20260526_ELSA_Laporan Informasi dan Fakta Material_32095065_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
Strengthening National Energy Security, Elnusa Supports Pertamina EP Zone 4 in
         Increasing Production Through Workover Activities at 51 Wells
Jakarta, 25 May 2026 – Amidst global geopolitical dynamics, PT Elnusa Tbk (ELSA), part of Pertamina's Upstream Subholding, continues to
demonstrate its capacity as an integrated energy service provider to strengthen national energy security. One way to do this is by supporting
PT Pertamina EP (PEP) Zone 4's efforts to increase oil production at 51 existing wells through workover activities.

Workover activities, or well workovers, are commonly carried out on existing oil and gas wells to repair, restore, or even enhance oil and gas
production performance. During the workover of 51 wells in the Pertamina EP Zone 4 Working Area in South Sumatra, spanning the Prabumulih
Field, Limau Field, Pendopo Field, Adera Field, and Ramba Field, Elnusa's Wireline Services (WLS) team provided wireline logging and
perforation services.

Elnusa's Director of Operations, Andri Haribowo, explained, "The scope of work involves wireline logging to evaluate reservoir conditions and
more accurately identify hydrocarbon potential within the well. Furthermore, Elnusa also evaluates the integrity of the casing and cement in
the well through cement evaluation logging to ensure optimal well conditions for production. For the perforation service, we open the production
layer by drilling holes in the casing so that hydrocarbons from the reservoir can flow and be produced to the surface," Andri explained.

To support the company's performance and enhance the effectiveness of workover activities, Andri revealed that Elnusa's Wireline Logging
Services division now possesses the latest technology, the Saturation Logging Tool (RPM by Elnusa), which can more accurately identify
hydrocarbon positions in reservoirs. This technology has been used in the Pertamina EP Zone 7 working areas in West Java and Pertamina EP
Zone 11 in East Java.

Thanks to this technology, Elnusa is now able to offer more effective, efficient, and economical services for workover activities. "With our
proprietary technology, Elnusa can provide more economical and competitive solutions for our customers. This also supports efforts to optimally
increase production in Pertamina EP Zone 4," he explained.

As a result of the workover activities, which were also supported by Elnusa, Pertamina EP Zone 4 successfully increased oil and gas production
from aging wells that had declined, or even restored production from suspended and idle wells. Andri also added that operational challenges
in the South Sumatra region, with its diverse well characteristics, require accurate and adaptive data interpretation skills.

"Elnusa plays a role in obtaining information and data from old, idle, and suspended wells that still contain oil potential. We then interpret
this data accurately and thoroughly to help increase production in the Pertamina EP Zone 4 working area," explained Andri. The workover
and well intervention program in Zone 4 throughout 2025 recorded an increase in oil production of 432 barrels per day (BOPD).

Andri emphasized that Elnusa's competence, supported by the latest technology in workover activities, can support the government's target of
achieving a production of 1 million barrels of oil per day, thereby achieving national energy security. "We hope to continue contributing by
providing the best services with the latest, most effective, and economical technology, in supporting efforts to increase oil and gas production
from wells in various regions of Indonesia," Andri concluded.

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.