South32 : Notification of Dividend / Distribution - Appendix 3A.1

About this update from South32 Ltd.

Update Summary Entity name SOUTH32 LIMITED Security on which the Distribution will be paid S32 - ORDINARY FULLY PAID Announcement Type Update to previous announcement Date of this announcement 25/9/2025 Reason for the Update Update to Appendix 3A.1 released 28 August 2025 to advise the exchange rates and local currency conversion. Refer to below for full details of the announcement Announcement Details Part 1 - Entity and announcement details Name of +Entity SOUTH32 LIMITED Registered Number Type ABN 84093732597 Registration Number ASX issuer code S32 The announcement is Update/amendment to previous announcement 1.4a Reason for update to a previous announcement Update to Appendix 3A.1 released 28 August 2025 to advise the exchange rates and local currency conversion. b Date of previous announcement(s) to this update 28/8/2025 Date of this announcement 25/9/2025 ASX +Security Code S32 ASX +Security Description ORDINARY FULLY PAID Part 2A - All dividends/distributions basic details 2A.1 Type of dividend/distribution Ordinary 2A.2 The Dividend/distribution: relates to a period of six months 2A.3 The dividend/distribution relates to the financial reporting or payment period ending ended/ending (date) 30/6/2025 2A.4 +Record Date 19/9/2025 2A.5 Ex Date 18/9/2025 2A.6 Payment Date 16/10/2025 2A.7 Are any of the below approvals required for the dividend/distribution before business day 0 of the timetable? Security holder approval Court approval Lodgement of court order with +ASIC ACCC approval FIRB approval Another approval/condition external to the entity required before business day 0 of the timetable for the dividend/distribution. No 2A.8 Currency in which the dividend/distribution is made ("primary currency") USD - US Dollar 2A.9 Total dividend/distribution payment amount per +security (in primary currency) for all dividends/distributions notified in this form USD 0.02600000 2A.9a AUD equivalent to total dividend/distribution amount per +security AUD 0.03925731 2A.9b If AUD equivalent not known, date for information to be released 25/9/2025 Estimated or Actual? Actual 2A.9c FX rate (in format AUD 1.00 / primary currency rate): AUD AUD 1.00 FX rate (in format AUD rate/primary currency rate) Primary Currency rate USD 0.66229700 2A.10 Does the entity have arrangements relating to the currency in which the dividend/distribution is paid to securityholders that it wishes to disclose to the market? Yes 2A.11 Does the entity have a securities plan for dividends/distributions on this +security? We do not have a securities plan for dividends/distributions on this security 2A.12 Does the +entity have tax component information apart from franking? No Part 2B - Currency Information 2B.1 Does the entity default to payment in certain currencies dependent upon certain attributes such as the banking instruction or registered address of the +securityholder? (For example NZD to residents of New Zealand and/or USD to residents of the U.S.A.). Yes 2B.2 Please provide a description of your currency arrangements South32 shareholders who hold shares on the Australian register will be paid dividends by direct credit in Australian Dollars (AUD) and can elect to receive a different currency by providing valid New Zealand Dollars (NZD), Pound Sterling (GBP) or United States Dollars (USD) banking instructions. These instructions must be provided to Computershare no later than 7pm (AEDT) on the Record Date. South32 shareholders who hold shares on the South African branch register will be paid dividends by direct credit in South African Rand (ZAR) and cannot elect to receive a different currency. South32 UK Depositary Interest holders will be paid dividends by direct credit in Pound Sterling (GBP) and cannot elect to receive a different currency. 2B.2a Other currency/currencies in which the dividend/distribution will be paid: Currency Payment currency equivalent amount per security AUD - Australian Dollar AUD 0.03925731 NZD - New Zealand Dollar NZD 0.04431302 GBP - Pound Sterling GBP 0.01916980 ZAR - Rand ZAR 0.45479120 2B.2b Please provide the exchange rates used for non-primary currency payments Average rate realised by South32 on market during the period: ZAR - 8 September 2025 to 12 September 2025 AUD, NZD, GBP - 8 September 2025 to 24 September 2025 2B.2c If payment currency equivalent and exchange rates not known, date for information to be released 25/9/2025 Estimated or Actual? Actual 2B.3 Can the securityholder choose to receive a currency different to the currency they would receive under the default arrangements? Yes 2B.3a Please describe what choices are available to a securityholder to receive a currency different to the currency they would receive under the default arrangements For shareholders on the Australian register - Australian Dollars (AUD), New Zealand Dollars (NZD), Pound Sterling (GBP) or United States Dollars (USD). For shareholders on the South African branch register - no choice available (only South African Rand (ZAR) will be available). For UK Depositary Interest Holders - no choice available (only Pound Sterling (GBP) will be available). 2B.3b Date and time by which any document or communication relating to the above arrangements must be received in order to be effective for this dividend/distribution Friday September 19, 2025 19:00:00 2B.3c Please provide, or indicate where relevant forms can be obtained and how and where they must be lodged For Australian holders - currency elections and direct credit details can be provided online at https://www.computershare.com.au/ investor or by calling Computershare Investor Services on 1800 019 953 or +61 3 9415 4169. For South African holders - direct credit details can be provided by calling Computershare Investor Services on smart number +27 (0) 861 100 950. For UK Depositary Interest holders - direct credit details can be provided online at https://www.investorcentre.co.uk Part 3A - Ordinary dividend/distribution 3A.1 Is the ordinary dividend/distribution estimated at this time? No 3A.1a Ordinary dividend/distribution estimated amount per +security USD 3A.1b Ordinary Dividend/distribution amount per security USD 0.02600000 3A.2 Is the ordinary dividend/distribution franked? 3A.2a Is the ordinary dividend/distribution fully franked? Yes Yes 3A.3 Percentage of ordinary dividend/distribution that is franked 100.0000 % 3A.3a Applicable corporate tax rate for franking credit (%) 30.0000 % 3A.4 Ordinary dividend/distribution franked amount per +security USD 0.02600000 3A.5 Percentage amount of dividend which is unfranked 0.0000 % 3A.6 Ordinary dividend/distribution unfranked amount per +security excluding conduit foreign income amount USD 0.00000000 3A.7 Ordinary dividend/distribution conduit foreign income amount per security USD 0.00000000 Part 5 - Further information Please provide any further information applicable to this dividend/distribution Additional information for inclusion in the Announcement Summary

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