Metallurgical Limestone

Metallurgical Limestone Market Outlook

The global metallurgical limestone market is projected to reach a value of approximately USD 12.5 billion by 2035, growing at a notable compound annual growth rate (CAGR) of 5.8% during the forecast period from 2025 to 2035. This growth is attributed to the increasing demand for metallurgical limestone in various industries, particularly in steel manufacturing, where it acts as a flux to remove impurities from iron ore. Additionally, the rising infrastructure projects and construction activities, especially in emerging economies, are anticipated to further propel the demand for high-quality limestone. Moreover, the growing awareness regarding environmental sustainability is driving innovations in limestone applications, resulting in heightened utilization across various segments. The combination of these factors is expected to create significant growth opportunities in the metallurgical limestone market.

Growth Factor of the Market

The metallurgical limestone market is experiencing substantial growth primarily due to the soaring demand for iron and steel products. As the construction and automotive sectors expand, the need for high-quality steel has surged, directly boosting the use of metallurgical limestone in steel production processes. Furthermore, advancements in mining technologies are enhancing the efficiency and yield of limestone extraction, thus making the product more accessible and cost-effective for manufacturers. Another contributing factor is the increasing regulatory focus on environmental sustainability, leading industries to adopt cleaner production methods that utilize limestone to minimize carbon emissions. Additionally, the expanding agriculture sector is also a vital growth driver, as limestone is widely used to improve soil quality and crop yield, showcasing its versatility beyond metallurgical applications. These combined factors are setting a robust foundation for the growth of the metallurgical limestone market.

Key Highlights of the Market

• The global metallurgical limestone market is projected to grow at a CAGR of 5.8% from 2025 to 2035.
• Increased demand from the steel industry significantly influences market dynamics.
• Innovative applications of limestone in agriculture and environmental processes are emerging.
• Accessibility to limestone deposits is improving due to technological advancements in mining.
• Sustainability initiatives are prompting industries to adopt limestone for reduced emissions.

By Product Type

High-Calcium Limestone:

High-calcium limestone is a primary type of metallurgical limestone known for its high purity and is predominantly used in the steel-making process. Its chemical composition contains significant amounts of calcium carbonate (CaCO3), making it an essential component for fluxing in iron and steel production. This type of limestone reacts with impurities in the ore, such as silica and phosphorus, facilitating their removal and enhancing the quality of the final steel product. The growing demand for high-quality steel in infrastructure projects and automotive manufacturing is driving the growth of this segment, as high-calcium limestone plays a crucial role in ensuring the efficiency of the steel-making process.

Dolomitic Limestone:

Dolomitic limestone, characterized by its unique composition of calcium carbonate and magnesium carbonate, is gaining traction in the metallurgical limestone market. It serves dual purposes as a flux in steel production and as a soil conditioner in agriculture. In metallurgical applications, dolomitic limestone not only helps in the removal of impurities but also acts as a source of magnesium, which is beneficial for certain steel grades. The increasing need for varied steel types for different applications is driving the demand for dolomitic limestone, making it a valuable asset in metallurgical processes.

Magnesian Limestone:

Magnesian limestone, with its rich magnesium content, is another significant product type in the metallurgical limestone market. Used primarily in the production of refractory materials and as a flux in the steelmaking process, magnesian limestone plays a vital role in enhancing the durability and performance of steel products. The rising demand for high-performance steel in industries such as construction, automotive, and machinery is propelling the growth of this segment. Moreover, as industries focus on improving the quality of their outputs, the inclusion of magnesian limestone in metallurgical processes is becoming increasingly critical.

Granular Limestone:

Granular limestone is characterized by its small particle size and is used for various industrial applications, including as an aggregate in construction and for specific metallurgical processes. This product type provides excellent flowability and compaction, making it ideal for use in the construction industry. In metallurgy, granular limestone is increasingly being utilized in sintering processes. The construction boom in emerging markets, alongside the need for improved infrastructure, is expected to drive the demand for granular limestone significantly, thereby contributing positively to the overall metallurgical limestone market.

Crushed Limestone:

Crushed limestone is a versatile material used in various applications, including construction and metallurgy. Its use in steel production primarily revolves around its role as a flux to remove impurities in the production of iron and steel. The increased emphasis on infrastructure development, particularly in developing regions, has led to a surge in the demand for crushed limestone for construction purposes, creating a substantial growth opportunity for this product type. Furthermore, advancements in crushing technology are enhancing the quality and consistency of crushed limestone, making it more appealing to metallurgical applications, thereby bolstering its position in the market.

By Application

Construction Materials:

One of the most significant applications of metallurgical limestone is in the construction materials sector. Limestone is a fundamental ingredient in the production of cement, which is vital for building roads, bridges, and various infrastructure projects. The growing global population and urbanization are resulting in increased construction activities, driving the demand for limestone as a key raw material. Additionally, limestone aggregates are extensively used in concrete and asphalt, further solidifying its importance in the construction industry. The construction materials segment is poised for continuous growth as governments and private sectors invest heavily in infrastructure development, thereby boosting the demand for metallurgical limestone.

Agriculture:

In agriculture, metallurgical limestone is primarily used to improve soil quality and enhance crop yields. The application of limestone helps to neutralize soil acidity, which can otherwise hinder plant growth and nutrient absorption. As the global demand for food increases, the agricultural sector is increasingly utilizing limestone to optimize land productivity and ensure sustainable farming practices. Furthermore, the rising trend of organic farming is further driving the demand for natural soil amendments like limestone, thereby presenting a significant growth opportunity for the metallurgical limestone market within the agricultural application segment.

Industrial Processes:

Metallurgical limestone finds extensive use in various industrial processes beyond steel production. It serves as a key component in the manufacture of glass, paper, and chemicals, among others. In the glass industry, limestone is essential for controlling viscosity and improving the strength of glass products. Additionally, in the chemical manufacturing sector, limestone is used as a filler and as a source of calcium in various chemical reactions. The diversification of limestone applications across different industries is expected to drive growth in this segment, as manufacturers seek cost-effective and efficient solutions.

Environmental Use:

The environmental application of metallurgical limestone is gaining recognition due to its role in pollution control and waste management. Limestone is used in flue gas desulfurization processes to remove sulfur dioxide emissions from power plants, thereby helping to reduce air pollution. Furthermore, limestone is utilized in water treatment facilities for neutralizing acidic waters and removing heavy metals. As environmental regulations become more stringent globally, industries are increasingly adopting limestone-based solutions to meet compliance standards, presenting substantial growth opportunities for the metallurgical limestone market in environmental applications.

Others:

This category includes various other applications of metallurgical limestone, such as in the production of lime, as a filler in products like paints and plastics, and in the agricultural lime market. Each of these applications contributes to the overall demand for metallurgical limestone, showcasing its versatility and adaptability. The constant innovation in product formulations and the increasing focus on sustainability are prompting industries to explore the potential of limestone in new applications. This segment is expected to grow as manufacturers seek to optimize their production processes and reduce environmental impact.

By Distribution Channel

Direct Sales:

Direct sales play a pivotal role in the distribution of metallurgical limestone, especially for large-scale producers who have established direct relationships with end-users like steel manufacturers and construction firms. This channel allows producers to maintain better control over pricing and supply, ensuring that their customers receive the product in a timely and efficient manner. The direct sales model is particularly effective in meeting the large volume demands of industrial users, fostering long-term partnerships and reliability in supply chains. As the market evolves, more companies are likely to adopt this model to strengthen their market presence and customer base.

Distributors/Wholesalers:

Distributors and wholesalers are crucial intermediaries in the metallurgical limestone market, facilitating access to a wider range of customers, including smaller manufacturers who may not have the capacity to purchase directly from producers. These entities provide a vital link between the limestone producers and end-users, ensuring that the product is available in various regions. With the rise of e-commerce and digital platforms, distributors are improving their logistics and inventory management practices, enhancing their ability to meet demand while reducing lead times. This distribution channel is expected to grow as the demand for metallurgical limestone increases across various sectors.

Retail Stores:

Retail stores serve as an important distribution channel for smaller quantities of metallurgical limestone, catering to local markets, agricultural needs, and DIY enthusiasts. While this channel may not be as significant in volume as direct sales or wholesaling, it plays a crucial role in bringing limestone products to consumers who require smaller amounts for personal or small-scale commercial use. Retailers typically stock a variety of limestone products, including agricultural lime and crushed limestone for landscaping, broadening the accessibility of limestone in diverse applications. The growth of home improvement and gardening trends is likely to bolster this distribution channel in the coming years.

E-commerce:

The rise of e-commerce has transformed the distribution landscape of metallurgical limestone, providing manufacturers and retailers with a platform to reach a broader audience. Online sales enable customers to conveniently order limestone products from the comfort of their homes, enhancing accessibility, especially for those in remote areas. E-commerce platforms also allow for increased product visibility, enabling manufacturers to showcase their offerings efficiently. As digital purchasing becomes more commonplace across various sectors, the e-commerce distribution channel is expected to see significant growth, driven by consumer demand for convenience and accessibility in procurement.

Others:

This category encompasses various other distribution channels, such as specialty suppliers and agricultural cooperatives that cater specifically to certain markets. These channels may offer unique products or services tailored to niche applications and customer needs. The presence of multiple distribution pathways enhances the competitiveness of the metallurgical limestone market, ensuring that customers have access to various product types and purchasing options. As market dynamics evolve, companies may explore innovative distribution strategies to optimize supply chains and meet the diverse demands of end-users.

By Ingredient Type

Calcite:

Calcite is one of the most common forms of calcium carbonate and is a significant ingredient type in the metallurgical limestone market. Its high purity makes it an ideal choice for applications in steelmaking, where it acts as a flux to remove impurities. The demand for calcite is particularly strong in industries that require high-quality limestone for specific applications, such as in glass and paint production. As industries increasingly focus on product quality and sustainability, the demand for calcite is anticipated to rise, contributing positively to the overall growth of the metallurgical limestone market.

Aragonite:

Aragonite, another polymorph of calcium carbonate, is used in a variety of applications, including as a filler in plastics and as an additive in animal feed. In metallurgical processes, it can also serve as a source of calcium in steelmaking. Although aragonite is less common than calcite, its unique properties make it suitable for specific applications where higher purity and certain physical characteristics are required. The growing interest in alternative materials and sustainable practices is driving a slow but steady demand for aragonite in the metallurgical sector, thereby enhancing its significance in the market.

Dolomite:

Dolomite, a mineral composed of calcium magnesium carbonate, plays a vital role in the metallurgical limestone market. It is used as both a flux in steelmaking and as a source of magnesium in various industrial applications. Dolomite not only helps improve the quality of the steel by removing impurities but also enhances certain properties of the final product. The increasing focus on producing high-performance steel for construction and manufacturing applications is boosting the demand for dolomite in the metallurgical processes, making it a critical ingredient type in the market.

Magnesite:

Magnesite, which is primarily composed of magnesium carbonate, is utilized in various applications, including as a refractory material and in the production of magnesium oxide. In metallurgical processes, magnesite is used for producing high-quality steel and other alloys. The demand for magnesite is driven by the increasing need for high-performance and lightweight materials in sectors like aerospace and automotive. As industries continue to innovate and seek advanced materials, the role of magnesite in the metallurgical limestone market is expected to grow, creating new opportunities for producers.

Others:

This segment includes various other ingredient types used in metallurgical processes, such as siderite and various blends of limestone products tailored for specific applications. While these types may not constitute the majority of the market, their unique properties and applications can cater to niche markets and specialized needs. The adaptability of limestone products ensures their continuing relevance in various sectors, and as industries evolve, there is potential for the emergence of new ingredient types that could further enhance the metallurgical limestone market.

By Region

The regional analysis of the metallurgical limestone market reveals varied growth dynamics across different areas. North America is expected to account for approximately 30% of the global market share, driven by the robust demand from the steel industry and construction sector. The region is experiencing an increase in infrastructure projects, which is spurring the need for high-quality limestone products. Additionally, the presence of established metallurgical industries and advancements in mining technologies are contributing to the growth trajectory of the market in North America. Meanwhile, Europe is projected to hold a significant share as well, with a market size of around USD 3.5 billion by 2035. The region's focus on sustainability and emission reduction is propelling innovations in limestone applications, particularly in environmental uses.

In Asia Pacific, the market is projected to grow at the highest CAGR of 7.2% during the forecast period, primarily fueled by rapid industrialization and urbanization in countries like China and India. The demand for steel is surging in these regions, directly impacting the consumption of metallurgical limestone. Furthermore, the growing agricultural sector in Asia Pacific is enhancing the demand for limestone for soil conditioning and crop yield improvement. Latin America and the Middle East & Africa are expected to witness moderate growth rates, driven by regional construction projects and increased mining activities. However, the cumulative market share in these regions is anticipated to remain below that of North America and Europe, reflecting the varied industrial landscapes across the globe.

Opportunities

The metallurgical limestone market is poised to benefit from emerging opportunities in various sectors, particularly in sustainable applications. With the increasing emphasis on reducing carbon footprints, industries are exploring innovative ways to utilize limestone in processes that minimize environmental impact. For instance, the growing adoption of flue gas desulfurization technologies in power plants presents a significant opportunity for limestone producers, as it serves to reduce sulfur emissions effectively. Additionally, the agricultural sector is increasingly recognizing the value of limestone in enhancing soil health and crop yield, creating a strong market for agricultural lime. The confluence of sustainability efforts and agricultural needs demonstrates the versatility of limestone, allowing companies to diversify their offerings and capture new market segments.

Furthermore, technological advancements in mining and processing techniques are creating opportunities for metallurgical limestone producers to improve efficiency and product quality. Automated extraction methods and advanced crushing technologies are enabling companies to optimize their production processes, thereby reducing costs and improving margins. Additionally, as the construction sector continues to expand, the demand for high-quality limestone products in cement and aggregate applications is set to rise. As such, companies that invest in innovation and sustainability can position themselves favorably in the competitive landscape, tapping into the growing opportunities within the metallurgical limestone market.

Threats

Despite the optimistic outlook for the metallurgical limestone market, various threats could hinder its growth trajectory. One of the primary challenges is the volatile pricing of raw materials, which can significantly impact production costs for limestone producers. Fluctuations in energy prices, coupled with regulatory changes regarding mining operations, can create uncertainty in the market. Additionally, competition from alternative materials, such as synthetic fluxes and other sources of calcium, may pose a threat to the traditional limestone market. As industries increasingly seek cost-effective and environmentally friendly solutions, limestone producers will need to innovate and adapt to maintain their relevance in the face of evolving market dynamics.

Furthermore, environmental regulations regarding mining practices and emissions are becoming stricter globally. Companies operating in regions with stringent regulations may face increased compliance costs and operational challenges, potentially limiting their market reach. The threat of environmental concerns associated with limestone mining and processing can also impact public perception, leading to potential pushback from communities and environmental groups. As organizations navigate these challenges, it becomes crucial to develop sustainable practices and engage in transparent communication with stakeholders to mitigate risks and ensure long-term viability in the metallurgical limestone market.

Competitor Outlook

• Carmeuse Lime and Stone
• Lhoist Group
• Graymont Limited
• Omya AG
• Vulcan Materials Company
• Schauerman Lime Co.
• Mississippi Lime Company
• United States Lime & Minerals, Inc.
• Marble Falls Limestone Company
• China National Building Material Group Corporation (CNBM)
• Martin Marietta Materials, Inc.
• Texas Lime Company
• GCC of America Inc.
• International Materials, Inc.
• Aglime of Australia

The competitive landscape of the metallurgical limestone market is characterized by the presence of several key players that operate across various regions, offering diverse product portfolios and leveraging unique competitive advantages. These companies are investing in technological advancements and sustainable practices to enhance their operational efficiencies and meet the evolving demands of their customers. A focus on strategic partnerships and collaborations has also emerged, allowing companies to expand their market reach and diversify their product offerings. The competition in this market is intensifying as companies strive to differentiate themselves through product quality, customer service, and innovation.

Carmeuse Lime and Stone, for instance, is a leading player in the market, renowned for its high-quality limestone products and extensive distribution network. The company has established itself as a trusted supplier to various industries, including steel, construction, and agriculture. Another significant player, Lhoist Group, is known for its commitment to sustainability and innovation, focusing on developing environmentally friendly limestone solutions. Their extensive research and development efforts enable them to provide tailored solutions that meet specific customer needs, enhancing their competitive position in the market.

Graymont Limited is another prominent company in the metallurgical limestone market, with a strong emphasis on sustainability and community engagement. The company invests in modernizing its production facilities and expanding its product offerings, ensuring that it remains at the forefront of industry developments. Similarly, Omya AG has built a reputation for its premium calcium carbonate products and is investing in expanding its presence in emerging markets to capitalize on growing demand. Overall, companies in the metallurgical limestone market are focusing on innovation, sustainability, and strategic collaboration to bolster their market positions and drive growth.

• 1 Appendix

  • 1.1 List of Tables
  • 1.2 List of Figures

• 2 Introduction

  • 2.1 Market Definition
  • 2.2 Scope of the Report
  • 2.3 Study Assumptions
  • 2.4 Base Currency & Forecast Periods

• 3 Market Dynamics

  • 3.1 Market Growth Factors
  • 3.2 Economic & Global Events
  • 3.3 Innovation Trends
  • 3.4 Supply Chain Analysis

• 4 Consumer Behavior

  • 4.1 Market Trends
  • 4.2 Pricing Analysis
  • 4.3 Buyer Insights

• 5 Key Player Profiles

  • 5.1 Omya AG
    • 5.1.1 Business Overview
    • 5.1.2 Products & Services
    • 5.1.3 Financials
    • 5.1.4 Recent Developments
    • 5.1.5 SWOT Analysis
  • 5.2 Lhoist Group
    • 5.2.1 Business Overview
    • 5.2.2 Products & Services
    • 5.2.3 Financials
    • 5.2.4 Recent Developments
    • 5.2.5 SWOT Analysis
  • 5.3 Graymont Limited
    • 5.3.1 Business Overview
    • 5.3.2 Products & Services
    • 5.3.3 Financials
    • 5.3.4 Recent Developments
    • 5.3.5 SWOT Analysis
  • 5.4 Texas Lime Company
    • 5.4.1 Business Overview
    • 5.4.2 Products & Services
    • 5.4.3 Financials
    • 5.4.4 Recent Developments
    • 5.4.5 SWOT Analysis
  • 5.5 Aglime of Australia
    • 5.5.1 Business Overview
    • 5.5.2 Products & Services
    • 5.5.3 Financials
    • 5.5.4 Recent Developments
    • 5.5.5 SWOT Analysis
  • 5.6 GCC of America Inc.
    • 5.6.1 Business Overview
    • 5.6.2 Products & Services
    • 5.6.3 Financials
    • 5.6.4 Recent Developments
    • 5.6.5 SWOT Analysis
  • 5.7 Schauerman Lime Co.
    • 5.7.1 Business Overview
    • 5.7.2 Products & Services
    • 5.7.3 Financials
    • 5.7.4 Recent Developments
    • 5.7.5 SWOT Analysis
  • 5.8 Carmeuse Lime and Stone
    • 5.8.1 Business Overview
    • 5.8.2 Products & Services
    • 5.8.3 Financials
    • 5.8.4 Recent Developments
    • 5.8.5 SWOT Analysis
  • 5.9 Mississippi Lime Company
    • 5.9.1 Business Overview
    • 5.9.2 Products & Services
    • 5.9.3 Financials
    • 5.9.4 Recent Developments
    • 5.9.5 SWOT Analysis
  • 5.10 Vulcan Materials Company
    • 5.10.1 Business Overview
    • 5.10.2 Products & Services
    • 5.10.3 Financials
    • 5.10.4 Recent Developments
    • 5.10.5 SWOT Analysis
  • 5.11 International Materials, Inc.
    • 5.11.1 Business Overview
    • 5.11.2 Products & Services
    • 5.11.3 Financials
    • 5.11.4 Recent Developments
    • 5.11.5 SWOT Analysis
  • 5.12 Marble Falls Limestone Company
    • 5.12.1 Business Overview
    • 5.12.2 Products & Services
    • 5.12.3 Financials
    • 5.12.4 Recent Developments
    • 5.12.5 SWOT Analysis
  • 5.13 Martin Marietta Materials, Inc.
    • 5.13.1 Business Overview
    • 5.13.2 Products & Services
    • 5.13.3 Financials
    • 5.13.4 Recent Developments
    • 5.13.5 SWOT Analysis
  • 5.14 United States Lime & Minerals, Inc.
    • 5.14.1 Business Overview
    • 5.14.2 Products & Services
    • 5.14.3 Financials
    • 5.14.4 Recent Developments
    • 5.14.5 SWOT Analysis
  • 5.15 China National Building Material Group Corporation (CNBM)
    • 5.15.1 Business Overview
    • 5.15.2 Products & Services
    • 5.15.3 Financials
    • 5.15.4 Recent Developments
    • 5.15.5 SWOT Analysis

• 6 Market Segmentation

  • 6.1 Metallurgical Limestone Market, By Application
    • 6.1.1 Construction Materials
    • 6.1.2 Agriculture
    • 6.1.3 Industrial Processes
    • 6.1.4 Environmental Use
    • 6.1.5 Others
  • 6.2 Metallurgical Limestone Market, By Product Type
    • 6.2.1 High-Calcium Limestone
    • 6.2.2 Dolomitic Limestone
    • 6.2.3 Magnesian Limestone
    • 6.2.4 Granular Limestone
    • 6.2.5 Crushed Limestone
  • 6.3 Metallurgical Limestone Market, By Ingredient Type
    • 6.3.1 Calcite
    • 6.3.2 Aragonite
    • 6.3.3 Dolomite
    • 6.3.4 Magnesite
    • 6.3.5 Others
  • 6.4 Metallurgical Limestone Market, By Distribution Channel
    • 6.4.1 Direct Sales
    • 6.4.2 Distributors/Wholesalers
    • 6.4.3 Retail Stores
    • 6.4.4 E-commerce
    • 6.4.5 Others

• 7 Competitive Analysis

  • 7.1 Key Player Comparison
  • 7.2 Market Share Analysis
  • 7.3 Investment Trends
  • 7.4 SWOT Analysis

• 8 Research Methodology

  • 8.1 Analysis Design
  • 8.2 Research Phases
  • 8.3 Study Timeline

• 9 Future Market Outlook

  • 9.1 Growth Forecast
  • 9.2 Market Evolution

• 10 Geographical Overview

  • 10.1 Europe - Market Analysis
    • 10.1.1 By Country
      • 10.1.1.1 UK
      • 10.1.1.2 France
      • 10.1.1.3 Germany
      • 10.1.1.4 Spain
      • 10.1.1.5 Italy
  • 10.2 Asia Pacific - Market Analysis
    • 10.2.1 By Country
      • 10.2.1.1 India
      • 10.2.1.2 China
      • 10.2.1.3 Japan
      • 10.2.1.4 South Korea
  • 10.3 Latin America - Market Analysis
    • 10.3.1 By Country
      • 10.3.1.1 Brazil
      • 10.3.1.2 Argentina
      • 10.3.1.3 Mexico
  • 10.4 North America - Market Analysis
    • 10.4.1 By Country
      • 10.4.1.1 USA
      • 10.4.1.2 Canada
  • 10.5 Middle East & Africa - Market Analysis
    • 10.5.1 By Country
      • 10.5.1.1 Middle East
      • 10.5.1.2 Africa
  • 10.6 Metallurgical Limestone Market by Region

• 11 Global Economic Factors

  • 11.1 Inflation Impact
  • 11.2 Trade Policies

• 12 Technology & Innovation

  • 12.1 Emerging Technologies
  • 12.2 AI & Digital Trends
  • 12.3 Patent Research

• 13 Investment & Market Growth

  • 13.1 Funding Trends
  • 13.2 Future Market Projections

• 14 Market Overview & Key Insights

  • 14.1 Executive Summary
  • 14.2 Key Trends
  • 14.3 Market Challenges
  • 14.4 Regulatory Landscape

Segments Analyzed in the Report

The global Metallurgical Limestone market is categorized based on

By Product Type

• High-Calcium Limestone
• Dolomitic Limestone
• Magnesian Limestone
• Granular Limestone
• Crushed Limestone

By Application

• Construction Materials
• Agriculture
• Industrial Processes
• Environmental Use
• Others

By Distribution Channel

• Direct Sales
• Distributors/Wholesalers
• Retail Stores
• E-commerce
• Others

By Ingredient Type

• Calcite
• Aragonite
• Dolomite
• Magnesite
• Others

By Region

• North America
• Europe
• Asia Pacific
• Latin America
• Middle East & Africa

Key Players

• Carmeuse Lime and Stone
• Lhoist Group
• Graymont Limited
• Omya AG
• Vulcan Materials Company
• Schauerman Lime Co.
• Mississippi Lime Company
• United States Lime & Minerals, Inc.
• Marble Falls Limestone Company
• China National Building Material Group Corporation (CNBM)
• Martin Marietta Materials, Inc.
• Texas Lime Company
• GCC of America Inc.
• International Materials, Inc.
• Aglime of Australia