The Global NOx Reduction Additives Market was valued at USD 2.1 Billion in 2024 and is projected to reach USD 3.4 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of 5.8% during the forecast period (2024–2030). This growth is being driven by increasingly stringent emissions regulations worldwide, growing adoption of emission control technologies across industries, and rising demand from the transportation sector, particularly diesel vehicles.

As global environmental regulations tighten and industries seek cleaner operations, the spotlight is on the key additive manufacturers who are developing innovative solutions to reduce nitrogen oxide emissions. In this blog, we profile the Top 10 Companies in the NOx Reduction Additives Industry—a mix of chemical specialists, catalyst developers, and environmental technology leaders shaping the future of air quality management.

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🔟 1. Johnson Matthey

Headquarters: London, United Kingdom
Key Offering: Selective Catalytic Reduction (SCR) catalysts, NOx reduction additives, emission control technologies

Johnson Matthey is a global leader in sustainable technologies and emission control solutions. The company develops advanced catalyst systems and additive formulations that reduce NOx emissions across power generation, industrial processes, and transportation sectors.

Innovation Initiatives:

• Leading provider of SCR catalysts for diesel engines

• Specializes in ammonia-based NOx reduction systems

• Developing next-generation catalyst technologies for cleaner combustion

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9️⃣ 2. W.R. Grace & Co.

Headquarters: Columbia, Maryland, USA
Key Offering: Fluid catalytic cracking catalysts, NOx reduction additives for refining

W.R. Grace operates globally as a leading supplier of catalysts and related technologies. The company’s emission control additives help industrial facilities and vehicle manufacturers meet increasingly strict environmental standards.

Innovation Initiatives:

• Advanced FCC catalyst formulations for refineries

• Innovative solutions for stationary and mobile NOx sources

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8️⃣ 3. Mitsui Chemicals, Inc.

Headquarters: Tokyo, Japan
Key Offering: Chemical additives, emission control catalysts, environmental solutions

Mitsui Chemicals develops comprehensive environmental solutions including NOx reduction technologies. The company serves automotive, industrial, and energy sectors with specialized additive formulations.

Innovation Initiatives:

• Specialized chemical additives for air quality improvement

• Integrated approach covering upstream and downstream emission control

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7️⃣ 4. MOL Group Lubricants

Headquarters: Budapest, Hungary
Key Offering: Engine oils with NOx reduction additives, specialized lubricants

MOL Lubricants develops and markets advanced lubricants integrated with NOx reduction technologies. The company serves European markets with specialized formulations for transportation and industry.

Innovation Initiatives:

• Next-generation lubricant additives with emission control properties

• Focus on sustainability and environmental compliance across operations

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NOx Reduction Additives Market – View in Detailed Research Report

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6️⃣ 5. BASF SE

Headquarters: Ludwigshafen, Germany
Key Offering: Chemical catalysts, emission control additives, environmental technologies

BASF develops advanced chemical solutions for emission control across multiple industries. The company’s NOx reduction technologies help customers achieve compliance while maintaining operational efficiency.

Innovation Initiatives:

• Comprehensive portfolio of environmental catalysts and additives

• Strong R&D focus on sustainable chemistry and air quality solutions

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5️⃣ 6. Evonik Industries AG

Headquarters: Essen, Germany
Key Offering: Specialty chemicals, catalyst materials, performance additives

Evonik specializes in developing high-performance chemical solutions for environmental applications. The company’s NOx reduction additives are used in industrial processes and transportation systems.

Innovation Initiatives:

• Advanced material solutions for emission control systems

• Strategic collaborations with automotive and industrial equipment manufacturers

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4️⃣ 7. Clariant International Ltd.

Headquarters: Muttenz, Switzerland
Key Offering: Catalysts and adsorbents, environmental chemicals, process additives

Clariant develops and markets advanced catalyst systems and chemical additives for emission control. The company’s technologies help reduce NOx emissions from various sources while improving process efficiency.

Innovation Initiatives:

• Specialized catalysts for industrial NOx reduction applications

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3️⃣ 8. Albemarle Corporation

Headquarters: Charlotte, North Carolina, USA
Key Offering: Refining catalysts, emission control additives, chemical specialties

Albemarle is a leading global producer of highly-engineered specialty chemicals. The company’s emission control technologies include catalysts and additives specifically designed for NOx reduction in industrial settings and transportation systems.

Innovation Initiatives:

• Advanced catalyst technologies for environmental applications

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2️⃣ 9. Honeywell UOP

Headquarters: Des Plaines, Illinois, USA
Key Offering: Catalysts for refining processes, emission control systems, environmental technologies

Honeywell UOP develops process technologies and catalysts for the refining and petrochemical industries. The company’s technologies help reduce emissions while improving process efficiency and product quality.

Innovation Initiatives:

• Comprehensive emission control solutions for industrial applications

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1️⃣ 10. Axens Group

Headquarters: Rueil-Malmaison, France
Key Offering: Process technologies, catalysts, adsorbents for emission control

Axens provides advanced technologies, catalysts, and services to the global refining industry. The company’s emission control technologies help refineries meet strict environmental regulations while maintaining operational efficiency.

Innovation Initiatives:

• Integrated solutions covering catalyst manufacturing and emission control technologies

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🌍 Outlook: The Future of NOx Reduction Additives Is More Efficient and Integrated

The NOx reduction additives market is undergoing significant transformation as environmental regulations become more stringent globally. While traditional additive formulations remain important, the industry is investing heavily in next-generation catalyst technologies, advanced material science, and integrated emission control systems.

📈 Key Trends Shaping the Market:

• Increasing adoption of SCR systems in diesel vehicles worldwide

• Regulatory requirements for NOx emissions in industrial processes

• Development of multi-functional additives for combined emission control

• Growing focus on sustainability and environmental compliance across industries

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NOx Reduction Additives Market – View in Detailed Research Report

The companies listed above are not only developing essential environmental solutions—they’re driving the clean air transition across global industries.