YNCC Styrene Monomer Unit Shutdown

Yeochun NCC mulls maintenance at SM unit

Jun 17, 2026

Yeochun NCC (YNCC) is likely to shut down its Styrene monomer (SM) unit. A source in South Korea informed a team member, “The company is expected to take the unit off stream around October 17, 2025 for a maintenance turnaround. Further details on the duration of the shutdown could not be ascertained.” Located in Yeosu, South Korea, the unit has a production capacity of 365,000 mt/year.