
RUC/ODC
Leading competitiveness for sustainable growth
S-OIL successfully completed state-of-the-art S-OIL New Complex (RUC & ODC) project, which is the largest in the history of domestic oil and petrochemicals industry, with an investment of 5 trillion won, and started commercial operations in November 2018.
S-OIL New Complex consists of the Residue Upgrading Complex (RUC) and the Olefin Downstream Complex (ODC).
Residue Upgrading Complex (RUC)
Residue Upgrading Complex reprocesses residues from the crude oil refining process and converts them into high-value-added products such as gasoline and propylene.
By upgrading residue streams that would otherwise have lower value, RUC strengthens S-OIL's refining competitiveness and supports long-term sustainable growth.

Olefin Downstream Complex (ODC)
Olefin Downstream Complex produces propylene oxide (PO) and polypropylene (PP) by injecting propylene produced from Residue Upgrading Complex. Propylene oxide is a raw material for polyurethane for automotive interior materials, electronic products, and insulation materials. Polypropylene is a type of plastic and is used for various purposes including automobile bumpers.
S-OIL has expanded its business operations based on Olefin Downstream Complex, and has the ability to produce high-value-added high-tech materials that can be applied to automobiles, home appliances, information technology (IT) and biotechnology (BT).

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