NH3 CLEAN ENERGY LIMITED — Proxy Solicitation & Information Statement 2022

Oct 27, 2022

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28 October 2022

ANNUAL GENERAL MEETING – NOTICE AND PROXY FORM

Dear Shareholder

Hexagon Energy Materials Limited (ASX: HXG) (“Hexagon” or the “Company”) is convening its Annual General Meeting (Meeting) to be held at the office of BDO, Level 9, Mia Yellagonga Tower 2, 5 Spring Street, Perth, Western Australia on Wednesday, 30 November 2022 at 9.00 am (AWST).

In accordance with section 110D of the Corporations Act 2001 (Cth) (as inserted by the Corporations Amendment (Meeting and Documents) Act 2022 (Cth)), the Company will not be dispatching physical copies of the Notice of Annual General Meeting (Notice), except to those who have requested one. Instead, a copy of the Notice, which was released to the ASX on 28 October 2022, can be viewed on the ASX Market Announcements Platform and under the “ASX Announcements” section of Hexagon’s website at https://hxgenergymaterials.com.au.

The Board has made the decision that the Meeting will be held physically with appropriate measures in place to comply with Federal and State COVID-19 restrictions regarding gatherings. If you attend the Meeting in person, you will be required to adhere to COVID-19 protocols in place at the time of the Meeting.

Shareholders are encouraged to submit a proxy vote either online at https://investor.automic.com.au/#/loginsah, or by returning the personalised proxy form (enclosed) in accordance with the instructions set out on the proxy form. Your proxy voting instruction must be received by 9.00 am (AWST) on 28 November 2022, being not less than 48 hours before the commencement of the Meeting. Any proxy voting instructions received after that time will not be valid for the Meeting.

Circumstances relating to COVID-19 may change rapidly. The Company will update Shareholders if changing circumstances will impact planning or the arrangements for the Meeting by way of announcement on the ASX and the details will also be made available on our website at https://hxgenergymaterials.com.au.

The Notice is important and should be read in its entirety. If you are in doubt as to the course of action you should follow, you should consult your financial adviser, lawyer, accountant, stockbroker or other professional adviser. If you have any difficulties obtaining a copy of the Notice of Meeting, please contact the Company’s share registry Automic Pty Limited on 1300 288 664 (within Australia) or +61 2 9698 5414 (outside Australia) or Hexagon’s Company Secretary on +61 8 6244 0349.

The Company appreciates the understanding of shareholders during this time.

Yours sincerely,

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Charles Whitfield Chairman

HEXAGON ENERGY MATERIALS LIMITED

Australian Business Number (ABN) 27 099 098 192 Registered Office: Level 2, 35 Outram Street, West Perth, Western Australia 6005 t: (+61 8) 6244 0349 e: info@hxgenergymaterials.com w: hxgenergymaterials.com