Business Overview
Refinery production
GS Caltex imports 80 types of crude oil from some 30 countries spread across the Middle East, US, Southeast Asia, Australia and Europe. Diversified sourcing ensures a stable supply. We produce high-quality petroleum products using our refining capacity of 800,000 barrels per day (bpd) and cutting-edge production systems that include facilities to desulfurize kerosene and diesel.
Additionally, heavy oil upgrading(HOU) facility, the largest in the nation, has a capacity of 275,000 bpd and produces light oil products and high-grade gasoline. It has brought GS Caltex a step closer to realizing a ‘perfect complex.’
Link to Production Process 
Supplying Korea’s oil needs and exporting petroleum products
Our petroleum products provide a stable supply to satisfy home demands for industrial and transportation purposes across Korea. They are shipped to about 2,200 service stations, 340 filling stations, various factories, and railway and airline operators. (AS of the end of 2023)
GS Caltex is also a major exporter. We process crude oil imports into petroleum products which are exported around the world.
Products
Marine Fuel Oil
Wide range of fuel products for ship engines
GS Caltex produces marine fuel oil that has high calorific value to maximize marine propulsion. The marine fuel oil is produced taking into consideration viscosity grades required by ship engines of various dimensions. It satisfies the ISO 8217 standard and reduces sulfur and other pollutants according to GS Caltex’s stringent internal standards.
MFO of various viscosity grades
GS Caltex provides marine fuel oil (MFO) of various viscosity grades.
MDO / MF-30 / MF-40 / MF-60 / MF-80 / MF-100 / MF-120 / MF-150 / MF-180 / MF-240 / MF-280 / MF-320 / MF-380 / MF-420 / MF-460
*The numbers at the end in the MFO rating refers to the maximum allowed Centistoke (cSt) at 50℃. MFO is produced in accordance with the ISO 8217 standard.
Material Safety Data Sheet(MSDS)
| MFO380 IBKMarine Fuel Oil 380 IBK | KORENG |
|---|---|
| MFO460Marine Fuel Oil 460 | KORENG |
| MFO420Marine Fuel Oil 420 | KORENG |
| MFO380Marine Fuel Oil 380 | KORENG |
| MFO320Marine Fuel Oil 320 | KORENG |
| MFO280Marine Fuel Oil 280 | KORENG |
| MFO240Marine Fuel Oil 240 | KORENG |
| MFO180Marine Fuel Oil 180 | KORENG |
| MFO150Marine Fuel Oil 150 | KORENG |
| MFO120Marine Fuel Oil 120 | KORENG |
| MFO100Marine Fuel Oil 100 | KORENG |
| MFO80Marine Fuel Oil 80 | KORENG |
| MFO60Marine Fuel Oil 60 | KORENG |
| MFO40Marine Fuel Oil 40 | KORENG |
| MFO30Marine Fuel Oil 30 | KORENG |
| MGOMarine Gas Oil | KORENG |
| MDOMarine Diesel Oil | KORENG |