What circular styrenic products has Denka begun supplying, and what certification do they hold?

Denka has begun full commercial supply of circular polystyrene and plans to launch additional circular styrenic products, including functional resins such as styrene-butadiene (SB) copolymer, styrene-acrylonitrile (SAN), methyl methacrylate-butadiene-styrene (MB), and styrene-methyl methacrylate (SMMA) copolymer. All these products are ISCC Plus-certified as circular using mass-balance accounting.

Where are Denka’s ISCC Plus-certified circular styrenic production facilities located, and what is the capacity and technology basis of its first chemical recycling plant?

Denka’s Chiba, Japan plant — built in March 2024 with technology licensed from Agilyx at a cost of about ¥4 billion ($25 million) — is ISCC Plus certified to produce circular styrene monomer, circular polystyrene, circular MB, circular SAN, and circular SB copolymers, with a capacity to convert 3,000 metric tons/year of polystyrene. Denka’s Singapore plant is certified for circular polystyrene production, and Toyo Styrene’s Kimitsu plant is certified for circular polystyrene, SMMA copolymer, and polystyrene compounds.

Denka begins supplying circular polystyrene, other styrenics to follow

Aug 28, 2026

Denka Co. Ltd. has commenced full commercial supply of ISCC Plus-certified circular polystyrene via its Chiba recycling plant, with plans to expand its circular styrenic portfolio to include functional resins like SB copolymers.

chemweek

2026-08-28

Denka begins supplying circular polystyrene, other styrenics to follow

Denka begins supplying circular polystyrene, other styrenics to follow

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