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Page 1
   PT TBS Energi Utama Tbk
Kuartal-II/
   PT TBSthe  2nd Quarter
            Energi        of 2026
                   Utama Tbk
 Kuartal-I/the
Kuartal-II/ the21ndQuarter
                    Quarterofof2026
                                2026
Page 2
         KATA PENGANTAR                              INTRODUCTION

PT TBS Energi Utama Tbk (“Perseroan”)     PT TBS Energi Utama Tbk (the
adalah perusahaan induk dari beberapa     "Company") is the holding company of
perusahaan di sektor pengelolaan          several companies in the waste
limbah, energi terbarukan, mobilitas      management,       renewable    energy,
listrik, dan juga pertambangan batu       electric mobility, and coal mining
bara. Perusahaan pertambangan batu        sectors. The Company's coal mining
bara di bawah Perseroan melakukan         operations are located in the
kegiatan penambangan di daerah            Sangasanga area, Kutai Kartanegara
Sangasanga,        Kabupaten      Kutai   Regency, East Kalimantan Province,
Kartanegara, Provinsi Kalimantan Timur,   where the concession areas of its three
di mana area konsesi ketiga anak          subsidiaries are located adjacent. All
perusahaan terletak berdampingan.         supporting infrastructure for mining
Seluruh     infrastruktur   pendukung     operations, such as coal haul roads,
operasional penambangan seperti jalan     offices, workshops, a dedicated coal
angkut       batubara,     perkantoran,   port, and other infrastructure, are
perbengkelan,      pelabuhan    khusus    located in Kutai Kartanegara Regency,
batubara dan infrastruktur lainnya        East Kalimantan Province.
berada di daerah Kabupaten Kutai
Kartanegara, Provinsi Kalimantan Timur.

Perseroan mempunyai 3 (tiga) anak         The     Company       has   3   (three)
perusahaan yang bergerak di bidang        subsidiaries engaged in the coal mining
pertambangan batubara, terletak di        sector, located in the Sangasanga area,
daerah Sangasanga, Kabupaten Kutai        Kutai Kartanegara Regency, East
Kartanegara, Provinsi Kalimantan Timur.   Kalimantan.         The      company's
Adapun ketiga      anak perusahaan        subsidiaries are:
Perseroan tersebut adalah:
1. PT Trisensa Mineral Utama (TMU)        1. PT Trisensa Mineral Utama (TMU)
2. PT Indomining (IM)                     2. PT Indomining (IM)
3. PT Adimitra Baratama Nusantara         3. PT Adimitra Baratama Nusantara
   (ABN)                                     (ABN)

Dalam rangka memenuhi Ketentuan           In order to comply with the Provisions
III.1.6, Peraturan Nomor I-E tentang      III.1.6,  Regulation     Number     I-E
Kewajiban Penyampaian Informasi,          concerning      Information   Delivery
Lampiran Keputusan Direksi PT Bursa       Obligations, Attachment to the Decree
Efek       Jakarta   Nomor      Kep-      of the Board of Directors of PT Bursa
00066/BEI/09-2022       tanggal   30      Efek      Jakarta     Number     Kep-
September 2022, maka bersama ini          00066/BEI/09-2022               dated
kami sampaikan Laporan Kegiatan           September 30, 2022, we here jointly
Eksplorasi Perseroan untuk Kuartal-2      submit the Company's Exploration
2026.                                     Activity Report for the 2nd Quarter of
                                          2026.
Page 3
                  BAB I                                        CHAPTER I
              PENDAHULUAN                                    INTRODUCTION


I. Latar Belakang                               I. Background

Batubara merupakan bahan galian yang            Coal is an economically valuable
bernilai ekonomis, sehingga diminati oleh       excavation material, so it is in demand by
investor asing maupun investor dalam            foreign investors as well as domestic
negeri. Usaha pertambangan batubara             investors. The coal mining business has
mempunyai prospek sebagai sektor                prospects as a mainstay sector of oil and
andalan     pengganti     migas    dalam        gas replacement in building the economy
membangun perekonomian Kalimantan               of East Kalimantan in the future. It is based
Timur di masa mendatang. Hal ini                on available coal resources and potentials,
didasarkan pada sumber daya dan potensi         marketing prospects as well as local
batubara     yang    tersedia,   prospek        government policy support.
pemasaran serta dukungan kebijakan
pemerintah daerah.

Pengusahaan pertambangan karena sifat           Strive of the Mining business because of
kegiatannya      pada    dasarnya      selalu   the nature of its activities basically always
menimbulkan perubahan pada alam                 cause changes in the nature of its
lingkungannya. Di balik perubahan pada          environment. Behind the changes in nature
alam dan lingkungannya, suatu kenyataan         and the environment, it is also a fact that
pula bahwa usaha pertambangan telah             mining businesses have succeeded in
berhasil   meningkatkan       kesejahteraan     improving human welfare by providing raw
manusia dengan menyediakan bahan baku           materials for industry, energy, and others.
untuk industri, energi, dan lain-lain.
Page 4
                  Gambar 1.1. Lokasi Tambang PT TBS Energi Utama Tbk
                      Image 1.1. PT TBS Energi Utama Tbk Mining Site




Gambar 1.2. Skema Kegiatan Operasional Penambangan PT TBS Energi Utama Tbk
           Image 1.2. Scheme of Mining Operations of PT TBS Energi Utama Tbk




     Gambar 1.3. Lokasi Konsesi Ketiga Anak Perusahaan PT TBS Energi Utama Tbk
    Image 1.3. Concession area of The Three Subsidiaries of PT TBS Energi Utama Tbk
Page 5
I. 1. PT TRISENSA MINERAL UTAMA (“TMU”)

TMU merupakan perusahaan tambang            TMU is a coal mining company with an
batubara dengan daerah penambangan          administrative mining area including the
secara administratif termasuk wilayah       sub-districts of Loa Janan, Sangasanga,
Kecamatan Loa Janan, Sangasanga, Muara      Muara Jawa, Kutai Kartanegara Regency,
Jawa, Kabupaten Kutai Kartanegara           East Kalimantan Province with an area of
Provinsi Kalimantan Timur dengan Luas       3,414 ha and the 2010 KTN area code 3133
wilayah 3.414 ha dan kode Wilayah KTN       OP. TMU has received approval to carry out
2010 3133 OP. TMU telah mendapat            mining activities and sell excavated
persetujuan untuk melakukan aktivitas       products with the Decree of the Minister of
penambangan dan penjualan hasil galian      Investment/Head of the Investment
dengan Keputusan Menteri Investasi/         Coordinating         Board        Number:
Kepala Badan Koordinasi Penanaman           1098/1/IUP/PMDN/2022           concerning
Modal Nomor: 1098/1/IUP/PMDN/2022           approval for granting extensions of mining
Tentang       persetujuan   Pemberian       business permits at the production
Perpanjangan Izin Usaha Pertambangan        operation activity stage for coal
Pada Tahap Kegiatan Operasi Produksi        commodities to PT Trisensa Mineral Utama
untuk Komoditas Batubara kepada PT          (area code 3364023032014055) on
Trisensa Mineral Utama (kode wilayah        September 21, 2022.
3364023032014055) pada tanggal 21
September 2022.

Pada Kuartal-2 2026, pelaksanaan            In the 2nd Quarter of 2026, the
pekerjaan yang dilakukan oleh TMU telah     implementation of work carried out by TMU
menyerap tenaga kerja sebanyak 92 orang     has absorbed a workforce of 92 people
sedangkan untuk kontraktor dan sub-         while for contractors and sub-contractors
kontraktornya 770 orang dan dibagi          770 people and divided into 2 shifts of
menjadi 2 shift kerja. Kontraktor tambang   work. The mining contractor used is PT
yang digunakan adalah PT Multindo Prima     Multindo Prima Teknik (MPT). Mining is
Teknik (MPT). Penambangan yang              done by surface open pit mining system
dilakukan dengan sistem tambang terbuka     with truck and shovel method.
(surface open pit mining) dengan metode
truck dan shovel.

Produk batubara yang dihasilkan TMU         Coal products produced by TMU have an
memiliki kalori rata-rata 4500 GAR dengan   average calorie of 4500 GAR with Total
Total Sulphur (TS) di bawah 1%. Kualitas    Sulphur (TS) below 1%. The quality of this
batubara ini cukup memenuhi permintaan      coal is enough to meet the demand of the
pasar yang menginginkan batubara            market who want low sulphur coal.
dengan sulphur rendah. Pelaksanaan          Implementation of Occupational Safety
pengelolaan Keselamatan dan Kesehatan       and Health management implemented in
Kerja yang diterapkan di TMU mengacu        TMU refers to the program/plan of
kepada program/rencana Pengelolaan          Occupational      Safety     and   Health
Keselamatan dan Kesehatan Kerja sesuai      Management       in    accordance    with
dengan      perundang-undangan       yang   applicable laws and regulations.
Page 6
berlaku.

Kegiatan pengelolaan dan pemantauan          Environmental       management        and
lingkungan yang dilakukan TMU meliputi       monitoring activities carried out by TMU
kegiatan penghijauan yang dilakukan di       include greening activities carried out at
Tanggul Jalan, Tanggul Stockpile, Tanggul    the Road Embankment, Embankment
Depan Timbangan, Settling Pond, Waste        Stockpile, Front Embankment Scales,
Dump dan Bench Office Baru. Pada saat        Settling Pond, Waste Dump and New
ini, TMU juga melakukan pengelolaan dan      Bench Office. Currently, TMU also
pemantauan kualitas air, debu, kebisingan,   manages and monitors water quality, dust,
limbah B3 dan limbah domestik, serta         noise, B3 waste and domestic waste, as
pemantauan tingkat erosi.                    well as monitoring erosion rates.


I. 2. PT INDOMINING (“IM”)

Berdasarkan Izin Usaha Produksi Nomor:       Based on Production Business License
540/004/IUP-OP/MB-PBAT/III/2013              Nomor:                540/004/IUP-OP/MB-
tanggal 15 Maret 2013, IM melakukan          PBAT/III/2013 dated March 15, 2013, IM
kegiatan eksplorasi dan penambangan          conducted coal exploration and mining
batubara serta hasil produksinya di daerah   activities and its production in Sangasanga
Kecamatan Sangasanga, Kabupaten Kutai        District, Kutai Kartanegara Regency, East
Kartanegara, Provinsi Kalimantan Timur.      Kalimantan Province. Im's production
Tahap produksi IM dimulai pada bulan         phase began in August 2007, while
Agustus 2007, sedangkan produksi             commercial production began in October
komersial dimulai pada bulan Oktober         2007.
2007.

Kegiatan penambangan IM dilakukan            IM mining activities are carried out by
kontraktor penambangan yaitu PT RPP          mining contractor PT RPP Contractors
Contractors Indonesia (RCI) dan CV           Indonesia (RCI) and CV Multindo Prima
Multindo Prima Teknik (MPT). Kegiatan        Teknik (MPT). Mining activities are surface
penambangan merupakan penambangan            open pit mining with truck and shovel
terbuka (surface open pit mining) dengan     methods.
metoda truck dan shovel.

Pada Kuartal-2 2026, sumber daya             As of 2nd Quarter 2026, human resources
manusia yang bekerja dalam kegiatan          working in IM's operational activities
operasional IM mencapai 54 tenaga kerja      reached 54 workers including contractors
termasuk kontraktor dan sub-kontraktor.      and sub-contractors. Of those 54 people,
Dari 54 orang tersebut sekitar 80%           about 80% are local workers to support
merupakan tenaga kerja lokal sebagai         community development programs with
penunjang        program     community       the aim of improving the welfare of the
development     dengan   tujuan  untuk       communities around the mine.
meningkatkan kesejahteraan masyarakat
di sekitar tambang.
Page 7
Produk batubara IM memiliki kualitas           IM coal products have quality between
antara 4200 - 5600 GAR dengan total            4200 - 5600 GAR with total sulphur
sulphur antara 0.2% - 2.0%. Produk cukup       between 0.2% - 2.0%. The product is quite
bersaing di dalam pasar internasional          competitive in the international and
maupun domestik.                               domestic markets.


I. 3. PT ADIMITRA BARATAMA NUSANTARA (“ABN”)

ABN didirikan pada tahun 2004, dan             ABN was established in 2004, and
mengelola daerah pertambangan dengan           manages a mining area of about 2,990 ha
luas area sekitar 2.990 ha yang berlokasi di   located in Kampung Jawa Village,
Desa     Kampung       Jawa,      Kecamatan    Sangasanga District and Muara Kembang
Sangasanga dan Desa Muara Kembang,             Village, Muara Jawa District, Kutai
Kecamatan Muara Jawa, Kabupaten Kutai          Kartanegara Regency, East Kalimantan.
Kartanegara,        Kalimantan        Timur.   Based on Mining Business License
Berdasarkan        pada      Izin     Usaha    Production        Operation      Number:
Pertambangan Operasi Produksi Nomor:           540/1691/IUP-OP/MB-{BAT/XII/2009
540/1691/IUP-OP/MB-{BAT/XII/2009               dated December 1, 2009, ABN conducts
tanggal 1 Desember 2009, ABN melakukan         exploration, coal mining, and marketing of
kegiatan     eksplorasi,      penambangan      production at its mine site.
batubara, dan pemasaran hasil produksi di
lokasi tambangnya tersebut.

ABN mulai melakukan kegiatan eksplorasi        ABN      began    its  exploration    and
dan pembangunan infrastruktur pada             infrastructure development activities in
tahun 2007, sedangkan produksi komersial       2007, while commercial production began
dimulai pada tahun 2008. Produk batubara       in 2008. ABN coal products belong to
ABN termasuk dalam kelompok thermal            thermal coal group with sub-bituminous
coal dengan rank sub-bituminous dan            and bituminous rank, with 4 types of ABN
bituminous, dengan 4 jenis tipe yaitu ABN      52 (CV 5200 GAR & TS < 1), ABN 50 (CV
52 (CV 5200 gar & TS < 1), ABN 50 (CV          5000 GAR & TS < 1), ABN 42 (CV 4200
5000 gar & TS < 1), ABN 42 (CV 4200 gar        GAR & TS < 1) and ABN 56 HS (CV 5600
& TS < 1) dan ABN 56 HS (CV 5600 gar &         gar & TS <2)). Thermal coal is marketed to
TS < 2)). Thermal coal dipasarkan ke           several countries in the world, including
beberapa negara di dunia, diantaranya          India, China, Japan, Italy, Thailand, and
India, Cina, Jepang, Italia, Thailand, dan     Korea. ABN also supplies for domestic
Korea. ABN juga mensuplai untuk                needs, namely cement industry and several
kebutuhan dalam negeri, yaitu industri         other industries.
semen dan beberapa industri lainnya.

Sistem penambangan yang dilakukan ABN          ABN's mining system is surface open pit
yaitu sistem penambangan terbuka               mining. Coal ABN has a low ash content, so
(surface open pit mining). Batubara ABN        it is not done by washing process, only
memiliki kandungan abu yang rendah,            done by crushing process. Mining activities
sehingga tidak dilakukan pencucian             of PT ABN is carried out by one main
Page 8
(washing), hanya      dilakukan proses      contractor,PT      Gunungmas      Sukses
peremukan      (crushing).     Kegiatan     Makmur (GSM).
penambangan PT ABN dilakukan oleh satu
kontraktor utama, yaitu PT. Gunungmas
Sukses Makmur (GSM).

Pada Kuartal-II 2026, sumber daya           In The 2nd Quarter of 2026, human
manusia yang terlibat dalam kegiatan        resources involved in ABN's operational
operasional ABN mencapai sekitar 273        activities reached about 273 people,
orang, yang terdiri dari 155 orang tenaga   consisting of 155 workers in ABN and 118
kerja pada ABN dan 118 orang tenaga kerja   workers in contractors and sub-
pada kontraktor maupun sub-kontraktor.      contractors.

Sebagai salah satu wujud pemberdayaan       As the form of empowerment of the
masyarakat sekitar, ABN bersama-sama        surrounding community, ABN along with
dengan kontraktor dan sub-kontraktor        contractors and sub-contractors currently
saat ini telah menampung tenaga kerja       have accommodated local workers in
lokal    Kecamatan    Sangasanga    &       Sangasanga District & Muara Jawa District,
Kecamatan Muara Jawa, Kabupaten Kutai       Kutai Kartanegara Regency approximately
Kartanegara kurang lebih 80% dari           about 80% of the labor needs, while the
kebutuhan tenaga kerja, sedangkan           remaining about 20% comes from outside
sisanya sekitar 20% berasal dari luar       the area of the two sub-districts.
daerah dua kecamatan tersebut.
Page 9
               BAB II                                       CHAPTER II
        KEGIATAN EKSPLORASI                            EXPLORATION ACTIVITY



II. 1. PT TRISENSA MINERAL UTAMA (“TMU”)

1. 1. DAERAH EKSPLORASI                       1. 1. EXPLORATION AREA
Pada Kuartal-2 2026 tidak ada kegiatan        In 2nd Quarter of 2026, there will be no
eksplorasi berupa pengeboran. Kegiatan        exploration activities in the form of drilling.
sampling pit pada seam-seam yang              Sampling pit activities on mined seams are
tertambang sementara tidak dilakukan          temporarily not carried out because the
karena data kualitas yang sudah ada masih     existing quality data is still sufficient.
cukup.


1. 2. METODE PENGUKURAN                       1. 2. MEASUREMENT METHODS

Trenching                                     Trenching

Secara teknis di lapangan tim geologist       Technically in the field, the geologist team
melakukan trenching dengan membuat            conducted trenching by making an
paritan memanjang memotong strike             elongated trench cutting the strike seams
seam–seam target sebatas titik plan yang      target to the point plan made earlier. This
dibuat sebelumnya. Hal ini berfungsi untuk    serves to cover the entire region so that all
mengcover seluruh wilayah agar semua          seams can be found. The average length of
seam dapat ditemukan. Rata–rata panjang       trenching in a day can reach 80 m -100 m
paritan trenching dalam sehari bisa           depending on the terrain/area of work
mencapai 80 m - 100 m tergantung dari         whether in a ramp, swamp or hilly with a
medan/area kerjanya apakah di tempat          steep slope.
landai, rawa atau berbukit dengan
kemiringan terjal.

Pengambilan sampel untuk di mengetahui        Sampling to find out the values of quality is
nilai–nilai kualitasnya dilakukan per jarak   done per distance of 100 m between
100 m antar lubang trenching.                 trenching holes.

Sampling                                      Sampling

Tim geologi juga melakukan sampling           The geology team also sampled seams in
seam–seam         di pit guna mengetahui      the pit to find out the updated quality of the
kualitas ter update dari seam – seam yang     seams that will be mine.
akan ditambang.
Metode yang digunakan adalah:                 The methods used are:
Page 10
1. Jarak antar titik sampling maksimal 20        1. The distance between sampling points
   m per seam searah strike bukaan                  maximum 20 m per seam direct strike
   batubara yang akan diambil (getting).            coal openings to be taken (getting).


2. Sampling ulang/update pada tiap
   bukaan layer baru pada suatu seam             2. Re-sampling/update on each new layer
   (maksimal 1 bukaan layer setinggi 3 m).          opening on a seam (maximum 1 layer
                                                    opening as high as 3 m).
3. Sampling pada seam – seam bukaan
   baru/seam yang pertama kalinya akan           3. Sampling on seams new openings /
   di getting. Adapun plan penambangan              seam the first time will be in getting. The
   sampai dengan akhir tahun ditargetkan            mining plan until the end of the year is
   pada seam dengan nilai Calori (ar)_g di          targeted at seam with calorie value
   atas 4500.                                       (ar)_g above 4500.

1. 3. BIAYA EKSPLORASI                           1. 3. EXPLORATION COSTS
Biaya Eksplorasi TMU yang dikeluarkan di         TMU Exploration Costs incurred in the 2nd
Kuartal-2 2026 sebagai berikut:                  Quarter of 2026 as follows:


                                   Q2 2026                        Year To Date
     Biaya Operasional      Anggaran     Realisasi           Anggaran      Realisasi
    Operating Expense        Budget          Realization       Budget         Realization
                               (IDR)            (IDR)          (IDR)             (IDR)
  April/ April              4,600,000        4,600,000      50,000,000        4,600,000
  Mei/ May                  4,600,000             0         50,000,000        4,600,000
  Juni/ June                4,600,000        3,000,000      50,000,000        7,600,000

Biaya Eksplorasi untuk tahun 2026 yang           Exploration Cost for 2026 in accordance
sesuai dengan RKAB 2026 bagian geologi           with RKAB 2026 geological section in the
berupa biaya analisa kualitas batubara di        form of coal quality analysis cost at
laboratorium maksimal 3 sampel/bulan.            laboratory maximum 3 samples per month.
Biaya untuk kegiatan trenching yang              The cost for trenching activities that use
menggunakan unit PC 200 biayanya                 PC 200 units is accommodated to the
dimasukkan ke departemen produksi untuk          production department for general work
pekerjaan general dengan catatan kegiatan        with a record of trenching activities on the
trenching   pada     lembar    timesheet         unit usage timesheet.
pemakaian unit.

1. 4. PELAKSANAAN DAN                            1. 4. IMPLEMENTATION AND
      PENGAWASAN                                       SUPERVISION
Pengawasan Test Pit/Trenching dan                Supervision of Test Pit/ Trenching
sampling batubara di pit TMU dilakukan           sampling of coal in the TMU pit conducted
oleh Geologist TMU.                              by TMU geologist.
Page 11
1. 5. KEMAJUAN EKSPLORASI                     1. 5. EXPLORATION PROGRESS

Kesimpulan Eksplorasi TMU        Kuartal-2    Conclusion of TMU Exploration in the 2nd
2026                                          Quarter of 2026

Kegiatan eksplorasi untuk kuartal ke- 2 ini   Exploration activities for this quartal is pit
berupa sampel batubara di pit aktif B1WA      sampling on active pit B1WA on seam Y, Z,
pada seam Y, Z, dan ZA.                       and ZA:


1. Tim Geologist memonitoring seam -          1. The Geologist team monitors the seams
   seam yang tertambang di pit aktif             mined in the active pit, mainly for their
   terutama   untuk    nilai  kualitas,          quality value, continuity and thickness
   kemenerusan dan ketebalannya.


1. 6. RENCANA KEGIATAN                        1. 6. PLANS FOR FURTHER
      EKSPLORASI SELANJUTNYA                        EXPLORATION ACTIVITIES
Rencana Kegiatan Divisi Geologi Kuartal- 3    The Geological Division Plan for 3rd Quarter
2026:                                         2026:

1. Tidak ada rencana kegiatan eksplorasi      1. There are no exploration activities for
   untuk kuartal ke 3 tahun 2026. Masih          the 3rd quarter of 2026. Still waiting for
   menunggu arahan selanjutnya.                  further directions.



II. 2. PT INDOMINING (“IM”)

2. 1. DAERAH EKSPLORASI                       2. 1. EXPLORATION AREA
Pada Kuartal-2 2026, IM tidak ada kegiatan    In the 2nd Quarter of 2026, IM had no
pemboran.                                     drilling activities.

2. 2. METODE PENGUKURAN                       2. 2. MEASUREMENT METHODS
Untuk     kegiatan  pemboran    infill        For infill drilling activities using touch
menggunakan metode touch coring,              coring method, while for geotechnical
sedangkan untuk pemboran geoteknik            drilling is done by drilling Full Coring
dilakukan dengan pemboran metode Full         method.
Coring.

Pemboran geoteknik dilakukan juga             Geotechnical drilling is also carried out
dengan menggunakan metode Standard            using the Standard Penetration Test (SPT)
Penetration Test (SPT). Prinsip kerja SPT     method. The working principle of SPT is to
adalah dengan memukul sebuah tabung           hit a standard tube into a drill hole 45 cm
standar ke dalam lubang bor sedalam 45        deep using a hammer weighing 63.5 KG
cm menggunakan palu dengan berat 63.5         that falls freely from a height of 76 cm.
Page 12
KG yang jatuh bebas dari ketinggian 76 cm.       What counts is the number of blows to
Yang dihitung adalah jumlah pukulan untuk        penetrate as deep as 15 cm. The number of
melakukan penetrasi sedalam 15 cm.               blows used is penetration as deep as the
Jumlah pukulan yang digunakan adalah             last 30 cm.
penetrasi sedalam 30 cm terakhir.


2. 3. BIAYA EKSPLORASI                           2. 3. EXPLORATION COSTS
Biaya Eksplorasi IM yang dikeluarkan di          IM Exploration Costs incurred in the 2nd
Kuartal-2 2026 sebagai berikut:                  Quarter of 2026 as follows:


                                    Q2 2026                     Year To Date
       Biaya Operasional      Anggaran    Realisasi         Anggaran     Realisasi
      Operating Expense        Budget        Realization     Budget       Realization
                               (IDR)           (IDR)          (IDR)          (IDR)
     April / April          83,333,333            -        333,333,332          -
     Mei / May              83,333,333            -        416,666,665          -
     Juni / June            83,333,333            -        499,999,998          -



2. 4. PELAKSANAAN DAN                            2. 4. IMPLEMENTATION AND
     PENGAWASAN                                        SUPERVISION
Kegiatan    Pemboran    diawasi    oleh          Drilling activities are supervised by the
Departemen     Engineering      Section          Department of Engineering geologist
Geologist.                                       section.

2. 5. KEMAJUAN EKSPLORASI                        2. 5. EXPLORATION PROGRESS
Pada Kuartal-2 2026 belum ada kegiatan           As of the 2nd Quarter of 2026, there are no
pemboran lanjutan. Namun ada beberapa            further drilling activities. But there are
kegiatan Geologi yang berlanjut dilakukan,       several geological activities that continue
diantaranya:                                     to be carried out, including:

1. Melakukan pembaharuan / updating              1. Updating the Geological model based
   model Geologi berdasarkan data                   on monthly roof/floor updating data
   updating roof/floor bulanan dari data            from pit survey data and cs_holes data
   survey Pit serta cs_holes dari data              from coal sampling channel data, and
   channel sampling batubara, dan                   supervision in the activities of taking
   pengawasan          dalam      kegiatan          roof/floor measurement data and
   pengambilan        data     pengukuran           cs_holes.
   roof/floor serta cs_holes tersebut.

2. Melakukan kegiatan channel sampling           2. Conducting channel sampling activities
   serta pengukuran tebal aktual batubara           as well as actual thick measurement of
   di lokasi Pit AB Blok 15 & sekitarnya            coal at the pit AB location Block 15 &
   untuk keperluan pembuatan data                   surrounding areas for the purposes of
Page 13
   channel    sampling untuk support                 making data sampling channels to
   pembaharuan/ updating model Geologi               support the renewal / updating of
   dan variasi kualitas batubara dari coal           geological models and variations in the
   inventory yang akan ditambang.                    quality of coal from coal inventory to be
                                                     mined.

3. Melakukan analisis kestabilan lereng di        3. Perform slope stability analysis in the
   area pit aktif Pit, baik pada sisi low wall,      active pit area, both on the low wall side,
   high wall maupun sidewall serta disposal          high wall and sidewall and disposal IPD
   IPD border Selatan, kaitannya untuk               South border, related to knowing the
   mengetahui nilai safety factor (FoS)              value of safety factor (FoS) to control
   untuk kontrol pembentukan desain Pit              the formation of Active Pit design to be
   Aktif supaya stabil dan aman.                     stable and safe.


4. Melakukan update kajian geoteknik              4. Updating the geotechnical study for
   pemindahan jalan dan pembaruan                    road relocation and renewing the
   kajian hidrogeologi di area pit dan               hydrogeological study within the pit
   sekitarnya                                        area and its surroundings..

2. 6. RENCANA KEGIATAN                            2. 6. PLANS FOR FURTHER
     EKSPLORASI SELANJUTNYA                             EXPLORATION ACTIVITIES
IM pada periode Kuartal-3 2026 belum              IM for the 3rd Quarter of 2026 doesn’t have
merencanakan melakukan aktifitas kembali          plans to resume further exploration drilling
pengeboran eksplorasi lanjutan, baik itu          activities, be it infill drilling or Geotechnical
pengeboran infill maupun pengeboran               drilling in the IM concession area.
Geoteknik di area konsesi IM.
                                                  In relation to the mining optimization plan
Sehubungan             dengan        rencana      at Indomining's main pit to a depth of RL-
pengoptimalan penambangan pada pit                95 meters according to the Mine Plan
utama Indomining hingga kedalaman RL-             target for the IM pit and in order to optimize
95 meter sesuai target Mine Plan untuk pit        the mineable reserve of potential seams,
IM dan dalam rangka mengoptimalkan                the quality and quantity of exploration data
mineable reserve seam-seam potensial,             owned by PT Indomining through the
kualitas dan kuantitas jumlah data                current geological model are sufficiently
eksplorasi yang dimiliki oleh PT Indomining       representative and meet the number of
melalui model geologi saat ini sudah cukup        distribution of existing boreholes very well
mewakili serta memenuhi dengan jumlah             to cover the optimization of coal reserves in
distribusi titik – titik bor yang ada sangat      the planning of the mining process of the
baik untuk mengcover optimasi cadangan            PIT design geometry during the period for
batubara dalam perencanaan proses                 2026.
penambangan geometri desain PIT selama
periode untuk Tahun 2026.
Page 14
II. 3. PT ADIMITRA BARATAMA NUSANTARA (“ABN”)

3. 1. DAERAH EKSPLORASI                         3. 1. EXPLORATION AREA
Pada Kuartal-II 2026, ABN melakukan             In Q2 2026, ABN updated the geological
pembaruan model geologi di area Pit 6           model for the Pit 6 area based on actual
berdasarkan data roof & floor aktual dari       roof and floor data from survey
hasil pengukuran survey, melakukan              measurements, reconciled the geological
rekonsiliasi model geologi terhadap data        model against actual survey data and
survey      actual,  serta     melakukan        conducted real-time slope stability
pemantauan kestabilan lereng secara real        monitoring using SSR (Slope Stability
time dengan menggunakan SSR (Slope              Radar).
Stability Radar).

Selain kegiatan eksplorasi di dalam konsesi     Apart from exploration activities within the
IUP ABN, tim eksplorasi juga melakukan          ABN IUP concession, the exploration team
studi prospeksi dan review terhadap             also carried out prospecting studies and
potensi pengembangan bahan galian di            reviews of the potential for developing
luar IUP ABN. Pada kuartal-II, tim              minerals outside the ABN IUP. In the 2nd
eksplorasi telah menyelesaikan sebanyak 7       Quarter, the exploration team completed 7
desk studi prospeksi terhadap potensi           of prospecting studies on the potential
batubara, nikel dan emas.                       coal, nickel and gold.

3. 2. METODE PENGUKURAN                         3. 2. MEASUREMENT METHODS
Channel sampling dilakukan melalui              Channel sampling is conducted through
pemetaan dan pengukuran aktual batubara         mapping and actual measurement of the
yang telah terekspos (thickness, strike,        exposed coal (thickness, strike, dip,
dip, collar). Selanjutnya, sampel diambil       collar). Furthermore, samples are collected
secara komposit untuk analisis kualitas         compositely for coal quality analysis to
batubara sebagai dasar pemutakhiran             serve as a basis for updating the geological
(update) model geologi seiring dengan           model in line with mine advancement. This
kemajuan tambang. Kegiatan ini tidak            activity was not carried out in the 2nd
dilakukan pada Kuartal II-2026 karena           Quarter of 2026 because there were no
tidak ada perubahan kualitas batubara           significant changes in coal quality.
yang signifikan .

3. 3. BIAYA EKSPLORASI                          3. 3. EXPLORATION COSTS
Biaya Eksplorasi ABN yang dikeluarkan di        ABN Exploration Costs issued in The 2nd
Kuartal-2 2026 sebagai berikut:                 Quarter of 2026 as follows:


       Biaya                  Q2 2026                         Year To Date
     Operasional      Anggaran      Realisasi           Anggaran        Realisasi
      Operating        Budget         Realization        Budget          Realization
      Expense          (IDR)            (IDR)             (IDR)             (IDR)
    April/ April    250.000.000      245.000.000     1.150.200.000     1.133.960.000
    Mei/ May        250.000.000      245.000.000     1.400.200.000     1.378.960.000
    Juni/ June      250.000.000      245.000.000     1.650.200.000     1.623.960.000
Page 15
3. 4. PELAKSANAAN DAN                         3. 4. IMPLEMENTATION AND
     PENGAWASAN                                    SUPERVISION
Kegiatan dilaksanakan dan diawasi oleh        Activities are carried out and supervised by
Departemen Mining section Geotech &           the Department of Mining section Geotech
Exploration Development.                      & Exploration Development.

3. 5. KEMAJUAN EKSPLORASI                     3. 5. EXPLORATION PROGRESS
Pada Kuartal-II 2026 tidak ada kegiatan       In The 2nd Quarter of 2026, there are no
pemboran eksplorasi, namun berikut            exploration drilling activities, but the
kegiatan team geologi selama Kuartal-II       following are the activities of the geological
2026:                                         team during the 2nd Quarter of 2026:
1. Melakukan monitoring di area Pit Aktif,        1. Conducted monitoring in active pit
    baik monitoring kestabilan lereng                areas, covering both slope stability
    maupun monitoring batubara untuk                 monitoring and coal seams to ensure
    memantau kesesuaian antara Model                 alignment between the geological
    Geologi & aktual di lapangan.                    model and actual field conditions.
2. Update Model Geologi berdasarkan               2. Updated the geological model based
    data roof/floor batu bara dari data              on coal roof/floor data derived from
    survey aktual dan dari data pemboran             actual survey and drilling data.
3. Analisa kestabilan lereng di area Low          3. Slope stability analysis for active pit
    Wall Pit Aktif & area disposal.                  low walls and disposal areas.
4. Monitoring kestabilan lereng untuk pit         4. Pit and disposal slope stability
    dan disposal dengan titik pantau prisma          monitoring using monitoring point
    dan SSR (Slope Stability Radar).                 prism and SSR (Slope Stability
5. Menindaklanjuti beberapa IUP yang                 Radar).
    potensial untuk dilakukan eksplorasi          5. Followed up on several potential IUP
    detail.                                          for detailed exploration.

3. 6. RENCANA KEGIATAN                        3. 6. PLANS FOR FURTHER
     EKSPLORASI SELANJUTNYA                        EXPLORATION ACTIVITIES
Rencana ABN pada Kuartal-III 2026, tidak      In the 3rd Quarter of 2026, ABN has no
ada rencana pemboran eksplorasi.              exploration drilling plan.
Kegiatan    eksplorasi    dan     geologi     Exploration and geology activities are
difokuskan pada kegiatan berikut:             focused on the following activities:

1. Pengambilan sampel untuk update            1. Sampling for coal quality updates &
   kualitas batubara & model geologi di          geological models in the Active Pit area.
   area Pit Aktif.                            2. Monitoring in the Active Pit area to
2. Monitoring di area Pit Aktif untuk            monitor the suitability between actual
   memantau kesesuaian antara Model              and Geological Models in the field.
   Geologi dan aktual di lapangan.            3. Update geological model based on
3. Melakukan update Model Geologi                sampling channel, actual survey data
   berdasarkan data channel sampling,            and drilling data.
   data survey aktual dan data pemboran.      4. Reconciliation between Geological
4. Rekonsiliasi antara Model Geologi             Model to actual survey data.
   terhadap data survey actual.               5. Geotech monitoring in Pit & Disposal
5. Monitoring geotek di area Pit &               Areas.
Page 16
   Disposal.                           6. Slope stability analysis for Pit and
6. Analisa kestabilan lereng pit dan      Disposal.
   disposal.                           7. Monitoring point installation for slope
7. Pemasangan monitoring point untuk      movement monitoring program.
   pemantauan pergerakan lereng.

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Names mentioned 15 people and organisations named in the text · linked when the evidence is strong

linked org TBS Energi Utama Tbk p.1 ×26
linked org Sukses Makmur p.8
possible org Utama Tbk p.1
unresolved org PT TBSthe p.1
unresolved org PT Trisensa Mineral Utama p.2 ×5
unresolved org PT Indomining p.2 ×6
unresolved org PT Adimitra Baratama Nusantara p.2 ×4
unresolved org Menteri Investasi p.5
unresolved org Koordinasi Penanaman p.5
unresolved org PT Multindo Prima p.5
unresolved org PT RPP p.6
unresolved org PT RPP Contractors Contractors Indonesia p.6
unresolved org PT ABN p.7 ×2
unresolved org PT. Gunungmas Sukses Makmur p.8
unresolved org Departemen Mining p.15

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