This announcement contains inside information for the purposes of Article 7 of EU Regulation 596/2014 as retained as part of UK law by virtue of the European Union (Withdrawal) Act 2018 as amended.

Quartix Technologies plc

("Quartix", "the Group" or "the Company")

Update on FRC Review, Accounting Policy and Results Timetable

Further to the Trading Statement ("the Statement") issued on 8 January 2026, Quartix confirms that the Financial Reporting Council ("FRC") has concluded its review of the Company's accounting treatment for tracking systems and associated costs.

Subject to the FRC's review of draft disclosures, the FRC and Quartix have agreed that the Company's tracking systems should be classified as property, plant and equipment ("PPE") under IAS 16. This will result in a change in accounting policy and a prior period adjustment relating to the provision for replacement units in France and the USA. As noted in the Statement, under the previous accounting policy, profit for the year ended 31 December 2025 ("the Period") would have been ahead of market expectations*. We can now confirm that the revised accounting policy is expected to result in a moderate increase in reported profit.

Given the additional work required to finalise these adjustments and related disclosures, the Company's financial results for the Period are expected to be released by the end of March.

*Note: market expectations for the Company's results for the period, prior to this announcement, are understood to be: Revenue: £36.4m, Profit before Tax: £7.4m and FCF: £5.1m"