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No. 086/GEMS-CS/X/2025 Jakarta, 10 Oktober/October 2025
Kepada Yth.:
Direksi PT Bursa Efek Indonesia
Gedung Bursa Efek Indonesia Tower I
Jln. Jend. Sudirman Kav 52-53
Jakarta 10190
U.p. : : Ibu Vera Florida (Kepala Divisi Penilaian Perusahaan 2) /
(Head of Corporate Valuation Division 2)
Perihal : Laporan Aktivitas Eksplorasi periode Q3 2025 Subject : Exploration Activity Q3 2025 Report
Dengan hormat, Sincerely,
Sehubungan dengan Peraturan PT Bursa Efek Indonesia In accordance to Indonesia Stock Exchange Regulation
Nomor I-E tanggal 31 Desember 2022 tentang Kewajiban No. I-E dated 31 December 2022 concerning
Penyampaian Informasi, maka dengan ini kami Information Submission Obligation, we hereby submit
sampaikan Laporan Aktivitas Eksplorasi Pertambangan the Exploration Activity for the period of Q3 2025 of the
periode Q3 2025 di lingkungan anak-anak Perusahaan Company’s subsidiaries as attached.
PT Golden Energy Mines Tbk (“Perseroan”) sebagaimana
terlampir.
Dalam hal terdapat perbedaan penafsiran In the event there is any difference of
informasi yang diumumkan dalam Bahasa Inggris dan interpreting the information notified in English
Bahasa Indonesia, maka informasi yang digunakan language and Indonesian language, the Indonesian
sebagai acuan adalah informasi dalam Bahasa language shall prevail.
Indonesia.
Demikian kami sampaikan. Atas perhatiannya kami Thank you for your attention and co-operation.
ucapkan terima kasih.
Hormat kami/Sincerely yours,
PT Golden Energy Mines Tbk
Sudin, SH
Corporate Secretary
Tembusan/Copies :
- Direksi Perseroan/Board of Directors of the Company.
PT. Golden Energy Mines Tbk.
Sinar Mas Land Plaza Tower II, 6th Floor Jl. MH. Thamrin No. 51 Kav. 22, Jakarta Pusat 10350
Phone: (62) 21 50186 888 , Fax: (62) 21 3199 0319
Website: www.goldenenergymines.com
Page 2
1. PT Kuansing Inti Makmur (“KIM”) dan anak perusahaan
(KIM Blok) / and its subsidiaries (KIM Block)
Tidak ada kegiatan eksplorasi di area KIM Blok pada There is no exploration activity in the mine area of
periode Q3 2025. KIM Block for the period of Q3 2025.
2. PT Borneo Indobara (“BIB”)
2.1. Daerah Eksplorasi 2.1. Exploration Activity
Kegiatan pengeboran eksplorasi meliputi 3 kegiatan Exploration drilling activities include 3 main
utama, yaitu pengeboran eksplorasi preproduksi, activities, namely preproduction exploration
pengeboran eksplorasi pengembangan, dan drilling, development exploration drilling, and
pengeboran geoteknik. geotechnical drilling.
Kegiatan pengeboran preproduksi dilakukan untuk Preproduction drilling activities are carried
melengkapi data pemodelan geologi dan kualitas out to complement geological modeling data
batubara pada masing-masing area. Pengeboran and coal quality in each area. Development
eksplorasi pengembangan bertujuan untuk exploration drilling aims to obtain lithology
mendapatkan data litologi dan kualitas batubara and coal quality data for geological modeling
untuk pembuatan model geologi serta mendukung and to support the addition of new coal
penambahan sumberdaya batubara baru pada area resources in areas where exploration has
yang belum pernah dilakukan kegiatan eksplorasi. never been carried out. Geotechnical drilling
Kegiatan pengeboran geoteknik dilakukan untuk activities are carried out to determine the
mengetahui daya dukung tanah dan sifat fisik carrying capacity of the soil and the physical
batuan pada area pit penambangan dan disposal properties of the rock in the mining area and
serta di area project perusahaan. disposal area in the company.
Kegiatan pengeboran periode Q3 2025 dilakukan Drilling activities in Q3 2025 were carried out
pengeboran eksplorasi preproduksi di area by preproduction exploration in North
Girimulya Utara dan pengeboran geoteknik di area Girimulya and geotechnical drilling in South
Girimulya Selatan, Kusan Atas, Kusan Bawah dan Girimulya, Kusan Atas, Kusan Bawah and
Sebamban Bawah. Sebamban Bawah.
2.2. Metode Pengeboran 2.2. Drilling Methods
Pada periode Q3 2025, pengeboran eksplorasi For the period of Q3 2025, preproduction
preproduksi dilakukan dengan metode open hole exploration drilling was carried out using
dan part coring, sedangkan pengeboran geoteknik open holes and part coring, while
dilakukan dengan menggunakan metode SPT, coring geotechnical drilling was carried out using
dan pemasangan Piezometer. Kegiatan geofisika SPT, coring methods and installing
logging dilakukan di seluruh lubang bor yang telah Piezometer. Geophysical logging activities are
selesai dilakukan untuk memastikan kedalaman top carried out in all drilled holes that have been
dan bottom batubara sehingga ketebalan batubara completed to ensure the depth of the top and
dapat diketahui lebih akurat dan untuk mengetahui bottom of the coal so that the thickness of
varian dan karakteristik batuan non batubara the coal can be known more accurately and
berdasarkan perekaman gelombang gamma ray dan to determine the characteristics of non-coal
density. rock based on recording gamma ray waves
and density.
PT. Golden Energy Mines Tbk.
Sinar Mas Land Plaza Tower II, 6th Floor Jl. MH. Thamrin No. 51 Kav. 22, Jakarta Pusat 10350
Phone: (62) 21 50186 888 , Fax: (62) 21 3199 0319
Website: www.goldenenergymines.com
Page 3
2.3. Pelaksanaan dan Pengawasan Kegiatan Eksplorasi 2.3. Exploration Activities Progress & Supervision
Kegiatan pengeboran eksplorasi dan geoteknik Exploration and geotechnical drilling activities
dilakukan oleh Departemen Survey, Geotech & carried out by the Survey, Geotech &
Exploration (SGE) BIB. Exploration (SGE) Department of BIB.
Untuk mendukung kegiatan pengeboran eksplorasi To support the preproduction exploration
preproduksi dan eksplorasi pengembangan berupa drilling and development exploration
pengeboran open hole dan coring digunakan 2 unit activities such as open hole and coring
rig inhouse yaitu 1 unit tipe Jacro 175 dan 1 unit tipe geotechnical drilling, units type of inhouse rig
Jacro 500. Untuk pengeboran geoteknik dengan were used, which are 1 unit Jacro 175 and 1
metode SPT digunakan 1 unit rig tipe Jacro 200. unit Jacro 500. The geotechnical drilling with
Seluruh unit rig dioperasikan oleh drilling operator SPT method was used 1 unit rig of Jacro 200.
BIB. Kontraktor pengeboran PT ICE mengoperasikan All rig units were operated by BIB drilling
4 unit rig tipe Jacro 300 dan 1 unit rig tipe Jacro 200. operator. Drilling contractor PT ICE operated
Kegiatan geofisika logging dilakukan oleh PT Surtech 4 units rig of Jacro 300 and 1 unit rig of Jacro
Indonesia yang mengoperasikan 2 unit alat logging. 200. Geophysical logging activities were
carried out by PT Surtech Indonesia, which
operated 2 units of Geophysical logging.
Seluruh kegiatan pengeboran disupervisi langsung All drilling activities are directly supervised by
oleh Wellsite Geologist, Departemen SGE dan the Wellsite Geologist, SGE Department and
Evaluator Geologist Departemen Strategic, Plan & Geologist Evaluator, Strategic, Plan &
Optimization (SPO), seluruhnya dibawah Divisi Mine Optimization (SPO) Department, all under the
Development & Contract Management (MDC) BIB. Mine Development & Contract Management
(MDC) Division of BIB.
2.4. Kemajuan Eksplorasi 2.4. Exploration Progress
Kegiatan pengeboran eksplorasi selama periode Q3 Drilling exploration for the period of Q3 2025
2025 adalah sebagai berikut : are as follows :
Tabel 1.1. Kemajuan Pengeboran Ekplorasi dan Geoteknik periode Q3 2025/
Progress in Exploration and Geotechnical Drilling Period of Q3 2025
Lubang Geoteknik (m) / Lubang Eksplorasi (m) /
Geotech Drilling Exploration Drilling
Lokasi Jumlah Total kedalaman (m) / Jumlah Total kedalaman (m) /
Location lubang Total Depth lubang Total Depth
/ /
Total Drilling Logging Total Drilling Logging
Holes Holes
Girimulya Utara - - - 19 2.911 2.442,85
Girimulya Selatan 2 183 149,05 - - -
Kusan Atas 7 185 183,15 - - -
Kusan Bawah 3 102 99,85 - - -
Sebamban Bawah 7 203 201,45 - - -
PT. Golden Energy Mines Tbk.
Sinar Mas Land Plaza Tower II, 6th Floor Jl. MH. Thamrin No. 51 Kav. 22, Jakarta Pusat 10350
Phone: (62) 21 50186 888 , Fax: (62) 21 3199 0319
Website: www.goldenenergymines.com
Page 4
2.5. Biaya Eksplorasi 2.5. Drilling Cost
Untuk biaya eksplorasi selama periode Q3 2025 The exploration costs for the period of Q3
adalah sebagai berikut : 2025 are as follows :
Tabel 1.2. Biaya Pengeboran Eksplorasi dan Geoteknik RIG Inhouse periode Q3 2025 /
Exploration and Geotechnial Drilling Cost for the period of Q3 2025
Year to Date
Operating Expense
Anggaran / Plan (Rp) Realisasi / Realisation (Rp)
Biaya Pengeboran / Rp. 35.858.407.312,70 Rp. 26.303.247.928,70
Drilling Cost
3. PT Trisula Kencana Sakti (TKS)
Tidak ada kegiatan eksplorasi di area TKS pada periode There is no exploration activity in the mine area of
Q3 2025. TKS for the period of Q3 2025.
4. PT Berkat Satria Abadi (BSA) dan PT Wahana Rimba
Lestari (WRL)
Tidak ada kegiatan eksplorasi di area BSA dan WRL pada There is no exploration activity in the mine area of
periode Q3 2025. BSA and WRL for the period of Q3 2025.
5. PT Barasentosa Lestari (BSL)
5.1. Daerah Eksplorasi 5.1. Daerah Eksplorasi
Kegiatan pengeboran eksplorasi BSL periode Q3 Drilling activities of BSL in Q3 2025 was
2025 dilakukan di area Blok Belani Utara pada area conducted in the North Belani Block area
koridor. Tipe pengeboran meliputi pengeboran (corridor). The drilling types included open
open hole dan coring (partial) untuk mendapatkan hole and full coring to collect samples for coal
sample kualitas batubara. Pengeboran pada Q3 quality assessment. Notably, geophysical
2025 tidak dilengkapi dengan pengukuran geofisika logging measurements were not performed
logging. during this period.
5.2. Metode Pengeboran 5.2. Drilling Method
Pelaksanaan pengeboran pada blok Belani Drilling activities at Belani Block is carried out
dilaksanakan dengan memakai sistem grid, dengan using a grid system, with 50-100 meter
jarak antara cross line 50-100 meter dan jarak antar distance of cross line and 10-75 meter drill
lubang bor 10-75 meter, mengikuti jurus dan hole spacing, follow the strike and dip of coal
kemiringan (down dip) pelapisan batuan hingga seam with maximum Depth around 60-90
kedalaman maksimal 60-90 meter. Hal ini bertujuan meter. The purpose of grid system and
untuk memaksimalkan stripping ratio (SR) dan control maximum Dept for determine of
kemenerusan batubara. Rapatnya radius antar titik optimization stripping ratio (SR) and
PT. Golden Energy Mines Tbk.
Sinar Mas Land Plaza Tower II, 6th Floor Jl. MH. Thamrin No. 51 Kav. 22, Jakarta Pusat 10350
Phone: (62) 21 50186 888 , Fax: (62) 21 3199 0319
Website: www.goldenenergymines.com
Page 5
bor disebabkan adanya indikasi tingkat continuity of coal. The drill hole spacing is
kompleksitas geologi yang tinggi pada area relatively close, because drilling area have
pengeboran khususnya adanya struktur geologi high complexity geological condition, such as
patahan dengan offset (throw) lebih besar dari 20 structure geology fault with throw more than
meter, bidang perlapisan (dip) yang berubah terjah 20 meter. Beside that there are changed dip
dari 26° menjadi 88° dan jurus perlapisan (strike) of coal seam from 26° to be 88°, strike of coal
dari N 256 E menjadi N 135 E dan terdapat pola seam from N 256 E to be N 135 E and fold
lipatan pada lapisan batuan yang telah terbuka major presence at exposed of mining area.
(exposed).
Pengeboran yang dilakukan yaitu tipe lubang Drilling was conducted with open hole and
terbuka (open hole) dan part coring. Unit bor yang part coring type. The drill unit used are rigs
digunakan adalah rig tipe Jacro-200 dengan type Jacro-200 with 4 inch (diameter 96 mm)
diameter lubang bor (outside) HQ 4 inch (Ǿ 96 mm). drill holes (outside) HQ.
Pengambilan contoh sample batubara bertujuan The purpose of sampling of coal is to analyze
untuk dilakukan analisa kualitas batubara. the quality of the coal.
5.3. Pelaksanaan dan Pengawasan Kegiatan Eksplorasi 5.3. Implementation and Supervision of
Exploration Activities
Kegiatan pengeboran BSL periode Q3 2025 pada Drilling activities of BSL for the period of Q3
blok Belani dilakukan oleh tim eksplorasi dengan 1 2025 at Block Belani were carried out by the
unit rig di bawah supervisi Geologist Section drilling team with 1 rig under the supervision
Geology dan Geotech, Departemen Mine Planing & of the Geologist Section Geology and
Technical Service BSL. Geotech, BSL's Mine Planning & Technical
Service Department.
Kegiatan pengeboran Q3 2025 dilakukan satu shift Drilling activities on Q3 2025 was conducted
yaitu pagi dengan target kedalaman maksimal one shifts (day shift) with maximum depth
meteran per lubang bor sebesar 90 meter, tentunya target per hole is 90 meter and with standard
dengan memenuhi standar safety seperti adanya safety such as good lighting and other
penerangan yang cukup dan kelengkapan standar equipment to support operational drilling
lainnya. activity.
Unit Rig yang digunakan pada kegiatan pengeboran Drilling activity used 1 unit of Jacro-200. Spec
adalah tipe jacro-200, dengan spesifikasi diameter of rods pipe is 4 inch (96 mm) diameter drill
lubang bor (outside) HQ 4 inch (Ǿ 96 mm). Selain holes (outside) HQ Rods type. Other than
unit Rig Jacro juga terdapat unit SPT dengan palu. Jacro Rig unit, there is also an SPT unit with a
Unit rig jacro-200 ini merupakan unit dengan hammer. This Jacro-200 rig unit is designed to
spesifikasi target kedalaman pengeboran coring achieve a coring drill depth of up to 90
hingga 90 meter dan ukuran yang cukup besar, meters, and due to its relatively large size,
sehingga diperlukan unit alat berat (excavator atau heavy equipment (such as an excavator or
Bulldozer) untuk melakukan perpindahan unit dari bulldozer) is required to move the unit from
titik bor satu ke titik bor lainnya. one drill point to another.
Lubang bor yang telah selesai dilakukan Drill holes that have been finished then
pengeboran kemudian dilakukan pickup collar carried out by a pickup collar survey by the
survey oleh tim survey BSL yang terdiri dari 1 BSL survey team consisting of 1 surveyor
koordinator surveyor dan 2 crew survey. coordinator and 2 survey crews.
PT. Golden Energy Mines Tbk.
Sinar Mas Land Plaza Tower II, 6th Floor Jl. MH. Thamrin No. 51 Kav. 22, Jakarta Pusat 10350
Phone: (62) 21 50186 888 , Fax: (62) 21 3199 0319
Website: www.goldenenergymines.com
Page 6
5.4. Kemajuan Eksplorasi 5.4. Drilling Progress
Selama periode Q3 2025 kegiatan pengeboran in Q3 2025 exploration drilling activities in
eksplorasi di Blok Belani Utara (Koridor) telah North Belani Block (Coridor) have completed
menyelesaikan 3 lubang bor. Total kedalaman 3 drill holes. Total drill hole Depth in Q3 2025
lubang bor selama periode Q3 2025 adalah 125,46 were 125.46 meters as detailed in table 1.3.
meter rincian pada tabel 1.3.
Pengeboran dilakukan dengan tipe pengeboran Drilling was carried out using the partial
partiall coring dengan tujuan mendapatkan sample coring method with the aim of obtaining coal
batubara dan sample batubara untuk dilakukan samples for quality analysis. Additionally, SPT
analisa kualitas. Serta pengeboran SPT dilakukan drilling was performed to obtain values for
untuk mendapatkan nilai propertis batuan. rock properties.
Tabel 1.3 Kemajuan Pengeboran Ekplorasi BSL Periode Q3 2025 /
BSL Drilling Exploration Progress for the period of Q3 2025
Lubang Eksplorasi (m) /
Exploration Drilling
Lokasi / Jumlah Total kedalaman (m) /
Location lubang / Total Depth
Total (m)
Total Coring Full Coring
Holes Open Holes
(Infill) (Geotech)
Belani 3 118,76 6,70 125,46
5.5. Biaya Eksplorasi 5.5. Exploration Cost
Untuk biaya eksplorasi selama periode Q3 2025 The exploration costs for the period of Q3
adalah sebagai berikut : 2025 are as follows :
Tabel 1.4. Biaya Pengeboran Eksplorasi BSL periode Q3 2025 /
BSL Drilling Cost for the period of Q3 2025
Year to Date
Operating Expense
Anggaran / Plan (Rp) Realisasi / Realisation (Rp)
Biaya Pengeboran BSL / Drilling Cost BSL Rp. 780.763.730,- Rp. 624.740.721,-
PT. Golden Energy Mines Tbk.
Sinar Mas Land Plaza Tower II, 6th Floor Jl. MH. Thamrin No. 51 Kav. 22, Jakarta Pusat 10350
Phone: (62) 21 50186 888 , Fax: (62) 21 3199 0319
Website: www.goldenenergymines.com
Names mentioned 20 people and organisations named in the text · linked when the evidence is strong
unresolved
person
Vera Florida
p.1
unresolved
org
Indonesia Stock Exchange
p.1
unresolved
org
PT Golden Energy Mines Tbk Sudin
p.1
unresolved
person
Sudin, SH
· Corporate Secretary
p.1
unresolved
org
PT Kuansing Inti Makmur
p.2
unresolved
org
Departemen Survey
p.3
unresolved
org
PT ICE
p.3 ×2
unresolved
org
PT Surtech
p.3
unresolved
org
PT Surtech Indonesia
p.3
unresolved
org
Departemen SGE
p.3
unresolved
org
Departemen Strategic
p.3
unresolved
org
PT Trisula Kencana Sakti
p.4
unresolved
org
PT Berkat Satria Abadi
p.4
unresolved
org
PT Wahana Rimba Lestari
p.4
unresolved
org
PT Barasentosa Lestari
p.4
unresolved
org
Departemen Mine Planing
p.5
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