ARCHTIS LIMITED — Director's Dealing 2025

Dec 21, 2025

Appendix 3Y Change of Director’s Interest Notice

Rule 3.19A.2

Appendix 3Y

Change of Director’s Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public.

Introduced 30/09/01 Amended 01/01/11

Name of entity archTIS Limited ABN 123 098 671

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.

Name of Director	Mr Daniel Lai
Date of last notice	18 December 2025

Part 1 - Change of director’s relevant interests in securities

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part.

Direct or indirect interest	Direct
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	N/A
Date of change	22 December 2025
No. of securities held prior to change	10,529,434 Fully Paid Ordinary Shares 210,084 AR9O15 Unlisted Options ($0.1428, 6 March 2026) 378,673 AR9O16 Unlisted Options ($0.07920, 21 December 2026) 416,504 AR9O20 Unlisted Options ($0.0771, 20 December 2028) 169,394 AR9O21 Unlisted Options ($0.20, 11 December 2029) 2,082,521 AR9PR10 Performance Rights 846,966 AR9PR17 Performance Rights
Class	AR9PR10 Performance Rights Fully Paid Ordinary Shares
Number acquired	208,252 Fully Paid Ordinary Shares
Number disposed	1,874,268 AR9PR10 Performance Rights

• See chapter 19 for defined terms.

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Appendix 3Y Change of Director’s Interest Notice

Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	Nil consideration.
No. of securities held after change	10,737,686 Fully Paid Ordinary Shares 210,084 AR9O15 Unlisted Options ($0.1428, 6 March 2026) 378,673 AR9O16 Unlisted Options ($0.07920, 21 December 2026) 416,504 AR9O20 Unlisted Options ($0.0771, 20 December 2028) 169,394 AR9O21 Unlisted Options ($0.2, 11 December 2029) 208,253 AR9PR10 Performance Rights 846,966 AR9PR17 Performance Rights
Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back	1,666,016 AR9PR10 Performance Rights lapsed, and 208,252 AR9PR10 Performance Rights vested into 208,252 Fully Paid Ordinary Shares.

Part 2 – Change of director’s interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part.

Detail of contract	N/A
Nature of interest	N/A
Name of registered holder (if issued securities)	N/A
Date of change	N/A
No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed	N/A
Interest acquired	N/A
Interest disposed	N/A
Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation	N/A
Interest after change	N/A

Part 3 –[+] Closed period

Were the interests in the securities or contracts detailed above No traded during a[+] closed period where prior written clearance was required?

• See chapter 19 for defined terms.

Appendix 3Y Page 2

01/01/2011

Appendix 3Y Change of Director’s Interest Notice

If so, was prior written clearance provided to allow the trade to proceed during this period?	Not applicable
If prior written clearance was provided, on what date was this provided?	Not applicable

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 3