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 Nomor Surat                           L9.013C-2026.164

 Nama Perusahaan                       Elnusa Tbk

 Kode Emiten                           ELSA

 Lampiran                              2
                                       Teknologi Seismik Perkuat Daya Saing, Elnusa Raih Kepercayaan Proyek
 Perihal
                                       Non-Captive Lanjutan di Sumatera Selatan


Dengan ini kami untuk dan atas nama perusahaan menyampaikan Laporan Informasi atau Fakta Material sebagai
berikut:

 Nama Emiten atau Perusahaan Publik            Elnusa Tbk

 Bidang Usaha                                  Jasa Energi



 Telepon                                       (021) 788-30850

 Faksimili                                     (021) 788-30883

 Alamat Surat Elektronik (email)               corporate@elnusa.co.id


 Tanggal Kejadian                              03 September 2026
 Jenis Informasi atau Fakta Material           Teknologi Seismik Perkuat Daya Saing, Elnusa Raih
                                               Kepercayaan Proyek Non-Captive Lanjutan di Sumatera
                                               Selatan

Page 2
Uraian Informasi atau Fakta Material   Jakarta, 3 September 2026 - PT Elnusa Tbk (IDX: ELSA),
                                       perusahaan jasa energi terintegrasi yang tergabung dalam
                                       Subholding Upstream Pertamina,
                                       terus memperkuat pasar non-captive melalui kapabilitas
                                       teknologi dan operational excellence. Elnusa kembali
                                       memperoleh kepercayaan dari pelanggan di luar Pertamina
                                       Group untuk melaksanakan dua proyek Survei Seismik 3D
                                       dengan total area sekitar 150 km2 di Kabupaten Musi
                                       Banyuasin, Sumatera Selatan. Proyek yang ditargetkan
                                       selesai pada awal 2027 tersebut melanjutkan dua pekerjaan
                                       seismik 3D sebelumnya seluas 365 km2 di area berdekatan.
                                       Keberlanjutan proyek dari pelanggan yang sama menjadi
                                       salah satu bentuk kepercayaan terhadap kemampuan Elnusa
                                       dalam mengelola pekerjaan seismik dengan kompleksitas
                                       teknis dan operasional yang tinggi. Secara kumulatif,
                                       rangkaian pekerjaan tersebut mencakup area sekitar 515 km2,
                                       sekaligus memperkuat rekam jejak Perseroan di pasar
                                       geoscience non-captive. Pengembangan pasar di luar
                                       ekosistem Pertamina menjadi bagian dari strategi Elnusa
                                       untuk memperluas basis pelanggan, mengoptimalkan utilisasi
                                       aset dan kompetensi, serta membuka sumber pertumbuhan
                                       baru.
                                       Corporate Secretary Elnusa, Rustam Aji, mengatakan
                                       keberlanjutan kepercayaan pelanggan menunjukkan bahwa
                                       kapabilitas yang dibangun Elnusa mampu bersaing di pasar
                                       eksternal. "Bagi kami, proyek non-captive merupakan validasi
                                       terhadap daya saing Elnusa. Kepercayaan untuk kembali
                                       mengerjakan proyek di area yang berdekatan menunjukkan
                                       bahwa teknologi, kompetensi personel, serta kualitas eksekusi
                                       yang kami bangun dapat memberikan value bagi pelanggan.
                                       Strategi kami adalah terus mengkonversi keunggulan tersebut
                                       menjadi peluang pasar dan pertumbuhan bisnis yang
                                       berkelanjutan," ujar Rustam.
                                       Dalam pelaksanaan proyek, Elnusa mengoptimalkan teknologi
                                       STRYDE Nimble Seismic System sebagai bagian dari
                                       penguatan teknologi seismik generasi terbaru yang dilakukan
                                       Perseroan sejak awal 2026. Sebelumnya, Elnusa telah
                                       melakukan investasi strategis pada 25.000 STRYDE Range+
                                       nodes yang didukung STRYDE Nimble System dan STRYDE
                                       Mini System. Kombinasi teknologi tersebut memberikan
                                       fleksibilitas lebih tinggi dalam desain dan pelaksanaan survei,
                                       mendukung pengerjaan proyek secara simultan, serta
                                       mengoptimalkan penggunaan sumber daya untuk akuisisi
                                       seismik 2D maupun 3D.
                                       Teknologi nodal tersebut juga mendukung akuisisi data
                                       seismik berdensitas tinggi dengan kualitas yang lebih baik,
                                       mempercepat siklus survei, serta meningkatkan efisiensi
                                       operasi. Karakter perangkat yang ringkas dan fleksibel
                                       memberikan keunggulan dalam menghadapi kondisi lapangan
                                       yang kompleks dan akses yang terbatas. Bagi Elnusa,
                                       investasi teknologi tidak hanya diarahkan untuk memperkuat
                                       kapabilitas teknis, tetapi juga untuk meningkatkan
                                       produktivitas aset, daya saing layanan, dan kemampuan
                                       Perseroan menangkap peluang pasar yang lebih luas.
                                       Keunggulan tersebut relevan dengan karakter dua proyek di
                                       Kabupaten Musi Banyuasin yang melintasi kondisi area
                                       beragam, mulai dari kawasan hutan, aliran sungai, area
                                       pertambangan hingga permukiman masyarakat. Kondisi
                                       tersebut membutuhkan perencanaan survei yang adaptif,
                                       kesiapan personel dan teknologi, serta pengelolaan operasi
                                       yang disiplin. Elnusa juga memastikan aspek HSSE,
                                       kepatuhan terhadap regulasi dan perizinan, serta komunikasi
                                       dan sosialisasi dengan pemerintah daerah, masyarakat dan

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                                        pemangku kepentingan setempat menjadi bagian integral
                                        dalam setiap tahapan pekerjaan.
                                        Penguatan bisnis geoscience tersebut sejalan dengan arah
                                        strategis Elnusa untuk menjadikan teknologi dan inovasi
                                        sebagai salah satu penggerak pertumbuhan. Kapabilitas
                                        seismik Elnusa tidak hanya ditopang oleh teknologi terkini,
                                        tetapi juga pengalaman dalam mengelola berbagai proyek
                                        onshore maupun offshore dengan skala dan karakteristik yang
                                        beragam. Kombinasi technology, people dan execution
                                        capability tersebut menjadi competitive advantage Perseroan
                                        dalam memperluas penetrasi pasar, baik di dalam maupun di
                                        luar ekosistem Pertamina.
                                        "Ke depan, kami ingin memastikan setiap investasi teknologi
                                        dapat menghasilkan nilai ekonomi yang semakin optimal.
                                        Artinya, teknologi tidak berhenti sebagai peningkatan
                                        kapabilitas, tetapi harus mampu meningkatkan efisiensi,
                                        menjawab kebutuhan pelanggan, memperluas pasar, dan
                                        pada akhirnya menciptakan nilai jangka panjang bagi
                                        Perseroan dan pemegang saham," tambah Rustam.
                                        Melalui penguatan teknologi seismik dan perluasan pasar non-
                                        captive, Elnusa terus memperkuat positioning sebagai
                                        technology-driven energy services company. Strategi tersebut
                                        melengkapi kekuatan bisnis Elnusa di dalam ekosistem
                                        Pertamina sekaligus membangun basis pelanggan yang
                                        semakin beragam, sehingga mendukung daya saing dan
                                        pertumbuhan Perseroan secara berkelanjutan.

                                        Sekilas Elnusa (IDX: ELSA)
                                        PT Elnusa Tbk (ELNUSA, IDX: ELSA) merupakan perusahaan
                                        jasa energi terintegrasi yang telah menjadi bagian dari
                                        perjalanan industri energi Indonesia selama lebih dari 56
                                        tahun. Sebagai bagian dari Subholding Upstream Pertamina,
                                        Elnusa menghadirkan solusi terintegrasi mulai dari jasa hulu
                                        migas, penjualan barang dan jasa distribusi & logistik energi,
                                        hingga jasa penunjang energi yang mendukung rantai nilai
                                        energi nasional. Layanan hulu migas Elnusa mencakup jasa
                                        geoscience & reservoir, pengeboran dan perawatan sumur,
                                        serta engineering, procurement, construction & operation
                                        maintenance (EPC-OM). Pada lini penjualan barang dan jasa
                                        distribusi & logistik energi, Elnusa menyediakan layanan
                                        transportasi BBM, pengelolaan depot, dan penjualan chemical,
                                        sementara jasa penunjang meliputi marine support, fabrikasi,
                                        hingga manajemen data. Berbekal inovasi, keunggulan
                                        operasional, dan tata kelola yang baik, Elnusa terus
                                        menciptakan nilai berkelanjutan bagi seluruh pemangku
                                        kepentingan. Informasi lebih lanjut tersedia di
                                        www.elnusa.co.id.

Dampak kejadian, informasi atau fakta   Tidak ada dampak
material tersebut terhadap kegiatan
operasional, hukum, kondisi keuangan,
atau kelangsungan usaha Emiten atau
Perusahaan Publik



Demikian untuk diketahui.


Hormat Kami,
Elnusa Tbk

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Sevy Liana

Manager Corporate Governance & BOD Support




Elnusa Tbk
Graha Elnusa, Jl. TB Simatupang Kav. 1B, Jakarta 12560
Telepon : (021) 788-30850, Fax : (021) 788-30883, www.elnusa.co.id



Nama Pengirim                     Sevy Liana

Jabatan                           Manager Corporate Governance & BOD Support
Tanggal dan Waktu                 04-09-2026 08:50

Lampiran                          1. Press Release - Survei Seismik 3D Sumsel.pdf


                                  2. Siaran Pers - Survei Seismik 3D Sumsel.pdf


Dokumen ini merupakan dokumen resmi Elnusa Tbk yang tidak memerlukan tanda tangan karena dihasilkan secara
  elektronik oleh sistem pelaporan elektronik. Elnusa Tbk bertanggung jawab penuh atas informasi yang tertera
                                               didalam dokumen ini.

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Go To Indonesian Page

 Letter / Announcement No.           L9.013C-2026.164

 Issuer Name                         Elnusa Tbk

 Issuer Code                         ELSA

 Attachment                          2

 Subject                             Seismic Technology Strengthens Competitiveness, Elnusa Secures Continued
                                     Non-Captive Projects in South Sumatra

The company hereby announce the Material Information or Facts Report as follows

 Name of Issuer or Public Company            Elnusa Tbk

 Business Activities                         Jasa Energi


 Telephone                                   (021) 788-30850

 Faximile                                    (021) 788-30883

 Email Address                               corporate@elnusa.co.id


 Date of Event                               03 September 2026

                                             Seismic Technology Strengthens Competitiveness, Elnusa
 Type of Material Information or Facts       Secures Continued Non-Captive Projects in South Sumatra

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Description of Material Information or   Jakarta, 3 September 2026 - PT Elnusa Tbk (IDX: ELSA), an
Facts                                    integrated energy services company and part of Pertamina's
                                         Upstream Subholding, continues to strengthen its presence in
                                         the non-captive market through technological capabilities and
                                         operational excellence. Elnusa has once again earned the
                                         trust
                                         of a customer outside the Pertamina Group to undertake two
                                         3D Seismic Survey projects covering a total area of
                                         approximately 150 km2 in Musi Banyuasin
                                         Regency, South Sumatra. Targeted for completion in early
                                         2027, these projects follow two previous 3D seismic projects
                                         covering 365 km2 in adjacent areas.
                                         The continuation of projects from the same customer reflects
                                         confidence in Elnusa's ability to manage seismic operations
                                         with a high degree of technical and operational complexity.
                                         Cumulatively, the series of projects covers approximately 515
                                         km2, further strengthening the Company's track record in the
                                         non-captive geoscience market. Expanding beyond the
                                         Pertamina ecosystem forms part of Elnusa's strategy to
                                         broaden its customer base, optimize the utilization of its assets
                                         and competencies, and unlock new sources of growth.
                                         Elnusa Corporate Secretary, Rustam Aji, said that continued
                                         customer confidence demonstrates that the capabilities
                                         developed by Elnusa are competitive
                                         in the external market. "For us, non-captive projects serve as
                                         validation of Elnusa's competitiveness. Being entrusted once
                                         again to undertake projects in adjacent areas demonstrates
                                         that the technology, personnel competencies, and execution
                                         quality we have developed are capable of delivering value to
                                         our customers. Our strategy is to continue converting these
                                         strengths into market opportunities and sustainable business
                                         growth," said Rustam.
                                         In executing the projects, Elnusa is optimizing the STRYDE
                                         Nimble Seismic System as part of the Company" efforts to
                                         strengthen its next-generation seismic technology capabilities
                                         since early 2026. Previously, Elnusa made a strategic
                                         investment in 25,000 STRYDE Range+ nodes, supported by
                                         the STRYDE
                                         Nimble System and STRYDE Mini System. This combination
                                         of technologies provides greater flexibility in survey design and
                                         execution, enables
                                         simultaneous project operations, and optimizes resource
                                         utilization for both 2D and 3D seismic acquisition.
                                         The nodal technology also supports higher-density seismic
                                         data acquisition with improved data quality, accelerates survey
                                         cycles, and enhances operational efficiency. Its compact and
                                         flexible design provides an advantage when operating in
                                         complex field conditions and areas with limited access.
                                         For Elnusa, technology investment is not only aimed at
                                         strengthening technical capabilities, but also at improving
                                         asset productivity, enhancing service competitiveness, and
                                         increasing the Company's ability to capture broader market
                                         opportunities.
                                         These advantages are particularly relevant to the
                                         characteristics of the two projects in Musi Banyuasin Regency,
                                         which traverse diverse environments ranging from forest areas
                                         and rivers to mining areas and residential communities. Such
                                         conditions require adaptive survey planning, readiness of
                                         personnel and technology, as well as disciplined operational
                                         management. Elnusa also ensures that Health, Safety,
                                         Security & Environment (HSSE), regulatory and permitting
                                         compliance, as well as communication and engagement with
                                         local governments, communities, and other local stakeholders,

Page 7
                                            remain integral to every stage of project execution.
                                            The strengthening of Elnusa's geoscience business is aligned
                                            with the Company's strategic direction to position technology
                                            and innovation as key drivers
                                            of growth. Elnusa's seismic capabilities are supported not only
                                            by advanced technology, but also by extensive experience in
                                            managing various onshore
                                            and offshore projects of different scales and characteristics.
                                            This combination of technology, people, and execution
                                            capability represents a competitive advantage for the
                                            Company in expanding market penetration both within and
                                            beyond the Pertamina ecosystem.
                                            "Going forward, we want to ensure that every technology
                                            investment generates increasingly optimal economic value.
                                            This means technology must go beyond enhancing
                                            capabilities; it must improve efficiency, address customer
                                            needs, expand market reach, and ultimately create long-term
                                            value for the
                                            Company and its shareholders," added Rustam.
                                            Through the strengthening of seismic technology and
                                            expansion into the non-captive market, Elnusa continues to
                                            reinforce its positioning as a technologydriven energy services
                                            company. This strategy complements Elnusa,s strong
                                            business presence within the Pertamina ecosystem while
                                            building an increasingly diversified customer base, thereby
                                            supporting the Company's competitiveness and sustainable
                                            growth

                                            About Elnusa (IDX: ELSA)
                                            PT Elnusa Tbk (ELNUSA, IDX: ELSA) is an integrated energy
                                            services company that has been part of Indonesia's energy
                                            industry journey for more than 56 years. As part of Pertamina's
                                            Upstream Subholding, Elnusa delivers integrated solutions
                                            spanning upstream oil and gas services, energy distribution
                                            and
                                            logistics products and services, as well as energy support
                                            services that contribute to the national energy value chain.
                                            Elnusa's upstream oil and gas services include geoscience &
                                            reservoir services, drilling and well services, and engineering,
                                            procurement, construction & operation maintenance (EPC-
                                            OM). In its energy distribution and logistics products and
                                            services segment, Elnusa provides fuel transportation, depot
                                            management, and chemical sales, while its supporting services
                                            include marine support, fabrication, and data management.
                                            Driven by innovation, operational excellence, and good
                                            corporate governance, Elnusa continues to create sustainable
                                            value for all stakeholders. Further information can be accessed
                                            at www.elnusa.co.id
 Impact of event, material information or   No impact
 facts towards Issuers or Public
 Company’s operational activities, legal,
 financial condition, or going concern




Thus to be informed accordingly.


Respectfully,
Elnusa Tbk

Page 8
Sevy Liana

Manager Corporate Governance & BOD Support




Elnusa Tbk
Graha Elnusa, Jl. TB Simatupang Kav. 1B, Jakarta 12560
Phone : (021) 788-30850, Fax : (021) 788-30883, www.elnusa.co.id



Sender Name                         Sevy Liana

Function                            Manager Corporate Governance & BOD Support

Date and Time                       04-09-2026 08:50

Attachment                         1. Press Release - Survei Seismik 3D Sumsel.pdf


                                   2. Siaran Pers - Survei Seismik 3D Sumsel.pdf


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

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