20260618_ELSA_Laporan Informasi dan Fakta Material_32101981_lamp2.pdf

Narahubung:
Jayanty Oktavia Maulina (Anty)
Manager of Corporate Communications
Graha Elnusa 16th Floor, Jl. TB Simatupang Kav. 1B, Jakarta 12560
Tel: (021) 7883 0850 | Fax: (021) 7883 0907 | Mob: +62813 1787 1717
E-mail: jayanty.maulina@elnusa.co.id


Press Release
          Elnusa Strengthens National Energy Security through Deepwater Seismic
                     Technology in the Offshore 3D Kandawulo Project
Jakarta, June 18, 2026 – PT Elnusa Tbk (IDX: ELSA), an integrated energy services company under Pertamina’s Upstream Subholding, once
again demonstrates its technological and operational capabilities through its strategic involvement in the Offshore 3D Kandawulo Seismic
Project in the Makassar Strait. This project represents a significant contribution to supporting the national energy security agenda by providing
high-quality subsurface data to accelerate the identification of new oil and gas reserves.

Covering a survey area of approximately 2,500 square kilometers with water depths ranging from 900 to 2,000 meters, the Kandawulo
Project is one of Indonesia’s high-complexity deepwater seismic surveys. The successful execution of this project further underscores Elnusa’s
capability in delivering advanced exploration services in frontier areas targeted for future energy development.

In this project, Elnusa implemented broadband seismic data acquisition technology using the Marine Streamer method, enabling higher-
resolution subsurface imaging with a broader frequency range. This technology is supported by integrated navigation, positioning, and quality
control systems, allowing real-time data quality monitoring to enhance both accuracy and operational efficiency.

The application of a slanted tow configuration enables improved signal-to-noise ratio, resulting in clearer and more accurate subsurface
geological imaging. This capability plays a crucial role in reducing exploration uncertainty and increasing confidence in oil and gas investment
decision-making.

Elnusa’s Director of Operations, Andri Haribowo, stated that the project reflects Elnusa’s transformation into a technology-driven energy
services company that continues to strengthen its role in supporting national energy security.

“Through the utilization of broadband seismic technology and increasingly robust offshore operational capabilities, Elnusa not only delivers
high-quality data to its clients but also contributes to unlocking new oil and gas reserve opportunities needed to sustain Indonesia’s energy
supply. The Kandawulo Project demonstrates how technology and innovation serve as key enablers in supporting national oil and gas
production targets,” said Andri.

The project execution was carried out in collaboration with PT COSL Indo as the provider of seismic vessels and equipment. In this partnership,
Elnusa was responsible for permit management, area preparation, and operational support for data acquisition, thereby delivering an
integrated and efficient solution to the client.

As a national energy services company, Elnusa remains committed to executing every project with the principles of on quality, on time, and on
budget, while upholding the highest standards of Health, Safety, Security, and Environment (HSSE). The successful completion of the Kandawulo
Project will further strengthen Elnusa’s position as a strategic partner to the national energy industry in delivering technology-based exploration
solutions. Through mastery of seismic technology, strengthening national competencies, and excellence in operational execution, Elnusa continues
to support efforts to increase national oil and gas reserves and production as a foundation for Indonesia’s energy security amid increasingly
complex global energy dynamics.

About Elnusa (IDX: ELSA)
Elnusa is a subsidiary of PT Pertamina Hulu Energi (PHE), which is part of the Pertamina Upstream Subholding, operating in the field of integrated energy services to provide total
solutions. Elnusa has a DNA of resilience and innovation for over 56 years in the energy industry, with core competencies in upstream oil and gas services, energy distribution and
logistics services, as well as support services. The upstream oil and gas services line includes Geoscience & Reservoir services (land, transition zone & marine, as well as data processing),
drilling & field maintenance services (drilling & workover), engineering, procurement, construction & operation maintenance (EPC-OM) services. The energy distribution and logistics
services line includes fuel transportation services, depot management, and chemical sales. The support services line includes marine support services, fabrication, and data management.
Elnusa is committed to implementing Corporate Governance in accordance with GCG principles to realize a highly competitive, continuously growing company and provide sustainability
for all stakeholders. For more information, please visit www.elnusa.co.id.