The Global Caustic Soda Flakes Market was valued at USD 43.21 Billion in 2025 and is projected to reach USD 58.79 Billion by 2034, growing at a Compound Annual Growth Rate (CAGR) of 3.8% during the forecast period (2024–2030). This robust growth is fueled by expanding demand from key end-use industries like pulp & paper, alumina refining, textiles, and soaps & detergents, coupled with increasing industrialization activities in emerging economies across Asia-Pacific and the Middle East.

As a fundamental building block for numerous industrial processes, caustic soda flake production and distribution are critical to global supply chains. In this analysis, we profile the Top 10 Companies in the Caustic Soda Flakes Industry—a group of chemical giants and regional leaders that are driving capacity expansions, technological innovation, and sustainable production practices.

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🔟 1. Olin Corporation

Headquarters: Clayton, Missouri, USA
Key Offering: High-purity Caustic Soda Flakes, Liquid Caustic Soda

Olin Corporation is one of the world’s largest producers of caustic soda, with a significant production capacity in North America and a growing global footprint. The company operates integrated chlor-alkali facilities that produce caustic soda as a co-product alongside chlorine.

Operational Strengths:

• Vertically integrated manufacturing with captive power generation

• Strategic partnerships with key downstream industries

• Focus on operational efficiency and cost leadership

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9️⃣ 2. Westlake Corporation

Headquarters: Houston, Texas, USA
Key Offering: Caustic Soda Flakes, Beads, and Liquid solutions

Westlake is a global manufacturer and supplier of essential chemicals, including a substantial portfolio of chlor-alkali products. The company’s caustic soda flakes are widely used in diverse industrial applications across multiple continents.

Operational Strengths:

• Diversified customer base across multiple end-use industries

• Strong distribution network throughout North America and Europe

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8️⃣ 3. Formosa Plastics Corporation

Headquarters: Taipei, Taiwan
Key Offering: Caustic Soda Flakes, PVC, and other Chlor-alkali derivatives

Formosa Plastics Corporation is a major Asian producer with extensive chlor-alkali capacity. The company’s integrated petrochemical complex supports substantial caustic soda production for both domestic Taiwanese demand and export markets.

Operational Strengths:

• Large-scale, integrated manufacturing complexes

• Strong market position across Asia-Pacific regions

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7️⃣ 4. Tosoh Corporation

Headquarters: Tokyo, Japan
Key Offering: High-grade Caustic Soda Flakes, Specialty Chemicals

Tosoh is Japan’s leading caustic soda producer, known for high-quality products that meet stringent industry specifications. The company serves various sectors including chemicals, electronics, and water treatment.

Operational Strengths:

• Focus on high-purity and specialty grade products

• Advanced manufacturing technologies and quality control

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6️⃣ 5. Hanwha Solutions Chemical Division

Headquarters: Seoul, South Korea
Key Offering: Caustic Soda Flakes, PVC, EDC/VCM

Hanwha Solutions operates one of South Korea’s largest chlor-alkali production facilities. The company has established itself as a key supplier in Asian markets with consistent quality and reliable delivery capabilities.

Operational Strengths:

• Modern production facilities with advanced environmental controls

• Strategic location for export to growing Southeast Asian markets

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5️⃣ 6. INEOS Group

Headquarters: London, United Kingdom
Key Offering: Caustic Soda Flakes, Chlorine, Vinyls

INEOS is a global chemical leader with significant chlor-alkali operations across Europe. The company’s chemical division produces caustic soda flakes that serve various industrial applications throughout the region.

Operational Strengths:

• Extensive European production and distribution network

• Focus on sustainable production practices and circular economy

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4️⃣ 7. Befar Group

Headquarters: Binzhou, Shandong, China
Key Offering: Caustic Soda Flakes, Propylene Oxide, Chlorinated Polyethylene

Befar Group is one of China’s prominent chlor-alkali producers with substantial manufacturing capacity. The company has expanded significantly to meet growing domestic demand while maintaining competitive export operations.

Operational Strengths:

• Large-scale production capacity to serve massive domestic market

• Cost-competitive manufacturing with integrated facilities

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3️⃣ 8. Aditya Birla Chemicals (Grasim Industries)

Headquarters: Mumbai, Maharashtra, India
Key Offering: Caustic Soda Flakes, Liquid Caustic Soda, Chlorine

Aditya Birla Chemicals, part of Grasim Industries, is India’s leading caustic soda producer with multiple manufacturing units across the country. The company plays a vital role in supplying India’s growing industrial sector.

Operational Strengths:

• Extensive distribution network throughout India

• Strong relationships with key industrial customers

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2️⃣ 9. Shin-Etsu Chemical

Headquarters: Tokyo, Japan
Key Offering: High-purity Caustic Soda Flakes, PVC, Silicon Wafers

Shin-Etsu is the world’s largest PVC manufacturer and a significant producer of caustic soda. The company’s chemical division maintains high standards for product quality and environmental performance.

Operational Strengths:

• Technological leadership in chlor-alkali processes

• Diversified product portfolio reducing market cyclicality

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1️⃣ 10. Xinjiang Zhongtai Chemical Co., Ltd.

Headquarters: Urumqi, Xinjiang, China
Key Offering: Caustic Soda Flakes, PVC, Industrial Salt

Xinjiang Zhongtai is a major Chinese chemical producer with integrated chlor-alkali operations. The company benefits from proximity to raw material sources and serves both domestic and international markets.

Operational Strengths:

• Access to low-cost energy and raw materials

• Strategic position for serving Central Asian markets

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🏭 Outlook: The Future of Caustic Soda Flakes Is Driven by Sustainability and Innovation

The caustic soda flakes market is evolving with increasing focus on energy-efficient production, environmental compliance, and strategic capacity expansions in growth regions. While traditional applications continue to drive demand, emerging uses in biodiesel production and water treatment present new growth opportunities.

📈 Key Trends Shaping the Market:

• Capacity expansions in Asia-Pacific and Middle Eastern regions

• Shift toward membrane cell technology for cleaner production

• Increasing demand from alumina refining and pulp & paper industries

• Growing emphasis on sustainable production and carbon footprint reduction

The companies profiled above are not only supplying essential industrial chemicals—they’re driving the technological advancement and sustainable practices that will define the future of the global chemical industry.

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Global Caustic Soda Flakes Market – View in Detailed Research Report