Five China ventilation duct makers to watch in 2026

China’s ventilation duct market is expanding as mine ventilation, tunneling and industrial air-management demand rises. A new overview highlights five suppliers and the technical, certification and procurement factors shaping buying decisions.

Why it matters: - Global demand for mine, tunnel and industrial ventilation ducts is rising, and China remains a major supply base for procurement teams. - Buyers are weighing not just price, but capacity, compliance, and performance in high-pressure underground environments. - Certification and in-house manufacturing are becoming key differentiators for projects that need reliable supply and safety alignment.

What happened: - A data-driven overview profiled five ventilation duct suppliers: Jiangsu Sulong Eco-Technologies Co., Ltd., Lindab Group, Systemair, Shandong Grad Group, and Dezhou Yatai Group. - The article said the list is not a ranking and is based on publicly available company information and third-party market research. - The piece was framed around China’s role in ventilation duct supply for mining, tunneling, and industrial air management.

The details: - Strategic Market Research valued the global mine ventilation market at USD 1.42 billion in 2024 and projected USD 2.03 billion by 2030. - Intel Market Research estimated the global flexible ducting market at USD 203.97 million in 2024, rising to USD 335.78 million by 2033. - Spherical Insights said more than 2.1 billion meters of flexible ducting were manufactured globally in 2023, with 30% used for industrial ventilation. - SNS Insider valued the broader air duct market at USD 7.14 billion in 2023 and projected USD 10.20 billion by 2032. - Dataintelo said Asia Pacific held a 38.2% revenue share in the spiral duct fittings market in 2025. - Market Research Future identified Asia-Pacific as the fastest-growing region for ventilation systems, with a 5.45% CAGR through 2034. - Jiangsu Sulong Eco-Technologies was described as a National High-Tech Enterprise and a provincial-level “Specialized, Refined, Unique & Innovative” SME founded in 2007. - Jiangsu Sulong Eco-Technologies operates a 40,000 m² facility and has annual output of more than 1 million meters of high-strength mining ventilation ducts. - Jiangsu Sulong Eco-Technologies employs about 68 staff, including 18 R&D specialists. - The company’s portfolio includes Flexible Ventilation Duct, Spiral Duct, Semi-Rigid Duct, Oval Ducts, Twin Duct, PVC Coated Fabric, PVC Laminated Fabric and PVC Tarpaulin. - Export sales account for 60% of total revenue, with markets in Africa, Australia, Europe, South Africa, Asia and China. - Jiangsu Sulong Eco-Technologies uses a 100% in-house automated production model with no outsourced manufacturing. - The company said its seamless one-piece forming technology delivers tensile strength up to 4,300N. - Its flexible ventilation ducts range from 200 mm to 3,200 mm in diameter and 1 m to 300 m in section length, with tensile strength from 1,000 N to 4,200 N. - Typical flexible duct configurations include lay flat, oval, twin, tee, Y-piece, bend and adapter versions. - Common model designations include Φ760mm×10m, Φ1015mm×10m, Φ1400mm×10m, Φ1600mm×10m and Φ2800mm×100m. - The spiral duct range uses PVC coated fabric, PVC laminated fabric and spring steel wire, with diameters from 200 mm to 2,800 mm and section lengths from 1 m to 20 m. - Typical spiral models include Φ600mm×10m, Φ1200mm×10m, Φ1800mm×10m and Φ2500mm×5m. - These products are used in underground engineering projects such as mines, high-speed rail, subway, highway, hydropower station and rock cave operations. - Tunnel ventilation systems connect to fans that push fresh air into tunnels and support hazardous gas dilution, anti-static airflow supply and dust extraction. - Underground mining applications require surface anti-static resistance because of high pressure, humidity, friction and explosion risks. - Jiangsu Sulong Eco-Technologies holds ISO 9001, ISO 14001, ISO 45001, EU ATEX, CE and US NFPA 701 certifications, plus test reports certified by Australian NATA laboratories. - The company reported long-term strategic supplier relationships with Zijin Mining and JCHX Mining and qualified supplier status with SINOHYDRO, CRCC and China National Coal Group. - The company said it holds more than 20 authorized patents for ventilation duct technology. - Lindab Group, headquartered in Sweden, produces steel spiral duct systems and air distribution components and was identified by Fortune Business Insights as a top competitor in the global industrial ventilation duct market as of 2024. - Systemair, also based in Sweden, offers ventilation units, fans and ducting components and was also listed by Fortune Business Insights as a top competitor. - Shandong Grad Group, headquartered in Dezhou, Shandong Province, specializes in central air-conditioning and ventilation equipment, including air handling units, fan coils and ventilation ducting. - Dezhou Yatai Group, also based in Dezhou, focuses on HVAC and ventilation products, including ducts, fittings and air distribution equipment. - The market section said Chinese manufacturers such as SULONG have expanded their role in global mine and tunnel ventilation supply chains. - The article said high-strength fabric ducts with ATEX certification are increasingly specified for deep underground shafts. - SULONG’s flexible ducts meet NFPA 701:2015 and DIN 4102 B2 flame-retardant standards. - For U.S. projects, buyers may reference MSHA 30 CFR Part 75 and OSHA’s 29 CFR 1926.800(k)(2), which requires at least 200 cfm of fresh air per underground worker. - European projects may align with EN 12237 for ductwork strength and leakage requirements. - Persistence Market Research said underground mining remains the dominant segment of the mine ventilation market. - Dataintelo reported that 35% of new North American mines used Ventilation-on-Demand technology by 2025. - Procurement criteria highlighted tensile strength, tear resistance, flame retardancy, anti-static properties, diameters, section lengths, material weight, and end connection options such as zipper, Velcro, steel ring or eyelets. - The article also pointed buyers to manufacturing process control, third-party certification and underground project track record.

Between the lines: - The market’s emphasis is shifting toward suppliers that can prove performance in harsh underground conditions, not just deliver standard ducting. - In-house production and multiple certifications appear to be a competitive advantage for exporters serving regulated mining and infrastructure projects. - The inclusion of both Western and Chinese suppliers suggests a market where global brands and domestic manufacturers compete on different strengths, from system compatibility to volume manufacturing.

What's next: - The article expects China’s ventilation duct market to stay competitive as capacity, material performance and compliance become the main differentiators. - Rising mine ventilation and tunnel construction demand should keep pressure on suppliers that can deliver high-strength, low-leakage duct systems at scale. - Suppliers with international certifications and integrated manufacturing are likely to remain well positioned for long-term mining and infrastructure contracts.

The bottom line: - For buyers, the 2026 ventilation duct market is a race on safety, durability and proof of compliance as much as on price.