Controversies
Controversies tied to this brand in public sources. A listing is not a finding of fault.
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2025
Facility suspension following extraordinary loss
Denka temporarily suspended operations at Pontchartrain Works in May 2025 after reporting an extraordinary loss in company earnings. The suspension followed years of environmental scrutiny and regulatory pressure at the site.
2023
Clean Air Act lawsuit over Louisiana facility
The U.S. Department of Justice sued Denka, alleging that emissions from Pontchartrain Works violated the Clean Air Act and endangered public health. The case made the facility the central environmental controversy associated with the Denka brand.
2017
Chloroprene emissions at Pontchartrain Works
Denka voluntarily committed to reducing chloroprene emissions from its Louisiana facility after monitoring near the plant reported concentrations above the applicable reference level. The issue generated sustained concern among nearby communities and environmental advocates.