PTR MINERALS LTD — AGM Information 2021

Nov 25, 2021

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Petratherm Ltd ACN 106 806 884

26 November 2021

Dear Securityholder,

Notice of Meeting – Update to voting procedure

The Petratherm Ltd Annual General Meeting will be held on 29 November 2021 at 11am (Adelaide time) as a virtual meeting via Chorus Call only and physical attendance is not permitted.

The health and safety of members and personnel, and other stakeholders, is the highest priority and the Company is acutely aware of the current circumstances resulting from COVID-19. As such, the Company intends to conduct the Meeting virtually via Chorus Call. Please refer to the details below regarding how to attend and vote at the virtual meeting. Shareholders are strongly encouraged to lodge their directed proxies appointing the Chair as early as possible and in any event prior to the cut-off of proxy voting as set out in the Notice (being 11am (Adelaide time) Saturday 27 November 2021).

How to attend

The Petratherm Ltd Annual General Meeting will be held on Monday, 29 November 2021 at 11am (Adelaide time) as a virtual meeting via Chorus Call. To attend the Chorus Call meeting use this link:

https://ccmediaframe.com/?id=h47kz6SE

How to vote

Voting at the meeting

As the voting will be conducted via an online platform you will need to:

• Visit https://web.lumiagm.com to register on your smartphone tablet or computer from 30 minutes prior to the start meeting.

• Have the latest version of Chrome, Safari, Internet Explorer 11, Edge or Firefox (Please ensure your browser is compatible)

• Use meeting ID 389-800-601.

• For ‘username’ enter your full SRN/HIN

• For ‘password’ enter your postcode registered on your holding if you are an Australian shareholder. Overseas shareholders enter 3-digit ISO country code (e.g. New Zealand – NZL , United States – USA , United Kingdom – GBR and Singapore – SGP )

Petratherm Limited ACN 106 806 884 169 Fullarton Road, Dulwich SA 5065

Questions:

You are encouraged to direct questions to the Chairman by email at kadams@hlbsa.com.au so they are not received later than 27[th] of November 2021. Please use the email subject “AGM question for Chairman”. Written questions may also be asked during the meeting through the Chorus Call webcast via the question box.

Voting prior to the meeting

You may vote on the items of business to be considered at the meeting by completing a proxy form online prior to the meeting through InvestorVote.

To appoint a representative or the Chairman as your proxy, click on the link following, enter the Petratherm Ltd Annual General Meeting Control Number ‘186064’, and then your HIN/SRN and postcode/country code to gain access:

https://www.investorvote.com.au/

Proxy appointments submitted through this site must be received by 11am (Adelaide time) Saturday 27 November 2021.

If you have further enquiries, please click here https://www-au.computershare.com/Investor/contact or alternatively call the numbers below, Monday to Friday 8.30am to 8pm AEST.

Within Australia: 1300 850 505 Outside Australia: +61 3 9415 4000

Yours Faithfully

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Katelyn Adams Company Secretary Petratherm Ltd