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Asahi Kasei acquires ISCC PLUS certification for several additional products

Asahi Kasei and an affiliated company have acquired the widely recognized international sustainability certification ISCC PLUS for several products in the fields of thermoplastic elastomers and rubbers, engineering plastics, and other materials.

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Asahi Kasei’s Mizushima Works (Photo: Business Wire)

Asahi Kasei’s Mizushima Works (Photo: Business Wire)

The Asahi Kasei Group aims to contribute to a carbon-neutral material value chain by focusing on initiatives such as the use of biomass raw materials, recycled raw materials, and renewable energy while deepening collaboration with other companies based on its medium-term management plan for fiscal 2024 focused on the theme "Be a Trailblazer."

The ISCC PLUS1 certification ensures that biomass, recycled materials, etc., are appropriately managed in the whole supply chain including manufacturing. With the acquisition of this certification, Asahi Kasei will be able to provide ISCC PLUS certified grades of below products.

Company name


Trade name

Asahi Kasei

Thermoplastic elastomer (TPE)

Tufprene™ and Asaprene™ T styrenic thermoplastic elastomer,

Tuftec™ hydrogenated styrenic thermoplastic elastomer,

S.O.E.™ hydrogenated styrenic thermoplastic elastomer

Styrene-butadiene rubber (SBR)

Asaprene™ solution-polymerized SBR

Butadiene rubber (BR)

Asaprene™ polybutadiene rubber

Polyethylene (PE)

Sunfine™ ultra high molecular weight polyethylene,

Suntec™ LD low-density polyethylene,

Suntec™ EVA ethylene-vinyl acetate copolymer,

Suntec™ HD and Creolex™ high-density polyethylene

Polyvinylidene chloride (PVDC)

Saran Wrap™ cling film

Polyphenylene ether (PPE)

Xyron™ polyphenylene ether

Polyamide (PA) compounds

Leona™ polyamide resin

Styrene monomer

Cyclohexanol and Cyclohexane

Japan Elastomer Co., Ltd.

Butadiene rubber (BR), styrene-butadiene rubber (SBR), crude C4, thermoplastic elastomer (TPE)

This achievement follows the company's commendable certification of a diverse range of below materials in 2022, solidifying its commitment to responsible material sourcing.

Company name


Trade name

Asahi Kasei

Acrylonitrile (AN)

Methyl methacrylate (MMA)

Polymethyl methacrylate (PMMA)

Delpet™ and Delpowder™

Styrene-butadiene rubber (SBR)

Tufdene™ solution-polymerized SBR

Butadiene rubber (BR)

Diene™ and Asadene™ polybutadiene rubber


Tenac™ polyacetal

PP/PE compounds

Asaclean™ molding machine purging compound

Asahi Kasei Mitsubishi Chemical Ethylene Corp.

Ethylene, propylene, etc.


Okayama Butadiene Co., Ltd.


1 ISCC (International Sustainability and Carbon Certification) is an international certification system that offers solutions for the implementation and certification of waste and residue raw materials, non-bio renewables and recycled carbon materials and fuels. ISCC PLUS is a certification system that covers mainly bio-based carbon materials which are produced outside of the EU and supplied globally, and to manage and ensure sustainable raw materials in the supply chain.

About Asahi Kasei

The Asahi Kasei Group contributes to life and living for people around the world. Since its founding in 1922 with ammonia and cellulose fiber businesses, Asahi Kasei has consistently grown through the proactive transformation of its business portfolio to meet the evolving needs of every age. With more than 48,000 employees worldwide, the company contributes to a sustainable society by providing solutions to the world's challenges through its three business sectors of Material, Homes, and Health Care. Its Material sector, comprised of Environmental Solutions, Mobility & Industrial, and Life Innovation, includes a wide array of products from battery separators and biodegradable textiles to engineering plastics and sound solutions. For more information, visit

Asahi Kasei is also dedicated to sustainability initiatives and is contributing to reaching a carbon-neutral society by 2050. To learn more, visit


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