Polymetal International plc — Proxy Solicitation & Information Statement 2022

Sep 22, 2022

MR A SAMPLE < DESIGNATION> SAMPLE STREET SAMPLE TOWN SAMPLE CITY SAMPLE COUNTY AA11 1AA

Attendance Card

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Additional Holders: ADDITIONAL HOLDER 1 ADDITIONAL HOLDER 2 ADDITIONAL HOLDER 3 ADDITIONAL HOLDER 4 Please bring this card with you to the Meeting and present it at Shareholder registration/accreditation.

The Chair of Polymetal International plc invites you to attend the General Meeting of the Company to be held at etc.venues Fenchurch Street, 8 Fenchurch Pl, EC3M 4PB, London, UK on 12 October 2022 at 10.00 am.

Shareholder Reference Number

C0000000000

Please detach this portion before posting this proxy form.

Form of Proxy - General Meeting to be held on 12 October 2022

Register today and make a positive impact by electing for electronic communications & manage your holding online!

To be effective, all proxy appointments must be lodged with the Company's Registrars at: Computershare Investor Services (Jersey) Limited c/o The Pavilions, Bridgwater Road, Bristol BS99 6ZY by 10 October 2022 at 10.00 am.

Explanatory Notes:

• 1. Every holder has the right to appoint some other person(s) of their choice, who need not be a shareholder, as his proxy to exercise all or any of his rights, to attend, speak and vote on their behalf at the meeting. If you wish to appoint a person other than the Chair, please insert the name of your chosen proxy holder in the space provided (see reverse). If the proxy is being appointed in relation to less than your full voting entitlement, please enter in the box next to the proxy holder's name (see reverse) the number of shares in relation to which they are authorised to act as your proxy. If returned without an indication as to how the proxy shall vote on any particular matter, the proxy will exercise his discretion as to whether, and if so how, he votes (or if this proxy form has been issued in respect of a designated account for a shareholder, the proxy will exercise his discretion as to whether, and if so how, he votes)
• 2. To appoint more than one proxy, an additional proxy form(s) may be obtained by contacting the Registrar's helpline on 0370 707 4040 or you may photocopy this form. Please indicate in the box next to the proxy holder's name (see reverse) the number of shares in relation to which they are authorised to act as your proxy. Please also indicate by marking the box provided if the proxy instruction is one of multiple instructions being given. All forms must be signed and should be returned together in the same envelope.
• 3. The 'Vote Withheld' option overleaf is provided to enable you to abstain on any particular resolution. However, it should be noted that a 'Vote Withheld' is not a vote in law and will not be counted in the calculation of the proportion of the votes 'For' and 'Against' a resolution.
• 4. Pursuant to Article 40 of the Companies (Uncertificated Securities) (Jersey) Order 1999, entitlement to attend and vote at the meeting and the number of votes which may be cast thereat will be determined by reference to the Register of Members of the Company at close of business on the day which is two days before the day of the meeting. Changes to entries on the Register of Members after that time shall be disregarded in determining the rights of any person to attend and vote at the meeting.
• 5. This proxy form must be signed by the shareholder or his/her attorney. Where the shareholder is a corporation, the proxy form must be executed under its common seal or signed by a duly authorised representative of the corporation, stating their capacity (e.g. director, secretary). In the case of joint shareholders, any one shareholder may sign this proxy form. The vote of the senior joint shareholder (whether in person or by proxy) will be taken to the exclusion of all others, seniority being determined by the order in which the names stand in the Register of

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Kindly Note: This form is issued only to the addressee(s) and is specific to the unique designated account printed hereon. This personalised form is not transferable between different: (i) account holders; or (ii) uniquely designated accounts. The Company and Computershare Investor Services PLC accept no liability for any instruction that does not comply with these conditions.

Members of the Company in respect of the joint holding. To be valid, this proxy form (together with any power of attorney or other authority under which it is signed or a certified copy of such power or authority) must be sent or delivered to the Registrars, no later than 10.00am (BST) on 10 October 2022.

• 6. To appoint one or more proxies or to give an instruction to a proxy (whether previously appointed or otherwise) via the CREST system, CREST messages must be received by the issuer's agent (ID number 3RA50) by 10.00 am on 10 October 2022. For this purpose, the time of receipt will be taken to be the time (as determined by the timestamp generated by the CREST system) from which the issuer's agent is able to retrieve the message. The Company may treat as invalid a proxy appointment sent by CREST in the circumstances set out in Companies (Uncertificated Securities) (Jersey) Order 1999.
• 7. The above is how your address appears on the Register of Members. If this information is incorrect please ring the Registrar's helpline on 0370 707 4040 to request a change of address form or go to www.investorcentre.co.uk to use the online Investor Centre service.
• 8. Any alterations made to this form should be initialled.
• 9. The completion and return of this form will not preclude a member from attending the meeting and voting in person.
• 10. For the 2022 GM, the Company is enabling shareholders to attend by electronic means via a live web-cast. Shareholders will be able to ask questions at the web-cast, however they will not be regarded as present at the Meeting and will not be entitled to vote at the Meeting. Access details will be available at www.polymetalinternational.com. A recording will be available on the Company's web-site shortly after the Meeting for those who were unable to attend.

MR A SAMPLE < Designation> Additional Holder 1 Additional Holder 2 Additional Holder 3 Additional Holder 4

Poll Card To be completed only at the Meeting if a Poll is called.

Special Resolutions For Against 1. THAT, pursuant to Article 57(2) of the Companies (Jersey) Law 1991 (the "Companies Law"), the purchase by the Company of up to 70,570,310 Ordinary Shares otherwise than on a stock exchange be sanctioned (the "Buyback")

Ordinary Resolutions

2. THAT, pursuant to Article 57 (3) of the Compnaies Law, conditional on the passing of Resolution 1, the form and terms of the buyback agreement appended to the notice of General Meeting and to be entered into between the Company and certain shareholders in connection with the Buyback be approved.

3. THAT the Company be and is hereby authorised for the purposes of Article 58A of the Companies Law to hold any Ordinary Shares purchased by the Company pursuant to the Buyback as treasury shares.

Signature

In the case of a Corporation, a letter of representation will be required (in accordance with S323 of the Companies Act 2006) unless this has already been lodged at registration.

Form of Proxy

Please complete this box only if you wish to appoint a third party proxy other than the Chair. Please leave this box blank if you want to select the Chair. Do not insert your own name(s).

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&

I/We hereby appoint the Chair of the Meeting OR the person indicated in the box above as my/our proxy to attend, speak and vote in respect of my/our full voting entitlement* on my/our behalf at the General Meeting of Polymetal International plc to be held at etc.venues Fenchurch Street, 8 Fenchurch Pl, EC3M 4PB, London, UK on 12 October 2022 at 10.00 am, and at any adjourned meeting.

* For the appointment of more than one proxy, please refer to Explanatory Note 2 (see front).

Please mark here to indicate that this proxy appointment is one of multiple appointments being made.

Please use a black pen. Mark with an X
inside the box as shown in this example.

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Vote Withheld

1.	Special Resolutions THAT, pursuant to Article 57(2) of the Companies (Jersey) Law 1991 (the "Companies Law"), the purchase by the Company of up to 70,570,310 Ordinary Shares otherwise than on a stock exchange be sanctioned (the "Buyback")	For	Against	Vote Withheld
2.	Ordinary Resolutions THAT, pursuant to Article 57 (3) of the Compnaies Law, conditional on the passing of Resolution 1, the form and terms of the buyback agreement appended to the notice of General Meeting and to be entered into between the Company and certain shareholders in connection with the Buyback be approved.

3.	THAT the Company be and is hereby authorised for the purposes of Article 58A of the Companies Law to hold any Ordinary
	Shares purchased by the Company pursuant to the Buyback as treasury shares.

I/We instruct my/our proxy as indicated on this form. Unless otherwise instructed the proxy may vote as he or she sees fit or abstain in relation to any business of the meeting.

Signature Date

In the case of a corporation, this proxy must be given under its common seal or be signed on its behalf by an attorney or officer duly authorised, stating their capacity (e.g. director, secretary).

156H 61 JMOP