S-Oil RFCC Unit Maintenance: Supply Impact

S-Oil Corp to take No.1 RFCC unit off stream

Jun 18, 2026

S-Oil Corp is likely to shut down its No.1 residue fluid catalytic cracker (RFCC) unit in Onsan. A source in South Korea informed a team member, “The company is expected to start maintenance at the unit by mid-October 2025. The unit is slated to remain offline until end-November 2025. A statement from an authorized source could not be confirmed.” Located in Onsan, South Korea, the No.1 RFCC unit has a crude processing capacity of 73,000 bbl/day and propylene production capacity of 200,000 mt/year.