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SOUTH32 LIMITED - Quarterly Report September 2025

Release Date: 21/10/2025 07:56
Code(s): S32     PDF:  
Wrap Text
Quarterly Report September 2025

South32 Limited
(Incorporated in Australia under the Corporations Act 2001 (Cth))
(ACN 093 732 597)
ASX / LSE / JSE Share Code: S32; ADR: SOUHY
ISIN: AU000000S320
south32.net


QUARTERLY REPORT
September 2025
South32 Chief Executive Officer, Graham Kerr: "We delivered another period of strong operating performance as we continued our focus on
safe and reliable operations.
"Production highlights included a 12 per cent increase in payable copper equivalent production at Sierra Gorda and a 33 per cent uplift in manganese
volumes, as we successfully executed the operational recovery plan at Australia Manganese.
"Our financial position remains strong as we continued our investment in growth at Hermosa, supported by US$117 million in net distributions
from our Sierra Gorda and manganese equity accounted investments during the quarter.
"At Hermosa, we continued critical path shaft sinking for our Taylor zinc-lead-silver project, while the exploration decline for the Clark battery-
grade manganese deposit remains on track to be completed in the December 2025 quarter.
"In addition to Hermosa, we continue to advance a pipeline of high-quality base metals development and exploration options.
"We welcome the decision of the US Government to support the establishment of the Ambler Access Road. This is a key step in unlocking the
potential of the Ambler Mining District, where we hold high-grade copper and zinc options.
"Looking ahead, we remain focused on maintaining our operating momentum and capitalising on strengthening market conditions in base
metals."



•    FY26 production guidance remains unchanged across all operations.
•    Alumina production increased by 1% as Brazil Alumina operated above nameplate capacity, while Worsley Alumina benefitted from
     improved bauxite supply and completed planned calciner maintenance.
•    Aluminium production increased by 1% as Hillside Aluminium continued to test its maximum technical capacity and Mozal Aluminium lifted production
     by 3%, despite the decision to stop pot relining due to uncertain future electricity supply1.
•    Sierra Gorda payable copper equivalent production2 increased by 12%, due to higher planned copper grades and a significant uplift in molybdenum volumes.
     Net distributions of US$81M (South32 share) were received from Sierra Gorda in the quarter.
•    Cannington payable zinc equivalent production3 declined by 19%, as anticipated, with improved underground mining performance offset by
     lower average metals grades.
•    Manganese production increased by 33%, as Australia Manganese executed its operational recovery plan and ramped up export shipments
     as planned, while South Africa Manganese also delivered a strong start to the year.
•    Australia Manganese finalised insurance claims related to Tropical Cyclone Megan, with an additional US$153M (100% basis) in external insurance
     recoveries agreed in the quarter, bringing final approved recoveries to US$503M (100% basis).
•    Divestment of Cerro Matoso remains on track to be completed in the December 2025 quarter, further streamlining our portfolio towards
     higher-margin businesses in commodities critical to the global energy transition.
•    Negotiations to secure sufficient and affordable electricity for Mozal Aluminium have not progressed to provide confidence the smelter will have
     access to the required electricity supply when the current agreement expires in March 2026.
•    Paid a fully-franked ordinary dividend of US$117M in respect of the June 2025 half year, subsequent to the end of the quarter.
Production summary
                                                                                           4Q25   1Q26   YTD FY26   FY26e(a)   % of FY26e(a)
Worsley Alumina (kt)                                                                        936    934       934      3,750          25%
Brazil Alumina (non-operated) (kt)                                                          334    354       354      1,360          26%
Brazil Aluminium (non-operated) (kt)                                                         38     37        37        160          23%
Hillside Aluminium (kt)4                                                                    181    181       181        720          25%
Mozal Aluminium (kt)4                                                                        90     93        93        240          39%(b)
Sierra Gorda (non-operated) (CuEq) (kt)2                                                   22.3   24.9       24.9      85.7          29%
Cannington (ZnEq) (kt)3                                                                    59.5   48.3       48.3     200.6          24%
Cerro Matoso (kt)                                                                           9.7    9.4        9.4      16.0          59%(c)
Australia Manganese (kwmt)                                                                  467    854       854      3,200          27%
South Africa Manganese (kwmt)                                                               593    551       551      2,000          28%
(a) The denotation (e) refers to an estimate or forecast year.
(b) FY26e production guidance for Mozal Aluminium reflects the period ending March 2026.
(c) FY26e production guidance for Cerro Matoso reflects the period ending December 2025.




South32 Quarterly Report September 2025                                                                                        Page 2 of 11
CORPORATE UPDATE
•    We continue to implement our global Safety Improvement Program, including investment in safety leadership through our LEAD Safely Every Day
     program, together with further simplification of our systems and improved effectiveness of controls.
•    In August 2025, we published our second Climate Change Action Plan (CCAP 2025), building on our inaugural Climate Change Action Plan 2022. Our CCAP
     2025 outlines how we are positioning our portfolio for the energy transition, reducing our operational emissions, supporting emissions reduction across
     our value chain, and strengthening physical climate resilience. Our CCAP 2025 will be the subject of a non-binding advisory shareholder vote at our 2025
     Annual General Meeting.
•    Net cash5 declined by US$59M to US$64M in the September 2025 quarter, as we continued our investment in growth at Hermosa, and
     experienced a temporary build in working capital of ~US$100M. The increase in working capital reflected higher finished goods inventories
     due to the timing of shipments, as well as payments accrued in the prior period.
•    We received net distributions6 of US$117M (South32 share) from our equity accounted investments (EAI) in the September 2025 quarter,
     with US$81M from Sierra Gorda and US$36M from our manganese business. We expect further distributions from both Sierra Gorda and
     our manganese business to add to cash generation in the December 2025 quarter.
•    Australia Manganese completed the insurance settlement related to the impacts of Tropical Cyclone Megan, with an additional US$153M
     (100% basis) in external insurance recoveries agreed during the September 2025 quarter. This brings the final approved external insurance
     recoveries to a total of US$503M (100% basis).
•    We invested US$82M in Group capital expenditure (excluding EAIs and Hermosa) during the September 2025 quarter.
•    We made Group tax payments (excluding EAIs) of US$50M during the September 2025 quarter.
•    We returned US$7M to shareholders via our on-market share buy-back in September 2025, purchasing 4M shares at an average price of
     A$2.63 per share. Our US$2.5B capital management program is 94% complete, with US$136M to be returned to shareholders ahead of its
     extension or expiry on 11 September 20267.
•    Following the end of the September 2025 quarter, we paid a fully-franked ordinary dividend of US$117M in respect of the June 2025 half
     year.

DEVELOPMENT AND EXPLORATION UPDATE
Hermosa project
•    We invested US$160M8 of growth capital expenditure at Hermosa during the September 2025 quarter, as we progressed construction of the Taylor
     zinc-lead-silver project and an exploration decline for the Clark battery-grade manganese deposit. In addition, lease payments for self generated
     power assets were US$12M during the September 2025 quarter.
•    At Taylor, we continued critical path shaft sinking for both the ventilation and main shafts. The ventilation shaft is expected to reach the first
     underground mining level during the December 2025 quarter, at which point we will commence lateral development and shaft station
     construction before resuming sinking.
•    Surface infrastructure construction also progressed, with initial foundation works for the primary mill in the process plant completed during the
     September 2025 quarter. Construction activity for the process plant is on track to increase across FY26.
•    Construction of the exploration decline for Clark remains on track to be completed in the December 2025 quarter.
•    We invested US$6M in capitalised exploration during the September 2025 quarter as we continued exploration drilling at the Peake copper
     deposit. Concept studies are progressing on the potential to develop Peake, leveraging the infrastructure established for Taylor.
Ambler Metals project
•    On 6 October 2025, the President of the United States approved the appeal by the Alaska Industrial Development and Export Authority directing his
     Administration to issue authorisations necessary for the establishment of the Ambler Access Road9. The Ambler Access Road is a key enabler in unlocking
     the value of the Ambler Mining District, where we hold high-grade copper and zinc options through our 50% interest in the Ambler Metals joint venture
     and our 100% interest in the Roosevelt exploration project.
•    Separately, the US Government has agreed to acquire an initial ~10% equity interest in Trilogy Metals Inc. (Trilogy)10, our 50% joint venture partner in Ambler
     Metals, to support exploration and development activities. As part of this investment, we have agreed to sell ~8.2M shares in Trilogy for cash consideration
     of ~US$17.8M and to issue a 10-year call option for an additional ~6.2M Trilogy shares held by South32, exercisable only following construction of the
     Ambler Access Road. Proceeds from the initial share sale will be reinvested into exploration and development at Ambler Metals. On completion of the initial
     investment, we will retain ~10.4M shares in Trilogy, representing a ~6% equity interest.
Greenfield exploration
•    We invested US$7M in our greenfield exploration opportunities during the September 2025 quarter as we progressed multiple exploration
     programs targeting base metals in highly prospective regions.
•    We expanded our pipeline of base metals exploration options through strategic alliances with Orogen Royalties Inc. targeting projects in western North
     America, and Aurum Discovery Limited, focusing on early stage prospects in Norway and Ireland.
Other exploration
•    We invested US$13M (US$9M capitalised) in exploration programs at our existing operations and development options during the
     September 2025 quarter, including US$6M at the Hermosa project (noted above, all capitalised), US$3M for our Sierra Gorda EAI (US$2M
     capitalised) and US$2M for our manganese EAI (nil capitalised).




South32 Quarterly Report September 2025                                                                                                               Page 3 of 11
WORSLEY ALUMINA (86% SHARE)
                                                                                                                              1Q26        1Q26
South32 share                                          YTD FY25   YTD FY26        YoY         1Q25       4Q25       1Q26        vs          vs
                                                                                                                              1Q25        4Q25
Alumina production (kt)                                     850        934        10%          850        936       934        10%        (0%)

Alumina sales (kt)                                          824        878        7%           824      1,000       878        7%        (12%)

Worsley Alumina saleable production was largely unchanged at 934kt in the September 2025 quarter, supported by improved bauxite supply to
the refinery, while planned calciner maintenance was completed. FY26 production guidance remains unchanged at 3,750kt.
Sales decreased by 12% in the September 2025 quarter following a drawdown of inventory in the prior quarter, and the timing of shipments.



BRAZIL ALUMINA (36% SHARE, NON-OPERATED)
                                                                                                                              1Q26        1Q26
South32 share                                          YTD FY25   YTD FY26        YoY         1Q25       4Q25       1Q26        vs          vs
                                                                                                                              1Q25        4Q25
Alumina production (kt)                                     334        354        6%            334       334        354        6%          6%

Alumina sales (kt)                                          326        332        2%            326       335        332        2%         (1%)

Brazil Alumina saleable production increased by 6% (or 20kt) to 354kt in the September 2025 quarter, as the refinery operated above nameplate
capacity, driven by improved plant availability. FY26 production guidance remains unchanged at 1,360kt.



BRAZIL ALUMINIUM (40% SHARE, NON-OPERATED)
                                                                                                                              1Q26        1Q26
South32 share                                          YTD FY25   YTD FY26        YoY         1Q25       4Q25       1Q26        vs          vs
                                                                                                                              1Q25        4Q25
Aluminium production (kt)                                    30         37      23%              30         38        37       23%         (3%)

Aluminium sales (kt)                                         25         29      16%              25         46        29       16%        (37%)

Brazil Aluminium saleable production decreased by 3% (or 1kt) to 37kt in the September 2025 quarter, reflecting a temporary reduction in
amperage and pots in operation to manage the ramp up of all three potlines. The smelter's operating performance and production volumes
improved towards the end of the September 2025 quarter, with FY26 production guidance remaining unchanged at 160kt.
Sales decreased by 37% in the September 2025 quarter due to the timing of export shipments.




South32 Quarterly Report September 2025                                                                                          Page 4 of 11
HILLSIDE ALUMINIUM (100% SHARE)
                                                                                                                                1Q26        1Q26
South32 share                                           YTD FY25   YTD FY26        YoY          1Q25       4Q25      1Q26         vs          vs
                                                                                                                                1Q25        4Q25
Aluminium production (kt)                                    180        181        1%            180        181        181        1%          0%

Aluminium sales (kt)                                         175        169       (3%)           175        194        169       (3%)       (13%)

Hillside Aluminium saleable production was unchanged at 181kt in the September 2025 quarter, as the smelter continued to test its maximum
technical capacity, despite the impact of load-shedding. FY26 production guidance remains unchanged at 720kt4.
Sales decreased by 13% in the September 2025 quarter as a shipment slipped to the December 2025 quarter.



MOZAL ALUMINIUM (63.7% SHARE)
                                                                                                                                1Q26        1Q26
South32 share                                           YTD FY25   YTD FY26        YoY          1Q25       4Q25      1Q26         vs          vs
                                                                                                                                1Q25        4Q25
Aluminium production (kt)                                     88         93        6%             88         90         93        6%          3%

Aluminium sales (kt)                                          86        100       16%             86        105        100       16%         (5%)

Mozal Aluminium saleable production increased by 3% (or 3kt) to 93kt in the September 2025 quarter, as the smelter operated near its maximum
technical capacity, prior to our decision in August 2025 to stop pot relining due to the uncertainty of future electricity supply beyond March
20261. FY26 production guidance remains unchanged at 240kt4, based on operations continuing to March 2026, when the current electricity
supply agreement expires.
We are continuing to actively engage with the Government of the Republic of Mozambique, Hidroeléctrica de Cahora Bassa (HCB) and Eskom on
securing sufficient and affordable electricity for Mozal Aluminium. Despite our efforts, negotiations have not progressed to provide confidence
that Mozal Aluminium will secure sufficient and affordable electricity supply beyond March 2026. Without the required electricity supply, we
expect that Mozal Aluminium will be placed on care and maintenance at the end of the current agreement.




South32 Quarterly Report September 2025                                                                                            Page 5 of 11
SIERRA GORDA (45% SHARE, NON-OPERATED)
                                                                                                                                    1Q26        1Q26
South32 share                                             YTD FY25    YTD FY26        YoY          1Q25       4Q25       1Q26         vs          vs
                                                                                                                                    1Q25        4Q25
Payable copper equivalent production (kt)2                     22.5       24.9      11%             22.5       22.3       24.9       11%         12%

Payable copper production (kt)                                 17.6       18.3        4%            17.6       17.7       18.3        4%          3%

Payable copper sales (kt)                                      17.9       17.2       (4%)           17.9       18.1       17.2       (4%)       (5%)

Sierra Gorda payable copper equivalent production2 increased by 12% (or 2.6kt) to 24.9kt in the September 2025 quarter, due to higher planned copper
grades, and a significant uplift in molybdenum recoveries in the current phase of the mine plan. FY26 payable copper equivalent production2 guidance
remains unchanged at 85.7kt.
During the September 2025 quarter, Sierra Gorda advanced the feasibility study for the fourth grinding line project, including additional
engineering work on the tailings thickeners. An update on the fourth grinding line project will be provided with our December 2025 half year
financial results.



CANNINGTON (100% SHARE)
                                                                                                                                    1Q26        1Q26
South32 share                                             YTD FY25    YTD FY26        YoY          1Q25       4Q25       1Q26         vs          vs
                                                                                                                                    1Q25        4Q25
Payable zinc equivalent production (kt)3                       48.9       48.3       (1%)           48.9       59.5       48.3        (1%)      (19%)

Payable silver production (koz)                              1,915       2,067        8%           1,915      2,578      2,067        8%        (20%)

Payable silver sales (koz)                                   2,342       2,149       (8%)          2,342      3,056      2,149        (8%)      (30%)

Payable lead production (kt)                                   19.3       21.3      10%             19.3       25.1       21.3       10%        (15%)

Payable lead sales (kt)                                        25.1       21.0      (16%)           25.1       25.2       21.0       (16%)      (17%)

Payable zinc production (kt)                                   12.1        8.3      (31%)           12.1       10.6        8.3       (31%)      (22%)

Payable zinc sales (kt)                                        12.6        7.3      (42%)           12.6       13.1        7.3       (42%)      (44%)

Cannington payable zinc equivalent production3 decreased by 19% (or 11.2kt) to 48.3kt in the September 2025 quarter, as anticipated, with
improved underground mining performance more than offset by lower average metal grades. FY26 payable zinc equivalent production3 guidance
remains unchanged at 200.6kt, supported by higher average metal grades across the remainder of the year, in accordance with the mine plan.



CERRO MATOSO (99.9% SHARE)
                                                                                                                                    1Q26        1Q26
South32 share                                             YTD FY25    YTD FY26        YoY          1Q25       4Q25       1Q26         vs          vs
                                                                                                                                    1Q25        4Q25
Payable nickel production (kt)                                  8.6        9.4        9%             8.6        9.7        9.4        9%         (3%)

Payable nickel sales (kt)                                       8.8       10.3      17%              8.8        9.8       10.3       17%          5%

Cerro Matoso payable nickel production decreased by 3% (or 0.3kt) to 9.4kt in the September 2025 quarter, as improved plant availability was
more than offset by lower planned nickel grades. Payable nickel production guidance for the December 2025 half year remains unchanged at
16.0kt.
The divestment of Cerro Matoso to a subsidiary of CoreX Holding B.V. remains on track to be completed in the December 2025 quarter, subject
to the satisfaction of remaining conditions precedent11.




South32 Quarterly Report September 2025                                                                                                Page 6 of 11
AUSTRALIA MANGANESE (60% SHARE)
                                                                                                                            1Q26       1Q26
South32 share                                         YTD FY25   YTD FY26       YoY         1Q25       4Q25      1Q26         vs         vs
                                                                                                                            1Q25       4Q25
Manganese ore production (kwmt)                             —        854        N/A            —        467        854       N/A        83%

Manganese ore sales (kwmt)                                  —        944        N/A            —        253        944       N/A       273%

Australia Manganese saleable production increased to 854kwmt in the September 2025 quarter, as we successfully executed the operational
recovery plan and ramped up export shipments as planned. FY26 production guidance remains unchanged at 3,200kwmt, subject to potential
impacts from the wet season.
Sales increased to 944kwmt in the September 2025 quarter, as shipping rates reached full capacity following the commissioning of new wharf
infrastructure.



SOUTH AFRICA MANGANESE (54.6% SHARE)
                                                                                                                            1Q26       1Q26
South32 share                                         YTD FY25   YTD FY26       YoY         1Q25       4Q25      1Q26         vs         vs
                                                                                                                            1Q25       4Q25
Manganese ore production (kwmt)                            597       551        (8%)          597       593        551       (8%)       (7%)

Manganese ore sales (kwmt)                                 590       548        (7%)          590       601        548       (7%)       (9%)

South Africa Manganese saleable production decreased by 7% (or 42kwmt) to 551kwmt in the September 2025 quarter, reflecting underground
development activity at Wessels. FY26 production guidance remains unchanged at 2,000kwmt, with planned maintenance scheduled in the
December 2025 quarter.




South32 Quarterly Report September 2025                                                                                       Page 7 of 11
NOTES
 1.     Refer to market release "Mozal Aluminium Update" dated 14 August 2025.

 2.     Payable copper equivalent production (CuEq) (kt) was calculated by aggregating revenues from copper, molybdenum, gold and silver, and dividing the total Revenue by the price of copper. FY25 realised prices for copper
        (US$4.18/lb), molybdenum (US$21.12/lb), gold (US$2,877/oz) and silver (US$31.7/oz) have been used for FY25, Q1 FY26 and FY26e.
 3.     Payable zinc equivalent production (ZnEq) (kt) was calculated by aggregating revenues from silver, lead and zinc, and dividing the total Revenue by the price of zinc. FY25 realised prices for zinc (US$2,648/t), lead
        (US$1,883/t) and silver (US$31.9/oz) have been used for FY25, Q1 FY26 and FY26e.
 4.     Production guidance for Hillside Aluminium and Mozal Aluminium does not assume any load-shedding impact on production.

 5.     Net cash number is unaudited and should not be considered as an indication of or alternative to an IFRS measure of profitability, financial performance or liquidity.

 6.     Net distributions from our material equity accounted investments (EAI) (manganese and Sierra Gorda) includes dividends, capital contributions and net repayments/
        drawdowns of shareholder loans, which are unaudited and should not be considered as an indication of or alternative to an IFRS measure of profitability, financial
        performance or liquidity.
 7.     Since inception of our capital management program, US$1.8B has been allocated to our on-market share buy-back (824M shares at an average price of A$3.06 per share) and US$525M returned in the form of special
        dividends.
 8.     Hermosa growth capital expenditure excludes lease payments for self generated power assets directly attributable to construction of infrastructure at the Taylor deposit. These self generated power costs were
        included in our capital cost estimate provided in market release "Final Investment Approval to Develop Hermosa's Taylor Deposit" dated 15 February 2024.
 9.     Refer to news release by Trilogy Metals Inc. "Trilogy Metals Applauds President Trump's Decision to Grant Permits for the Ambler Access Project to Enable the Development of Critical Minerals in Alaska" dated 6
        October 2025 (https://trilogymetals.com/news-and-media/news/trilogy-metals-applauds-president-trumps-decision-to-grant-permits-for-the-ambler-access-project-to-enable-the-development-of/).
 10.    Refer to media release "South32 backs U.S. Government move to advance critical minerals in Alaska" dated 7 October 2025.

 11.    Refer to market release "Agreement to Divest Cerro Matoso" dated 7 July 2025.

The following abbreviations have been used throughout this report: US$ million (US$M); US$ billion (US$B); grams per tonne (g/t); tonnes (t); thousand tonnes (kt); thousand tonnes per annum (ktpa); million tonnes
(Mt); million tonnes per annum (Mtpa); ounces (oz); thousand ounces (koz); million ounces (Moz); thousand wet metric tonnes (kwmt); million wet metric tonnes (Mwmt); million wet metric tonnes per annum (Mwmt
pa); dry metric tonne unit (dmtu); thousand dry metric tonnes (kdmt).

Figures in italics indicate that an adjustment has been made since the figures were previously reported. The denotation (e) refers to an estimate or forecast year.




South32 Quarterly Report September 2025                                                                                                                                                                  Page 8 of 11
OPERATING PERFORMANCE

South32 share                                YTD FY25   YTD FY26   1Q25   2Q25    3Q25   4Q25          1Q26


Worsley Alumina (86% share)

Alumina hydrate production (kt)                  932        940     932    940     931    922           940

Alumina production (kt)                          850        934     850   1,000    941    936           934

Alumina sales (kt)                               824        878     824    965     910   1,000          878

Brazil Alumina (36% share)

Alumina production (kt)                          334        354     334    348     324    334           354

Alumina sales (kt)                               326        332     326    365     323    335           332

Brazil Aluminium (40% share)

Aluminium production (kt)                         30         37      30     34      36     38            37

Aluminium sales (kt)                              25         29      25     36      31     46            29

Hillside Aluminium (100% share)

Aluminium production (kt)                        180        181     180    182     175    181           181

Aluminium sales (kt)                             175        169     175    192     171    194           169

Mozal Aluminium (63.7% share)

Aluminium production (kt)                         88         93      88     90      87     90            93

Aluminium sales (kt)                              86        100      86     88      72    105           100

Sierra Gorda (45% share)

Ore mined (Mt)                                    6.4        5.5    6.4     6.2    4.9     5.5          5.5

Ore processed (Mt)                                5.6        5.5    5.6     5.5    5.2     5.4          5.5

Copper ore grade processed (%, Cu)               0.41       0.42   0.41    0.44   0.42    0.40         0.42

Payable copper equivalent production (kt)2       22.5       24.9   22.5    24.7   20.2    22.3         24.9

Payable copper production (kt)                   17.6       18.3   17.6    19.1   17.0    17.7         18.3

Payable copper sales (kt)                        17.9       17.2   17.9    20.0   16.9    18.1         17.2

Payable molybdenum production (kt)                0.4        0.8    0.4     0.5    0.2     0.4          0.8

Payable molybdenum sales (kt)                     0.2        0.6    0.2     0.5    0.3     0.3          0.6

Payable gold production (koz)                     7.7        6.3    7.7     8.2    5.7     6.3          6.3

Payable gold sales (koz)                          7.8        5.9    7.8     8.4    6.0     6.3          5.9

Payable silver production (koz)                  151        159     151    150     131    152           159

Payable silver sales (koz)                       157        151     157    160     130    152           151




South32 Quarterly Report September 2025                                                          Page 9 of 11
South32 share                              YTD FY25   YTD FY26 2   1Q25    2Q25    3Q25    4Q25       1Q26


Cannington (100% share)

Ore mined (kwmt)                               438        585       438     561     457     504         585

Ore processed (kdmt)                           440        504       440     542     427     535         504

Silver ore grade processed (g/t, Ag)           163        148       163     241     176     175         148

Lead ore grade processed (%, Pb)                5.1        5.0       5.1     6.5     5.0     5.6        5.0

Zinc ore grade processed (%, Zn)                3.7        2.3       3.7     2.8     3.4     2.8        2.3

Payable zinc equivalent production (kt)3       48.9       48.3      48.9    76.9    48.9    59.5       48.3

Payable silver production (koz)               1,915      2,067     1,915   3,700   2,099   2,578      2,067

Payable silver sales (koz)                    2,342      2,149     2,342   3,127   2,494   3,056      2,149

Payable lead production (kt)                   19.3       21.3      19.3    30.3    17.7    25.1       21.3

Payable lead sales (kt)                        25.1       21.0      25.1    29.2    19.8    25.2       21.0

Payable zinc production (kt)                   12.1        8.3      12.1    10.8    11.0    10.6        8.3

Payable zinc sales (kt)                        12.6        7.3      12.6    10.4     9.6    13.1        7.3

Cerro Matoso (99.9% share)

Ore mined (kwmt)                              1,338      1,041     1,338   1,310   1,076   1,129      1,041

Ore processed (kdmt)                           664        736       664     732     675     714         736

Ore grade processed (%, Ni)                    1.46       1.40      1.46    1.49    1.48    1.47       1.40

Payable nickel production (kt)                  8.6        9.4       8.6     9.9     8.9     9.7        9.4

Payable nickel sales (kt)                       8.8       10.3       8.8     8.9     9.2     9.8       10.3

Australia Manganese (60% share)

Manganese ore production (kwmt)                 —         854        —      639      —      467         854

Manganese ore sales (kwmt)                      —         944        —       —       —      253         944

Ore grade sold (%, Mn)                          —         41.4       —       —       —      41.7       41.4

South Africa Manganese (54.6% share)

Manganese ore production (kwmt)                597        551       597     485     476     593         551

Manganese ore sales (kwmt)                     590        548       590     498     407     601         548

Ore grade sold (%, Mn)                         38.9       38.3      38.9    39.1    38.9    38.7       38.3




South32 Quarterly Report September 2025                                                        Page 10 of 11
Forward-looking statements
This release contains forward-looking statements, including statements about trends in commodity prices and currency exchange rates; demand
for commodities; production forecasts; plans, strategies and objectives of management; capital costs and scheduling; operating costs; anticipated
productive lives of projects, mines and facilities; and provisions and contingent liabilities. These forward-looking statements reflect expectations
at the date of this release, however they are not guarantees or predictions of future performance. They involve known and unknown risks,
uncertainties and other factors, many of which are beyond our control, and which may cause actual results to differ materially from those
expressed in the statements contained in this release. Readers are cautioned not to put undue reliance on forward-looking statements. Except
as required by applicable laws or regulations, the South32 Group does not undertake to publicly update or review any forward-looking
statements, whether as a result of new information or future events. Past performance cannot be relied on as a guide to future performance.
South32 cautions against reliance on any forward-looking statements or guidance.


FURTHER INFORMATION
INVESTOR RELATIONS                                                         MEDIA RELATIONS
Ben Baker                                                                  Jamie Macdonald
M +61 403 763 086                                                          M +61 408 925 140
E Ben.Baker@south32.net                                                    E Jamie.Macdonald@south32.net


Approved for release to the market by Graham Kerr, Chief Executive Officer
JSE Sponsor: The Standard Bank of South Africa Limited
21 October 2025




South32 Quarterly Report September 2025                                                                                               Page 11 of 11

Date: 21-10-2025 07:56:00
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