20230824_ELSA_Laporan Informasi dan Fakta Material_31383566_lamp1.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
     Total Solution Elnusa's Seismic Services Actively
            Support National Energy Security

Jakarta, 24 August 2023 - PT Elnusa Tbk (Elnusa), a leading energy services company incorporated in Pertamina's
Upstream Subholding, has been taking part since 1972 in seismic survey activities to support efforts to explore
upstream oil and gas (oil and gas) in Indonesia. Like its vision of becoming a total solution company for energy services,
Elnusa also has Total Solutions in seismic services so that it can contribute to the success of discovering new oil and
gas reserves which will support national energy security in the future.

"Elnusa has integrated capabilities for every job from all stages of seismic, starting from data acquisition, data
processing, to further data analysis. Both onshore and offshore seismic activities, we have a complete package," said
Charles Harianto Lumbantobing, Director of Operations at Elnusa.

As for offshore areas, Elnusa has superior seismic survey technology, namely OBN (Ocean Bottom Nodes). This OBN
technology can collect seismic data wirelessly from under the sea, starting from the Transition Zone area to Shallow
Water. With this OBN capability and technology, Elnusa has worked on the Matindok TZ Project in Central Sulawesi in
2018. Until now there have been 7 seismic survey projects that Elnusa has successfully completed using this OBN
technology.

With these competencies, Elnusa has experience working on more than 500 seismic acquisition projects throughout
Indonesia, from Aceh to West Papua. It has been recorded that since 1986 the length of the 2D seismic survey
trajectory that Elnusa has traversed has reached 36,000 kilometers (km), then for 3D seismic it covers an area of
20,000 square km. As for the offshore area, the length of the 2D seismic track has even reached 60,213 km, and covers
21,193 square km for 3D seismic. Elnusa's seismic survey services have also been used in many countries, from Brunei
Darussalam, Malaysia, Vietnam, Myanmar, India, Sudan, to Algeria.

One of the prestigious projects that Elnusa has worked on is a 2D seismic survey activity in Indonesian open waters
which is a Defined Work Commitment (KKP) from PHE Jambi Merang. Using the Elsa Regent ship and involving as many
as 105 Indonesian personnel in 230 working days in 2019-2020, Elnusa's seismic survey successfully crossed 31,140
km, making it the longest 2D seismic survey activity in Asia Pacific in the last decade.

Elnusa was also involved in ExxonMobil's seismic survey in 2001-2002 which eventually discovered large oil reserves
from the Banyu Urip Field in the Cepu Block. There is also Pertamina EP's Akasia Besar Onshore 3D Project in 2015-
2017, where the Elnusa team had to face the complexities of a seismic and challenging survey trajectory because it
passed through hilly areas, Indramayu urban areas, and sea waters using Gunboats.

Not only focusing on oil and gas seismic survey services, Elnusa also has the capacity to conduct seismic surveys in
other fields. "Apart from oil and gas, our seismic survey services can also be applied to geothermal, mining and PLN
projects. We have also received an offer for a seismic survey to make tunnels for hydropower purposes, this is still a
prospect but we can do it," explained Charles.

For its various efforts in the field of seismic surveys, most recently Elnusa has won appreciation from various parties,
especially clients, such as from Pertamina EP, PHE OSES, PHE WMO, and others. Then there are still Platinum category
awards for the PC Prove Ruling Ocean Elnusa team from the 2022 APQ Awards, to the Silver and Special Award at the
2022 Seoul International Invention Fair (SIIF).