15 December 2025 Change of Director’s interest notice Peter Stephens

11 December 2025 Notification regarding unquoted securities – ESK

9 December 2025 Change in substantial holding David Deacon

9 December 2025 Change in substantial holding Peter Stephens

9 December 2025 Change of Director’s interest notice David Deacon

8 December 2025 Ceasing to be a substantial holder Paul Barnes

5 December 2025 Application for quotation of securities – ESK

5 December 2025 Notice under section 708A of the Corporations Act

5 December 2025 Application for quotation of securities – ESK

4 December 2025 Change of Directors Interest Notice David Deacon

2 December 2025 Change of Directors Interest Notice Peter Stephens

2 December 2025 Change of Directors Interest Notice David Deacon

28 November 2025 Change of Directors Interest Notice David Deacon

25 November 2025 Cleansing Offer Extension

25 November 2025 Application for quotation of securities – ESK

21 November 2025 Proposed issue of securities – ESK

21 November 2025 Cleansing Prospectus

18 November 2025 Successful Placement

18 November 2025 Proposed issue of securities – ESK

11 November 2025 FY25 Trading Update and FY26 Guidance

7 November 2025 Etherstack awarded Australian Defence project

17 October 2025 Etherstack awarded GBP14.2m UK Government 5 year contract 

16 October 2025 Notification regarding unquoted securities – ESK

1 October 2025 Notice under section 708A of the Corporations Act

1 October 2025 Application for quotation of securities – ESK

24 September 2025 Notice under section 708A of the Corporations Act

24 September 2025 Application for quotation of securities – ESK

3 September 2025 Notification regarding unquoted securities – ESK

26 August 2025 CFO and Company Secretary transition

20 August 2025 Half year results investor presentation

20 August 2025 Half Yearly Report and Accounts

15 August 2025 Etherstack update and H1 FY2025 results webinar

11 August 2025 AT&T Webinar investor presentation

11 August 2025 Etherstack major contract Webinar

11 August 2025 Etherstack signs record deal with US giant AT&T

8 August 2025 Trading halt

8 August 2025 Pause in trading

6 August 2025 Notice under section 708A of the Corporations Act

6 August 2025 Application for quotation of securities

22 July 2025 Notice under section 708A of the Corporations Act

22 July 2025 Application for quotation of securities

18 July 2025 Notice under section 708A of the Corporations Act

18 July 2025 Application for quotation of securities

27 June 2025 Notification regarding unquoted securities – ESK 

18 June 2025 Results of Annual General Meeting

18 June 2025 AGM presentation

13 June 2025 Notification regarding unquoted securities – ESK 

12 June 2025 Change of registry address notification

11 June 2025 Etherstack wins another $1m communications contract & H1 update

16 May 2025  Trading Update – Record H1 Cash Receipts

09 May 2025  Annual General Meeting Notice of Meeting

14 April 2025 AGM date and closing date for nomination of Directors

11 April 2025 Further $2.2m MCPTX Contract Signed

01 April 2025  Appendix 4G Corporate Governance Key to Disclosures

01 April 2025  2024 Statutory Accounts

28 February 2025 Change of UK registered Address

25 February 2025 Preliminary Final Report

21 February 2025 Cancel – Notification of cessation of securities – ESK

21 February 2025 Capital Structure Clarification

17 February 2025 Notice under section 708A of the Corporations Act

17 February 2025 Application for quotation of securities

22 January 2025 US$1.2m Contract Signed with AT&T

22 January 2025 Etherstack signs eighth iron ore comms contract

11 November 2025 FY25 Trading Update and FY26 Guidance

7 November 2025 Etherstack awarded Australian Defence project

17 October 2025 Etherstack awarded GBP14.2m UK Government 5 year contract 

16 October 2025 Notification regarding unquoted securities – ESK

1 October 2025 Notice under section 708A of the Corporations Act

1 October 2025 Application for quotation of securities – ESK

24 September 2025 Notice under section 708A of the Corporations Act

24 September 2025 Application for quotation of securities – ESK

3 September 2025 Notification regarding unquoted securities – ESK

26 August 2025 CFO and Company Secretary transition

20 August 2025 Half year results investor presentation

20 August 2025 Half Yearly Report and Accounts

15 August 2025 Etherstack update and H1 FY2025 results webinar

11 August 2025 AT&T Webinar investor presentation

11 August 2025 Etherstack major contract Webinar

11 August 2025 Etherstack signs record deal with US giant AT&T

8 August 2025 Trading halt

8 August 2025 Pause in trading

6 August 2025 Notice under section 708A of the Corporations Act

6 August 2025 Application for quotation of securities

22 July 2025 Notice under section 708A of the Corporations Act

22 July 2025 Application for quotation of securities

18 July 2025 Notice under section 708A of the Corporations Act

18 July 2025 Application for quotation of securities

27 June 2025 Notification regarding unquoted securities – ESK 

18 June 2025 Results of Annual General Meeting

18 June 2025 AGM presentation

13 June 2025 Notification regarding unquoted securities – ESK 

12 June 2025 Change of registry address notification

11 June 2025 Etherstack wins another $1m communications contract & H1 update

16 May 2025  Trading Update – Record H1 Cash Receipts

09 May 2025  Annual General Meeting Notice of Meeting

14 April 2025 AGM date and closing date for nomination of Directors

11 April 2025 Further $2.2m MCPTX Contract Signed

01 April 2025  Appendix 4G Corporate Governance Key to Disclosures

01 April 2025  2024 Statutory Accounts

28 February 2025 Change of UK registered Address

25 February 2025 Preliminary Final Report

21 February 2025 Cancel – Notification of cessation of securities – ESK

21 February 2025 Capital Structure Clarification

17 February 2025 Notice under section 708A of the Corporations Act

17 February 2025 Application for quotation of securities

22 January 2025 US$1.2m Contract Signed with AT&T

22 January 2025 Etherstack signs eighth iron ore comms contract