The Global Styrene Ethylene Propylene Styrene Block Copolymer Market was valued at US$ 97 Million in 2025 and is projected to reach US$ 147 Million by 2034, growing at a Compound Annual Growth Rate (CAGR) of 5.8% during the forecast period (2025–2034). This significant growth is driven by increasing demand for high-performance thermoplastic elastomers across the automotive, medical, and consumer goods sectors, coupled with the accelerating adoption of sustainable and bio-based SEPS materials to address environmental concerns.

As industries worldwide pivot towards materials that offer superior flexibility, durability, and environmental compatibility, the focus sharpens on the key manufacturers pioneering SEPS innovation and production. In this blog, we profile the Top 10 Companies in the Styrene Ethylene Propylene Styrene Block Copolymer Industry—a group of chemical industry leaders and specialized polymer producers shaping the future of advanced elastomers.

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🔟 1. Kraton Corporation

Headquarters: Houston, Texas, USA
Key Offering: SEPS polymers, Customized TPE formulations

Kraton Corporation is a global leader in the production of specialty polymers and high-value performance products derived from renewable resources. The company’s SEPS products are renowned for their excellent elasticity, thermal stability, and UV resistance, making them ideal for demanding applications.

Innovation and Sustainability Initiatives:

• Development of bio-based and circular polymer solutions

• Focus on SEPS grades with enhanced heat resistance and adhesion properties

• Commitment to sustainable sourcing and reducing environmental footprint

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Styrene Ethylene Propylene Styrene Block Copolymer Market – View in Detailed Research Report

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9️⃣ 2. Kuraray Co., Ltd.

Headquarters: Tokyo, Japan
Key Offering: SEPTON™ SEPS polymers, Hydrogenated styrenic block copolymers

Kuraray is a major international chemical company with a strong focus on specialty chemicals, fibers, and resins. Its SEPTON™ brand of SEPS is highly regarded in the market for superior performance in automotive components, medical devices, and consumer products.

Innovation and Sustainability Initiatives:

• Continuous R&D for high-purity SEPS grades for medical applications

• Expansion of production capacity to meet growing global demand

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8️⃣ 3. LCY GROUP

Headquarters: Taipei, Taiwan
Key Offering: SEBS/SEPS polymers, Thermoplastic elastomers

LCY GROUP is a leading global chemical company with a comprehensive product portfolio that includes a wide range of elastomers. The company has established a significant presence in the SEPS market, catering to diverse industrial needs across Asia and beyond.

Innovation and Sustainability Initiatives:

• Investment in advanced polymerization technologies

• Development of eco-friendly TPE solutions

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7️⃣ 4. Sinopec

Headquarters: Beijing, China
Key Offering: Petrochemicals, Synthetic rubbers, SEPS compounds

China Petroleum & Chemical Corporation (Sinopec) is one of the largest integrated energy and chemical companies in the world. Its extensive research and production capabilities position it as a key player in the Asian SEPS market, supporting regional manufacturing growth.

Innovation and Sustainability Initiatives:

• Domestic production of specialty elastomers to reduce import reliance

• Focus on technological innovation in polymer science

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6️⃣ 5. Ningbo Changhong Polymer Scientific Technology Co., Ltd.

Headquarters: Ningbo, Zhejiang, China
Key Offering: SEPS, SBS, SIS, and other block copolymers

Ningbo Changhong is a specialized manufacturer of styrenic block copolymers, with a growing reputation for quality and reliability. The company serves both domestic Chinese and international markets with a diverse range of polymer products.

Innovation and Sustainability Initiatives:

• Expansion of production lines for high-performance SEPS grades

• Focus on customized solutions for specific customer applications

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5️⃣ 6. Zhejiang Zhongli Elastic Body Polymer Co., Ltd.

Headquarters: Zhejiang, China
Key Offering: TPE-S (SEBS/SEPS), TPE-V, TPE-O compounds

Zhejiang Zhongli specializes in the research, development, and production of thermoplastic elastomers. The company has carved a niche in the SEPS market by offering tailored solutions for wire and cable, automotive, and consumer goods industries.

Innovation and Sustainability Initiatives:

• Development of halogen-free flame retardant SEPS compounds

• Investment in R&D for improved material properties and processing

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4️⃣ 7. TSRC Corporation

Headquarters: Taipei, Taiwan
Key Offering: Synthetic rubbers, SEBS/SEPS, Specialty polymers

TSRC is a leading synthetic rubber manufacturer with a global footprint. The company’s expertise in hydrogenated block copolymers makes it a significant contributor to the SEPS supply chain, particularly for applications requiring high durability and weatherability.

Innovation and Sustainability Initiatives:

• Strategic focus on high-value specialty elastomers

• Commitment to environmental protection and sustainable operations

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3️⃣ 8. En Chuan Chemical Industries Co., Ltd.

Headquarters: Taipei, Taiwan
Key Offering: SBS, SEBS, SEPS polymers

En Chuan Chemical is a established manufacturer of styrenic block copolymers with decades of experience. The company produces a range of SEPS products that find applications in adhesives, footwear, and polymer modification.

Innovation and Sustainability Initiatives:

• Continuous improvement of product quality and consistency

• Expansion into new application markets for SEPS

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2️⃣ 9. JSR Corporation

Headquarters: Tokyo, Japan
Key Offering: Elastomers, Synthetic rubbers, SEPS compounds

JSR Corporation is a global materials science company with a strong presence in elastomers and plastics. While known for its synthetic rubber expertise, JSR also supplies specialized SEPS grades for high-performance applications in various industries.

Innovation and Sustainability Initiatives:

• R&D in next-generation elastomer technologies

• Development of sustainable material solutions

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1️⃣ 10. Dynasol Elastómeros, S.A. de C.V.

Headquarters: Altamira, Mexico
Key Offering: SBS, SEBS, SEPS, and other synthetic rubbers

Dynasol is a joint venture between Repsol and KUO, specializing in the production of synthetic rubbers and thermoplastic elastomers. The company serves global markets with a diverse portfolio that includes SEPS products for various industrial applications.

Innovation and Sustainability Initiatives:

• Focus on developing sustainable elastomer solutions

• Expansion of production capabilities in strategic global locations

Get Full Report Here:
Styrene Ethylene Propylene Styrene Block Copolymer Market – View in Detailed Research Report

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🌍 Outlook: The Future of SEPS Is Smarter and More Sustainable

The Styrene Ethylene Propylene Styrene Block Copolymer market is undergoing a significant transformation. While traditional applications continue to drive volume, the industry is increasingly focused on high-performance alternatives, advanced material technologies, and sustainable production methods.

📈 Key Trends Shaping the Market:

• Rapid expansion of SEPS applications in medical devices and packaging

• Growing demand for bio-based and recyclable SEPS materials

• Customization of SEPS formulations for specific industry requirements

• Increased adoption in electric vehicle components for wire insulation and soft-touch parts

Get Full Report Here:
Styrene Ethylene Propylene Styrene Block Copolymer Market – View in Detailed Research Report

The companies listed above are not only supplying critical materials to global industries—they’re driving the innovation and sustainability agenda for advanced polymers.

Download FREE Sample Report:
Styrene Ethylene Propylene Styrene Block Copolymer Market – View in Detailed Research Report