STRUCTURAL MONITORING SYSTEMS PLC — Director's Dealing 2021

May 20, 2021

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 30/9/2001.

Name of entity Structural Monitoring Systems plc ARBN 106 307 322

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 William Rouse
Date of last notice	26 February 2021

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 & Indirect
Nature of indirect interest(including registered holder)Note: Provide details of the circumstances giving rise to the relevantinterest.	The securities are held by CiticorpNominees Pty Limited as nominee, andbeneficially owned by Mr William DudleyRouse
Date of change	20 May 2021
No. of securities held prior to change	1,156,016 CDI’s170,588 PRs
Class	Chess Depositary Interests (SMN)
Number acquired	170,588 CDIs
Number disposed	Nil
Value/ConsiderationNote: If consideration is non-cash, provide details and estimated valuation	Conversion of Performance Rights to CDIs
No. of securities held after change	1,326,604 CDI’s
Nature of changeExample: on-market trade, off-market trade, exercise of options, issue ofsecurities under dividend reinvestment plan, participation in buy-back	Conversion of Performance Rights to CDIs

• See chapter 19 for defined terms.

11/3/2002

Appendix 3Y Page 1

Appendix 3Y Change of Director’s Interest Notice

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 Nature of interest Name of registered holder (if issued securities) Date of change 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 Interest acquired Interest disposed Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation Interest after change

Part 3 –[+] Closed period

Part 3 –+Closed period
Were the interests in the securities or contracts detailedabove traded during a+closed period where prior writtenclearance was required?	No
If so, was prior written clearance provided to allow the tradeto proceed during this period?
If prior written clearance was provided, on what date was thisprovided?

• See chapter 19 for defined terms.

Appendix 3Y Page 2

11/3/2002