Announcement PDF Form 604 Corporations Act 2001 Section 671B Notice of change of interests of substantial holder To Company Name/Scheme Microba Life Sciences Ltd (ASX: MAP) ABN/ARSN 82 617 096 652 1. Details of substantial holder (1) Name Mercer Investments (Australia) Limited as Trustee of WSSP Australian Equities Trust ACN/ARSN (if applicable) Mercer Investments (Australia) Limited (ABN 66 008 612 397) WSSP Australian Equities Trust (ABN 71 812 058 980) There was a change in interests of the substantial holder on 25/09/2026 The previous notice was given to the company on 14/07/2026 The previous notice date 14/07/2026 2. Previous and present voting power The total number of votes attached to all the voting shares or interests in the company, scheme or fund that the substantial holder or an associate (2) had a relevant interest (3) in when last required, and when now required, to give a substantial holding notice to the company, scheme or fund, are as follows: Class of securities (4) Previous Notice Present notice Person’s votes Voting Power (5) Person’s votes Voting Power (5) Ordinary Fully Paid Shares 53,123,105 7.586% 62,564,981 8.725% 3. Changes in relevant interests Particulars of each change in, or change in the nature of, a relevant interest of the substantial holder or an associate in voting securities of the company, scheme or fund, since the substantial holder was last required to give a substantial holding notice to the company, scheme or fund are as follows: Date of Change Person whose relevant interest changed Nature of change (6) Consideration given in relation to change (7) Class and number of securities affected Person’s votes affected 25/09/2026 Mercer Investments (Australia) Limited as Trustee of WSSP Australian Equities Trust See Annexure A, Table 4 See Annexure A, Table 4 Refer to Annexure A, Table 3 Refer to Annexure A, Table 3 4. Present relevant interests Particulars of each relevant interest of the substantial holder in voting securities after the change are as follows: Holder of relevant interest Registered holder of securities Person entitled to be registered as holder (8) Nature of relevant interest (6) Class and number of securities Person’s votes See Annexure A, Table 2 See Annexure A, Table 2 See Annexure A, Table 2 See Annexure A, Table 2 See Annexure A, Table 2 See Annexure A, Table 2 5. Changes in association The persons who have become associates (2) of, ceased to be associates of, or have changed the nature of their association (9) with, the substantial holder in relation to voting securities in the company, scheme or fund are as follows: Name and ACN/ARSN (if applicable) Nature of association See Annexure A, Table 1 & Table 2 See Annexure A, Table 1 & Table 2 6. Addresses The addresses of persons named in this form are as follows: Name Address Mercer Investments (Australia) Limited as Trustee of WSSP Australian Equities Trust Level 15, Collins Square, 727 Collins Street, Melbourne VIC 3008, Australia Signature Print name: Anne Jordan Capacity: Company Secretary, Mercer Investments (Australia) Limited Sign here: Date: 30/09/2026 This is Annexure A of seven pages referred to in Form 604 'Notice of change of interests of substantial holder' Signature Date: 30/09/2026 Name: Anne Jordan Capacity: Company Secretary, Mercer Investments (Australia) Limited Annexure A - Table 1 Related Companies of Mercer Investments (Australia) Limited Mercer Superannuation (Australia) Limited Mercer Investments (Australia) Limited Mercer (Australia) Pty Ltd Mercer Consulting (Australia) Proprietary Limited Mercer Financial Advice Proprietary Limited Mercer Outsourcing (Australia) Proprietary Limited Mercer Australia Superannuation Administration Proprietary Limited Mercer Investments (Australia) Limited acts as RE or Trustee for these funds Advance Australian Fixed Interest Multi-Blend Fund Mercer Australian Shares Fund for Tax Exempt Investors Advance Australian Shares Multi-Blend Fund Mercer Australian Small Companies Fund Advance Balanced Multi-Blend Fund Mercer Australian Sovereign Bond Fund Advance Cash Multi-Blend Fund Mercer Cash Fund Advance Defensive Multi-Blend Fund Mercer CFS Property Fund Advance Diversified Alternatives Fund Mercer Conservative Growth Fund Advance Global Unlisted Property Fund Mercer Conservative Growth Overlay Fund Advance Growth Multi-Blend Fund Mercer DG (EX P) Trust Advance High Growth Multi-Blend Fund Mercer Emerging Markets Debt Fund Advance International Fixed Interest Multi-Blend Fund Mercer Emerging Markets Shares Fund Advance International Shares Multi-Blend Fund Mercer Global Credit Fund Advance Moderate Multi-Blend Fund Mercer Global High Yield Bond Fund Advance Private Debt Fund Mercer Global Listed Property Fund Advance Unlisted Infrastructure Fund Mercer Global Private Debt Fund AP # 1 Trust Mercer Global Small Companies Shares Fund AP#2 Trust Mercer Global Sovereign Bond Fund Managed Portfolio Series Australian Fixed Interest Fund 1 Mercer Global Unlisted Infrastructure Fund Managed Portfolio Series Australian Fixed Interest Fund 2 Mercer Global Unlisted Property Fund Managed Portfolio Series Australian Fixed Interest Fund 3 Mercer Global Unlisted Property Fund (MST) Managed Portfolio Series International Fixed Interest Fund 1 Mercer Growth Fund Managed Portfolio Series International Fixed Interest Fund 3 Mercer Growth Overlay Fund Mercer Australian Direct Property Fund Mercer Hedged International Shares Fund Mercer Australian Inflation Plus Fund Mercer High Growth Fund Mercer Australian Shares Fund Mercer High Growth Overlay Fund Annexure A - Table 1 (continued) Mercer Investments (Australia) Limited acts as RE or Trustee for these funds Mercer Indexed Australian Fixed Interest Fund Mercer Sustainable Plus Global Credit Fund Mercer Indexed Australian Listed Property Fund Mercer Sustainable Plus International Shares Fund Mercer Indexed Australian Shares Fund Mercer Tailored #1 Trust Mercer Indexed Balanced Fund SP International Shares Trust Mercer Indexed Defensive Fund Sustainable GS#1 Trust Mercer Indexed Growth Fund TAL 2 Trust Mercer Indexed High Growth Fund TSA Equity Fund #1 Mercer Indexed International Fixed Interest Fund TSA Equity Fund #2 Mercer Indexed International Shares Fund WSSP Australian Equities Trust Mercer Indexed Moderate Fund WSSP International Equities Trust Mercer International Shares Fund WSSP International Property (Global REITS) Trust Mercer Investment Funds Australian Shares Plus Trust Mercer Moderate Growth Fund Mercer Moderate Growth Overlay Fund Mercer OSS Trust Mercer Passive Australian Listed Property Fund Mercer Passive Australian Shares Fund Mercer Passive Emerging Markets Shares Fund Mercer Passive Global Listed Infrastructure Fund Mercer Passive Global Listed Property Fund Mercer Passive Global Technology Shares Fund Mercer Passive Hedged International Shares Fund Mercer Passive International Shares Fund Mercer Passive Sustainable International Shares Fund Mercer Short Term Bond Fund Mercer Sustainable Plus Australian Shares Fund Annexure A - Table 2 Fund details: No. Fund Name Registered Holder Registered Address Persons entitled to be registered holder 1 WSSP Australian Equities Trust HSBC Custody Nominees (Australia) Limited as a Sub Custodian of WSSP Australian Equities Trust GPO BOX 5302 SYDNEY NSW 2001 MERCER INVESTMENTS (AUSTRALIA) LIMITED as Trustee of WSSP Australian Equities Trust Annexure A - Table 3 Present relevant interest Mercer Investments (Australia) Limited (ABN 66 008 612 397) and WSSP Australian Equities Trust (ABN 71 812 058 980) As at 25 September 2026 Mercer Investments (Australia) Limited's holdings 62,564,981 Total Shares on Issue – Microba Life Sciences Ltd (MAP) 717,117,274 8.725% Annexure A - Table 4 The changes in relevant interest, including the consideration paid and received, since the previous notice date are as follows: Fund name Entity Name Trade Date No of Securities Value per share Consideration ISIN Action WSSP Australian Equities Trust Mercer Investments (Australia) Limited 25/09/2026 915,658 0.0495 $ 45,325.07 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 25/09/2026 199,866 0.0500 $ 9,993.30 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 24/09/2026 4,295 0.0500 $ 214.75 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 23/09/2026 190,748 0.0500 $ 9,537.40 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 22/09/2026 5,770,000 0.0518 $ 298,886.00 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 7/08/2026 167 0.0460 $ 7.68 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 5/08/2026 290 0.0470 $ 13.63 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 4/08/2026 1 0.0500 $ 0.05 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 3/08/2026 11,258 0.0461 $ 518.99 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 31/07/2026 12,000 0.0470 $ 564.00 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 30/07/2026 25,095 0.0470 $ 1,179.47 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 30/07/2026 137,541 0.0468 $ 6,436.92 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 29/07/2026 227,521 0.0470 $ 10,693.49 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 28/07/2026 335,697 0.0470 $ 15,777.76 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 27/07/2026 286,739 0.0460 $ 13,189.99 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 23/07/2026 103,723 0.0450 $ 4,667.54 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 22/07/2026 396,277 0.0450 $ 17,832.47 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 21/07/2026 200,461 0.0444 $ 8,900.47 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 20/07/2026 61,162 0.0420 $ 2,568.80 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 20/07/2026 299,539 0.0440 $ 13,179.72 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 17/07/2026 43,797 0.0393 $ 1,721.22 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 16/07/2026 20,000 0.0405 $ 810.00 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 16/07/2026 41 0.0420 $ 1.72 AU0000209868 Purchases Fund name Entity Name Trade Date No of Securities Value per share Consideration ISIN Action WSSP Australian Equities Trust Mercer Investments (Australia) Limited 14/07/2026 30,000 0.0410 $ 1,230.00 AU0000209868 Purchases WSSP Australian Equities Trust Mercer Investments (Australia) Limited 10/07/2026 170,000 0.0394 $ 6,698.00 AU0000209868 Purchases