Top 10 Companies in the Styrene Isoprene Styrene (SIS) Industry (2026): Market Leaders Driving Global Polymer Innovation

In Business Insights
January 30, 2026

The Global Styrene Isoprene Styrene (SIS) Market was valued at USD 1.58 Billion in 2024 and is projected to reach USD 2.34 Billion by 2032, growing at a Compound Annual Growth Rate (CAGR) of 6.2% during the forecast period (2025–2032). This robust growth is primarily fueled by the escalating demand for pressure-sensitive adhesives, extensive use in asphalt modification for infrastructure development, and the rising adoption of high-performance thermoplastic elastomers across diverse industrial sectors.

As industries worldwide prioritize material performance, versatility, and sustainability, the SIS market is witnessing significant transformation. In this detailed analysis, we profile the Top 10 Companies in the Styrene Isoprene Styrene (SIS) Industry—a strategic mix of global chemical giants, regional leaders, and innovative specialists shaping the future of polymer applications from packaging to healthcare.


🔟 1. Kraton Corporation

Headquarters: Houston, Texas, USA
Key Offering: SIS Polymers, SIS-based Adhesives, Custom Formulations

Kraton Corporation stands as a global leader in the production of styrenic block copolymers, including a comprehensive portfolio of SIS products. The company is renowned for its innovative solutions in adhesives, sealants, and coatings, serving a wide array of industries. Kraton’s commitment to research and development ensures its products meet evolving market demands for performance and sustainability.

Innovation and Sustainability Initiatives:

  • Development of bio-based and circular feedstock alternatives for polymer production

  • Strategic expansion of production capacity in Asia-Pacific to cater to growing demand

  • Focus on creating high-performance SIS grades with enhanced thermal stability and adhesion properties

Download FREE Sample Report: Styrene Isoprene Styrene (SIS) Market – View in Detailed Research Report


9️⃣ 2. TSRC Corporation

Headquarters: Taipei, Taiwan
Key Offering: SIS Elastomers, Specialty Rubbers, Chemical Intermediates

TSRC is a major global supplier of synthetic rubber, including high-quality SIS polymers. With a strong foothold in the Asia-Pacific region, the company leverages its integrated production capabilities from raw materials to finished products. TSRC’s SIS grades are critical components in high-performance adhesives and polymer modification applications.

Innovation and Sustainability Initiatives:

  • Investment in R&D for next-generation SIS with improved environmental footprint

  • Expansion initiatives to strengthen supply chain resilience and market presence


8️⃣ 3. Sinopec

Headquarters: Beijing, China
Key Offering: SIS Copolymers, Base Chemicals, Refined Fuels

As one of China’s largest integrated energy and chemical companies, Sinopec holds a significant position in the global SIS market. Its massive production scale and vertical integration provide a competitive edge in cost and supply stability. Sinopec’s SIS products are extensively used in domestic construction and packaging industries.

Innovation and Sustainability Initiatives:

  • Focus on advancing production technologies for higher purity and performance SIS grades

  • Aligning with national sustainability goals through energy efficiency improvements in manufacturing


7️⃣ 4. LCY Chemical Corp.

Headquarters: Taipei, Taiwan
Key Offering: SIS, SBS, SEBS, and other Performance Elastomers

LCY Chemical is a leading global producer of thermoplastic elastomers, with a strong portfolio of SIS products. The company operates advanced manufacturing facilities and maintains a robust global distribution network. LCY’s technical expertise allows it to cater to specific customer requirements in adhesive and polymer modification sectors.

Innovation and Sustainability Initiatives:

  • Continuous process optimization to reduce environmental impact and enhance product quality

  • Development of specialized SIS grades for emerging applications in medical and hygiene products

Download FREE Sample Report: Styrene Isoprene Styrene (SIS) Market – View in Detailed Research Report


6️⃣ 5. Zeon Corporation

Headquarters: Tokyo, Japan
Key Offering: SIS Polymers, Specialty Elastomers, High-Performance Plastics

Zeon Corporation is a Japanese chemical giant renowned for its high-quality specialty elastomers, including advanced SIS products. The company’s focus on technological innovation has positioned it as a key supplier for demanding applications in electronics, automotive, and healthcare sectors, where precision and reliability are paramount.

Innovation and Sustainability Initiatives:

  • Pioneering research in high-purity SIS for sensitive applications like medical devices

  • Commitment to sustainable manufacturing practices and reducing carbon emissions


5️⃣ 6. Versalis (Eni)

Headquarters: San Donato Milanese, Italy
Key Offering: SIS Elastomers, Base Chemicals, Renewable Polymers

Versalis, the chemical subsidiary of energy major Eni, is a significant player in the European SIS market. The company combines traditional chemical expertise with a growing focus on sustainable solutions. Versalis’s strategic location in Europe provides it with access to key markets and advanced research ecosystems.

Innovation and Sustainability Initiatives:

  • Development of bio-based feedstocks for elastomer production

  • Investment in circular economy projects for polymer sustainability


4️⃣ 7. Ningbo Jinhai Chenguang Chemical Co., Ltd.

Headquarters: Ningbo, Zhejiang, China
Key Offering: SIS, SBS, Rubber Additives

Ningbo Jinhai Chenguang is a prominent Chinese manufacturer specializing in synthetic rubber and related chemicals. The company has established a strong reputation in the domestic market for its reliable SIS products used extensively in adhesives and asphalt modification. Its competitive pricing makes it a key supplier for cost-sensitive applications.

Innovation and Sustainability Initiatives:

  • Capacity expansion to meet growing domestic and international demand

  • Focus on improving product quality and consistency through technological upgrades


3️⃣ 8. Kuraray Co., Ltd.

Headquarters: Tokyo, Japan
Key Offering: SIS, SEBS, Poval, Methacrylic Resins

Kuraray is a diversified chemical company with a strong presence in the functional polymers segment, including SIS. The company’s technical expertise and global reach enable it to serve sophisticated markets with high-performance material solutions. Kuraray’s SIS products are valued for their consistency and performance in specialized applications.

Innovation and Sustainability Initiatives:

  • Development of advanced polymer alloys and compounds incorporating SIS

  • Strategic focus on sustainable materials and green chemistry initiatives


2️⃣ 9. JSR Corporation

Headquarters: Tokyo, Japan
Key Offering: SIS Elastomers, Synthetic Rubbers, Electronic Materials

JSR Corporation is a global material science company with expertise in elastomers, plastics, and electronic materials. Its SIS products benefit from the company’s strong R&D capabilities and quality-focused manufacturing processes. JSR serves demanding applications where material performance and reliability are critical.

Innovation and Sustainability Initiatives:

  • Integration of digital technologies for product development and customer support

  • Commitment to reducing environmental impact across the product lifecycle


1️⃣ 10. LG Chem

Headquarters: Seoul, South Korea
Key Offering: SIS Polymers, Petrochemicals, Advanced Materials

LG Chem, one of South Korea’s largest chemical companies, produces a wide range of petrochemicals and advanced materials, including SIS elastomers. The company’s strong technological base and global manufacturing footprint position it as a key supplier in the Asian market and beyond. LG Chem’s SIS products are used in various industrial and consumer applications.

Innovation and Sustainability Initiatives:

  • Significant investments in sustainable and bio-based material development

  • Expansion of high-value specialty chemical portfolio including performance elastomers

Get Full Report Here: Styrene Isoprene Styrene (SIS) Market – View in Detailed Research Report


🌍 Outlook: The Future of SIS is Innovation-Driven and Sustainable

The Styrene Isoprene Styrene market is undergoing a significant evolution. While traditional applications in adhesives and construction continue to dominate, the industry is increasingly focused on sustainable alternatives, advanced material formulations, and expansion into high-growth emerging markets.

📈 Key Trends Shaping the Market:

  • Rising demand for bio-based and recyclable SIS variants in environmentally conscious markets

  • Technological advancements leading to SIS grades with enhanced thermal stability and processing characteristics

  • Expansion of application scope into medical, electronics, and high-performance automotive sectors

  • Strategic partnerships and capacity expansions in Asia-Pacific to capitalize on regional growth

Get Full Report Here: Styrene Isoprene Styrene (SIS) Market – View in Detailed Research Report

The companies profiled above are not only supplying essential materials for global industries—they’re driving the innovation and sustainability transformation of the polymer sector.