20230825_ELSA_Laporan Informasi dan Fakta Material_31384050_lamp2.pdf

Contact Person:
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 Successfully Completes a Seismic Survey in
               the Southwest Papua Sea

Jakarta, 25 August 2023 - PT Elnusa Tbk (Elnusa) through the Upstream Services Division has successfully completed
the work of a Sea Seismic Survey in the waters of Sorong Regency, Southwest Papua. The seismic survey this time is
called the South Walio Offshore 3D Seismic Survey in the Work Area operated by KKKS Petrogas (Island) Ltd. The
seismic survey itself is one of Elnusa's mainstay competencies as an exploration stage for oil and gas sources based on
measuring the response of waves directed into the ground to then find out the subsoil data and get the most potential
oil and gas points.

In this seismic survey, Elnusa used a seismic wave receiver for the Ocean Bottom Nodes (OBN) type, which are all
Elnusa's assets. The Kick-Off Meeting which took place on 6 July 2023 in Makassar, South Sulawesi, marked the start
of this seismic survey work and in just 48 days all survey operations were completed on 22 August 2023.

With the completion of this seismic survey, Elnusa managed to record more than 300,000 safe working hours. This is
proof of the commitment of all Elnusa employees in properly implementing the HSSE aspects. "We thank God Almighty
for all His protection to all of our workers while working until finally the seismic survey work was completed 100%.
We hope that all of our hard work can make a positive contribution to the discovery of National Oil and Gas reserves,"
said Fahzul MH Siregar as Project Head from Elnusa.

As previously stated by Elnusa's Director of Operations, Charles Harianto Lumbantobing, “Elnusa has integrated
capabilities for every job from all seismic stages, from data acquisition, data processing, to further data analysis. Both
onshore and offshore seismic activities. Elnusa carries out the entire survey process on the basis of Operation
Excellence through the application of Health, Safety, Security and Environment (HSSE) standards according to
applicable standards,"

Charles added "I really appreciate the performance of all Elnusa Officers who were involved in this South Walio
Offshore 3D seismic survey project. Next, there are several prospects for sea seismic survey work in other parts of
Indonesia that will be carried out by Elnusa in the remainder of 2023 and towards 2024.“ Closed Charles.



About Elnusa (IDX: ELSA)
Elnusa is a subsidiary of PT Pertamina Hulu Energi (PHE) incorporated in Subholding Upstream Pertamina. As a total energy services solution
company, Elnusa has core competencies in upstream oil and gas services, supporting services, and energy distribution and logistics services. The
upstream oil and gas service line includes Geoscience & Reservoir services (land, transition zone & marine, and data processing), oil and gas field
drilling & maintenance services (drilling & workover), engineering, procurement, construction & operation maintenance (EPC-OM) services.
Supporting service lines include marine support services, fabrication, to data management. The energy distribution and logistics service line includes
fuel transportation services, depot management, and chemical sales. Currently, Elnusa serves national and international oil and gas companies,
including Pertamina Group, British Petroleum, Conoco Phillips, Soco Exploration (Vietnam) Ltd, etc. Elnusa is listed on the Indonesia Stock Exchange
with the issuer code 'ELSA' and has five subsidiaries that support its competence. Detail information can be accessed at www.elnusa.co.id.