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Page 1
INVESTOR
PRESENTATION
1H25
PT Aneka Tambang Tbk
(ANTM.IJ)
Page 2
                                                                           Disclaimer



This presentation may contain "forward-looking" statements that are based on numerous assumptions regarding the Company's present and future business strategies and
the environment in which the Company will operate in the future and are not a guarantee of future performance. The future events referred to in these statements involve
known and unknown risks, uncertainties and other factors, some of which are beyond the Company's control, which may cause the Company's actual results, performance or
achievements, or general industry results to be materially different from any future results, performance or achievements expressed or implied by the forward-looking
statements. Such forward-looking statements speak only as of the date on which they are made, and the Company does not undertake any obligation to update or revise any
of them, whether as a result of new information, future events or otherwise. The Company and the Agents, and their affiliates, advisers and representatives do not make any
representation, warranty or prediction that the results anticipated by such forward-looking statements will be achieved, and such forward-looking statements represent, in
each case, only one of many possible scenarios and should not be viewed as the most likely or standard scenario. Accordingly, you should not place undue reliance on any
forward-looking statements.

This presentation also contains certain statistical data and analyses (the “Statistical Information”) which have been prepared in reliance upon information furnished by the
Company and other sources. Numerous assumptions were used in preparing the Statistical Information, which assumptions may or may not appear herein. No assurance can
be given as to the Statistical Information’s accuracy, appropriateness or completeness in any particular context, nor as to whether the Statistical Information and/or the
assumptions upon which it is based reflect present market conditions or future market performance. The Statistical Information should not be construed as either projections
or predictions or as legal, tax, financial, accounting or investment advice.

The information in this report that relates to Exploration Results, Mineral Resources or Ore Reserves is based on information compiled by Mr. Bronto Sutopo, who is a
Member of The Australasian Institute of Mining and Metallurgy. Mr. Bronto Sutopo has sufficient experience which is relevant to the style of mineralization and type of
deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for
Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr. Bronto Sutopo consents to the inclusion in the report of the matters based on his information in
the form and context in which it appears.




                                                                                                                                                                    |    2
Page 3
                     Our Leaders with Demonstrated Track Records and Deep Industry
                      Knowledge, Committed to Advancing ANTAM’s Strategic Vision




Ratih Dewihandajani L    I Dewa Wirantaya       Achmad Ardianto      Arianto S. Rudjito                  Hartono                 Handi Sutanto
     Director of              Director of           President              Director of                  Director of                 Director of
   Human Resources       Business Development        Director     Finance and Risk Management    Operation and Production           Commercial




                                                                                  Source: The Summary of Minutes of Annual General Shareholder Meeting 2025   |   3
Page 4
                                                                                         ANTAM Driving Growth Through Diversification,
                                                                                            Integration, and Operational Excellence

                                                             Reserves and Resources                                                                                  Revenue Contribution (Rp Trillions/US$ Millions)1,2
                          Nickel                                           Gold                                    Bauxite                        $1,167   $216        $45    $3,061            $485            $90                    29%

                       (millions wmt)                            (thousand dmt | ton Au)                         (millions wmt)                   18.9     3.5         0.7    49.7              7.9             1.5                       $1,726
                                                                                                                                                           15%         3%
                                                                                                                                                                                                                       30.0                        $2,000




                   1,309                    1,319                                                                                                 82%                         84%               13%             3%                         28.0
1,400
                                                     7,000                                26.47    1,200
                                                                                                                                                                                                                                                   $1,800




                                                                       22.67
                                                                                         5,583
                                                                                                                                                                                                                       25.0


1,200
                                                                                                                                                                                                                                 $1,335
                                                                       5,141
                                                                                                                                                                                                                                                   $1,600
                                                     6,000


                                                                                                                                                                                                                                                                            9%
                                                                                                   1,000



1,000
                                                     5,000                                                                                                                                                                       21.7              $1,400




                                                                                                    800                                                                                                                20.0



                                                                                                                                                                                                                                                                                $253
 800
                                                     4,000
                                                                                                                  547                       553                                                                                                    $1,200

                                                                                                                                                                                                                                                                   4.2

                                                                                                                                                                                                                                                                                  4.1        $255




            490                    494
                                                                                                    600

 600
                                                     3,000                                                                                                                                                             15.0                        $1,000          4.1                       $250




                                                                                                                                                                                                                                                                                                               6%
                                                                5.72              5.16              400                                                    $1,427                               $3,636
 400

                                                                                                                                 198
                                                                                                                                                           23.2                                 59.0
                                                                                                                                                                                                                                                                   4.0                       $245
                                                     2,000


                                                               860                805                                                                                                                                                                                                                                $46
                                                                                                                                                                                                                                                   $800




                                                                                                           122
                                                                                                                                                                                                                                                                         $232                                        0.8
                                                                                                                                                                                                                       10.0                                        3.9                       $240
                                                                                                    200
 200                                                 1,000
                                                                                                                                                                                                                                                   $600




                                                                                                                                                                                                155%
                                                                                                                                                                                                                                                                          3.8
                                                                                                                                                                                                                                                                                                    0.8                    $47



                                                                                                                                                                                                                                                                   3.8                       $235                          $47
                                                                                                                                                                                                                                                                                                    0.8




                                                                                                                                                                                                                                                                                                          $44
                                                                                                                                                                                                                                                                                                                           $46
   -                                                    -                                             -                                                                                                                                                                                             0.7
                                                                                                                                                                                                                                                   $400
                                                                                                                                                                                                                                                                                                                           $46


                                                                                                                                                                                                                                                                                                    0.7




               2023                    2024                      2023                  2024                 2023                     2024                                                                                                                                                                 0.7
                                                                                                                                                                                                                        5.0                                        3.7                       $230                          $45



                                                                                                                                                                                                                                                                                                    0.7                    $45



                                                                                                                                                                                                                                                                                                                           $44
                                                                                                                                                                                                                                                                                                    0.7
                                                                                                                                                                                                                                                   $200

                                                                                                                                                                                                                                                                   3.6                       $225                          $44

                                                                                                                                                                                                                                                                                                    0.7

                                                                                                                                                                                                                                                                                                                           $43


                                                                                                                                                                                                                                                                                                    0.7
                                                                                                                                                                                                                                                                                                                           $43




                                                              Reserves                            Resources
                                                                                                                                                                                                                             -                     $-              3.5                       $220   0.7                    $42




                                                                                                                                                           1H24                                 1H25                               1          2                          1Q25 2Q25                        1Q25 2Q25

                         Open Pit                                         Underground                                   Open Pit                                    Profitability by Segment (Rp Trillions/US$ Millions)1,2
                         Nickel Mine                                      Gold Mine                                     Bauxite Mine                                                                                                                                                    *Note: Exclude HO and
                                                                                                                                                   $64      $9          $6     $217              $20            $199                                                                            other segment
                                                                                                                                                   1.0     0.1         0.1     3.5               0.3            3.2    10.0                        $400
                                                                                                                                                                                                                                                            10.0                        $400
                                                                                                                                                                                                                                                                                                    4.0                    $200




                                                                                                                                                   81%     11%         8%      50%               4%             46%
                        Ferronickel Plant                                 Gold Leaching
                                                                                                                                                                                                                                                                                                                           $180
                                                                                                                                                                                                                                                             9.0
                                                                                                                                                                                                                        9.0

                                                                                                                                                                                                                                                                                                    3.5
                                                                                                                                                                                                                                                                                        $350
                                                                                                                                                                                                                                                   $350




                                                                          Plant                                       Chemical
                                                                                                                                                                                                                                                                                                                           $160
                                                                                                                                                                                                                                                             8.0
                                                                                                                                                                                                                        8.0




                        Electric Vehicle                                                                                                                                                                                                                                                $300
                                                                                                                                                                                                                                                                                                    3.0




                                                                                                                      Grade Alumina
                                                                                                                                                                                                                                                   $300




                        Battery (EVB)                                     Precious Metal
                                                                                                                                                                                                                                                                                                                           $140
                                                                                                                                                                                                                                                             7.0
                                                                                                                                                                                                                        7.0




                                                                                                                      Plant                                                                                                                                                                         2.5




                        Ecosytem                                          Refinery and
                                                                                                                                                                                                                                                   $250                                 $250




                                                                                                                                                                                                                                                                            70%
                                                                                                                                                                                                                                                                                                                           $120
                                                                                                                                                                                                                        6.0                                  6.0




                        Integrated Plant                                  Manufacturing                               Smelter Grade                                                                                     5.0


                                                                                                                                                                                                                                       12%        $200      5.0




                                                                                                                                                                                                                                                                                $137
                                                                                                                                                                                                                                                                                        $200
                                                                                                                                                                                                                                                                                                    2.0                    $100




                       *Development phase
                                                                          Plant                                       Alumina Plant                         $79                                 $440
                                                                                                                                                                                                                                 $105      $93                                    2.2
                                                                                                                                                           1.3                                  7.1
                                                                                                                                                                                                                                                                                                                           $80
                                                                                                                                                                                                                        4.0                                  4.0


                                                                                                                                                                                                                                                                                                    1.5
                                                                                                                                                                                                                                                   $150                                 $150




                                                                                                                      *Commisioning phase
                                                                                                                                                                                                                                  1.7                                    $81
                                                                                                                                                                                                451%
                                                                                                                                                                                                                        3.0



                                                                                                                                                                                                                                           1.5     $100
                                                                                                                                                                                                                                                             3.0




                                                                                                                                                                                                                                                                         1.3            $100        1.0
                                                                                                                                                                                                                                                                                                               40%
                                                                                                                                                                                                                                                                                                                           $60




                                                                                                                                                                                                                                                                                                          $12         $7
                                                                          Precious
                                                                                                                                                                                                                        2.0                                  2.0                                                           $40




                        Nickel Ore                                                                                    Bauxite                                                                                                                      $50                                  $50         0.5




                                                                                                                                                                                                                                                                                                          0.2        0.1
                                                                          Metals
                                                                                                                                                                                                                        1.0                                  1.0                                                           $20




                        Ferronickel                                       Bar 999.9                                   Alumina                                                                                            -                         $-         -                         $-           -                     $-




                                                                                                                                                           1H24                                 1H25                             1Q25 2Q25                               1Q25 2Q25                        1Q25 2Q25

        1 Exchange rate USD/IDR as of June 2025= 16,233 | 2 1H25 Financial Statement                                                                                   yoy             Nickel            Gold                    Bauxite           qoq                                                     |          4
Page 5
                                                                Strategically Located Operations Enabling ANTAM
                                                                  to Support Indonesia’s Mining Downstreaming
             Tayan                                     Tayan                                      Mempawah                             West Kalimantan                                     Pongkor                    10 Logam Mulia Precious
 7                                        7                                             8                                       8                                        9
          Bauxite Mine                               CGA Plant                                     SGA Plant                         Mining Development                                   Gold Mine                      Metal Refinery and Mfg
Reserves      : 108 million wmt         Ownership       : 100%                        Installed cap. : 1 million ton p.a.     Capacity       : 3 million wmt p.a.       Reserves             : 166 k.oz | 5.16 t Au Refinery cap. : 100 tonnes p.a.
Resources     : 193 million wmt         Installed cap. : 300 kton p.a.                Status         : Commisioning           Status         : Pre construction         Resources            : 649 k.oz | 20.19 t Au Mfg’ cap.    : ~30 – 40 tonnes p.a.

                                                                                                                                                                                                                      11      Gresik Precious
                                                                                                                                                                                                                           Metal Manufacturing
                                                                                                                                                                                                                    Mfg’ cap.       : ~30 tonnes p.a.
                                                                                                                                                                                                                    Status          : Pre-Construction
                                 Medan
                                      Kuala Tanjung



                                                                                                                                                                    5                 3
                                                             Bintan
                                                                            8           Mempawah                                                                               Maba
                                               Pekanbaru                                                                                                       Weda
                                                                                Pontianak Tayan                                                                                          6
                                                                                                             IK Nusantara                                                          Gag
                                                                                 7                               Balikpapan
                                                                                                                                                                            Obi             4
                                                       Pangkalpinang
       Nickel                                                                                                                      Soroako
                                                                                     Ketapang                                                 Morowali
                                                             Palembang
                                                                                                                                     North
       Bauxite                                                                                                                      Konawe       Morosi
                                                                                                                                                           2                                                        Tembagapura
                                                                                                                                     Kolaka
                                                                                                                              Makassar
       Precious Metals                                                 10
                                                                                                                                     Bantaeng
                                                            Tangerang   Jakarta                         11                                        1
                                                                    
                                                                  Bogor   Bandung          Semarang Gresik
                                                                                                      Surabaya
                                                                                            Yogyakarta
      Development phase                                                     9                                     Denpasar

      Butik Emas LM (Gold Boutique)                                                                                                                                                                                   6 PT Sumber Daya Arindo
                                                                                                                                                                                                                           (SDA) Nickel Mine
                                                                                                                                                                                                                    Reserves       : 228 million wmt
                                                                                                                                                                                                                    Resources      : 294 million wmt
            Kolaka                        2      North Konawe                                   North Maluku                   4        PT Gag Nikel                      5 PT Jiu Long Metal Industri                    PT Nusa Karya Arindo
  1                                                                                     3                                                                                                                             6
          Nickel Mine                             Nickel Mine                                    Nickel Mine                          (GN) Nickel Mine                               NPI Plant                             (NKA) Nickel Mine
Reserves        : 20 million wmt        Reserves        : 49 million wmt              Reserves         : 13 million wmt       Reserves        : 56 million wmt          Ownership        : 30%                      Reserves        : 128 million wmt
Resources       : 58 million wmt        Resources       : 234 million wmt             Resources        : 39 million wmt       Resources       : 320 million wmt         Installed cap.   : 28 kTNi p.a.             Resources       : 374 million wmt
              Kolaka                                                                            East Halmahera                                                           5      PT Weda Bay Nickel                    6     EVB Ecosystem
 1                                                                                      3
         Ferronickel Plant                                                                     Ferronickel Plant                                                            NPI Plant and Nickel Mine                      Integrated Plant
Capacity         : 27 kTNi p.a                                                        Capacity          : 13.5 kTNi p.a                                                 Ownership        : 10%                      ANTAM Scope : RKEF, HPAL
Status           : Commercial                                                         Status            : Commisioning                                                  Installed cap.   : 30 kTNI p.a.             Status         : Pre-Construction
Page 6
                                    ANTAM Solid Fundamental Backed by Government and Investor
                                                             Trust

            ANTAM Gains Growing Foreign Interest                         ANTAM Leverages MIND ID’s Strategic Holding Framework to Unlock Potential Synergy
                                                                 3,040


                                  97%
1,545

                                                                                                                                           99%
                                                                                                                 1% Series A
                                                                                                                  Dwiwarna
                                                                                                                owned by GoI
  Jan-25        Feb-25   Mar-25          Apr-25   May-25      Jun-25             1 Series A                                        PT Danantara
                                                                                 Dwiwarna                                        Asset Management
                                  Share Price                                   owned by GoI

                                                                                                                                          99,99%
   12%           12%      12%            15%       19%        21%                                                1 Series A
   23%           23%      23%                                                                                    Dwiwarna
                                         20%       16%        14%                                               owned by GoI


   65%           65%      65%            65%       65%        65%



  Jan-25        Feb-25   Mar-25        Apr-25     May-25     Jun-25
                                                                                                                  65%          100%                 34%
                                                                                     21%
         ANTAM Preserve Investment-Grade Profile

        INDONESIA               MIND ID                  ANTAM                 14%                    65%

        Moody’s Baa2        Moody’s Baa2
        Stable outlook      Stable outlook           Pefindo idAA                                               65.93%         51.24%               100%
                                                    Stable outlook
    Fitch Rating BBB      Fitch Rating BBB-
     Stable outlook        Positive outlook
                                                                             MIND ID       Domestic   Foreign
                                                                                                                                                             |   6
Page 7
                                           ANTAM’s Consistent Commitment to Advancing ESG Excellence


            Environment Performance1                                                                                                             Occupational Health and Safety1
                                                     Total Trees Planted                      Safety Performance                                       Frequency Rate (FR)
                            Program for                                                       Zero Fatal
                            Environmental            28,996                 trees             Accident                         Target: Zero            0.10            Target: 0.17



                            Management and
                            Compliance               Total Emission                           Total Recordable Incident Rate (TRIR)                    Severity Rate (SR)
                                     Ministry of

                                                     0.8            12%
                                                                                              0.04                                                     21.25
                                                                                                                              Target: 0.06                                     Target: 114
                                     Environment
                                                              million tons CO2 eq
                             • Gold Proper
                             • Green Proper                                                 1 1H25 Internal Report (unaudited)
                             • Blue Proper           GHG Emission Reduction


                                                     9.35%                 Target: 2.70%


                                                                                                                                                        Contribution to Nation2
                                                     Total Energy Consumption                 Non Tax and Duty                                         Taxation (Central)


                                                     4.3              33%

                                                              million tons GJ                 Rp491                          billion                   Rp1.9                trillion
                  Good Mining Practices
                  and Operational                    Reclamation                              Dividend*                                                Local Taxation and Retribution
                  Excellence Recognition
                                                     77.19 Ha                                 Rp3.6                                                    Rp5.1
                                                                       Target: 125.41 Ha

                         Ministry of Energy and                                                                        trillion
                                                                                                                                                                            billion
                         Mineral Resources                                                    *According to the AGMS 2024 (12th June 2025)


                   • Utama Awards                    Environmental Funds dan Investments    2 1H25 (limited review)
                   • Pratama Awards

                                                     Rp90.49                      billion


1 1H25 Internal Report (unaudited)                                                                                       Source: Internal Report, Financial Statement 1H25 (limited review)   |   7
Page 8
                                       ANTAM Advancing Strong Governance, Risk Excellence,
                                               and Renewable Energy Leadership

                   ICDX Renewable Energy Certificate Market
                   Indonesia Commodity Derivative Exchange (2025)
                   • Pioneer of the Indonesia Renewable Energy Certificate Market
                   • Most Valuable Member Digital Gold



                   94%
                                Total Renewable Energy Composition at ANTAM’s Precious
                                Metals Processing and Refinery Unit (UBPP Logam Mulia)



              ASEAN CG Scorecard            84.74%
                                            ANTAM are recognized in ASEAN Corporate
                                            Governance Award as one of the corporate
                                            governance excellence among the top performing
                                            public listed companies (PLCs) in the ASEAN region.
                                            It shows that ANTAM operates with transparency,
                                            accountability, fairness, and responsibility.



ANTAM Improves ESG Risk Rating Through Enhanced Sustainability Practices

  2023      2024       1Q25         2Q25
                                                    35.2              High
                                                                      Risk


                                                    Risk rating as of 1 Jul 2025

                                                         Risk Ranking
                                                          Diversified
                       35.9          35.2                   Metals
  40.5      42.1
                                                         61 out of 221
                                                                                                  |   8
Page 9
Operational
Highlight
Production and Sales Performance


                                   |   9
Page 10
                                                                        Gold Production and Sales


                               Production Volume                                                                                              Sales Volume and Average Selling Price
                                            (ton)                                                                                                            (ton | USD/t.oz)                                  3,211
                                                                                                                                                                                       2,988
                                                                                                                                      2,580                            2,839           57.1
                                                                                                                                                             2,746
                                                                                                                                                 2,643
                                                                                                                                                                                                    2,297
                                                                                                                                      43.8                              41.5           15.6
                                                                                                                        2,038

                                                                                                                                                                         13.7
                                                                                                                                                                                                               29.3
                                                                                                                         26.1                                 27.8

                                                                                                                                                                                                    16.0       15.6
                                                                                                                                                              15.2
                                                                                                                                                  12.6
  1.2      1.0                                        0.8         1.0
                                    0.6                                                                                                                                                              8.9
                     0.3                                          0.2
                                                                              0.4           0.4
                                                       0.2                                                                                                                                                     13.7
                                     0.3                                                     0.2                                                                                                     7.1

 2023      2024     3Q24          3Q-4Q24       3Q-1Q25       TTM 2Q25       1H24          1H25                         2023          2024        3Q24      3Q-4Q24   3Q-1Q25     TTM 2Q25          1H24      1H25


                                  Sales Revenue1                                                                                                         Sales Destination 1H25
                              (IDR trillions, USD millions)


           $3,548                                             $5,442
          Rp57.6                                             Rp88.3                                                                                                      Wholesaler                          69%
                                                                                                                                                                                                            68%
                                                    $3,721
                                                              27.9
                                               Rp60.4                                     $3,052
                                                                                                                                                                            Retail
 $1,608
                                   $2,390                                               Rp49.5
                                                                                                                                                                          Boutiques        23%
                                  Rp38.8            21.6
Rp26.1                                                                                                                                                                   Corporate,
                     $1,041                                                $1,160         27.9
                    Rp16.9          21.9                                  Rp18.8                                                                                         Digital and           9%
                                                                                                                                                                           Others
                                                                           11.2           21.6
                                                                            7.7

 2023      2024     3Q24         3Q-4Q24       3Q-1Q25 TTM-2Q25           1H24           1H25

                                                                                    1 Exchange rate USD/IDR as of June 2025= 16,233                                                                           |        10
Page 11
                                                                Nickel Ore Production and Sales


                         Production Volume                                                                                                Sales Volume and Average Selling Price
                               (millions wmt)                                                                                                         (millions wmt | USD/wmt)
                                                                                                                                                                                                        49.8
                                                                                                                46.6                                                                   47.2
13.5                                                     14.9
                                                                                                                                                                          44.1         13.2
                                                                                                                                41.1                        42.9
                                                          4.5                                                  11.7                          42.7                                               37.2
                                           10.4
         9.9                                                                      9.1                                                                                                   4.4
                                                                                                                                                                          8.8
                                                                                                                                8.4
                                            4.6
                              5.7                                                  4.5                                                                                    3.8
                                                                                                                                                                                                            8.2
                                                                                                                                                             5.0
                                                                     4.2
                 3.1           2.6                                                                                                                                                                          4.4
                                                                                                                                              2.4            2.6                                 3.4
                                                                     2.7
                                                                                   4.6
                                                                                                                                                                                                  2.4       3.8
                                                                     1.4                                                                                                                          1.0
2023    2024    3Q24        3Q-4Q24     3Q-1Q25     TTM-2Q25        1H24         1H25                          2023            2024          3Q24          3Q-4Q24     3Q-1Q25       TTM-2Q25   1H24    1H25


                            Sales Revenue1                                                                                                          Sales Destination 1H25
                        (IDR trillions, USD millions )


                                                         $624
                                                     Rp10.1                                                                                   Weda
$512
Rp8.3                                     $383                                    $413                                                                               Domestic                           100%
        $331                                             3.91
                                         Rp6.2                                  Rp6.7                                                               Obi
        Rp5.4                                                                                                                 Morowali
                              $211

                 $96
                             Rp3.4         2.8                       $120          3.9                                                                                 Export    -
                                                                                                                                Morosi
                Rp1.6          1.9                                  Rp2.0
                                                                     1.4           2.8                              Bantaeng


2023    2024    3Q24       3Q-4Q24      3Q-1Q25     TTM-2Q25        1H24         1H25

                                                                            1 Exchange rate USD/IDR as of June 2025= 16,233                                                                             |         11
Page 12
                                                                 Ferronickel Production and Sales


                         Production Volume                                                                                              Sales Volume and Average Selling Price
                                (kilo ton Ni)                                                                                                        (kilo ton Ni | USD/ton Ni)
                                                                                                              14,816
                                                                                                                                           13,590                                                   13,788
                                                                                                                              13,253                   13,228
                                                                                                                                                                    12,953
                                                                                                                                                                                    12,930
                                                                                                                                                                                                                  12,326
21.5    20.1                                             19.0                                                  20.1           19.5                                       17.4        18.4
                                          14.4
                                                          4.6       10.2                                                                                 12.6                            0.9
                              9.9                                                9.1                                                                                     4.8
                                           4.5
                 5.1                                                                                                                        4.8           7.8                                         6.9          5.8
                              4.9                                    5.4          4.6
                                                                                                                                                                                                                   0.9
                                                                     4.8          4.5                                                                                                                              4.8

2023    2024    3Q24       3Q-4Q24      3Q-1Q25     TTM-2Q25        1H24        1H25                           2023           2024         3Q24        3Q-4Q24      3Q-1Q25        TTM-2Q25          1H24         1H25


                            Sales Revenue1                                                                                                          Sales Destination 1H25
                        (IDR trillions, USD millions )


                                                                                                                                                                                South
                                                                                                                                                                                Korea                           40%
                                                                                                                         Netherlands                                                                             86%
                                                                                                                                              China      South Korea
                                                                                                                                                                                China                        31%
                                                         $281
 $283
         $253                 $210
                                           $270                                                                                             India                               India                      26%
Rp4.6                                                    Rp3.7
        Rp4.1    $113                    Rp3.6                                    $71
                            Rp2.6                         0.2        $46                                                                                                        Others         2%
                                                                                                                                                                                               3%
                                           1.0                      Rp1.6
                Rp1.0                                                           Rp1.2
                              1.6
                                                                                  1.0

2023    2024    3Q24       3Q-4Q24     3Q24-1Q25 TTM-2Q25           1H24        1H25

                                                                            1 Exchange rate USD/IDR as of June 2025= 16,233                                                                                       |        12
Page 13
                                                                  Bauxite Production and Sales


                          Production Volume                                                                                         Sales Volume and Average Selling Price
                                (millions wmt)                                                                                                      (millions wmt | USD/wmt)

                                                           2.2                                                                              32.3                                                  31.6
                                                                                                                                                                                  29.5
 2.0                                                                                                                                                   26.6        26.8
                                                                                                                             26.4
                                                                                                                20.4                                                              1.8
                                                            0.7
                                            1.4                                  1.4                            1.5
         1.3                                                                                                                                                                       0.5
                                                                                                                                                                    1.2
                                             0.7                                                                                                                                                   1.0
                                0.8                                              0.7
                                                                                                                                                                     0.5
                                                                    0.5                                                      0.7                         0.7                                           0.5

                                0.7                                                                                                        0.1           0.6
                  0.1                                               0.4          0.7
                                                                                                                                             …                                                         0.5
                                                                    0.2                                                                                                                      0
                                                                                                                                            0.1
2023    2024     3Q24        3Q-4Q24     3Q-1Q25      TTM-2Q25     1H24        1H25                           2023           2024          3Q24       3Q-4Q24     3Q-1Q25       TTM-2Q25   1H24    1H25


                             Sales Revenue1                                                                                                        Sales Destination 1H25
                         (IDR trillions, USD millions )

                                                           $52
                                                          Rp0.9

                                            $36            0.3                                                 Bintan         Mempawah
                                          Rp0.6                                  $33
 $29
                                                                              Rp0.5                                                                            Domestic                           100%
Rp0.5
         $19                   $19
                                            0.3
        Rp0.3                                                                    0.3
                              Rp0.3
                                                                                                                                                                 Export     -
                  $3            0.3
                                                                                 0.3
                Rp0.05
                 0.05                                               0.00
2023    2024     3Q24       3Q-4Q24      3Q-1Q25     TTM-2Q25      1H24        1H25

                                                                           1 Exchange rate USD/IDR as of June 2025= 16,233                                                                         |         13
Page 14
Financial Highlight
Income Statement and
Statement of Financial Position


                                  |   14
Page 15
                                         ANTAM Continues to Deliver High Revenue Record
                                        Through Strong Market and Operational Performance

                                  Revenue                                                                                                                Gross Profit
                           (IDR billion, USD million)                                                         15%                                   (IDR billion, USD million)
                                                                                                                                                                                                     14%
                                                          6,470                                                                                                                    12%
                                                        105,023                                                                                                                     784
                                           4,445                                                                                                                     11%          12,732
         4,262                            72,155         32,868                                                                              10%         10%
         69,912                                                                   3,636                                     9%                                                               9%
                               2,834                                                                                                                                 501           4,601             507
                                                                                 59,020
                                           26,152                                                                           400                                     8,131                            8,238
 2,529                        46,003                                                                           389
41,048                                                                                                        6,315         6,498
                                                                                  32,868                                                                 277        3,636
                  1,233                                                                                                                                                                              4,601
                              25,991                               1,429                                                                               4,495
                  20,012                                           23,189                                                                    129
                                                                                                                                                                                             123
                                                                                                                                         2,100          2,395
                                                                   14,569                                                                                                                   2,003
                                                                                  26,152                                                                                                             3,636
                                                                    8,621                                                                                                                   1,753

2023     2024     3Q24       3Q-4Q24     3Q-1Q25        TTM-2Q25   1H24           1H25                        2023          2024         3Q24         3Q-4Q24     3Q-1Q25        TTM-2Q25   1H24     1H25


                                    EBITDA                                                                                                               Net Income
                           (IDR billion, USD million)                                                                                               (IDR billion, USD million)
  16%
                                                                                                                                                                                                         9%
                                                                                  12%
                                                                                                                7%                                                                 7%        7%
                                           11%            11%       10%
          10%
                               9%                          703
                                                                                                                                                                                    461
                    8%                                                                                                       6%                                      6%            7,483
                                                         11.420
                                            467                                                                                                          5%           287                                317
          414                                             3,837                    438                                       237
 403                                                                                                                                                                               2,820
                                          7,583                                  7,113                                                        4%                    4,663                            5,143
6,549    6,727                  265                                                                             190         3,852
                                                                                                                                                         144
                               4,308       3,275                                                              3,078
                    93                                               149          3,837                                                                 2,339        2,323                    93         2,820
                                                                                                                                              44
                  1,512                                            2,419                                                                                                                    1,513
                               2.795                                                                                                         717        1,622
                                                                    1,891         3,275                                                                                                      1,302       2,323


2023     2024     3Q24       3Q-4Q24     3Q-1Q25        TTM-2Q25    1H24         1H25                         2023          2024             3Q24     3Q-4Q24     3Q-1Q25        TTM-2Q25    1H24     1H25

                                                                            Exchange rate USD/IDR as of June 2025= 16,233           Margin                                                           |           15
Page 16
          Strong Financial Capacity Enabling ANTAM’s Strategic Growth Plans


         Cash & Cash Equivalents                                                                                                Total Assets
            (IDR billion, USD million)                                                                                  (IDR billion, USD million)

                                                                                                                                                         14%
                                                                                                          7%           9%
                                                                                                                                                6%       2,980
                                                                                                                       1,601
                                                                                                         2,640                                  2,414   48,378
                                                                                                        42,851        44,523
                                                                                                                                               39,182



 567                                     539    648
            293
9,209                               8,752      10,514
           4,752
                                               3,598
                                    11,857     6,916

2023       2024                     1H24       1H25                                                      2023          2024                     1H24     1H25



        Total Interest-Bearing Debt                                                                                             Total Equity
            (IDR billion, USD million)                                                                                  (IDR billion, USD million)




                                    1.09
                                                                                                                                                        21%
                                                                                                         10%          12%
                                                                                                                                                7%
                                                                                                                                                         2,076
0.38                                                                                                     1,920        1,984                     1,829
                                                0.03                                                    31,166        32,200                            33,706
 154       0.00                          163                                                                                                   29,692
2,508                                2,650
                                                 15
                                     1,237
                                      -
             -                                  250
                                     1,413

2023       2024                      1H24      1H25                                                     2023          2024                     1H24     1H25

                                                        Exchange rate USD/IDR as of June 2025= 16,233   Debt/Ebitda   TTM-ROA      TTM-ROE                       |   16
Page 17
Development
Highlight
Growth Story


               |   17
Page 18
                        Gold Bar Sales and Purchase Agreement between PTFI and ANTAM




Location:

East Jakarta, Jakarta
Gresik, East Java
Sales Quantity:

Up to ± 30 tons of Gold Bar p.a.
99.99% Au




                                                                                       |   18
Page 19
                                  Gresik Precious Metal Manufacturing Plant



Location:

Gresik, East Java
Ownership

100% ANTAM
Expected Product Output:

Up to 5 million pcs p.a.
gold minted bars and coins

Expected Plant Capacity:

~30 ton of 99.99 Au
Est. Total Investment:

~Rp 1.1 Triliun eq. ~USD 70 Mio
Status:

Pre-Construction




                                                                              |   19
Page 20
                       Electric Vehicle Battery Ecosystem Development Project - RKEF JV



Location:

Buli, East Halmahera
Partners:

CBL Consortium (CATL, Brunp, Lygend)
Ownership:

40% ANTAM
Capacity:

88,000 ton p.a. NPI
Timeline:

2025 – 2027
Est. Project Costs:

~US$1.4 billion
Status:

Pre – EPC & Pre – Project Financing
Project Scope:

RKEF Plant 8 Lines and Industrial Park


                                                                                          |   20
Page 21
                       Electric Vehicle Battery Ecosystem Development Project - HPAL JV



Location:c

Buli, East Halmahera
Partners:

CBL Consortium (CATL, Brunp,
Lygend)
Ownership:

30% ANTAM
Capacity:

55,000 ton p.a MHP
Timeline:

2026 – 2028
Est. Project Costs:

~US$1.9 billion
Status:

JVCo Establishment
Project Scope:

HPAL Plant

                                                                                          |   21
Page 22
                              Smelter Grade Alumina (SGA) Refinery Mempawah Project




Location:

Mempawah,
West Kalimantan
Ownership:

40% ANTAM, 60% INALUM
Capacity:

1 mio ton p.a.
Est. Total Investment:

~USD900 million
Est. Operational Life-Time:

20 years
Status:

Commissioning




                                                                                      |   22
Page 23
INVESTOR RELATIONS OFFICE
Gedung Aneka Tambang Tower A
Jl. Letjen. T.B. Simatupang No. 1
Lingkar Selatan, Tanjung Barat
Jakarta 12530, Indonesia

(62-21) 789 1234 (62-21) 789 1224

For any inquiries, please contact us through:
investor.relation@antam.com

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Names mentioned 13 people and organisations named in the text · linked when the evidence is strong

linked org Aneka Tambang Tbk p.1 ×2
linked person I Dewa Wirantaya p.3
linked person Achmad Ardianto p.3
linked person Handi Sutanto p.3
possible person Ratih Dewihandajani L p.3
unresolved person Bronto Sutopo p.2 ×3
unresolved org PT Sumber Daya Arindo p.5
unresolved org PT Gag Nikel p.5
unresolved org PT Jiu Long Metal Industri p.5
unresolved org PT Nusa Karya Arindo p.5
unresolved org PT Weda Bay Nickel p.5
unresolved org PT Danantara Dwiwarna p.6
unresolved org Ministry of Energy p.7

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