S-Oil RFCC Plant Maintenance: Supply Alert

S-Oil Corp to undertake planned maintenance at No.1 RFCC unit

Jun 12, 2026

S-Oil Corp is likely to halt production at 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.” 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.