Yukong Limited is one of the largest oil and petrochemical companies in South Korea. The FCC expansion allowed Yukong's Ulsan refinery to operate in excess of 800,000 barrels per day of crude, making the refinery one of the world's largest at the time. It also provided increased output of gasoline and other value-added products for both the domestic transportation fuels market and export.
The FCC project involved the construction of many new process units including: a 60,000 barrels-per-stream-day (BPSD) resid desulfurization unit, 50,000 BPSD resid FCC unit, hydrogen plant, alkylation unit, sulfur unit, methyl tert-butyl ether unit, polypropylene recovery unit, spent acid regeneration unit, 30-megawatt power plant and a full slate of offsites, utilities and auxiliary facilities.