Announcement PDF 605 page 1/2 15July 2001 Form605 Corporations Act 2001 Section 671B Notice of ceasing to be a substantial holder To Company Name/Scheme MICROBA LIFE SCIENCES LIMITED ACN/ARSN 617 096 652 1. Details of substantial holder (1) Name MICROBA LIFE SCIENCES LIMITED ACN/ARSN (if applicable) 617 096 652 The holder ceased to be a substantial holder on 05/04/2024 04/03/2024 04/03/2024 The previous notice was given to the company on The previous notice was dated 2. Changes in relevant interests Particulars of each change in, or change in the nature of, a relevant interest (2) of the substantial holder or an associate (3) in voting securities of the company or scheme, since the substantial holder was last required to give a substantial holding notice to the company or scheme are as follows: Date of change Person whose relevant interest changed 05/04/2024 Microba Life Sciences Limited Nature of change (4) Release of securities from ASX imposed escrow Consideration given in relation to change (5) Not applicable Class (6) and number of securities affected Person's votes affected (48,031,314) (48,031,314) 3. Changes in association The persons who have become associates (3) of, eased to be associates of, or have changed the nature of their association (7) with, the substantial holder in relation to voting interests in the company or scheme are as follows: Name and ACN/ARSN (if applicable) Nature of association Not applicable 4. Addresses The addresses of persons named in this form are as follows: Name Address Microba Life Sciences Limited Level 10, 324 Queen Street, Brisbane QLD 4000 Signature print name sign here Peter Webse capacity Company Secretary date 05/04/2024 605 page 2/2 15July 2001 DIRECTIONS (1) If there are a number of substantial holders with similar or related relevant interests (e.g. A corporation and its related corporations, or the manager and trustee of an equity trust), the names could be included in an annexure to the form. If the relevant interests of a group of persons are essentially similar, they may be referred to throughout the form as a specifically named group if the membership of each group, with the names and addresses of members is clearly set out in paragraph 4 of the form. (2) See the definition of "relevant interest" in sections608and671B (7) of the Corporations Act2001. (3) See the definition of "associate" in section 9 of the Corporations Act 2001. (4) Include details of: (a) any relevant agreement or other circumstances because of which the change in relevant interest occurred. If subsection671B (4) applies, a copy of any document setting out the terms of any relevant agreement, and a statement by the person giving full and accuratedetails of any contract, schemeor arrangement, must accompany this form, together with a written statement certifying this contract, scheme or arrangement;and (b) any qualification of the power of a person to exercise, control the exercise of, or influence the exercise of, the voting powers or disposal of the securities to which the relevant interest relates (indicating clearly the particular securities to which the qualification applies). See the definition of "relevant agreement" in section9 of the Corporations Act 2001. (5) Details of the consideration must include any and all benefits money and other, that any person from whom a relevant interest was acquired has, or may, become entitled to receive in relation to that acquisition. Details must be included even if the benefit is conditional on the happening or not of a contingency. Details must be included of any benefit paid on behalf of the substantial holder or its associate in relation to the acquisitions, even if they are not paid directly to the person from whom the relevant interest was acquired. (6) The voting shares of a company constitute one class unless divided into separate classes. (7) Give details, if appropriate, of the present association and any change in that association since the last substantial holding notice.