IMDEX LIMITED — Share Issue/Capital Change 2026

Mar 4, 2026

IMDEX LIMITED | ABN 78 008 947 813

216 Balcatta Rd, Balcatta WA 6021 Australia PO Box 1262, Osborne Park WA 6916 Australia +61 8 9445 4010 imdexlimited.com

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5 March 2026

Company Announcements Office ASX Limited Exchange Centre 20 Bridge Street SYDNEY NSW 2001

Dear Sir / Madam,

Issue of Shares to Devico KMPs

IMDEX Limited (“IMDEX”) advises that on 2 March 2026 it issued 1,516,838 fully paid ordinary shares to certain key management personnel (“KMP”) of Devico AS in accordance with reinvestment arrangements established under the Share Purchase Agreement (“SPA”) between IMDEX and Devico AS.

As disclosed in IMDEX’s announcement dated 19 January 2023 and the accompanying Investor Presentation (refer slide 7), certain Devico KMPs entered into commitments as part of the transaction under which they agreed to reinvest approximately 30% of their exit proceeds into newly issued IMDEX shares.

Under the reinvestment agreements, additional KMP reinvestment shares were subject to time based and performance based vesting conditions. Following completion of the relevant performance period and final assessment of the applicable criteria, the relevant awards vested and the associated shares were issued.

The shares were acquired by IMDEX on market and allocated in accordance with the Devico transaction arrangements.

The Appendix 3G lodged on 2 March 2026 has been withdrawn and the matters to which it relates are addressed in this announcement.

There remains a small number of Devico KMPs that have alternate performance periods linked to their reinvestment agreements. Accordingly, the final assessment of performance criteria and the subsequent vesting for such KMP is expected to occur in July 2026, at which time IMDEX will make a further disclosure.

Yours faithfully Imdex Limited

Michael Tomasz Company Secretary

This announcement has been approved for lodgement by the IMDEX Company Secretary

ABOUT IMDEX™

IMDEX is a leading global Mining-Tech company, which enables successful and cost-effective operations from exploration to production. The ASX listed company develops cloud-connected sensors and drilling optimisation products to improve the process of identifying and extracting mineral resources for drilling contractors and resource companies globally. IMDEX’s unique end-to-end solutions for the mining value chain integrate its leading AMC™ and REFLEX™ brands. Together they enable clients to drill faster and smarter, obtain accurate subsurface data and receive critical information in real-time.