. Total positions of person(s) subject to the notification obligation:

                           % of voting rights         % of voting rights   Total of both in % Total number of
                          attached to shares           through financial      (8.A + 8.B)     voting rights held
                             (total of 8. A)          instruments (total                      in issuer
                                                       of 8.B 1 + 8.B 2)

Resulting situation
on the date on
which threshold was             6.006200                 0.000000             6.006200              26,512,115
crossed or reached

Position of previous
notification (if                5.998100                 0.000000             5.998100
applicable)


        8. Notified details of the resulting situation on the date on which the threshold was
              crossed or reached:

        A: Voting rights attached to shares
Class/type of          No. of voting rights                       % of voting rights
shares
ISIN code (if          Direct              Indirect               Direct                 Indirect
possible)              (DTR5.1)            (DTR5.2.1)             (DTR5.1)               (DTR5.2.1)


GB00BMWC6P49           26,512,115          0                      6.006200               0.000000

Subtotal 8.A           26,512,115                                 6.006200%




        B1: Financial Instruments according to (DTR5.3.1.1 (a))

Type of financial       Expiration      Exercise/ Conversion         Number of voting rights        % of voting
instrument              date            Period                       that may be acquired if        rights
                                                                     the instrument is
                                                                     exercised/ converted.
                                         Subtotal 8.B 1


       B2: Financial Instruments with similar economic effect according to (DTR5.3.1R.(1)
         (b))

Type of           Expiration       Exercise/         Physical or cash       Number of             % of voting
financial         date             Conversion        settlement             voting rights         rights
instrument                         Period


                                                     Subtotal 8.B 2


       9. Information in relation to the person subject to the notification obligation:

              1. Person subject to the notification obligation is not controlled by any natural
              person or legal entity and does not control any other undertaking(s) holding
              directly or indirectly an interest in the (underlying) issuer.

             Ultimate controlling Name of           % of voting % of voting Total of both if
                   person         controlled        rights if it   rights through it equals or is
                                  undertaking       equals or is financial         higher than the
                                                    higher than instruments if notifiable
                                                    the notifiable it equals or is threshold
                                                    threshold      higher than
                                                                   the notifiable
                                                                   threshold


       10. In case of proxy voting:

              Name of the proxy holder: N/A

              The number and % of voting rights held: N/A

              The date until which the voting rights will be held: N/A

       11. Additional information:

              The ordinary shares acquired are held by Allan Gray's clients, as opposed to by
              Allan Gray itself.

       12. Date of completion:

             19-Sep-2024
 13. Place of completion:

     Cape Town, South Africa

Sponsor in South Africa: Merrill Lynch South Africa (Pty) Ltd t/s BofA Securities