Key Insights• According to the research report, "South Korea Gas Cleaning Technologies Market Outlook, 2031," published by Bonafide Research, the South Korea Gas Cleaning Technologies Market is anticipated to grow at more than 5.97% CAGR from 2026 to 2031.• South Korea represents a mature and technologically advanced market for gas cleaning technologies, supported by major steel, petrochemical, refining, semiconductor, cement, power generation, shipbuilding and manufacturing industries. The market has a strong focus on high-efficiency pollution-control equipment, process optimization and continuous emissions monitoring. • South Korea also has a strong market for specialized gas treatment in semiconductor and electronics manufacturing. Semiconductor and display facilities use advanced scrubber systems to treat process gases, including fluorinated greenhouse gases, creating demand for high-temperature and high-efficiency gas-abatement technologies.Market Outlook• Particulate control technologies are expected to remain a major segment, particularly across steel, cement, power generation and heavy manufacturing. Fabric filters, electrostatic precipitators, cyclones and high-efficiency dust collectors are important technologies for these applications.• NOx and SOx control will continue to generate demand in power generation, steel, refining and petrochemical facilities. SCR, SNCR, desulfurization systems, scrubbers and other flue-gas treatment technologies are increasingly integrated with monitoring and process-control systems.• The semiconductor and display industries provide a higher-value opportunity for specialized gas cleaning. Process gas scrubbers are required to treat fluorinated gases and other hazardous gases generated during semiconductor manufacturing, while increasing semiconductor production capacity supports demand for new abatement systems. • Replacement and retrofit demand is expected to remain important because South Korea has a large installed base of industrial emission-control equipment.

Operators are increasingly focused on reducing pollutant emissions while improving energy efficiency and reducing operating costs.Policies • South Korea's Ministry of Climate, Energy and Environment regulate industrial air emissions through national air-pollution legislation, emission standards and monitoring programs. Large industrial facilities are subject to continuous or remote monitoring of major pollutants.• The country's stack remote-monitoring system measures pollutants including dust, SOx, NOx, HCl, HF, NH3 and CO, providing regulators with real time information on emissions from major industrial facilities.• The government also promotes environmental technologies for particulate, VOC, NOx and SOx reduction. South Korea has previously selected domestic technologies covering dust control, VOC reduction, denitrification and desulfurization, supporting the development and adoption of locally manufactured pollution-control equipment. • South Korea's climate policy is also increasing pressure on energy-intensive industries to reduce greenhouse-gas emissions. The government has identified lower-emission technologies for steel, cement, basic chemicals, semiconductors and displays as areas for green investment and technology development. Industry Statistics • In 2025, 954 large industrial facilities were covered by South Korea's stack remote-monitoring system, with 3,708 monitored stacks. Total monitored air-pollutant emissions reached approximately 208,937 tonnes, up 0.6% from 2024. • Pollutant emissions per monitored stack declined by 3.4% to 56 tonnes in 2025, indicating improvements in emission-control performance despite a slight increase in total monitored emissions. • In 2025, monitored emissions included approximately 138,402 tonnes of NOx, 63,666 tonnes of SOx, 4,411 tonnes of dust and 2,077 tonnes of CO. NOx remained the largest pollutant category among the monitored facilities. • The industrial sector remains a major source of greenhouse gas emissions.

South Korea's 2024 industrial-sector greenhouse gas emissions were approximately 285.9 million tonnes CO₂e, increasing 0.5% from the previous year. Petrochemical emissions increased 4.4%, while refining emissions increased 6.1%.Segment AnalysisSouth Korea Gas Cleaning Technologies Market By Technology• Particulate control represents a major technology segment in the South Korea gas cleaning technologies market, supported by the country's steel, petrochemical, chemicals, cement, power generation, shipbuilding, non-ferrous metals, and manufacturing industries. Baghouse filters, electrostatic precipitators, cyclones, fabric filters, and other dust collection systems are widely used to control particulate emissions from industrial processes. South Korea's environmental framework specifically recognizes the prevention and treatment of particulate matter, SOx, NOx, and VOCs as key air-pollution-control activities, supporting continued investment in industrial gas-cleaning systems.• NOx control represents a significant technology segment, particularly across power generation, steel, cement, chemicals, refining, and other combustion-intensive industries. Selective catalytic reduction, selective non-catalytic reduction, low-NOx burners, staged combustion, and combustion optimization technologies are used to reduce nitrogen oxide emissions. South Korea has operated an emission-cap management system for major establishments in the Seoul Metropolitan area, covering NOx and SOx, while industrial emissions monitoring provides an additional driver for efficient NOx-control technologies. South Korea Gas Cleaning Technologies Market By End-Use• Power represents a significant end-use sector for gas cleaning technologies in South Korea, particularly across thermal power generation and industrial combustion facilities.

Particulate collectors, flue-gas desulfurization systems, NOx-control equipment, and other emissions-control technologies are used to manage pollutants generated during fuel combustion. The country's SOx and NOx emission-management framework, together with continuous monitoring of major industrial emitters, supports demand for efficient flue-gas treatment systems.• Metals & steel represent one of the major end-use segments in South Korea because of the country's large integrated steelmaking and metal-processing industries. Blast furnaces, basic oxygen furnaces, electric arc furnaces, sintering, casting, rolling, and other high-temperature processes generate dust, fumes, metal-containing particulates, SOx, NOx, and other pollutants. Baghouses, electrostatic precipitators, fume-extraction systems, wet scrubbers, and specialized filtration technologies are used across these operations. The strong emphasis on industrial air-pollution prevention and continuous monitoring supports ongoing demand for advanced gas-cleaning technologies. South Korea Gas Cleaning Technologies Market By System• New installation systems represent an important portion of the South Korea gas cleaning technologies market, particularly for new petrochemical facilities, semiconductor and electronics manufacturing plants, steel and chemical facilities, waste-treatment infrastructure, industrial boilers, and other process facilities. New systems are designed according to plant capacity, process characteristics, pollutant profiles, and applicable Korean environmental requirements.

South Korea's integrated environmental-management approach and BAT-oriented permitting framework support the incorporation of advanced particulate, scrubbing, NOx, VOC, and fine-particle control technologies into new industrial installations.• Retrofit/replacement systems account for a substantial share of demand because South Korea has a mature installed base of steel mills, petrochemical complexes, chemical plants, power facilities, cement plants, refineries, waste treatment facilities, and manufacturing assets. Existing gas-cleaning systems are upgraded or replaced to improve removal efficiency, meet tighter emissions requirements, accommodate process modifications, and extend equipment operating life. The continued tightening and monitoring of SOx and NOx emissions, together with the country's integrated environmental-permitting approach, creates opportunities for modernization of existing pollution control systems.Considered in this report• Historic Year: 2020• Base year: 2025• Estimated year: 2026• Forecast year: 2031Aspects covered in this report• Gas Cleaning Technologies Market with its value and forecast along with its segments• Various drivers and challenges• On-going trends and developments• Top profiled companies• Strategic recommendationBy Technology• Particulate Control• Gas Scrubbing• NOx Control• VOC/Organic Gas Control• Fine Particle/Mist ControlBy End-Use• Power• Cement• Metals & Steel• Chemicals• Refining & Petrochemicals• Mining• Pulp & Paper• OthersBy System• New Installation• Retrofit/Replacement• Aftermarket/Services.