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20251007_ADRO_Laporan Bulanan Aktivitas Eksplorasi_31965260.pdf

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 Nomor Surat                          ALAM/099/X-25/corsec

 Nama Perusahaan                      Alamtri Resources Indonesia Tbk

 Kode Emiten                          ADRO

 Lampiran                             0

 Perihal                              Laporan Bulanan Aktivitas Eksplorasi

Perseroan melaporkan aktivitas eksplorasi untuk OCT 2025 Sebagai Berikut :

                                                                                        Hasil aktivitas
      Nama             Area yang
                                    Total biaya yang     Pihak yang      Metode          eksplorasi
   Perusahaan/         dilakukan                                                                        Rencana tindak
                                          telah          melakukan    pengujian dan     hingga akhir
      Anak              aktivitas                                                                           lanjut
                                      dikeluarkan        eksplorasi   pemilihan area       periode
   perusahaan          eksplorasi
                                                                                        pelaporan ini
   PT Maruwai        East Maruwai      5.201.426         Internal PT   Pengeboran      Sampai dengan Pengeboran
      Coal               Area                           Maruwai Coal, open hole dan      kuartal ketiga   tetap akan
                                                       PT Duta Borneo    coring        tahun 2025, PT dilakukan untuk
                                                        Mining (DBM),                    Maruwai Coal mendapatkan
                                                            dan PT                      menyelesaikan informasi lebih
                                                          Indonesia                       561 titik bor detail mengenai
                                                       Carbon Energy                    dengan 35.701 penambahan
                                                             (ICE)                     meter open hole potensi batu
                                                                                       dan 8.376 meter bara di luar area
                                                                                            coring.        tambang
                                                                                                          Lampunut.
  PT Lahai Coal           N/A              0                N/A              N/A              N/A              N/A


 Demikian untuk diketahui.


 Hormat Kami,
 Alamtri Resources Indonesia Tbk




 Maharani Cindy Opssedha

 Corporate Secretary




 Alamtri Resources Indonesia Tbk
 Menara Karya 23rd Floor Jl. H.R. Rasuna Said, Block X-5, Kav. 1-2 Jakarta 12950
 Telepon : 021-25533000, Fax : 021-5211266, www.alamtri.com



 Nama Pengirim                        Maharani Cindy Opssedha

 Jabatan                              Corporate Secretary
 Tanggal dan Waktu                    09-10-2025 16:03




   Dokumen ini merupakan dokumen resmi Alamtri Resources Indonesia Tbk yang tidak memerlukan tanda tangan
 karena dihasilkan secara elektronik oleh sistem pelaporan elektronik. Alamtri Resources Indonesia Tbk bertanggung
                           jawab penuh atas informasi yang tertera didalam dokumen ini.
Page 2
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 Letter / Announcement No.             ALAM/099/X-25/corsec

 Issuer Name                           Alamtri Resources Indonesia Tbk

 Issuer Code                           ADRO

 Attachment                            0

 Subject                               Monthly Exploration Activities Report

The Company reports exploration activities for OCT 2025 as follows :

 Company name/ Exploration                 Total cost       Parties     Testing methods    Results of     Follow up plan
   Subsidiary  activities area              incurred      exploration    and selection     exploration
                                                                              area       activities until
                                                                                         the end of the
                                                                                        reporting period

    PT Maruwai          East Maruwai    5,201,426         Internal PT   Pengeboran      Sampai dengan Pengeboran
       Coal                 Area                         Maruwai Coal, open hole dan      kuartal ketiga   tetap akan
                                                        PT Duta Borneo    coring        tahun 2025, PT dilakukan untuk
                                                         Mining (DBM),                    Maruwai Coal mendapatkan
                                                             dan PT                      menyelesaikan informasi lebih
                                                           Indonesia                       561 titik bor detail mengenai
                                                        Carbon Energy                    dengan 35.701 penambahan
                                                              (ICE)                     meter open hole potensi batu
                                                                                        dan 8.376 meter bara di luar area
                                                                                             coring.        tambang
                                                                                                           Lampunut.
  PT Lahai Coal             N/A                0             N/A               N/A             N/A              N/A


 Thus to be informed accordingly.


 Respectfully,
 Alamtri Resources Indonesia Tbk




 Maharani Cindy Opssedha

 Corporate Secretary




 Alamtri Resources Indonesia Tbk
 Menara Karya 23rd Floor Jl. H.R. Rasuna Said, Block X-5, Kav. 1-2 Jakarta 12950
 Phone : 021-25533000, Fax : 021-5211266, www.alamtri.com



 Sender Name                           Maharani Cindy Opssedha

 Function                              Corporate Secretary

 Date and Time                         09-10-2025 16:03




      This is an official document of Alamtri Resources Indonesia Tbk that does not require a signature as it was
  generated electronically by the electronic reporting system. Alamtri Resources Indonesia Tbk is fully responsible for
                                     the information contained within this document.

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Published9 Oct 2025
Pages2
Characters6,548
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Names mentioned 7 people and organisations named in the text · linked when the evidence is strong

linked person Maharani Cindy Opssedha · Corporate Secretary p.1 ×5
possible org Alamtri Resources Indonesia Tbk · Nama Perusahaan p.1 ×18
unresolved org PT Maruwai p.1 ×2
unresolved org PT Duta Borneo p.1 ×2
unresolved org PT Lahai Coal p.1 ×2
unresolved org Cindy Opssedha p.1 ×2
unresolved — Nama Pengirim p.1

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