DATA#3 LIMITED — Board/Management Information 2023

Mar 30, 2023

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31 March 2023

The Manager Markets Announcements Office Australian Securities Exchange 20 Bridge Street SYDNEY NSW 2000

Dear Sir/Madam

Re: Resignation of Company Secretary

Data[#] 3 Limited (ASX: DTL) advises that Bremner Hill has resigned as Company Secretary of Data[#] 3 Limited and related bodies corporate with effect from today.

Data[#] 3 acknowledges and thanks Mr Hill for his contribution to the organisation, as Company Secretary, since October 1997.

Terence Bonner will continue to serve as Company Secretary (appointed in November 2007), in conjunction with his role of General Counsel.

Yours faithfully

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Richard Anderson Chairman Data[#] 3 Limited ABN 31 010 545 267