What this tab covers How it is regulated and what could disrupt supply: hazard classification, rules in the EU, US and India, anti-dumping duties and other trade measures, and supply-risk notes.
Hazards
Classification
UN number
Key risks
not classified as hazardous as a polymer; residual acrylonitrile (carcinogen category 1B) and styrene limited in specifications
not regulated
Fire produces dense smoke and hydrogen cyanide. Brominated flame-retardant grades face restrictions.
Main rules
Where
Rule
Effect
EU
REACH (monomers registered, polymer exempt); RoHS and POPs limits on brominated flame retardants; WEEE Directive
Shapes flame-retardant choice and pushes recycling of electronics plastic
EU
Food-contact Regulation 10/2011
Limits on acrylonitrile migration for kitchenware grades
US
TSCA; UL 94 flammability for electronics; FDA food-contact rules
Grade certification for electronics and food use
Global
Stockholm Convention listing of decaBDE (2017)
Ended a main flame retardant for ABS electronics housings
India
Rule
Effect
BIS quality-control order on ABS (withdrawn 12 Nov 2025)
Eases Chinese and Korean imports (BIS notification via ELP, Nov 2025)
Recycled-content targets mainly for packaging, less for ABS
Trade measures
No major ABS anti-dumping duty found in sources reached; China has applied anti-dumping duties to styrene since 2018 (styrene tile).
Supply risk
Moderate. Capacity is concentrated in China, Korea and Taiwan, but many plants compete. India's risk is styrene: it imports all of it, much of it from the Middle East through Hormuz (styrene tile).