Top 10 Companies in the Styrene Isoprene Styrene (SIS) Industry (2025): Market Leaders Driving Thermoplastic Elastomer Innovation

In Business Insights
October 02, 2025

The Global Styrene Isoprene Styrene (SIS) Market was valued at US$ 1458.1 million in 2022 and is projected to reach US$ 2114.8 million by 2029, growing at a Compound Annual Growth Rate (CAGR) of 5.5% during the forecast period (2022–2029). This growth is being driven by rising demand in adhesives and sealants, expanding applications in packaging and hygiene products, and increasing adoption of high-performance thermoplastic elastomers in automotive and construction sectors across emerging markets.

As the thermoplastic elastomer industry evolves toward versatile, sustainable materials, the spotlight is on the key producers who are driving innovation, performance enhancements, and eco-friendly solutions. In this blog, we profile the Top 10 Companies in the Styrene Isoprene Styrene (SIS) Industry—a mix of global chemical giants, specialized polymer firms, and regional innovators shaping the future of SIS applications.


🔟 1. Kraton Corporation

Headquarters: Houston, Texas, USA
Key Offering: Linear and radial SIS polymers for adhesives, coatings, and compounding

Kraton is the world’s leading producer of styrenic block copolymers, including SIS, holding a dominant 22% share of global production. Their SIS resins are vital for pressure-sensitive adhesives, footwear, and asphalt modification, offering exceptional tack and elasticity for durable applications.

Innovation Initiatives:

  • Development of advanced SIS grades for medical and personal care products

  • Partnerships with adhesive manufacturers to optimize compounding processes

  • Investment in sustainable production methods targeting reduced carbon footprint

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


9️⃣ 2. LCY Chemical Corp.

Headquarters: Taipei, Taiwan
Key Offering: SIS for pressure-sensitive adhesives, sealants, and polymer modification

LCY Chemical is a major force in the Asian SIS market, producing high-performance polymers from its robust manufacturing base. They specialize in linear SIS for superior adhesion in packaging and labeling, serving electronics and automotive sectors effectively.

Innovation Initiatives:

  • Expansion of radial SIS production for enhanced elasticity in compounding

  • Collaborations with regional manufacturers for customized adhesive solutions


8️⃣ 3. TSRC Corporation

Headquarters: Taipei, Taiwan
Key Offering: SIS block copolymers for tapes, hygiene, and asphalt applications

TSRC excels in styrenic block copolymers with a diverse SIS portfolio for high-strength adhesives and elastic materials. Their products feature low hardness and excellent processability, ideal for global markets in printing plates and protective films.

Innovation Initiatives:

  • Research into bio-derived isoprene for greener SIS production

  • R&D programs focused on improving viscosity for solution processing

  • Strategic alliances for market expansion in North America


7️⃣ 4. Versalis S.p.A.

Headquarters: Milan, Italy
Key Offering: SIS polymers for adhesives, footwear, and polymer blends

Versalis, Eni’s chemical arm, leads in European SIS production with high-purity resins for adhesives and compounding. Their balanced formulations deliver optimal strength for tapes and hygiene goods, supporting packaging and construction needs.

Innovation Initiatives:

  • Goal to increase SIS output by 15% through process optimizations by 2025

  • Europe-based R&D center for next-generation styrenic copolymers

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


6️⃣ 5. Sinopec Corporation

Headquarters: Beijing, China
Key Offering: Industrial-grade SIS for adhesives and rubber modification

Sinopec, China’s premier chemical producer, supplies cost-effective SIS to domestic and export markets. Their integrated production supports films, tapes, and hygiene products, leveraging the region’s vast manufacturing ecosystem.

Innovation Initiatives:

  • Advancements in radial SIS for high-performance asphalt modifiers

  • Investments in capacity to support China’s hygiene sector boom


5️⃣ 6. Jusage Petrochemical Nanjing Co., Ltd.

Headquarters: Nanjing, China
Key Offering: SIS for pressure-sensitive adhesives and sealants

Jusage specializes in styrenic block copolymers, providing tailored SIS grades for packaging adhesives with excellent cohesion. Based in China’s industrial core, they ensure high-volume, quality supply for domestic and international trade.

Innovation Initiatives:

  • Development of low-styrene SIS for sensitive applications

  • Expansion plans to double production capacity by 2027


4️⃣ 7. ZEON Corporation

Headquarters: Tokyo, Japan
Key Offering: Specialty SIS for optical films and adhesives

ZEON leads in advanced polymers, crafting SIS with superior clarity for optical films and medical tapes. Their precision synthesis guarantees quality for electronics and healthcare, backed by a strong global network.

Innovation Initiatives:

  • Current output exceeding 50,000 tons annually for SIS variants

  • Target to introduce bio-compatible SIS by 2026


3️⃣ 8. Jinhai Chenguang Chemical Co., Ltd.

Headquarters: Zibo, China
Key Offering: SIS for compounding, adhesives, and footwear

Jinhai Chenguang delivers cost-effective SIS solutions for rubber modification and adhesives in Asia. Their linear and radial types are essential for tapes and hygiene products, supporting China’s industrial expansion.

Innovation Initiatives:

  • Local R&D for synthetic isoprene-based SIS

  • Collaborations to scale production for export


2️⃣ 9. Dynasol Group

Headquarters: Bilbao, Spain
Key Offering: SIS copolymers for asphalt and adhesive applications

Dynasol, a Repsol-Cinesa venture, produces durable SIS for construction and automotive uses. Their resins enhance bitumen compatibility, improving road flexibility, with operations spanning Europe and Latin America.

Innovation Initiatives:

  • Initiatives for recycled content in SIS formulations

  • Supply chain expansions in South America


1️⃣ 10. INEOS Styrolution

Headquarters: London, United Kingdom
Key Offering: SIS for specialty adhesives and polymer blends

INEOS Styrolution, a styrenics powerhouse, provides advanced SIS for high-performance adhesives and films. Their low-viscosity products shine in hygiene and labeling, with integrated processes ensuring purity across regions.

Innovation Initiatives:

  • End-to-end solutions for custom SIS applications

  • Partnerships with end-users for product development

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


🌍 Outlook: The Future of Styrene Isoprene Styrene (SIS) Is Versatile and Sustainable

The Styrene Isoprene Styrene (SIS) market is undergoing steady evolution. While linear SIS dominates, the industry is investing in radial variants, bio-based options, and broader applications in hygiene and packaging, with Asia Pacific accounting for 62% of consumption.

📈 Key Trends Shaping the Market:

  • Rapid capacity growth in Asia, especially China and Taiwan

  • Regulatory emphasis on sustainable polymers and reduced VOC emissions

  • Digital tools for supply chain optimization and demand forecasting

  • Industry collaborations for new SIS applications in electric vehicles and green packaging

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

By type, linear SIS holds the largest share due to its widespread use in adhesives, while radial variants gain traction for specialized needs. The top players not only supply essential SIS materials—they’re pioneering the next wave of thermoplastic advancements across industries.