Cos Mar Styrene Maintenance: India Supply Alert

Cos Mar to shut styrene plant for maintenance

Jun 15, 2026

Cos Mar, is likely to undertake a planned shutdown at its styrene unit in Carville, Louisiana. A source in the US informed a team member, “The company is expected to halt operations at the unit by mid February 2026 for a maintenance turnaround. Further details on the duration of the shutdown could not be ascertained. Located in Carville, Louisiana, US, the styrene unit has a production capacity of 435,000 mt/year.
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