PUBLISHER: The Business Research Company | PRODUCT CODE: 1933587
PUBLISHER: The Business Research Company | PRODUCT CODE: 1933587
The selective catalytic reduction (SCR) system is an advanced emission control technology designed to reduce harmful nitrogen oxides (NOx) from exhaust gases. It operates by injecting a urea-based solution, commonly called Diesel Exhaust Fluid (DEF), into the exhaust stream, which reacts with a catalyst to convert NOx into harmless nitrogen and water vapor. SCR systems are widely implemented in vehicles, power plants, and industrial applications to comply with strict environmental regulations and improve air quality.
The main types of selective catalytic reduction (SCR) systems include urea-based SCR, ammonia-based SCR, and others. Urea-based SCR systems use Diesel Exhaust Fluid (DEF), a solution of urea and deionized water, injected into the exhaust stream of diesel engines. Key components include the catalytic converter, urea tank, pump, control unit, and injector, used across various vehicle types such as passenger cars, commercial vehicles, and off-highway vehicles. These systems are employed in applications including automotive, marine, industrial, power generation, and other sectors.
Note that the outlook for this market is being affected by rapid changes in trade relations and tariffs globally. The report will be updated prior to delivery to reflect the latest status, including revised forecasts and quantified impact analysis. The report's Recommendations and Conclusions sections will be updated to give strategies for entities dealing with the fast-moving international environment.
Tariffs are significantly impacting the selective catalytic reduction system market by increasing the cost of imported catalysts, urea dosing modules, electronic control units, sensors, and precision injection components. Automotive and industrial SCR manufacturers in Europe, North America, and Asia-Pacific are particularly affected due to their dependence on cross-border supply chains for catalytic materials and electronic parts. These tariffs have raised system integration costs and extended procurement timelines, directly influencing pricing for commercial vehicles, off-highway equipment, and stationary power applications. However, tariffs are also encouraging localization of SCR component manufacturing, regional catalyst production, and long-term investments in domestic emission control technologies, strengthening supply chain resilience.
The selective catalytic reduction (SCR) system market research report is one of a series of new reports from The Business Research Company that provides selective catalytic reduction (SCR) system market statistics, including selective catalytic reduction (SCR) system industry global market size, regional shares, competitors with the selective catalytic reduction (SCR) system market share, selective catalytic reduction (SCR) system market segments, market trends, and opportunities, and any further data you may need to thrive in the selective catalytic reduction (SCR) system industry. This selective catalytic reduction (SCR) system market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenario of the industry.
The selective catalytic reduction (scr) system market size has grown strongly in recent years. It will grow from $6.26 billion in 2025 to $6.84 billion in 2026 at a compound annual growth rate (CAGR) of 9.2%. The growth in the historic period can be attributed to stricter emission regulations across regions, widespread adoption of diesel engines in commercial vehicles, expansion of power generation infrastructure, increasing industrial air quality standards, technological advancements in catalytic materials.
The selective catalytic reduction (scr) system market size is expected to see strong growth in the next few years. It will grow to $9.64 billion in 2030 at a compound annual growth rate (CAGR) of 8.9%. The growth in the forecast period can be attributed to rising penetration of scr systems in emerging markets, increasing adoption in marine and industrial sectors, growing investments in low-emission technologies, expansion of off-highway vehicle applications, continuous tightening of global emission norms. Major trends in the forecast period include increasing adoption of advanced emission control systems, rising integration of smart sensors and control units, growing demand for DEF optimization technologies, expansion of scr systems in off-highway applications, enhanced focus on regulatory compliance.
The rising air pollution concerns are expected to drive the growth of the selective catalytic reduction (SCR) system market going forward. Air pollution refers to the presence of harmful substances such as gases, particles, and biological molecules in the atmosphere that negatively impact human health, ecosystems, and the environment. These concerns are increasing due to growing industrial activity and vehicle emissions, which release significant quantities of pollutants such as nitrogen oxides, sulfur dioxide, and particulate matter. SCR systems address these issues by reducing nitrogen oxide (NOx) emissions from vehicles and industrial engines, converting them into harmless nitrogen and water, thereby supporting cleaner air and ensuring compliance with strict environmental regulations. For example, in December 2024, the European Environment Agency (EEA) reported that EU deaths linked to PM2.5 pollution in 2022 fell by 45%, progressing toward the 55% reduction target set for 2030 under the Zero Pollution Action Plan. Therefore, rising air pollution concerns are driving the growth of the SCR system market.
Major companies in the SCR system market are focusing on advancements in emission control technologies to improve system efficiency, reduce nitrogen oxide emissions, and meet increasingly stringent environmental standards. Emission control involves technologies that minimize harmful pollutants generated by engines and industrial processes. For example, in June 2025, Yanmar Marine International, a Europe-based manufacturing company, introduced an advanced SCR system for its 6LY400-440 engine series that reduces NOx emissions by up to 90%, surpassing IMO Tier III requirements for marine engines in Emission Control Areas (ECAs). The system integrates with YANMAR's 6LY common rail engines and uses sensors and an ECU to inject Diesel Exhaust Fluid (DEF/AdBlue), which converts NOx into nitrogen and water. Weighing just 86 kg, the compact and lightweight system is suitable for commercial vessels above 130 kW and leisure vessels over 24 meters, allowing for easier retrofitting. Although not certified for U.S. waters, the technology underscores YANMAR's commitment to sustainable marine solutions while maintaining engine performance.
In April 2024, OGEPAR Group, a Belgium-based diversified financial holding company, acquired Hug Engineering AG from Forvia for an undisclosed amount. This acquisition supports Ogepar's efforts to expand its presence in the exhaust after-treatment systems (EATS) market and strengthen its sustainability-focused portfolio by incorporating Hug's expertise in emission reduction technologies. Hug Engineering is a Switzerland-based engineering company specializing in SCR systems.
Major companies operating in the selective catalytic reduction (scr) system market are BASF SE, Johnson Matthey Plc, Cummins Inc., Denso Corporation, Continental AG, Bosch GmbH, Tenneco Inc., OPmobility, Wartsila Oyj Abp, Babcock & Wilcox Enterprises Inc., Albonair GmbH, Eminox Limited, DCL International Inc., Faurecia SE, Hitachi Zosen Corporation, Mitsubishi Heavy Industries Ltd., Haldor Topsoe A/S, Umicore SA, Clariant AG, Cormetech Inc., Shell Catalysts & Technologies
Asia-Pacific was the largest region in the selective catalytic reduction (SCR) system market in 2025. Asia-Pacific is expected to be the fastest-growing region in the forecast period. The regions covered in the selective catalytic reduction (scr) system market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa
The countries covered in the selective catalytic reduction (scr) system market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Taiwan, Russia, South Korea, UK, USA, Canada, Italy, Spain.
The selective catalytic reduction (SCR) system market consists of revenues earned by entities by providing services such as system installation, maintenance, retrofitting, and technical support. The market value includes the value of related goods sold by the service provider or included within the service offering. The selective catalytic reduction (SCR) system market also consists of sales of products including catalysts, urea or diesel exhaust fluid (DEF), injectors, dosing systems, control units, sensors, exhaust pipes, and complete SCR kits. Values in this market are 'factory gate' values, that is, the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors, and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.
The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).
The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.
Selective Catalytic Reduction (SCR) System Market Global Report 2026 from The Business Research Company provides strategists, marketers and senior management with the critical information they need to assess the market.
This report focuses selective catalytic reduction (scr) system market which is experiencing strong growth. The report gives a guide to the trends which will be shaping the market over the next ten years and beyond.
Where is the largest and fastest growing market for selective catalytic reduction (scr) system ? How does the market relate to the overall economy, demography and other similar markets? What forces will shape the market going forward, including technological disruption, regulatory shifts, and changing consumer preferences? The selective catalytic reduction (scr) system market global report from the Business Research Company answers all these questions and many more.
The report covers market characteristics, size and growth, segmentation, regional and country breakdowns, total addressable market (TAM), market attractiveness score (MAS), competitive landscape, market shares, company scoring matrix, trends and strategies for this market. It traces the market's historic and forecast market growth by geography.
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