Market Definition and Introduction
The global hygroscopic building materials market was valued at USD 927.8 million in 2024, and is expected to surge to USD 1,854.41 million by 2035, at a CAGR of 6.5% during the forecast period from 2025 to 2035. In this age of energy conservation, environmental control, and human comfort being a central design priority, hygroscopic materials are slowly beginning to alter conventional approaches of sustainable construction. These materials absorb and release moisture based on atmospheric changes, thereby achieving passive control of indoor humidity. As green architecture and climate-resilient infrastructure strategies become increasingly celebrated on a global scale, hygroscopic materials are being actively integrated into wall systems, ceilings, insulation panels, and façade elements to ensure superior thermal comfort alongside improved indoor air quality.
Architects and engineers are taking advantage of these materials' peculiarities like that as silica, natural salts, and porous ceramics, to develop climate-responsive building envelopes. The increased demand for energy-efficient and net-zero buildings has given rise to innovations in moisture-regulating structural compositions, especially in places with variable climate conditions. These materials not only mitigate the energy loads on HVAC systems but also contribute to the sustainability of buildings by reducing mould growth and moisture deterioration, thereby strengthening their resilience.
Both the public and private stakeholders in building activities are moving toward environmentally friendly and cost-effective building solutions while adopting hygroscopic materials. This major adoption is further buttressed by occupant health and wellness considerations that were accentuated during COVID-19. With urban housing density reaching all-time highs and occupants spending more time indoors, humidity-buffering materials are beginning to be perceived from a standpoint beyond just that of passive insulation. The combination of smart design with hygroscopic performance sets a new paradigm for future-ready buildings.
Recent Developments in the Industry
In February 2024, BASF SE introduced a proprietary range of silica-based composite materials that actively regulate indoor humidity and temperature without requiring electrical energy input. These materials are specifically engineered for high-performance façade systems in residential and commercial buildings, enhancing sustainability benchmarks and reducing operational carbon footprints.
In October 2023, Saint-Gobain partnered with Swedish architecture firm CUBEFORM to integrate hygroscopic plasterboards and wall panels into modular housing projects across Scandinavia. The collaboration aims to deliver homes that naturally manage humidity and minimise artificial climate control, positioning passive building strategies at the forefront of sustainable living.
In July 2023, Wacker Chemie AG introduced hybrid formulations that blend hygroscopic mineral matrices with advanced flame-retardant properties, addressing two critical safety criteria in modern construction. These solutions are gaining traction across the hospitality and commercial real estate sectors in Asia-Pacific and Europe.
Market Dynamics
Construction that understands how it is driven toward sustainability is going to fast-track the use of these hygroscopic materials.
For example, countries that have been pushing for a carbon-neutral and energy-efficient world are now considering the use of hygroscopic building materials in the next generation of buildings. Because governments enforce these greener building codes and now users are looking for better climates indoors, the increased need for moisture-regulating materials has been evident. Passively, indoors, hygroscopic materials control the climate by relative humidity levels, resulting in not much air conditioning energy consumption, which is good for both commercial and residential buildings.
Technological Advancements and Material Innovations- Transform Real Market Potentials
Breakthrough technologies in nanomaterials, porous composites, and biomimetic architectures are changing the scenario of performance based on hygroscopicity. Hybrid formulations that permit highly advanced combined physical and chemical adsorption mechanisms are being developed by researchers and can produce better controls for the diffusion and storage of water vapour. An additional change to "smart" building components with the capability of performing adaptive behaviour emerges from the incorporation of sensors and data analytics into these materials.
Big Initial Investment and Low Knowledge on their Benefit Constraint Adoption
Hygroscopic materials can generally be energy efficient in the long term. Still, they come with high upfront costs and little-known markets, especially in developing countries. Integration into the existing construction process poses yet another technical barrier. Wide acceptance is yet to be achieved, as many architects, engineers, and developers still need education on their performance advantages.
Urbanisation/big opportunity demand for smart buildings
Unprecedented operational growth in urbanisation across the Asia-Pacific has been coupled with the fact that smart buildings are becoming increasingly more common. Such smart cities would consider materials that can autonomously create internally regulated environments for their occupants. Hygroscopic composites would most probably drive the internal environment benefits of smart cities while ensuring cost-benefit overall green.
Circular Economy and Green Certification Incentivise Market Trends
The circular construction and sustainability certification benchmarks set by LEED, BREEAM, and WELL have created new parameters for material selection. They now demand that products from renewable sources and which can be recycled or reused, are given prominence. These certifications influence procurement procedures, forcing manufacturers to innovate toward eco-compliant, lifecycle-optimised materials.
Attractive Opportunities in the Market
• Sustainable Building Surge – Global green construction mandates drive adoption of passive moisture-regulating materials.
• Modular Housing Trends – Prefabricated architecture integrates lightweight, hygroscopic wall and ceiling panels.
• Health-First Infrastructure – Moisture control supports mould prevention and improves indoor air quality.
• Smart HVAC Synergy – Combined use with ventilation systems reduces energy consumption in smart buildings.
• Climate-Resilient Design – Materials adapted to varying humidity environments aid in regional customisation.
• Innovative Mineral Blends – R&D in nano-silicates and zeolites paves the way for high-performance composites.
• Urban Living Optimisation – Condensation management in high-density housing ensures structural integrity.
• Zero-Energy Buildings – Passive humidity control supports energy-neutral architectural frameworks.
Report Segmentation
By Type: Inorganic Salts, Inorganic Minerals, Natural Materials, Silica/Silicon Dioxide, Molecular Sieve
By Adsorption Process: Physical, Chemical
By End Use: Residential, Industrial, Commercial
By Region: North America (U.S., Canada, Mexico), Europe (UK, Germany, France, Spain, Italy, Spain, Rest of Europe), Asia-Pacific (China, India, Japan, Australia, South Korea, Rest of Asia-Pacific), LAMEA (Brazil, Argentina, UAE, Saudi Arabia (KSA), Africa Rest of Latin America)
Key Market Players: BASF SE, Knauf Gips KG, Saint-Gobain, Wacker Chemie AG, Mitsubishi Chemical Group, Zeochem AG, Imerys, Poraver North America, Lhoist Group, American Elements.
Report Aspects
• Base Year: 2024
• Historic Years: 2022, 2023, 2024
• Forecast Period: 2025-2035
• Report Pages: 293
Dominating Segments
Silica, silicon dioxide, is expected to regulate the markets due to its qualities and extraordinary performance in adsorption and structural stability.
These materials perform much better in terms of moisture adsorption, mechanical stability, and integration into modern building composites and have taken the top place in the international market. In high-humidity environments, these materials were very important: they formed insulation systems that worked reliably under varying climatic conditions. The capability to considerably reduce indoor humidity means they are a very important material in commercial and residential applications alike. Furthermore, these innovations, coupled with future advancements in nanostructured silica gels, which are expected to enhance surface area and uniform pore size, would indeed help the causation of improving water vapour capture efficiency.
Inorganic Minerals Segment Gains Traction Through Thermal and Hygroscopic Synergy
The inorganic minerals of calcium chloride and magnesium oxide are rapidly gaining momentum with their synergistic capabilities of combined thermal buffering and moisture management. Their dual functionality equips them for specific industrial applications where humidity and temperature consistently need to be controlled. Durable and non-toxic substitutes to synthetic alternatives, these materials align with the industry's sustainable objectives. Market players invest in new formulations, resulting in a concoction of minerals with the polymers to give structural strength while maintaining their efficiency on adsorption. Construction markets are moving toward low-maintenance, high-performance solutions, and that is where inorganic minerals are beginning to find their niche in the landscape of the world.
Natural Materials Segment Rises with Eco-Friendly Construction Trends
Clay, wood fibres, bio-based composites, and so on, natural materials-they are getting really popular again with the rise of sustainability. Their inherent hygroscopic properties will enable passive indoor climate regulation, making them ideal materials for eco-homes and green-certified buildings. Renewable, low-carbon materials are being promoted by both governments and consumers, which is also put into place in favour of naturally hygroscopic resources. Also, in combination with other sustainable materials, they can be recycled, which represents a significant convenience in the circular construction economy. Further research on the mechanical reinforcement of natural materials is helping to narrow the performance gap between traditional and industrial-grade alternatives.
Key Takeaways
• Mineral-Based Innovation – Inorganic materials such as zeolite and silica dominate the passive moisture-control segment.
• Health & Wellness Focus – Hygroscopic walls support occupant health by regulating dampness and mould.
• Construction Efficiency – Prefabricated systems integrate lightweight, humidity-buffering building modules.
• Silica Boom – Silica’s hygroscopic efficiency powers demand in high-precision humidity environments.
• Indoor Air Quality Driver – Hygroscopic materials support WHO and WELL Building standards.
• Asia-Pacific Expansion – Regional industrialisation and green building policies boost adoption.
• Digital Integration – Smart building systems synergise with passive humidity buffering solutions.
• Structural Durability – Moisture regulation improves material longevity and reduces maintenance.
• Green Certifications Push – LEED and BREEAM incentives accelerate use of moisture-buffering products.
• Multi-Climatic Utility – Adaptability of hygroscopic materials enables use across diverse geographies.
Regional Insights
North America Tramps Along with Regulatory Innovation and Green Construction Policies
North America accounts for the major part of the global hygroscopic building material market, that had strong environmental laws working for it, with a very developed construction ecosystem. The U.S has been in the forefront of promoting the use of moisture-regulating materials in energy-conscious residential and commercial buildings. Federal laws in support of net-zero building codes encouraged developers to choose eco-optimising materials that enhance thermal and moisture performance. In addition, leading players in the industry are investing heavily in R&D centres in the U.S. and Canada, specialising in smart materials development conforming to LEED and WELL certification requirements.
Europe Emerges as the Innovation Centre for Eco-Compliant Materials
Europe's progressive stance toward sustainable construction has done much to promote the use of hygroscopic materials. Germany, the Netherlands, and Sweden have become forerunners in applying circular construction concepts with renewable materials and passive humidity regulation systems. The EU's Green Deal and the revised EPBD directive embrace ambitious sustainability goals that are bound to spur material innovation. European manufacturers are progressively incorporating recovered minerals and bio-based resources into advanced composites while guaranteeing high environmental performance and remaining unperturbed about service life and design flexibility.
Urbanism and Industrial Development-Asia-Pacific Raging Growth
Asia-Pacific is the world's fastest-growing regional market for hygroscopic building materials, fueled by immense infrastructure investment and unprecedented population growth. China, India, and South Korea are spearheading the moisture-regulating materials technologies in both residential and industrial buildings. Green building programs piloted by the government and urban smart city programs have only added fuel to the fire in demand for materials considered to be affordable yet high-performing. The upsurge in production capacity of local manufacturers, backed by R&D funding for developing material blends suitable for tropical and sub-tropical climatic conditions, is also in contention.
LAMEA Region Gaining Through Sustainable Infrastructure Projects
New climate-resilient and energy-efficient infrastructure projects are driving market growth in Latin America, the Middle East, and Africa. Both Brazil and the UAE have begun to see an upturn in the adoption of moisture-regulating materials in sustainable housing and industrial zones. Increasing temperatures and humidity in the regions have triggered the need for hygroscopic materials to ensure indoor comfort and durability. Heightening construction activities, along with foreign investment influx in green technology, are making the region a promising land for the application of eco-materials.
Core Strategic Questions Answered in This Report
Q. What is the expected growth trajectory of the hygroscopic building material market from 2024 to 2035?
The global hygroscopic building material market is projected to grow from USD 927.8 million in 2024 to USD 1,854.41 million by 2035, reflecting a CAGR of 6.5% over the forecast period (2025–2035). Growth is underpinned by expanding demand for energy-efficient buildings, regulatory compliance with green codes, and innovations in passive indoor climate control.
Q. Which key factors are fuelling the growth of the hygroscopic building material market?
• Rising adoption of green construction practices and certifications
• Growth in modular and prefabricated construction
• Increasing awareness of indoor health and comfort
• Technological innovation in mineral and silica-based composites
• Government subsidies and regulations supporting energy efficiency
• Expansion of smart and net-zero buildings
Q. What are the primary challenges hindering the growth of the hygroscopic building material market?
• High initial costs and complex integration requirements
• Lack of standardisation in performance metrics
• Limited awareness in developing markets
• Technical limitations for structural load-bearing applications
• Competition from traditional insulation and moisture-control methods
Q. Which regions currently lead the hygroscopic building material market in terms of market share?
North America leads due to strong regulatory support and high consumer awareness. Europe follows with rapid adoption in retrofitting projects. Asia-Pacific is emerging as the fastest-growing region with rising green construction momentum.
Q. What emerging opportunities are anticipated in the hygroscopic building material market?
• Expansion of silica-based wall systems
• Hybrid solutions combining fire safety and moisture buffering
• AI-assisted moisture control systems
• Integration with IoT-enabled building automation
• Regional customisation for diverse climatic zones
Key Benefits for Stakeholders
• The report offers a quantitative assessment of market segments, emerging trends, projections, and market dynamics for the period 2024 to 2035.
• The report presents comprehensive market research, including insights into key growth drivers, challenges, and potential opportunities.
• Porter's Five Forces analysis evaluates the influence of buyers and suppliers, helping stakeholders make strategic, profit-driven decisions and strengthen their supplier-buyer relationships.
• A detailed examination of market segmentation helps identify existing and emerging opportunities.
• Key countries within each region are analysed based on their revenue contributions to the overall market.
• The positioning of market players enables effective benchmarking and provides clarity on their current standing within the industry.
• The report covers regional and global market trends, major players, key segments, application areas, and strategies for market expansion.

Chapter 1. Market Snapshot

1.1. Market Definition & Report Overview
1.2. Market Segmentation
1.3. Key Takeaways
1.3.1. Top Investment Pockets
1.3.2. Top Winning Strategies
1.3.3. Market Indicators Analysis
1.3.4. Top Impacting Factors
1.4. Industry Ecosystem Analysis
1.4.1. 360’ Analysis

Chapter 2. Executive Summary

2.1. CEO/CXO Standpoint
2.2. Strategic Insights
2.3. ESG Analysis
2.4 Market Attractiveness Analysis (top leader’s point of view on market)
2.5.key Findings

Chapter 3. Research Methodology

3.1 Research Objective
3.2 Supply Side Analysis
3.1.1. Primary Research
3.1.2. Secondary Research
3.3 Demand Side Analysis
3.1.3. Primary Research
3.1.4. Secondary Research
3.2. Forecasting Models
3.2.1. Assumptions
3.2.2. Forecasts Parameters
3.3. Competitive breakdown
3.3.1. Market Positioning
3.3.2. Competitive Strength
3.4. Scope of the Study
3.4.1. Research Assumption
3.4.2. Inclusion & Exclusion
3.4.3. Limitations

Chapter 4. Industry Landscape

4.1. Market Dynamics
4.1.1. Drivers
4.1.2. Restraints
4.1.3. Opportunities
4.2. Porter’s 5 Forces Model
4.2.1. Bargaining Power of Buyer
4.2.2. Bargaining Power of Supplier
4.2.3. Threat of New Entrants
4.2.4. Threat of Substitutes
4.2.5. Competitive Rivalry
4.3. Value Chain Analysis
4.4. PESTEL Analysis
4.5. Pricing Analysis and Trends
4.6. Key growth factors and trends analysis
4.7. Market Share Analysis (2025)
4.8. Top Winning Strategies (2025)
4.9. Trade Data Analysis (Import Export)
4.10. Regulatory Guidelines
4.11. Historical Data Analysis
4.12. Analyst Recommendation & Conclusion

Chapter 5. Global Hygroscopic Building Material Market Size & Forecasts by Type 2025-2035

5.1. Market Overview
5.1.1. Market Size and Forecast By Type 2025-2035
5.2. Inorganic Minerals
5.2.1. Market definition, current market trends, growth factors, and opportunities
5.2.2. Market size analysis, by region, 2025-2035
5.2.3. Market share analysis, by country, 2025-2035
5.3. Inorganic Salts
5.3.1. Market definition, current market trends, growth factors, and opportunities
5.3.2. Market size analysis, by region, 2025-2035
5.3.3. Market share analysis, by country, 2025-2035
5.4. Natural Materials
5.4.1. Market definition, current market trends, growth factors, and opportunities
5.4.2. Market size analysis, by region, 2025-2035
5.4.3. Market share analysis, by country, 2025-2035
5.5. Molecular Sieve
5.5.1. Market definition, current market trends, growth factors, and opportunities
5.5.2. Market size analysis, by region, 2025-2035
5.5.3. Market share analysis, by country, 2025-2035
5.6. Silica/Silicon Dioxide
5.6.1. Market definition, current market trends, growth factors, and opportunities
5.6.2. Market size analysis, by region, 2025-2035
5.6.3. Market share analysis, by country, 2025-2035

Chapter 6. Global Hygroscopic Building Material Market Size & Forecasts by Adsorption Process 2025–2035

6.1. Market Overview
6.1.1. Market Size and Forecast By Adsorption Process 2025-2035
6.2. Physical
6.2.1. Market definition, current market trends, growth factors, and opportunities
6.2.2. Market size analysis, by region, 2025-2035
6.2.3. Market share analysis, by country, 2025-2035
6.3. Chemical
6.3.1. Market definition, current market trends, growth factors, and opportunities
6.3.2. Market size analysis, by region, 2025-2035
6.3.3. Market share analysis, by country, 2025-2035

Chapter 7. Global Hygroscopic Building Material Market Size & Forecasts by End-use 2025–2035

7.1. Market Overview
7.1.1. Market Size and Forecast By End-use 2025-2035
7.2. Residential
7.2.1. Market definition, current market trends, growth factors, and opportunities
7.2.2. Market size analysis, by region, 2025-2035
7.2.3. Market share analysis, by country, 2025-2035
7.3. Industrial
7.3.1. Market definition, current market trends, growth factors, and opportunities
7.3.2. Market size analysis, by region, 2025-2035
7.3.3. Market share analysis, by country, 2025-2035
7.4. Commercial
7.4.1. Market definition, current market trends, growth factors, and opportunities
7.4.2. Market size analysis, by region, 2025-2035
7.4.3. Market share analysis, by country, 2025-2035

Chapter 8. Global Hygroscopic Building Material Market Size & Forecasts by Region 2025–2035

8.1. Regional Overview 2025-2035
8.2. Top Leading and Emerging Nations
8.3. North America Hygroscopic Building Material Market
8.3.1. U.S. Hygroscopic Building Material Market
8.3.1.1. Type breakdown size & forecasts, 2025-2035
8.3.1.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.3.1.3. End-use breakdown size & forecasts, 2025-2035
8.3.2. Canada Hygroscopic Building Material Market
8.3.2.1. Type breakdown size & forecasts, 2025-2035
8.3.2.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.3.2.3. End-use breakdown size & forecasts, 2025-2035
8.3.3. Mexico Hygroscopic Building Material Market
8.3.3.1. Type breakdown size & forecasts, 2025-2035
8.3.3.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.3.3.3. End-use breakdown size & forecasts, 2025-2035
8.4. Europe Hygroscopic Building Material Market
8.4.1. UK Hygroscopic Building Material Market
8.4.1.1. Type breakdown size & forecasts, 2025-2035
8.4.1.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.4.1.3. End-use breakdown size & forecasts, 2025-2035
8.4.2. Germany Hygroscopic Building Material Market
8.4.2.1. Type breakdown size & forecasts, 2025-2035
8.4.2.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.4.2.3. End-use breakdown size & forecasts, 2025-2035
8.4.3. France Hygroscopic Building Material Market
8.4.3.1. Type breakdown size & forecasts, 2025-2035
8.4.3.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.4.3.3. End-use breakdown size & forecasts, 2025-2035
8.4.4. Spain Hygroscopic Building Material Market
8.4.4.1. Type breakdown size & forecasts, 2025-2035
8.4.4.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.4.4.3. End-use breakdown size & forecasts, 2025-2035
8.4.5. Italy Hygroscopic Building Material Market
8.4.5.1. Type breakdown size & forecasts, 2025-2035
8.4.5.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.4.5.3. End-use breakdown size & forecasts, 2025-2035
8.4.6. Rest of Europe Hygroscopic Building Material Market
8.4.6.1. Type breakdown size & forecasts, 2025-2035
8.4.6.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.4.6.3. End-use breakdown size & forecasts, 2025-2035
8.5. Asia Pacific Hygroscopic Building Material Market
8.5.1. China Hygroscopic Building Material Market
8.5.1.1. Type breakdown size & forecasts, 2025-2035
8.5.1.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.5.1.3. End-use breakdown size & forecasts, 2025-2035
8.5.2. India Hygroscopic Building Material Market
8.5.2.1. Type breakdown size & forecasts, 2025-2035
8.5.2.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.5.2.3. End-use breakdown size & forecasts, 2025-2035
8.5.3. Japan Hygroscopic Building Material Market
8.5.3.1. Type breakdown size & forecasts, 2025-2035
8.5.3.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.5.3.3. End-use breakdown size & forecasts, 2025-2035
8.5.4. Australia Hygroscopic Building Material Market
8.5.4.1. Type breakdown size & forecasts, 2025-2035
8.5.4.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.5.4.3. End-use breakdown size & forecasts, 2025-2035
8.5.5. South Korea Hygroscopic Building Material Market
8.5.5.1. Type breakdown size & forecasts, 2025-2035
8.5.5.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.5.5.3. End-use breakdown size & forecasts, 2025-2035
8.5.6. Rest of APAC Hygroscopic Building Material Market
8.5.6.1. Type breakdown size & forecasts, 2025-2035
8.5.6.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.5.6.3. End-use breakdown size & forecasts, 2025-2035
8.6. LAMEA Hygroscopic Building Material Market
8.6.1. Brazil Hygroscopic Building Material Market
8.6.1.1. Type breakdown size & forecasts, 2025-2035
8.6.1.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.6.1.3. End-use breakdown size & forecasts, 2025-2035
8.6.2. Argentina Hygroscopic Building Material Market
8.6.2.1. Type breakdown size & forecasts, 2025-2035
8.6.2.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.6.2.3. End-use breakdown size & forecasts, 2025-2035
8.6.3. UAE Hygroscopic Building Material Market
8.6.3.1. Type breakdown size & forecasts, 2025-2035
8.6.3.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.6.3.3. End-use breakdown size & forecasts, 2025-2035
8.6.4. Saudi Arabia (KSA Hygroscopic Building Material Market
8.6.4.1. Type breakdown size & forecasts, 2025-2035
8.6.4.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.6.4.3. End-use breakdown size & forecasts, 2025-2035
8.6.5. Africa Hygroscopic Building Material Market
8.6.5.1. Type breakdown size & forecasts, 2025-2035
8.6.5.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.6.5.3. End-use breakdown size & forecasts, 2025-2035
8.6.6. Rest of LAMEA Hygroscopic Building Material Market
8.6.6.1. Type breakdown size & forecasts, 2025-2035
8.6.6.2. Adsorption Process breakdown size & forecasts, 2025-2035
8.6.6.3. End-use breakdown size & forecasts, 2025-2035

Chapter 9. Company Profiles

9.1. Top Market Strategies
9.2. Company Profiles
9.2.1. BASF SE
9.2.1.1. Company Overview
9.2.1.2. Key Executives
9.2.1.3. Company Snapshot
9.2.1.4. Financial Performance (Subject to Data Availability)
9.2.1.5. Product/Services Port
9.2.1.6. Recent Development
9.2.1.7. Market Strategies
9.2.1.8. SWOT Analysis
9.2.2. Knauf Gips KG
9.2.3. Saint-Gobain
9.2.4. Wacker Chemie AG
9.2.5. Mitsubishi Chemical Group
9.2.6. Zeochem AG
9.2.7. Imerys
9.2.8. Poraver North America
9.2.9. Lhoist Group
9.2.10. American Elements