Mondi plc Incorporated in England and Wales Registered number: 6209386 LEI: 213800LOZA69QFDC9N34 LSE share code: MNDI ISIN: GB00BMWC6P49 JSE share code: MNP 22 February 2024 FORM 8 (OPD) PUBLIC OPENING POSITION DISCLOSURE BY A PARTY TO AN OFFER Rules 8.1 and 8.2 of the Takeover Code (the “Code”) 1. KEY INFORMATION (a) Full name of discloser: Mondi plc (b) Owner or controller of interests and short N/A positions disclosed, if different from 1(a): The naming of nominee or vehicle companies is insufficient. For a trust, the trustee(s), settlor and beneficiaries must be named. (c) Name of offeror/offeree in relation to whose Mondi plc relevant securities this form relates: Use a separate form for each offeror/offeree (d) Is the discloser the offeror or the offeree? OFFEROR (e) Date position held: 22 February 2024 The latest practicable date prior to the disclosure (f) In addition to the company in 1(c) above, is the No discloser making disclosures in respect of any other party to the offer? If it is a cash offer or possible cash offer, state “N/A” 2. POSITIONS OF THE PARTY TO THE OFFER MAKING THE DISCLOSURE If there are positions or rights to subscribe to disclose in more than one class of relevant securities of the offeror or offeree named in 1(c), copy table 2(a) or (b) (as appropriate) for each additional class of relevant security. (a) Interests and short positions in the relevant securities of the offeror or offeree to which the disclosure relates Class of relevant security: Ordinary shares in Mondi plc Interests Short positions Number % Number % (1) Relevant securities owned Nil - Nil - and/or controlled: (2) Cash-settled derivatives: Nil - Nil - (3) Stock-settled derivatives Nil - Nil - (including options) and agreements to purchase/sell: Nil - Nil - TOTAL: 2 All interests and all short positions should be disclosed. Details of any open stock-settled derivative positions (including traded options), or agreements to purchase or sell relevant securities, should be given on a Supplemental Form 8 (Open Positions). Details of any securities borrowing and lending positions or financial collateral arrangements should be disclosed on a Supplemental Form 8 (SBL). (b) Rights to subscribe for new securities Class of relevant security in relation to N/A which subscription right exists: Details, including nature of the rights N/A concerned and relevant percentages: 3. POSITIONS OF PERSONS ACTING IN CONCERT WITH THE PARTY TO THE OFFER MAKING THE DISCLOSURE Details of any interests, short positions and rights to subscribe (including directors’ and other employee options) of any person acting in concert with the party to the offer making the disclosure: (A) Interests in Mondi plc ordinary shares held by the directors of Mondi plc and their close relatives and related trusts Mondi plc Director Number of relevant %1 securities owned and/or controlled Philip Yea 25,000 0.00 Andrew King 191,7842 0.04 Michael Powell 36,5723 0.00 Svein Richard Brandtzaeg 1,136 0.00 Susan Clark 3,845 0.00 Saki Macozoma 400 0.00 Dominique Reiniche 909 0.00 Angela Strank 817 0.00 Stephen Young 1,841 0.00 (B) Interests under the Mondi plc share plans held by the directors of Mondi plc Mondi plc Director Number Grant Date Vesting Expiry Exercise of Date4 Date5 Price relevant securities Andrew King 18,970 12/03/21 29 On or Nil cost 1 Rounded down to two decimal places. 2 The total of which includes 6,942 shares held in the trust for Mondi plc’s Share Incentive Plan on behalf of Andrew King. There are no dealing discretions in respect of such shares. 3 The total of which includes 654 shares held in the trust for Mondi plc’s Share Incentive Plan on behalf of Michael Powell. There are no dealing discretions in respect of such shares. 4 Mondi plc’s established practice is that Vesting Dates fall as soon as is practicable following the announcement of Mondi plc’s preliminary results each year, and therefore the dates vary depending on when results are announced. 5 Expiry Dates flow from the relevant Vesting Dates, and therefore vary depending on when Mondi plc’s preliminary results are announced. Expiry Dates generally occur 12 months after the relevant Vesting Dates, but Mondi plc retains discretion to extend such periods in accordance with the relevant plan rules. 3 (BSP) February around 2024 29 February 2025 128,675 12/03/21 29 On or Nil cost (LTIP) February around 2024 29 February 2025 64,849 10/03/22 On or On or Nil cost (BSP) around around 10 March 10 March 2025 2026 170,389 10/03/22 On or On or Nil cost (LTIP) around around 10 March 10 March 2025 2026 63,779 06/03/23 On or On or Nil cost (BSP) around 6 around 6 March March 2026 2027 175,110 06/03/23 On or On or Nil cost (LTIP) around 6 around 6 March March 2026 2027 Michael Powell 2,038 12/03/21 29 On or Nil cost (BSP) February around 2024 29 February 2025 74,916 12/03/21 29 On or Nil cost (LTIP) February around 2024 29 February 2025 37,607 10/03/22 On or On or Nil cost (BSP) around around 10 March 10 March 2025 2026 99,201 10/03/22 On or On or Nil cost (LTIP) around around 10 March 10 March 2025 2026 37,761 06/03/23 On or On or Nil cost (BSP) around 6 around 6 March March 2026 2027 101,947 06/03/23 On or On or Nil cost (LTIP) around 6 around 6 March March 2026 2027 Details of any open stock-settled derivative positions (including traded options), or agreements to purchase or sell relevant securities, should be given on a Supplemental Form 8 (Open Positions). Details of any securities borrowing and lending positions or financial collateral arrangements should be disclosed on a Supplemental Form 8 (SBL). 4 4. OTHER INFORMATION (a) Indemnity and other dealing arrangements Details of any indemnity or option arrangement, or any agreement or understanding, formal or informal, relating to relevant securities which may be an inducement to deal or refrain from dealing entered into by the party to the offer making the disclosure or any person acting in concert with it: Irrevocable commitments and letters of intent should not be included. If there are no such agreements, arrangements or understandings, state “none” None (b) Agreements, arrangements or understandings relating to options or derivatives Details of any agreement, arrangement or understanding, formal or informal, between the party to the offer making the disclosure, or any person acting in concert with it, and any other person relating to: (i) the voting rights of any relevant securities under any option; or (ii) the voting rights or future acquisition or disposal of any relevant securities to which any derivative is referenced: If there are no such agreements, arrangements or understandings, state “none” None (c) Attachments Are any Supplemental Forms attached? Supplemental Form 8 (Open Positions) NO Supplemental Form 8 (SBL) NO Date of disclosure: 22 February 2024 Contact name: Jenny Hampshire Telephone number: +44 1932 826368 Public disclosures under Rule 8 of the Code must be made to a Regulatory Information Service. The Panel’s Market Surveillance Unit is available for consultation in relation to the Code’s disclosure requirements on +44 (0)20 7638 0129. The Code can be viewed on the Panel’s website at www.thetakeoverpanel.org.uk. Sponsor in South Africa: Merrill Lynch South Africa Proprietary Limited t/a BofA Securities.