Company Name

SK ecoengineering

CEO

Hyung-Won Lee

Date of Establishment

February 1, 2022 (based on spin-off date)

Business Areas

Industrial Business, Hydrogen & Green Business, Gas & Power Business

Number of Employees

614 (as of December 31, 2025)

Head Office Address

6th–13th Floor, Building B, Twin Tree Tower, 6 Yulgok-ro, Jongno-gu, Seoul, Republic of Korea

Website

www.skecoengineering.com/eng/

Industrial (Semiconductors)

SK ecoengineering is supporting SK hynix’s expansion into the North American market,
leveraging its extensive experience in semiconductor projects. As construction of a
semiconductor FAB in Indiana gets underway, the company is providing integrated
EPC services covering the entire process from initial design through construction. By
combining SK ecoplant’s semiconductor execution capabilities with its own on-site
operational experience in North America, SK ecoengineering is strengthening its global
competitiveness in the semiconductor EPC field.

[Key Achievements]

Full-scale lauch of SK hynix’s semiconductor FAB construction project in Indiana, USA

Industrial (Battery Materials)

The company has expanded its business scope across the entire battery industry,
leveraging its experience in constructing production facilities for battery cells and key materials. Beyond Korea, SK ecoengineering has successfully built copper foil, lithium-ion battery separator (LiBS), and battery cell production facilities in North America and Europe, thereby establishing a track record of executing EPC projects across the entire
battery value chain—from materials to cells.

[Key Achievements]

Expanding global battery project execution capabilities based on experience
constructing battery production facilities in North America and Europe

Industrial (Pharmaceuticals
& Biotechnology)

Leveraging its global capabilities in pharmaceutical and biotech plant construction, SK ecoengineering is contributing to the advancement of cutting-edge pharmaceutical
production infrastructure by building facilities for the production of vaccines and
blood products. Notably, the company successfully constructed SK plasma’s plasma
fractionation plant in Indonesia, contributing to the establishment of the country’s largest
blood product production infrastructure. Furthermore, drawing on its experience in
constructing the Andong Pharmaceutical plant—which received EU-GMP certification from the European Medicines Agency—SK ecoengineering successfully completed its expansion for the production of pneumococcal vaccines. Through the construction of numerous domestic and international pharmaceutical and biotech plants, the company
is proving its capabilities as a specialized EPC company in the pharmaceutical and biotech sectors.

[Key Achievements]

Completion of a plasma fractionation plant in Indonesia and expansion of the
pneumococcal vaccine production facility in Andong, Gyeongsangbuk-do

Hydrogen
& Eco-Friendly

SK ecoengineering is strengthening its design capabilities in the hydrogen and eco-
friendly energy sectors in response to the global energy transition. The company is
contributing to the establishment of a hydrogen energy ecosystem, focusing on hydrogen
production and liquefaction processes, and is continuously expanding its portfolio of
related projects. In addition, it is conducting conceptual and basic FEED design work for
Sustainable Aviation Fuel (SAF) production processes in North America, accumulating design expertise across a wide range of SAF production technologies—from bio-based
HEFA (Hydro-processed Esters and Fatty Acids) processes to PtL (Power-to-Liquid)
processes utilizing CO₂.

[Key Achievements]

Conducted Front-End Engineering Design (FEED) for a North American Sustainable
Aviation Fuel (SAF) production project

Gas & Power

SK ecoengineering provides services optimized for customers across the entire power plant business, leveraging its top-tier technical personnel and accumulated EPC
capabilities. In particular, drawing on extensive experience in large-scale power
generation EPC projects, the company provides eco-friendly energy solutions in various
fields, including combined-cycle power plants, cogeneration plants, distributed engine power plants, and LNG terminals. Furthermore, SK ecoengineering is carrying out the EPC for the Yongin Semiconductor Cluster District Energy Project, led by SK E&S,
establishing infrastructure to supply stable and efficient heat sources to semiconductor industrial complexes.

[Key Achievements]

EPC for the Yongin Semiconductor Cluster District Energy Project