South Korea’s lithium battery recycling industry is booming, driven by the global surge in electric vehicles and portable electronics. As the country ramps up efforts to meet its net-zero goals, lithium battery recycling plants are popping up nationwide—but with growth comes a critical challenge: air pollution. The recycling process releases harmful emissions like volatile organic compounds (VOCs), particulate matter, and acid gases, making robust air pollution control systems non-negotiable. In this guide, we’ll spotlight the top 10 suppliers in South Korea that are leading the charge in keeping lithium battery recycling clean, compliant, and sustainable. From cutting-edge filtration to smart monitoring, these companies are redefining environmental responsibility in the industry.
1. EcoTech Solutions Seoul
EcoTech Solutions Seoul
Founded in 2005, EcoTech Solutions Seoul has cemented its reputation as a pioneer in environmental engineering, with a laser focus on air pollution control for high-stakes industries. When it comes to lithium battery recycling, their air pollution control system for li battery recycling plant stands out for its modular design, allowing plants to scale from 500 kg/h to 2,500 kg/h capacity without sacrificing efficiency.
What sets EcoTech apart? Their systems integrate a three-stage purification process: first, a high-efficiency particulate air (HEPA) filter to trap dust and metal particles; second, a catalytic oxidizer to break down VOCs into harmless CO2 and water; and third, a scrubber to neutralize acid gases like hydrogen fluoride. Clients rave about their real-time monitoring dashboard, which sends alerts to plant managers if emissions edge toward regulatory limits—critical for staying compliant with South Korea’s strict Air Quality Control Act.
Notable partnerships include a 2024 project with a major lithium battery recycler in Incheon, where EcoTech’s system reduced emissions by 92% within the first six months. They also offer comprehensive after-sales support, including annual maintenance and filter replacement services, ensuring long-term reliability.
2. Hanwha Environmental Technologies
Hanwha Environmental Technologies
A subsidiary of the Hanwha Group, one of South Korea’s largest conglomerates, Hanwha Environmental Technologies brings decades of engineering expertise to the table. Their air pollution control system for lithium battery recycling plants is a favorite among large-scale operators, thanks to its ability to handle high-volume emissions with minimal energy consumption.
Hanwha’s flagship system, the “EcoPure Li-Batt Series,” combines a baghouse filter for particulate removal with a regenerative thermal oxidizer (RTO) for VOC destruction—achieving up to 99% destruction efficiency for even the most stubborn organic compounds. What clients love most is the system’s energy recovery feature: waste heat from the RTO is redirected to preheat incoming air, cutting operational costs by up to 30% compared to conventional systems.
In 2023, Hanwha partnered with a Seoul-based lithium battery recycling plant to retrofit their existing setup, resulting in a 40% reduction in energy use and full compliance with the Ministry of Environment’s latest emission standards. With a nationwide network of service centers, Hanwha ensures quick response times for maintenance—an essential perk for plants operating 24/7.
3. Samsung Engineering Environmental Division
Samsung Engineering Environmental Division
Samsung Engineering needs no introduction, but their environmental division is a hidden gem in the air pollution control space. Leveraging Samsung’s tech-driven DNA, they’ve developed a lithium battery recycling plant air control system that’s as smart as it is powerful. Their “SmartAire Li” system uses AI-powered sensors to adapt in real time to emission fluctuations, ensuring consistent purification even during peak recycling hours.
The system’s standout feature is its predictive maintenance algorithm, which analyzes sensor data to forecast filter clogging or component wear, alerting operators weeks in advance. This proactive approach has reduced unplanned downtime by 65% for clients like a Busan-based recycler processing 1,500 kg/h of lithium batteries. Samsung’s system also integrates seamlessly with plant management software, allowing operators to monitor emissions, energy use, and maintenance schedules from a single dashboard.
For plants prioritizing sustainability, Samsung offers an optional carbon capture module that captures CO2 from emissions, which can be repurposed for industrial use or stored—aligning with South Korea’s carbon neutrality targets. It’s no wonder they’ve become a go-to for tech-savvy recyclers aiming to future-proof their operations.
4. Daewoo Clean Air Systems
Daewoo Clean Air Systems
Daewoo Clean Air Systems has been a stalwart in South Korea’s environmental technology sector since 1998, and their foray into lithium battery recycling air control has been nothing short of impressive. Their specialty? Compact, high-performance systems designed for mid-sized plants that need maximum efficiency in limited space.
Their “CompactPure” series is a game-changer for facilities with spatial constraints. Despite its smaller footprint, the system doesn’t skimp on power: it uses a combination of electrostatic precipitators (ESPs) and activated carbon adsorption to remove 99.5% of particulates and 98% of VOCs. For a Gwangju-based recycler with a 500 kg/h line, the CompactPure system fit into a 30% smaller area than competitors’ models, freeing up space for additional processing equipment.
Daewoo also excels in customization. Recognizing that no two lithium battery recycling plants are alike, they work closely with clients to tailor systems to specific emission profiles—whether the plant processes more cathode materials (high in lithium and cobalt) or anode materials (prone to releasing hydrocarbons). Their team of in-house engineers even offers on-site training for plant staff, ensuring operators can troubleshoot minor issues independently, reducing reliance on external service calls.
5. LG Chem Environmental Systems
LG Chem Environmental Systems
A division of LG Chem—one of the world’s largest battery manufacturers—LG Chem Environmental Systems brings unique insights to air pollution control for lithium battery recycling. After all, who better to understand the emissions of battery recycling than a company that makes batteries themselves? Their air pollution control system for li battery recycling plant is engineered with an intimate knowledge of the chemicals and processes involved, resulting in solutions that target specific pollutants with pinpoint accuracy.
Their “BattClean Pro” system is optimized to tackle the unique emissions of lithium battery recycling, such as lithium hexafluorophosphate (a toxic electrolyte component) and heavy metals like nickel and manganese. The system uses specialized acid-resistant scrubbers and heavy metal-specific filters, ensuring compliance with South Korea’s stringent standards for hazardous air pollutants. In 2024, LG Chem partnered with their own battery recycling pilot plant in Cheongju, where BattClean Pro achieved emissions levels 70% below regulatory limits—setting a new benchmark for the industry.
Another standout feature is LG Chem’s focus on circularity: the activated carbon used in their systems is sourced from recycled battery casings, closing the loop on waste. For clients committed to sustainability, this not only reduces environmental impact but also qualifies them for government green incentives. With LG Chem’s deep industry knowledge and commitment to innovation, it’s no surprise they’re a top choice for recyclers aiming to align with battery manufacturers’ strict environmental standards.
6. Seoul AirTech Innovations
Seoul AirTech Innovations
Seoul AirTech Innovations may be a newer player (founded in 2015), but they’ve quickly made a name for themselves with their innovative, cost-effective air pollution control solutions. Focused on small to medium-sized lithium battery recycling plants, they’ve carved a niche by offering high-quality systems at a fraction of the cost of larger competitors—without cutting corners on performance.
Their “EcoMinimal” system is a hit among startups and regional recyclers. It combines a simple yet effective two-stage process: a cyclonic separator to remove larger particulates (like metal fragments) and a biofilter for VOCs, where microorganisms break down organic compounds into harmless byproducts. While biofilters are slower than RTOs, they use 60% less energy, making them ideal for plants with tight budgets. A Daegu-based recycler with a 300 kg/h line reported saving over ₩50 million annually on energy costs after switching to EcoMinimal.
Seoul AirTech also prides itself on transparency. Unlike some suppliers that lock clients into proprietary replacement parts, they use off-the-shelf components, making maintenance cheaper and more accessible. Their customer service team is known for its responsiveness, with a 24-hour hotline and average on-site service arrival time of under 4 hours in the Seoul metropolitan area. For small plants looking to balance performance and affordability, Seoul AirTech is a breath of fresh air.
7. Hyundai Environmental Engineering
Hyundai Environmental Engineering
Hyundai Environmental Engineering, part of the Hyundai Heavy Industries Group, is a heavyweight in industrial air pollution control, and their entry into the lithium battery recycling space has been marked by their signature focus on durability and long-term performance. Their systems are built to withstand the harsh conditions of recycling plants—high temperatures, corrosive gases, and constant operation—and keep running for decades.
Their “Titan Series” air pollution control system is constructed with corrosion-resistant alloys and heat-treated components, ensuring a lifespan of 15+ years with proper maintenance. The system’s heart is a high-temperature ceramic filter that can handle gases up to 800°C, making it ideal for plants that use pyrolysis (high-heat decomposition) in their recycling process—a common method for recovering valuable metals from lithium batteries. A Ulsan-based recycler using pyrolysis has relied on Hyundai’s Titan system for over 10 years, with only minor component replacements needed, proving its durability.
Hyundai also offers a unique “Total Care Package,” which includes annual inspections, filter replacements, and system upgrades to keep up with evolving regulations. For example, when South Korea tightened its VOC emission limits in 2023, Hyundai retrofitted existing Titan systems with advanced catalytic converters at no extra cost for clients under the package. For plants that value reliability and long-term partnership, Hyundai is a solid bet.
8. SK Ecoplant Air Solutions
SK Ecoplant Air Solutions
SK Ecoplant, a leader in green infrastructure, has brought its expertise in sustainable technology to air pollution control for lithium battery recycling. Their systems are designed not just to control pollution but to turn waste into resources—aligning with the circular economy principles that drive the recycling industry itself.
Their “ResourceMax” system is a prime example: beyond purifying air, it recovers certain emissions for reuse. For instance, sulfur dioxide (a byproduct of some battery recycling processes) is captured and converted into sulfuric acid, which can be sold to chemical manufacturers. A Suwon-based plant using ResourceMax reports generating an additional ₩20 million monthly from sulfuric acid sales, turning a cost center (pollution control) into a revenue stream.
SK Ecoplant also leads in renewable energy integration. Their systems can be paired with solar panels or wind turbines to reduce reliance on grid electricity, lowering both carbon footprints and energy bills. A Jeju Island recycling plant, known for its commitment to green energy, paired SK Ecoplant’s system with on-site solar, achieving 60% renewable energy use for its air control operations. With SK Ecoplant, sustainability isn’t just a buzzword—it’s a bottom-line benefit.
9. Doosan Environmental Systems
Doosan Environmental Systems
Doosan Environmental Systems, a division of Doosan Group, is known for its innovative engineering, and their air pollution control systems for lithium battery recycling plants are no exception. They specialize in “smart integration,” ensuring their air control systems work seamlessly with a plant’s existing recycling equipment—from shredders to separators—to optimize overall efficiency.
Their “SynchroAir” system uses IoT connectivity to communicate with other plant machinery, adjusting airflow and purification levels based on real-time recycling activity. For example, if the shredder is processing more batteries (releasing higher emissions), SynchroAir automatically ramps up filtration; during lulls, it reduces energy use. This dynamic adjustment has helped a Goyang-based plant cut energy consumption by 25% while maintaining consistent emission levels. Doosan’s system also integrates with most major plant management software, making it easy to add to existing setups without overhauls.
Doosan’s team of systems integrators works closely with clients during installation, ensuring minimal downtime during setup. A Incheon-based recycler reported that Doosan installed their SynchroAir system in just 3 days, compared to the industry average of 1 week, getting them back to full production faster. For plants looking to upgrade without disrupting operations, Doosan’s smart integration approach is a game-changer.
10. Kwangwoon Environmental Tech
Kwangwoon Environmental Tech
Rounding out our list is Kwangwoon Environmental Tech, a mid-sized company with a focus on innovation and customer-centric solutions. While they may not have the brand recognition of Samsung or Hyundai, Kwangwoon has earned a loyal following among lithium battery recyclers for their agility and willingness to experiment with new technologies.
Their latest breakthrough is a “PlasmaPurge” system that uses plasma technology to neutralize pollutants. Plasma—an ionized gas—reacts with harmful emissions, breaking them down into harmless elements at the molecular level. Early tests show it’s 99.9% effective at destroying even the most toxic gases, including fluorinated compounds found in lithium battery electrolytes. A small pilot plant in Busan has been using Kwangwoon’s PlasmaPurge system for over a year, with emissions testing showing levels lower than any other technology on the market.
Kwangwoon also offers flexible pricing models, including lease-to-own options, making cutting-edge technology accessible to startups and small plants. Their team is known for collaborating with clients on R&D, often inviting recyclers to test new features in exchange for feedback. For example, a client in Daejeon helped Kwangwoon refine their PlasmaPurge system’s energy efficiency, resulting in a 20% reduction in power use—a win-win for both parties. For recyclers eager to adopt the latest technology without breaking the bank, Kwangwoon is a hidden gem.
Comparing the Top Suppliers: At a Glance
| Supplier | Core Technology | Capacity Range | Key Strength | Best For |
|---|---|---|---|---|
| EcoTech Solutions Seoul | HEPA + Catalytic Oxidizer + Scrubber | 500-2,500 kg/h | Modular scalability | Growing plants |
| Hanwha Environmental Technologies | Baghouse + RTO with energy recovery | 1,000-2,500 kg/h | Energy efficiency | Large-scale operations |
| Samsung Engineering | AI-optimized filtration + RTO | 500-2,000 kg/h | Smart monitoring & maintenance | Tech-focused plants |
| Daewoo Clean Air Systems | ESP + Activated Carbon | 300-1,500 kg/h | Compact design | Space-constrained facilities |
| LG Chem Environmental Systems | Specialized scrubbers + Heavy metal filters | 500-2,000 kg/h | Battery-specific pollutant targeting | High-precision recycling |
| Seoul AirTech Innovations | Biofilter + Cyclonic Separator | 300-1,000 kg/h | Budget-friendly | Small plants, startups |
| Hyundai Environmental Engineering | Ceramic filters for high temps | 500-2,500 kg/h | Durability (15+ year lifespan) | Pyrolysis-based plants |
| SK Ecoplant Air Solutions | Emission recovery + Renewable integration | 500-2,000 kg/h | Circular economy focus | Sustainability-driven plants |
| Doosan Environmental Systems | IoT-connected filtration | 500-2,000 kg/h | Seamless plant integration | Existing facility upgrades |
| Kwangwoon Environmental Tech | Plasma Purification | 300-1,500 kg/h | Ultra-low emissions | Innovative, eco-conscious plants |
Choosing the Right Supplier: What to Consider
Selecting an air pollution control system supplier for your lithium battery recycling plant isn’t just about picking a name—it’s about finding a partner that aligns with your plant’s size, budget, and sustainability goals. Start by assessing your capacity needs: a small 300 kg/h plant may thrive with Seoul AirTech’s EcoMinimal, while a 2,500 kg/h facility might benefit from Hanwha’s energy-efficient RTO. Next, consider your unique emissions profile: if you process more cathode materials, LG Chem’s specialized scrubbers could be critical. Finally, don’t overlook long-term support—Hyundai’s Total Care Package or Samsung’s predictive maintenance can save headaches down the line.
South Korea’s lithium battery recycling industry is at a crossroads, with environmental responsibility becoming as important as profitability. The suppliers on this list aren’t just selling equipment—they’re enabling the industry to grow sustainably, ensuring that the shift to clean energy doesn’t come at the cost of clean air. Whether you’re a startup or a seasoned operator, investing in the right air pollution control system is an investment in your plant’s future, your community’s health, and South Korea’s green legacy.
