The Global Rebar Market was valued at USD 217.5 Billion in 2024 and is projected to reach USD 298.3 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of 5.2% during the forecast period (2024–2030). This robust growth is primarily fueled by surging global infrastructure development, urbanization in emerging economies, and increased government spending on public works and sustainable construction projects.

As nations worldwide invest in building resilient and modern infrastructure, the demand for reinforcing steel bar (rebar) continues to rise. In this blog, we profile the Top 10 Companies in the Rebar Market—global steel giants and regional powerhouses that are constructing the backbone of our built environment.

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🔟 1. ArcelorMittal

Headquarters: Luxembourg City, Luxembourg
Key Offering: Standard Rebar, Welded Wire Mesh, High-Strength Rebar

ArcelorMittal is the world’s largest steelmaker and a dominant force in the rebar market. With production facilities across the Americas, Europe, Africa, and Asia, the company supplies a vast range of reinforcing steel products for major infrastructure, commercial, and residential projects globally.

Sustainability & Innovation Initiatives:

• Development of XCarb® green steel certificates for low-carbon footprint rebar.

• Investment in electric arc furnace (EAF) technology to reduce CO2 emissions.

• Commitment to reducing carbon intensity by 25% by 2030 and achieving net-zero by 2050.

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9️⃣ 2. Gerdau S.A.

Headquarters: Porto Alegre, Brazil
Key Offering: Rebar, Wire Rod, Special Steel Bars

Gerdau is one of the leading producers of long steel in the Americas and a major rebar supplier. The company operates numerous mini-mills, predominantly using scrap-based EAF production, making it a key player in the circular economy for steel.

Sustainability & Innovation Initiatives:

• Focus on EAF production, which has a significantly lower environmental impact than traditional blast furnaces.

• Active participation in developing standards for low-carbon construction materials.

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8️⃣ 3. Nippon Steel Corporation

Headquarters: Tokyo, Japan
Key Offering: High-performance Rebar, Epoxy-Coated Rebar, SD390 & SD490 Grades

Nippon Steel is a Japanese steelmaking titan with advanced rebar manufacturing capabilities. The company is renowned for its high-strength and corrosion-resistant rebar products, which are essential for earthquake-resistant construction and harsh environments.

Sustainability & Innovation Initiatives:

• Pioneering research into high-strength, lightweight rebar to reduce material usage.

• Development of advanced coatings and alloys to enhance rebar durability and longevity.

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7️⃣ 4. POSCO

Headquarters: Pohang, South Korea
Key Offering: POS-BAR (Rebar), High Ductility Rebar, Anti-Corrosive Rebar

POSCO is a leading South Korean steelmaker with a significant share in the Asian rebar market. The company’s products are widely used in mega-projects across South Korea, Southeast Asia, and the Middle East, known for their consistent quality and performance.

Sustainability & Innovation Initiatives:

• Investment in HYREX (Hydrogen Reduction Ironmaking) technology for green steel production.

• Implementation of smart manufacturing processes to improve efficiency and reduce waste.

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6️⃣ 5. Tata Steel Ltd.

Headquarters: Mumbai, India
Key Offering: TMT Rebar, Corrosion-resistant Rebar, Tata Tiscon Brand

Tata Steel is India’s largest private-sector steel company and a major supplier of Thermo-Mechanically Treated (TMT) rebar. Its flagship brand, Tata Tiscon, is one of the most trusted rebar brands in the Indian construction sector.

Sustainability & Innovation Initiatives:

• Strong focus on producing TMT rebar, which offers superior strength and seismic resistance.

• Commitment to increasing the use of recycled scrap in production.

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5️⃣ 6. Commercial Metals Company (CMC)

Headquarters: Irving, Texas, USA
Key Offering: Rebar, Merchant Bar, Post-Tensioning Systems

Commercial Metals Company is a leading U.S. manufacturer and recycler of steel and metal products. CMC’s vertically integrated operations, from recycling to finished rebar, make it a key supplier for North American infrastructure and construction markets.

Sustainability & Innovation Initiatives:

• Operates one of the largest metal recycling networks in the U.S., emphasizing circular production.

• Utilizes micro-mill technology for highly efficient, localized rebar production.

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4️⃣ 7. Steel Dynamics, Inc. (SDI)

Headquarters: Fort Wayne, Indiana, USA
Key Offering: Rebar, Engineered Special Bar Quality (SBQ) Steels, Fabricated Rebar

Steel Dynamics is another major North American steel producer known for its high efficiency and profitability. The company produces a wide range of steel products, with rebar being a significant segment of its business, supplied to construction firms across the continent.

Sustainability & Innovation Initiatives:

• Heavy reliance on EAF technology, resulting in a lower carbon footprint per ton of steel.

• Investment in new, highly efficient production facilities.

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3️⃣ 8. Jiangsu Shagang Group

Headquarters: Zhangjiagang, China
Key Offering: Rebar, Wire Rod, Hot-rolled Coil

Jiangsu Shagang Group is one of China’s largest privately-owned steel enterprises and a massive producer of rebar. It plays a crucial role in supplying the domestic Chinese market, which is the world’s largest consumer of steel for construction.

Sustainability & Innovation Initiatives:

• Active in upgrading production facilities to meet China’s increasingly stringent environmental standards.

• Focus on producing higher-value, specialized steel grades.

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2️⃣ 9. EVRAZ plc

Headquarters: London, United Kingdom
Key Offering: Rebar, Rails, Large-Diameter Pipes

EVRAZ is a leading vertically integrated steel and mining company with strong operations in Russia and North America. It is a key supplier of rebar and other construction steel products in these regions, supported by its own raw material base.

Sustainability & Innovation Initiatives:

• Investments in modernizing production assets for improved environmental performance.

• Development of long-life, high-value steel products for infrastructure.

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1️⃣ 10. Hyundai Steel

Headquarters: Seoul, South Korea
Key Offering: H-ReBar, H-Section Steel, Wire Rods

Hyundai Steel is South Korea’s second-largest steelmaker and a major supplier to the domestic construction and automotive industries. The company produces a comprehensive range of rebar products that meet the high standards required for modern Korean infrastructure.

Sustainability & Innovation Initiatives:

• Implementation of energy-saving technologies and processes across its manufacturing plants.

• Research into sustainable steelmaking practices and products.

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🏗️ Outlook: The Future of Rebar is Smarter and Greener

The global rebar market is evolving beyond basic reinforcement to meet the demands of smarter infrastructure and sustainable construction. While traditional rebar remains the volume leader, the industry is increasingly focused on high-performance, durable, and environmentally conscious products.

📈 Key Trends Shaping the Market:

• Rising demand for high-strength TMT rebar in seismic zones and high-rise construction.

• Growing adoption of corrosion-resistant rebar (epoxy-coated, galvanized, stainless steel) to extend infrastructure lifespan.

• Increased use of Electric Arc Furnace (EAF) production, leveraging recycled scrap for a lower carbon footprint.

• Stringent government regulations and green building certifications (like LEED) driving demand for sustainable steel products.

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The companies listed above are not only supplying the essential materials for global construction—they are actively building a more resilient and sustainable future for the built environment.