Mondi plc
  (Incorporated in England and Wales)
  (Registered number: 6209386)
  LEI: 213800LOZA69QFDC9N34
  LSE share code: MNDI      ISIN: GB00B1CRLC47
  JSE share code: MNP

  6 March 2023

  Notification of Major Interests in Shares

1. Issuer Details:

    ISIN: GB00B1CRLC47

    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:

    2 March 2023

6. Date on which Issuer notified:

    6 March 2023
        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      6.008360                           0.000000                6.008360             29,173,827
which threshold was
crossed or reached

Position of previous
notification (if         5.012100                      0.000000                5.012100             N/A
applicable)


        8. Notified details of the resulting situation on the date 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)


GB00B1CRLC47           29,173,827              N/A                    6.008360                N/A

Subtotal 8.A           29,173,827                                     6.008360


        B1: Financial Instruments according to (DTR5.3.1R (1) (a))

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

            N/A                   N/A            N/A                     N/A                    N/A
                                      Subtotal 8.B 1


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

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


   N/A           N/A            N/A            N/A                 N/A             N/A

                                               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.

                                   % of voting         % of voting rights
                                   rights if it        through financial     Total of both if it
   Ultimate       Name of
                                   equals or is        instruments if it     equals or is higher
   controlling    controlled
                                   higher than         equals or is higher   than the notifiable
   person         undertaking
                                   the notifiable      than the notifiable   threshold
                                   threshold           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:
     6 March 2023


 13. Place of completion:

     Cape Town, South Africa


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