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Nationwide service stations (end of 2025)ACROSS KOREA
GS CALTEX BUSINESS — CHAPTER 01
800,000 barrels of crude a day, on its way to energy —
it begins at the Yeosu complex, home to the world’s no.4 single refinery.
Founded in 1967 as Korea's first private refiner, GS Caltex refines crude sourced worldwide into the energy and products our lives and industries need.
01 — CRUDE SOURCING
Sourcing is diversified across the Middle East, the Americas, Southeast Asia, Australia and Europe, securing a stable supply base.
The ability to process crudes of different origins and characteristics lets GS Caltex respond flexibly to market conditions.
02 — DISTILLATION
Heated and fed into the atmospheric distillation column, crude separates by boiling point into LPG, naphtha, kerosene, diesel and residue. Each fraction then serves as feedstock for downstream refining, upgrading and petrochemical processes.
02 — CAPACITY
GS Caltex has a crude refining capacity of 800,000 barrels a day. Highly automated production facilities turn it into a wide range of high-quality petroleum products, including gasoline, kerosene, diesel and jet fuel.
WORLD NO.4 · SINGLE REFINERY03 — UPGRADING
GS Caltex has an upgrading capacity of 275,000 barrels a day. Heavy oil separated in atmospheric distillation is converted through upgrading into higher-value light products such as gasoline, kerosene and diesel.
34.3%UPGRADING RATIO
04 — INTO EVERYDAY LIFE
Products made by GS Caltex are supplied through service stations and LPG charging stations nationwide, as well as to industrial sites, railways and airlines.
Nationwide service stations (end of 2025)ACROSS KOREA
LPG charging stations (end of 2025)ACROSS KOREA
GASOLINEGasoline
Used as the main fuel for passenger vehicles.
DIESELDiesel
Used as fuel across transport and industry, including road vehicles.
KEROSENEKerosene
Used as fuel for heating and industrial applications.
JET FUELJet fuel
Used as the fuel required for aircraft operation.
Feedstock produced in the refining process goes on to become aromatics, olefins, polymers and other petrochemical products. The next chapters follow the business as it extends from refining into petrochemicals.