June 2026 Quarterly Activities/Appendix 5B

• ChemX Materials Ltd reported its quarterly activities for the period ended 30 June 2026
• The company remained focused on maintaining working capital for property opportunities
• Paul Bernasconi was appointed as a non-executive director on 21 May 2026
• The company is up to date with its financial reporting obligations
• The company's shares remain suspended from trading on the ASX

ChemX Materials Ltd provided its quarterly activities report for the period ended 30 June 2026. The company remained focused on maintaining adequate working capital to develop and test recapitalisation and restructuring models to take advantage of property acquisition and development opportunities. On 21 May 2026, the company announced the appointment of Mr Paul Bernasconi as a non-executive director. The company is pleased to advise that it is now up to date with its financial reporting obligations under the ASX Listing Rules and the Corporations Act. During the quarter, the company prepared and lodged its quarterly reports for the period ended 31 March 2026, and has commenced preparation of its annual financial statements for the year ended 30 June 2026. The company's shares remained in suspension from trading on the Australian Securities Exchange (ASX) for the duration of the quarter and, as at the date of this report, remain suspended from trading since 19 December 2024.

ChemX Materials Ltd has $645k in unused financing facilities available, providing an estimated 3.2 quarters of funding.

ChemX Materials Ltd continues to progress plans for a potential return to trading of the Company's shares on the ASX.