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No. 003/GEMS-CS/I/2026 Jakarta, 12 Januari/January 2026
Kepada Yth.:
Direksi PT Bursa Efek Indonesia
Gedung Bursa Efek Indonesia Tower I
Jln. Jend. Sudirman Kav 52-53
Jakarta 10190
U.p. : : Kepala Divisi Penilaian Perusahaan 2) /
Head of Corporate Valuation Division 2
Perihal : Laporan Aktivitas Eksplorasi periode Q4 2025 Subject : Exploration Activity Q4 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 Q4 2025 of the
periode Q4 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 Q4 2025. KIM Block for the period of Q4 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 Q4 2025 dilakukan Drilling activities in Q4 2025 were carried out
pengeboran eksplorasi preproduksi di area by preproduction exploration in North
Girimulya Utara. Girimulya.
2.2. Metode Pengeboran 2.2. Drilling Methods
Pada periode Q4 2025, pengeboran eksplorasi For the period of Q4 2025, preproduction
preproduksi dilakukan dengan metode open hole exploration drilling was carried out using
dan part coring. Kegiatan geofisika logging open holes and part coring. Geophysical
dilakukan di seluruh lubang bor yang telah selesai logging activities are carried out in all drilled
dilakukan untuk memastikan kedalaman top dan holes that have been completed to ensure
bottom batubara sehingga ketebalan batubara the depth of the top and bottom of the coal
dapat diketahui lebih akurat dan untuk mengetahui so that the thickness of the coal can be
varian dan karakteristik batuan non batubara known more accurately and to determine the
berdasarkan perekaman gelombang gamma ray dan characteristics of non-coal rock based on
density. recording gamma ray waves and density.
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
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
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.. Seluruh unit rig dioperasikan oleh drilling were used, which are 1 unit Jacro 175 and 1
operator BIB. unit Jacro 500. All rig units were operated by
BIB drilling operator.
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 Q4 Drilling exploration for the period of Q4 2025
2025 adalah sebagai berikut : are as follows :
Tabel 1.1. Kemajuan Pengeboran Ekplorasi dan Geoteknik periode Q4 2025/
Progress in Exploration and Geotechnical Drilling Period of Q4 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 - - - 37 5.578,25 5.143,60
2.5. Biaya Eksplorasi 2.5. Drilling Cost
Untuk biaya eksplorasi selama periode Q4 2025 The exploration costs for the period of Q4
adalah sebagai berikut : 2025 are as follows :
Tabel 1.2. Biaya Pengeboran Eksplorasi dan Geoteknik RIG Inhouse periode Q4 2025 /
Exploration and Geotechnial Drilling Cost for the period of Q4 2025
Year to Date
Operating Expense
Anggaran / Plan (Rp) Realisasi / Realisation (Rp)
Biaya Pengeboran / Rp. 43.021.789.073,70 Rp. 30.265.844.243,-
Drilling Cost
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
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
Q4 2025. TKS for the period of Q4 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 Q4 2025. BSA and WRL for the period of Q4 2025.
5. PT Barasentosa Lestari (BSL)
5.1. Daerah Eksplorasi 5.1. Daerah Eksplorasi
Kegiatan pengeboran eksplorasi BSL periode Q4 Drilling activities of BSL in Q4 2025 was
2025 dilakukan di area Blok Muara Lakitan. Tipe conducted in the Muara Lakitan Block area.
pengeboran meliputi pengeboran open hole, coring The drilling types included open hole, coring
(partial) dan full coring untuk mendapatkan sample (partial) and full coring to collect samples for
kualitas batubara dam sample geoteknik. coal quality and geotechnical samples. Drilling
Pengeboran pada Q4 2025 dilengkapi dengan activities in Q4 2025 was complemented by
pengukuran geofisika logging dan pick up survey geophysical logging measurements and
titik bor. drillhole pick up survey.
5.2. Metode Pengeboran 5.2. Drilling Method
Pelaksanaan pengeboran pada blok Muara Lakitan Drilling activities at Muara Lakitan Block is
dilaksanakan dengan memakai sistem grid, dengan carried out using a grid system, with 30-
jarak antara cross line 300-1.000 meter dan jarak 1,000 meter distance of cross line and 50-300
antar lubang bor 50-300 meter, mengikuti jurus dan meter drill hole spacing, follow the strike and
kemiringan (down dip) pelapisan batuan hingga dip of coal seam with maximum Depth
kedalaman maksimal 60-150 meter. Hal ini around 60-150 meter. The purpose of grid
bertujuan untuk memaksimalkan stripping ratio system and control maximum Dept for
(SR) dan kemenerusan batubara. Mengingat determine of optimization stripping ratio (SR)
beberapa data pengeboran lama yang tidak and continuity of coal. Considering some of
dilengkapi dengan geofisika logging lengkap, coal the old drilling data has not performed with
recovery <95% dan ketidaksesuaian interval geophysical logging, coal recovery is less than
batubara drillhole model serta quality perlu 95%, and there are discrepancies in the coal
dilakukan infill drilling dan konfirmasi. interval of the drillhole model as well as in
quality, infill drilling and confirmation need to
be carried out.
Pengeboran yang dilakukan yaitu tipe lubang Drilling was conducted with open hole, part
terbuka (open hole), part coring dan full coring. Unit coring and full coring type. The drill unit used
bor yang digunakan adalah rig tipe Jacro-175/200 are rigs type Jacro-175/200 and type Jacro-
dan tipe Jacro-300 dengan diameter lubang bor 300 with 4 inch (diameter 96 mm) drill holes
(outside) HQ 4 inch (Ǿ 96 mm). (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.
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
5.3. Pelaksanaan dan Pengawasan Kegiatan Eksplorasi 5.3. Implementation and Supervision of
Exploration Activities
Kegiatan pengeboran BSL periode Q4 2025 pada Drilling activities of BSL for the period of Q4
blok Belani dilakukan oleh PT ICE (Indonesia Carbon 2025 at Block Belani were carried out by PT
Energy) dengan 3 unit rig di bawah supervisi ICE with 3 rig under the supervision of the
Geologist Section Geology dan Geotech, Geologist Section Geology and Geotech, BSL's
Departemen Mine Planing & Technical Service BSL. Mine Planning & Technical Service
Department.
Kegiatan pengeboran Q4 2025 dilakukan dua shift Drilling activities on Q4 2025 was conducted 2
yaitu pagi dan malam dengan target kedalaman shifts (day and night shift) with depth target
lubang bor sebesar 80-150 meter, dengan per hole is 80-150 meter complied with safety
memenuhi standar safety. standard.
Unit Rig yang digunakan pada kegiatan pengeboran Drilling activity used 1 unit of Jacro-175/200
adalah tipe Jacro-175/200 dan Jacro-300, dengan and Jacro-300. Spec of rods pipe is 4 inch (96
spesifikasi diameter lubang bor (outside) HQ 4 inch mm) diameter drill holes (outside) HQ Rods
(Ǿ 96 mm). Unit rig jacro-300 ini merupakan unit type. This Jacro-300 rig unit is designed to
dengan spesifikasi target kedalaman pengeboran achieve a full coring drill depth of up to 150
full coring hingga 150 meter dan ukuran yang cukup meters, and due to its relatively large size,
besar, sehingga diperlukan unit alat berat heavy equipment (such as an excavator or
(excavator atau Bulldozer) untuk melakukan bulldozer) is required to move the unit from
perpindahan unit dari titik bor satu ke titik bor one drill point to another.
lainnya. Drill holes that have been finished then
Lubang bor yang telah selesai dilakukan carried out by a pickup collar survey by the
pengeboran kemudian dilakukan pickup collar BSL survey team consisting of 1 surveyor
survey oleh tim survey BSL yang terdiri dari 1 coordinator and 2 survey crews.
koordinator surveyor dan 2 crew survey.
5.4. Kemajuan Eksplorasi 5.4. Drilling Progress
Selama periode Q4 2025 kegiatan pengeboran in Q4 2025 exploration drilling activities in
eksplorasi di Blok Muara Lakitan telah Muara Lakitan Block have completed 15 drill
menyelesaikan 15 lubang bor. Total kedalaman holes. Total drill hole Depth in Q4 2025 were
lubang bor selama periode Q4 2025 adalah 1,542.50 meters as detailed in table 1.3.
1.542,50 meter rincian pada tabel 1.3.
Pengeboran dilakukan dengan tipe pengeboran Drilling was carried out using the partial
partial coring dan full coring dengan tujuan coring and full coring method with the aim of
mendapatkan sample batubara dan sample obtaining coal samples for quality analysis
batubara untuk dilakukan analisa kualitas dan and geotechnical samples for slope stability
sample geoteknik untuk kestabilan lereng tambang analysis of the mine and disposal areas.
dan disposal.
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
Tabel 1.3 Kemajuan Pengeboran Ekplorasi BSL Periode Q4 2025 /
BSL Drilling Exploration Progress for the period of Q4 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)
Muara Lakitan 15 942,6 365,9 234 1.542,50
5.5. Biaya Eksplorasi 5.5. Exploration Cost
Untuk biaya eksplorasi selama periode Q4 2025 The exploration costs for the period of Q4
adalah sebagai berikut : 2025 are as follows :
Tabel 1.4. Biaya Pengeboran Eksplorasi BSL periode Q4 2025 /
BSL Drilling Cost for the period of Q4 2025
Year to Date
Operating Expense
Anggaran / Plan (Rp) Realisasi / Realisation (Rp)
Biaya Pengeboran BSL / Drilling Cost BSL Rp. 1.275.723.448,- Rp. 1.182.048.897,-
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 17 people and organisations named in the text · linked when the evidence is strong
unresolved
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Indonesia Stock Exchange
p.1
unresolved
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PT Golden Energy Mines Tbk Sudin
p.1
unresolved
person
Sudin, SH
· Corporate Secretary
p.1
unresolved
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PT Kuansing Inti Makmur
p.2
unresolved
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Departemen Survey
p.2
unresolved
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Departemen SGE
p.3
unresolved
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Departemen Strategic
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PT Trisula Kencana Sakti
p.4
unresolved
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PT Berkat Satria Abadi
p.4
unresolved
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PT Wahana Rimba Lestari
p.4
unresolved
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PT Barasentosa Lestari
p.4
unresolved
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PT ICE
p.5
unresolved
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Departemen Mine Planing & Technical Service BSL.
p.5
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