20250408_TOBA_Laporan Bulanan Aktivitas Eksplorasi_31873128_lamp2.pdf

                    KATA PENGANTAR                           INTRODUCTION

    PT TBS Energi Utama Tbk (“Perseroan”)        PT TBS Energi Utama Tbk ("the
    adalah    perusahaan       pertambangan      Company") is a coal mining company
    batubara yang melakukan kegiatan             conducting      mining      activities    in
    penambangan di daerah Sangasanga,            Sangasanga area, Kutai Kartanegara
    Kabupaten Kutai Kartanegara, Provinsi        Regency, East Kalimantan, which the
    Kalimantan Timur, dimana area konsesi        concession area of the three subsidiaries
    ketiga   anak     perusahaan      terletak   is located side by side. All the supporting
    berdampingan.     Seluruh    infrastruktur   infrastructure of mining operations such
    pendukung operasional penambangan            as coal hauling roads, offices, workshop,
    seperti    jalan    angkut      batubara,    coal-only jetty and other infrastructures
    perkantoran, perbengkelan, pelabuhan         are located in Kutai Kartanegara
    khusus batubara dan infrastruktur lainnya    Regency, East Kalimantan.
    berada di daerah Kabupaten Kutai
    Kartanegara, Provinsi Kalimantan Timur.

    Perseroan mempunyai 3 (tiga) anak            The Company has 3 (three) subsidiaries
    perusahaan yang bergerak di bidang           engaged in coal mining sector, located in
    pertambangan batubara, terletak di           Sangasanga area, Kutai Kartanegara
    daerah Sangasanga, Kabupaten Kutai           Regency,    East     Kalimantan.     The
    Kartanegara, Provinsi Kalimantan Timur.      company's subsidiaries are:
    Adapun     ketiga   anak    perusahaan
    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 concerning
    Kewajiban     Penyampaian   Informasi,       Information       Delivery     Obligations,
    Lampiran Keputusan Direksi PT Bursa          Attachment to the Decree of the Board of
    Efek Jakarta Number Kep-00066/BEI/09-        Directors of PT Bursa Efek Jakarta
    2022 tanggal 30 September 2022, maka         Nomor Kep-00066/BEI/09-2022 dated
    bersama ini kami sampaikan Laporan           September 30, 2022, we here jointly
    Kegiatan Eksplorasi Perseroan untuk          submit the Company's Exploration
    Kuartal-1 2025.                              Activity Report for the 1st Quarter of 2025.




www.tbsenergi.com

                 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 negeri.    foreign investors as well as domestic
Usaha pertambangan batubara mempunyai           investors. Coal mining business has
prospek sebagai sektor andalan pengganti        prospects as a mainstay sector of oil and
migas dalam membangun perekonomian              gas replacement in building the economy
Kalimantan Timur di masa mendatang. Hal ini     of East Kalimantan in the future. It is based
didasarkan pada sumber daya dan potensi         on available coal resources and potentials,
batubara yang tersedia, prospek pemasaran       marketing prospects as well as local
serta dukungan kebijakan pemerintah daerah.     government policy support.

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 alam     environment. Behind the changes in nature
dan lingkungannya, suatu kenyataan pula         and the environment, it is also a fact that
bahwa usaha pertambangan telah berhasil         mining businesses have succeeded in
meningkatkan kesejahteraan manusia dengan       improving human welfare by providing raw
menyediakan bahan baku untuk industri,          materials for industry, energy, and others.
energi, dan lain-lain.




                    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

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

Pada Kuartal-1 2025, pelaksanaan pekerjaan      In The 1st Quarter of 2025, the
yang dilakukan oleh TMU telah menyerap          implementation of work carried out by TMU
tenaga kerja sebanyak 92 orang sedangkan        has absorbed a workforce of 92 people
untuk kontraktor dan sub-kontraktornya 770      while for contractors and sub-contractors
orang dan dibagi menjadi 2 shift kerja.         770 people and divided into 2 shifts of
Kontraktor tambang yang digunakan adalah        work. The mining contractor used is PT
PT    Multindo    Prima    Teknik   (MPT).      Multindo Prima Teknik (MPT). Mining is
Penambangan yang dilakukan dengan sistem        done by surface open pit mining system
tambang terbuka (surface open pit mining)       with truck and shovel method.
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 dengan         market who want low sulphur coal.
sulphur rendah. Pelaksanaan pengelolaan         Implementation of Occupational Safety
Keselamatan dan Kesehatan Kerja yang            and Health management implemented in
diterapkan di TMU mengacu kepada                TMU refers to the program / plan of
program/rencana Pengelolaan Keselamatan         Occupational      Safety    and   Health
dan Kesehatan Kerja sesuai dengan               Management       in    accordance    with
perundang-undangan yang berlaku.                applicable laws and regulations.

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 ini,      Settling Pond, Waste Dump and New
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 tanggal          Nomor:       540/004/IUP-OP/MB-PBAT/III
15 Maret 2013, IM melakukan kegiatan             /2013 dated March 15, 2013, IM conducted
eksplorasi dan penambangan batubara serta        coal exploration and mining activities and
hasil produksinya di daerah Kecamatan            its production in Sangasanga District, Kutai
Sangasanga, Kabupaten Kutai Kartanegara,         Kartanegara Regency, East Kalimantan
Provinsi Kalimantan Timur. Tahap produksi IM     Province. Im's production phase began in
dimulai pada bulan Agustus 2007, sedangkan       August 2007, while commercial production
produksi komersial dimulai pada bulan            began in October 2007.
Oktober 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). Kegiatan            Indonesia (RCI). Mining activities are
penambangan merupakan penambangan                surface open pit mining with truck and
terbuka (surface open pit mining) dengan         shovel methods.
metode truck dan shovel.

Pada Kuartal-1 2025, sumber daya manusia         As of 1st Quarter 2025, human resources
yang bekerja dalam kegiatan operasional IM       working in IM's operational activities
mencapai 338 tenaga kerja termasuk               reached 338 workers including contractors
kontraktor dan sub-kontraktor. Dari 338 orang    and sub-contractors. Of those 338 people,
tersebut sekitar 80% merupakan tenaga kerja      about 80% are local workers to support
lokal sebagai penunjang program community        community development programs with
development       dengan     tujuan     untuk    the aim of improving the welfare of the
meningkatkan kesejahteraan masyarakat di         communities around the mine.
sekitar tambang.

Produk batubara IM memiliki kualitas antara      IM coal products have quality between
4200 - 5600 GAR dengan total sulphur antara      4200 - 5600 GAR with total sulphur
0.2% - 2.0%. Produk cukup bersaing di dalam      between 0.2% - 2.0%. The product is quite
pasar internasional maupun domestik              competitive in the international and
                                                 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 luas        manages a mining area of about 2,990 ha
area sekitar 2.990 Ha yang berlokasi di Desa     located in Kampung Jawa Village,
Kampung Jawa, Kecamatan Sangasanga dan           Sangasanga District and Muara Kembang
Desa Muara Kembang, Kecamatan Muara              Village, Muara Jawa District, Kutai
Jawa,    Kabupaten     Kutai    Kartanegara,     Kartanegara Regency, East Kalimantan.
Kalimantan Timur. Berdasarkan pada Izin          Based on Mining Business License
Usaha Pertambangan Operasi Produksi              Production     Operation       Number:
Nomor: 540/1691/IUP-OP/MB-{BAT/XII/2009          540/1691/IUP-OP/MB-{BAT/XII/2009
tanggal 1 Desember 2009, ABN melakukan           dated December 1, 2009, ABN conducts

kegiatan eksplorasi, penambangan batubara,      exploration, coal mining, and marketing of
dan pemasaran hasil produksi di lokasi          production at its mine site.
tambangnya tersebut.

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

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

Pada Kuartal-1 2025, sumber daya manusia        In The 1st Quarter of 2025, human
yang terlibat dalam kegiatan operasional ABN    resources involved in ABN's operational
mencapai sekitar 546 orang, yang terdiri dari   activities reached about 546 people,
193 orang tenaga kerja pada ABN dan 353         consisting of 193 workers in ABN and 353
orang tenaga kerja pada kontraktor maupun       workers in contractors and sub-
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 saat ini   contractors and sub-contractors currently
telah menampung tenaga kerja lokal              have accommodated local workers in
Kecamatan Sangasanga & Kecamatan Muara          Sangasanga District & Muara Jawa
Jawa, Kabupaten Kutai Kartanegara kurang        District, Kutai Kartanegara Regency
lebih 80 % dari kebutuhan tenaga kerja,         approximately about 80% of the labor
sedangkan sisanya sekitar 20 % berasal dari     needs, while the remaining about 20%
luar daerah dua kecamatan tersebut.             comes from outside the area of the two
                                                sub-districts.

                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-1 2025 kegiatan eksplorasi           In the 1ST Quarter of 2025, exploration
berupa kegiatan sampling di Pit Aktif yaitu pit   activities will be in the form of sampling
B1WA, B2A.                                        activities in Active Pits, namely pit
                                                  B1WA,B2A.

Kegiatan sampling batubara di pit aktif guna      Coal sampling activities in active pits to
mengetahui nilai kualitas nya terutama nilai      determine the quality value, especially the
total sulphur (TS) dan nilai total kalori.        total sulphur (TS) value and total calorie
kegiatan sampling batubara. Seam target           value. coal sampling activities. The target
adalah seam T, RU, RL, S di pit B1WA.,            seam is the T, RU, RL, S seam seam in pit
sampling di pit B2A dengan seam target            B1WA. sampling in pit B2A with seam target
seam F, E, D, C4B.                                seam F, E, D, C4B.

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 elongated
paritan memanjang memotong strike seam –          trench cutting the strike seam – seam target
seam target sebatas titik plan yang dibuat        to the point plan made earlier. This serves to
sebelumnya. Hal ini berfungsi untuk               cover the entire region so that all seams can
mengcover seluruh wilayah agar semua              be found. The average length of trenching in
seam dapat ditemukan. Rata – rata panjang         a day can reach 80 m -100 m depending on
paritan trenching dalam sehari bisa mencapai      the terrain / area of work whether in a ramp,
80 m - 100 m tergantung dari medan/areal          swamp or hilly with a steep slope.
kerjanya apakah di tempat 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 seam          Geologies team also sampling seam - seam
– seam di pit guna mengetahui kualitas ter        in the pit to find out the updated quality of the
update dari seam – seam yang akan                 seam - seam that will be mined.
ditambang.
Metode yang digunakan adalah:                     The methods used are:

1. Jarak antar titik sampling maksimal 20 m       1. The distance between sampling points
   per seam searah strike bukaan batubara            maximum 20 m per seam direct strike coal
   yang akan diambil (getting).                      openings to be taken (getting).

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


1. 3. BIAYA EKSPLORASI                          1. 3. EXPLORATION COSTS
Biaya Eksplorasi TMU yang dikeluarkan di        TMU Exploration Costs incurred in the 1st
Kuartal-1 2025 sebagai berikut:                 Quarter of 2025 as follows:


                                      Q1 2025                  Year To Date
         Biaya Operasional     Anggaran    Realisasi      Anggaran     Realisasi
         Operating Expense      Budget     Realization     Budget     Realization
                                 (IDR)        (IDR)         (IDR)        (IDR)
         Biaya Eksplorasi
                              112,500,000 30,000,000 450,000,000 30,000,000
         Exploration Costs

Catatan:                                        Note:
Jumlah sampling di Kuartal-1 2025 berjumlah     The number of samplings in The 1st Quarter
12 sampel.                                      2025 amounted to 12 samples


Biaya Eksplorasi untuk tahun 2025 yang          Exploration Cost for 2025 in accordance with
sesuai dengan RKAB 2025 bagian geologi          RKAB 2025 geological section in the form of
berupa biaya analisa kualitas batubara di       coal quality analysis cost at laboratory
laboratorium maksimal 14 sampel/bulan.          maximum 14 samples per month. The cost for
Biaya untuk kegiatan trenching yang             trenching activities that use PC 200 units is
menggunakan unit PC 200 biayanya                accommodated to the production department
dimasukkan ke departemen produksi untuk         for general work with a record of trenching
pekerjaan general dengan catatan kegiatan       activities on the unit usage timesheet.
trenching pada lembar timesheet pemakaian
unit.


1. 4. PELAKSANAAN DAN                           1. 4. IMPLEMENTATION AND
      PENGAWASAN                                      SUPERVISION
Pengawasan     Test     Pit/Trenching  dan      Supervision of Test Pit/ Trenching sampling
sampling batubara di pit TMU dilakukan oleh     of coal in the TMU pit conducted by
Geologist TMU.                                  TMU’geologist.

1. 5. KEMAJUAN EKSPLORASI                       1. 5. EXPLORATION PROGRESS

Kesimpulan Eksplorasi TMU Kuartal-1             Conclusion of TMU Exploration in the 1st
2025                                            Quarter of 2025

Selain kegiatan trenching kami dari tim          In addition to our trenching activities from the
geologi juga melakukan sampling seam –           geology team also sampling seam-seam in
seam di pit guna mengetahui kualitas ter         the pit to find out the update quality from
update dari seam – seam yang akan di             seam - seam to be getting. The methods used
getting. Metode yang digunakan adalah:           are:

1. Jarak antar titik sampling maksimal 50 m      1. Distance between sampling points
   per seam searah strike bukaan batubara           maximum 50 m per unidirectional strike
   yang akan diambil (getting).                     coal openings to be taken (getting)

2. Sampling ulang/update pada tiap bukaan        2. Sampling/update on each new layer
   layer baru pada suatu seam (maksimal 1           opening on one seam (maximum 1-layer
   bukaan layer setinggi 3 m).                      aperture as high as 3 m).

3. Sampling pada seam – seam bukaan              3. Sampling on seam - seam new openings
   baru/seam yang pertama kalinya akan di           / seam the first time will be in the getting.
   getting. Adapun plan penambangan                 The mining plan until the end of the year
   sampai dengan akhir tahun ditargetkan            is targeted at seam with calorie (ARB)
   pada seam dengan nilai Calori (ARB)              GAR value above 4800.
   GAR di atas 4800.

4. Selama Kuartal-1 2025 kegiatan berupa         4. During The 1st 2025, activities in the form
   sampling pit aktif yaitu di pit B2A dengan       of active pit sampling are in pit B2A with
   seam target adalah seam F, E, D, C4B.Pit         target seam are F, E, D, C4B Pit B1WA
   B1WA dengan seam target T, RU, RL, S             with target seam T, RU, RL, S


5. Rata – rata hasil analisa kualitas dari       5. The average quality analysis results of
   seam –seam tersebut di atas TM 29.34             the seam -seam above TM 29.34 %, ASH
   %, ASH 5.55 %, TS 0.80 % dan nilai CAL           5.55%, TS 0.80 % and CAL (ar) values
   (ar) 4.900                                       4.900.


1. 6. RENCANA KEGIATAN                           1. 6. PLANS FOR FURTHER
      EKSPLORASI SELANJUTNYA                           EXPLORATION ACTIVITIES
Rencana Kegiatan Divisi Geologi Kuartal-1        The Geological Division Plan for 1ST Quarter
2025:                                            2025:

1. Melakukan pembaharuan / updating              1. Updating the Geological model based on
   model Geologi berdasarkan data updating          monthly roof/floor updating data from pit
   roof/floor bulanan dari data survey Pit          survey data and cs holes data from coal
   serta cs_holes dari data channel sampling        sampling channel data. The results of this
   batubara. Hasil dari pembaharuan model           model update are then sent to the mine
   ini kemudian dikirim ke bagian mine plan         plan engineering section as a basis for
   engineering sebagai dasar acuan untuk            submissions for making pit designs for
   pembuatan desain pit untuk bulan depan.          next month.

2. Trenching di luar Rencana PIT yang di         2. Trenching outside the PIT Plan that is
   Plan kan oleh tim Engineering di tiadakan        planned by the Engineering team is not in
   dan sebagai penggantinya adalah                  place and in lieu of trenching is done in the
   trenching di lakukan di plan pit yang data       plan pit whose trenching data is lacking or
   trenchingnya     kurang    atau     tingkat      confidence level of continuity, seam
   confidence kemenerusan, ketebalan                thickness in the pit is still lacking.
   seam di pit tersebut masih kurang.

3. Memonitoring adanya anomali pada suatu      3. Monitoring the presence of anomalies in
   bukaan PIT yang aktif.                         an active PIT aperture.

4. Tim geologist akan melakukan sampling       4. The geological team will be sampling the
   pada bukaan seam seam yang berada di           seam seam openings located in the active
   pit aktif terutama mengontrol perubahan        pit, especially controlling changes in the
   nilai Total Sulfur, Persentase nilai Ash       value of Total Sulphur, Ash percent
   dan nilai Kalori di seam –seam ber kalori      value and value of Calory in seam -
   tinggi baik ke arah down dip maupun ke         seam with high calories both towards
   arah strikenya.                                down dip and towards the strike.

5. Memonitoring kualitas dari seam –seam       5. Monitoring the quality of seam -seam that
   yang tertambang di bulan April – Juni          is mined in April until June 2025,
   2025 terutama dalam hal perubahan nilai        especially in terms of changes in TS value
   TS seiring penurunan elevasi dari masing       in line with the decrease in elevation of
   –masing seam yang tertambang.                  each seam that is mined.

6. Update data kualitas berdasarkan            6. Quality data update based on mining
   kemajuan penambangan pada seam–                progress on seam–seam target in
   seam target di bulan sebelumnya.               previous month.

7. Rencana kegiatan pengeboran eksplorasi      7. The plan for exploration drilling activities
   di tahun 2025 sebanyak 78 titik bor atau       in 2025 is 78 drill points or as many as
   sebanyak 9.360 m di wilayah barat pit          9,360 m in the western area of the B3KL
   B3KL dengan seam Target seam R, S, T,          pit with seam Target seam R, S, T, U, WA,
   U, WA, WB, X, Y.                               WB, X, Y.

8. Rencana kegiatan pengeboran geoteknik       8. The plan for geotechnical drilling activities
   di tahun 2025 sebanyak 5 titik pemboran        in 2025 is 5 drilling points or as much as
   atau sebanyak 600 m di wilayah Barat pit       600 m in the Western area of the B3KL pit.
   B3KL.


II. 2. PT INDOMINING (“IM”)

2. 1. DAERAH EKSPLORASI                        2. 1. EXPLORATION AREA
Pada Kuartal-1 2025, IM tidak ada kegiatan     In the 1st Quarter of 2025, IM had no drilling
pemboran.                                      activities.

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

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

sedalam 15 cm. Jumlah pukulan yang                15 cm. The number of blows used is
digunakan adalah penetrasi sedalam 30 cm          penetration as deep as the last 30 cm.
terakhir.


2. 3. BIAYA EKSPLORASI                            2. 3. EXPLORATION COSTS
Biaya Eksplorasi IM yang dikeluarkan di           IM Exploration Costs incurred in the 1st
Kuartal-1 2025 sebagai berikut:                   Quarter of 2025 as follows:


                                     Q1 2025               Year To Date
           Biaya Operasional Anggaran Realisasi       Anggaran     Realisasi
           Operating Expense    Budget   Realization   Budget     Realization
                                 (IDR)      (IDR)       (IDR)        (IDR)
           Januari/ January   83,333,333       -     83,333,333         -
           Februari/ February 83,333,333       -     166,666,666        -
           Maret/ March       83,333,333       -     249,999,999        -


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

2. 5. KEMAJUAN EKSPLORASI                         2. 5. EXPLORATION PROGRESS
Pada Kuartal-1 2025 belum ada kegiatan            As of the 1st Quarter of 2025, there are no
pemboran lanjutan. Namun ada beberapa             further drilling activities. But there are several
kegiatan Geologi yang berlanjut dilakukan,        geological activities that continue to be
diantaranya:                                      carried out, including:

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

2. Melakukan kegiatan channel sampling            2. Conducting channel sampling activities as
   serta pengukuran tebal aktual batubara di         well as actual thick measurement of coal
   lokasi Pit AB Blok 12-13 & sekitarnya             at the pit AB location Block 12-13 &
   untuk keperluan pembuatan data channel            surrounding areas for the purposes of
   sampling untuk support pembaharuan /              making data sampling channels to
   updating model Geologi dan variasi                support the renewal / updating of
   kualitas batubara dari coal inventory yang        geological models and variations in the
   akan ditambang.                                   quality of coal from coal inventory to be
                                                     mined.

3. Melakukan analisis kestabilan lereng di        3. Perform slope stability analysis in the pit
   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 know the value of
   mengetahui nilai safety factor (FoS) untuk        safety factor (FoS) to control the
   kontrol pembentukan desain Pit Aktif              formation of Active Pit design to be stable

   supaya stabil dan aman.                            and safe.

2. 6. RENCANA KEGIATAN                            2. 6. PLANS FOR FURTHER
      EKSPLORASI SELANJUTNYA                            EXPLORATION ACTIVITIES

IM pada periode Kuartal-2 2025 belum              IM for 2nd Quarter of 2025 has not planned to
merencanakan melakukan aktivitas kembali          resume further exploration drilling activities,
pengeboran eksplorasi lanjutan, baik itu          be it infill drilling or Geotechnical drilling in IM
pengeboran infill maupun pengeboran               concession area.
Geoteknik di area konsesi IM.

Sehubungan dengan rencana pengoptimalan           In relation to the mining optimization plan at
penambangan pada pit utama Indomining             Indomining's main pit to a depth of RL-160
hingga kedalaman RL-160 meter sesuai              meters according to the Mine Plan target for
target Mine Plan untuk pit IM dan dalam           the IM pit and in order to optimize the
rangka mengoptimalkan mineable reserve            mineable reserve of potential seams, the
seam-seam potensial, kualitas dan kuantitas       quality and quantity of exploration data
jumlah data eksplorasi yang dimiliki oleh PT      owned by PT Indomining through the current
Indomining melalui model geologi saat ini         geological       model      are     sufficiently
sudah cukup mewakili serta memenuhi               representative and meet the number of
dengan jumlah distribusi titik – titik bor yang   distribution of existing boreholes very well to
ada sangat baik untuk mengcover optimasi          cover the optimization of coal reserves in the
cadangan batubara dalam perencanaan               planning of the mining process of the PIT
proses penambangan geometri desain PIT            design geometry during the period for 2025.
selama periode untuk Tahun 2025.



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

3. 1. DAERAH EKSPLORASI                           3. 1. EXPLORATION AREA
Pada Kuartal-1 2025, ABN melakukan                In the 1st Quarter of 2025, ABN conducted
update model geologi berdasarkan data             geological model updates based on channel
channel sampling serta data roof & floor          sampling data as well as actual roof & floor
aktual dari hasil pengukuran survey, serta        data from survey measurement results, as
melakukan rekonsiliasi model geologi              well as reconciling geological models to
terhadap data survey aktual.                      actual survey data.

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 potensi       also carried out prospecting studies and
pengembangan bahan galian di luar IUP             reviews of the potential for developing
ABN. Pada kuartal-1, tim eksplorasi telah         minerals outside the ABN IUP. In the first
menyelesaikan sebanyak 2 desk studi               quarter, the exploration team completed 2 of
prospeksi terhadap potensi batubara,              prospecting studies on the potential coal


3. 2. METODE PENGUKURAN                           3. 2. MEASUREMENT METHODS
Channel    sampling    dilakukan     dengan       Channel sampling is done by mapping and
mapping dan pengukuran aktual batubara            actual measurement of coal that has been
yang telah terekspos (thickness, strike, dip,     exposed (thickness, strike, dip, collar) then
collar) kemudian diambil sampel secara            taken composite sample to be analyzed coal
komposit untuk dilakukan analisa kualitas         quality as the basis for geology model update
batubara sebagai dasar untuk update model         in line with the progress of the mine. Channel

geologi seiring dengan kemajuan tambang.         sampling in the 1st Quarter of 2025 was
Chanel sampling pada Kuartal-1 2025              conducted at seam S4U, S5, S6, S7 dan S8
dilakukan pada seam S4U, S5, S6, S7 dan          Pit West Ext.
S8 Pit West Ext.

3. 3. BIAYA EKSPLORASI                           3. 3. EXPLORATION COSTS
Biaya Eksplorasi ABN yang dikeluarkan di         ABN Exploration Costs issued in The 1st
Kuartal-1 2025 sebagai berikut:                  Quarter of 2025 as follows:


                                     Q1 2025                Year To Date
          Biaya Operasional Anggaran      Realisasi    Anggaran     Realisasi
          Operating Expense    Budget     Realization   Budget     Realization
                                (IDR)        (IDR)       (IDR)        (IDR)
          Januari/ January   788,000,000        -     788,000,000            -
          Februari/ February       -            -     788,000,000            -
          Maret/ March             -            -     788,000,000            -


3. 4. PELAKSANAAN DAN                            3. 4. IMPLEMENTATION AND
      PENGAWASAN                                       SUPERVISION
Kegiatan dilaksanakan & 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-1 2025 tidak ada kegiatan           In The 1st Quarter of 2025there are no
pemboran    eksplorasi, namun   berikut          exploration drilling activities, but the following
kegiatan team geologi selama Kuartal-1           are the activities of the geological team during
2025:                                            The 1st Quarter of 2025:

1. Melakukan monitoring di area Pit Aktif,       1. Monitoring the Active Pit area, both slope
   baik monitoring kestabilan lereng maupun         stability monitoring and coal monitoring to
   monitoring batubara untuk memantau               monitor the suitability between geological
   kesesuaian antara Model Geologi &                models and actual in the field.
   aktual di lapangan.
2. Update Model Geologi berdasarkan data         2. Geological Model Update based on coal
   roof/floor batubara dari data survey actual      roof/floor data from actual survey data and
   dan dari data pemboran                           drilling data.
3. Analisa kestabilan lereng di area Low         3. Analysis of slope stability in low wall pit
   Wall Pit Aktif & area disposal.                  area active & disposal area.

4. Monitoring kestabilan lereng untuk pit dan    4. Pit and disposal slope stability monitoring
   disposal dengan titik pantau prisma dan          using monitoring point prism and EWS
   ekstensometer EWS.                               ekstensometer.
5. Menindaklanjuti beberapa IUP yang             5. Follow up on several potential IUP for
   potensial untuk dilakukan eksplorasi             detailed exploration.
   detail.


3. 6. RENCANA KEGIATAN                           3. 6. PLANS FOR FURTHER
      EKSPLORASI SELANJUTNYA                           EXPLORATION ACTIVITIES
Rencana ABN pada periode Kuartal-2 2025          In the 2nd Quarter of 2025, ABN has plans for
ada kegiatan pemboran depresurisasi Pit 6        depressurization drilling Pit 6 Ext & infill

Ext & pemboran Infill Pit West Ext . Selain itu   drilling Pit West Ext. However, exploration
kegiatan eksplorasi dan geologi juga              activities are also focused on the following
difokuskan pada kegiatan berikut:                 activities:

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