Bentonite - Market Share Analysis, Industry Trends & Statistics, Growth Forecasts (2026-2031)

The bentonite market was valued at USD 2.29 billion in 2025 and is estimated to grow from USD 2.41 billion in 2026 to reach USD 3.10 billion by 2031, at a CAGR of 5.16% during the forecast period (2026-2031). This report is Segmented by Product (Sodium Bentonite, Calcium Bentonite, and More), Application (Drilling Muds, Foundry Sands, Iron Ore Pelletizing, and More), End-Use Industry (Construction, Oil and Gas, Agriculture, Pharmaceuticals, Water Treatment, Others), and Geography (Asia-Pacific, North America, Europe, South America, and Middle-East and Africa). The Market Forecasts are Provided in Terms of Value (USD).

Global Bentonite Market Trends and Insights

Growing Demand for Sodium Bentonite in Oil and Gas Drilling Fluid Applications

Sodium bentonite forms a low-permeability filter cake on borehole walls and helps water-based drilling fluids control fluid loss. These functions make substitution with synthetic products costly or technically limited in many standard well designs. Upstream investment in offshore and unconventional resources supports continued procurement by drilling fluid service providers. Baker Hughes rig-count data through mid-2025 showed stable activity in the Permian Basin and Gulf of Mexico, supporting demand for drilling inputs in those operating areas. Deepwater wells require premium grades that can perform under high temperature and salinity conditions, which only a limited group of Wyoming and Turkish deposits can supply consistently. This difference between commodity and premium material supports a wider separation in pricing and strengthens the position of suppliers with high-swelling sodium deposits.

Expansion of Iron Ore Pellet Production Supporting Demand for Bentonite Binders

Iron ore pellet production requires sodium bentonite to provide green strength and thermal stability during pellet handling and firing. Each metric ton of pellets used in blast furnace steelmaking requires 5-8 kilograms of binder, linking steel capacity additions to bentonite purchasing volumes. India’s Ministry of Steel has targeted 300 million metric tons of steel production by 2030, supporting the outlook for additional pelletizing capacity. Ashapura Minechem commissioned 2 bentonite mines in Kutch during FY2026, with 300,000 metric tons of annual capacity intended for pelletizing and other industrial uses. Conventional blast furnace pelletizing is expected to remain a substantial source of demand through 2031. Polymer binders are gaining technical acceptance in lower-carbon steel routes because they can reduce silica impurities, although the supplied evidence indicates limited displacement of bentonite in conventional pelletizing during the forecast period.

Variability in Bentonite Ore Quality Affecting Processing Efficiency and Product Performance

Differences in smectite content, iron phases, and montmorillonite purity can change swelling index, cation exchange capacity, and viscosity yield. These properties determine whether the material can meet the needs of industrial customers. Quality assurance must begin at the mine and continue through processing because small mineralogical changes can affect engineered barrier and geotechnical uses. Acid activation, sodium carbonate addition, and blending raise raw-material costs for calcium bentonite by 30-50%. Activated grades also sell at a 20-40% discount to natural sodium bentonite because performance gaps can remain. This issue favors producers with large uniform deposits and internal quality systems, while limiting smaller suppliers’ ability to secure long-term contracts for drilling, foundry, and liner applications.

Other drivers and restraints analyzed in the detailed report include:

• Increasing Use of Bentonite in Civil Engineering and Water Containment Applications
• Growing Demand for High-Purity Bentonite in Cosmetics, Pharmaceuticals, and Personal Care Products
• High Transportation and Bulk Logistics Costs Impacting Market Competitiveness

Segment Analysis

Sodium bentonite held 57.30% of the bentonite market share in 2025, supported by use in drilling fluids, geosynthetic clay liners, foundry green sand, and premium cat litter. Its ability to swell to 15-20 times its dry volume remains important in applications that require strong sealing or fluid-control performance. Calcium bentonite is the fastest-growing product category, with a forecast CAGR of 6.12% from 2026 to 2031. This growth is tied to edible oil refining in Asian markets, where it serves as bleaching earth, and to animal-feed applications for mycotoxin adsorption. Calcium deposits are more available than sodium deposits in several relevant markets, which supports their role in local supply chains.

Clariant’s TERRANA feed additive range uses selected calcium bentonite for animal-feed detoxification applications and is produced under industrial food-safety standards. This type of processing shifts calcium material from lower-specification applications into products with more defined performance requirements. Sulfur bentonite is used as a slow-release sulfur fertilizer and soil amendment in North and South American crop production. Organo-bentonite and modified grades are used in paints, coatings, and polymer systems.

Complete Report Scope:

• By Product
  • Sodium Bentonite
  • Calcium Bentonite
  • Sulphur Bentonite
  • Other Product Types
• By Application
  • Drilling Muds
  • Foundry Sands
  • Iron Ore Pelletizing
  • Cat Litter
  • Civil Engineering
  • Absorbents and Adsorbents
  • Binder
  • Refining
  • Sealants
  • Other Applications
• By End-Use Industry
  • Construction
  • Oil and Gas
  • Agriculture
  • Foundry and Metallurgy
  • Pharmaceuticals
  • Cosmetics and Personal Care
  • Food and Beverage
  • Paper and Pulp
  • Water and Wastewater Treatment
  • Other End-Use Industries
• By Geography
  • Asia-Pacific
    • China
    • India
    • Japan
    • South Korea
    • Rest of Asia-Pacific
  • North America
    • United States
    • Canada
    • Mexico
  • Europe
    • Germany
    • United Kingdom
    • France
    • Italy
    • Russia
    • Rest of Europe
  • South America
    • Brazil
    • Argentina
    • Rest of South America
  • Middle-East and Africa
    • Saudi Arabia
    • South Africa
    • Rest of Middle-East and Africa

Geography Analysis

Asia-Pacific held 38.72% of revenue in 2025 and is forecast to expand at a 5.82% CAGR through 2031, giving it the leading share of the bentonite market. China’s steel sector drives regional pelletizing demand, while construction and environmental remediation add further uses. India follows in regional demand because of its expanding steel sector, pipeline investment, and pharmaceutical-grade consumption linked to generic drug manufacturing. Ashapura Minechem’s Q3 FY2026 bentonite segment revenue reached INR 2.31 billion (approximately USD 25.4 million), and 2 commissioned Kutch mines are expected to strengthen its supply position. Japan and South Korea remain premium demand centers for high-specification drilling and foundry grades.

Southeast Asian markets, including Indonesia and Vietnam, add civil-engineering demand as infrastructure programs expand. In North America, the majority of bentonite comes from Wyoming sodium deposits that are recognized for their high swelling performance. U.S. demand in the bentonite market from shale drilling, foundry activity, and cat litter supported pricing through most of 2025. North American sodium bentonite Free on Board (FOB) prices ranged from USD 185-290 per metric ton in 2025, with premium drilling and specialty grades at the upper end of that range. The Bureau of Land Management approved the Black Hills Bentonite Mine in Natrona County, Wyoming, in early 2026, which supports additional domestic supply capacity.

Europe relies on domestic deposits, including calcium bentonite from Greece and activated grades from Turkey, alongside U.S. and Indian imports. European consumption is increasingly tied to environmental sealing and pharmaceutical and cosmetic grades, while energy and beneficiation costs supported firmer pricing in 2025. South America is led by Brazil, where major iron ore pelletizing operations provide structurally important binder demand. Argentina adds demand through soil conditioning and animal-feed mycotoxin adsorption. The Middle-East and Africa form a smaller demand base, supported by drilling in Saudi Arabia and construction in Gulf Cooperation Council states. South Africa hosts Imerys’ Cape Bentonite operations and acts as a regional supply point. Infrastructure gaps and logistics complexity limit near-term realization of the longer-term potential in both regions.

List of Companies Covered in this Report:

• Ashapura Group
• Bentonite Performance Minerals LLC.
• Black Hills Bentonite, LLC
• Canbensan A.Ş.
• CETCO
• Chang'an Renheng Technology Holdings Limited
• Cimbar Performance Minerals
• Clariant AG
• Imerys
• Kunimine Industries Co. Ltd
• LKAB Minerals
• Minerals Technologies Inc.
• Shandong Huawei Bentonite Co.,Ltd.
• Wyo-Ben, Inc.

Additional Benefits:

• The market estimate (ME) sheet in Excel format
• 3 months of analyst support