December 2025 Quarterly Activities/Appendix 5B

• Focused on bringing outstanding periodic reports and audited financial statements up to date
• Shares remain suspended from ASX trading since December 2024
• Informal financing arrangements in place with a related entity to cover operating costs

ChemX Materials Limited (ASX: CMX) has provided its quarterly activities report for the period ended 31 December 2025. The Company has been focused on bringing its outstanding periodic reports and audited financial statements up to date, including the preparation and completion of quarterly reports, half-year accounts, and the audited annual financial statements. This work aims to ensure compliance with the Company's ASX and ASIC reporting obligations as it works towards the reinstatement of its shares on the ASX in due course. The Company's shares have remained suspended from trading on the Australian Securities Exchange (ASX) since 19 December 2024, and the Board of Directors are currently taking steps to progress a potential return to trading. During the quarter, the Company has informal financing arrangements in place with a related entity, Ovay Pty Ltd, to cover preliminary operating and business development costs. This funding has provided the necessary liquidity to support the Company's operational commitments, corporate compliance obligations, and progression of its recapitalisation and restructuring activities following the implementation of the DOCA. The Company remains focused on maintaining prudent financial management and ensuring adequate working capital to support its operational and strategic objectives.