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Sichuan Zhonglong Environmental Protection Co.,Ltd

Sichuan Zhonglong Environmental Protection Co., LTD was established in 2019, located in Xiaohan Industrial Park. The company focuses on the research and production of environmental engineering geosynthetics, integrating environmental technology promotion, solid waste management and professional construction services. It is committed to providing systematic material solutions and construction technology support for various ecological governance projects. 
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With 11 modern production lines, the company has strong large-scale supply capabilities to ensure stable and reliable product quality. All products strictly meet national standards (GB), and the key products meet GRI standards and ASTM test requirements.  

Our products are widely used in fields such as environmental protection and sanitation, municipal landscaping, mining, petrochemicals and water conservancy projects.

Factory Strengths

Composite Drain Series
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Product Series & Application Scenarios

Composite Drain Series

Composite Drain Series

Geocomposite Blanket Series

Geocomposite Blanket Series

HDPE Geomembrane Series

HDPE Geomembrane Series

Nonwoven Geotextile Series

Nonwoven Geotextile Series

Plastic Geogrid Series

Nonwoven Geotextile Series

Our main products

Discover Zhonglong's complete range of high-performance geosynthetics—including HDPE smooth & textured geomembranes, composite geomembranes, 3D drainage nets, GCL, GCCM, uniaxial & biaxial geogrids, and filament & staple fiber geotextiles—engineered to deliver reliable filtration, drainage, reinforcement, and anti-seepage solutions for environmental, water conservancy, mining, energy, agricultural, and infrastructure projects worldwide.

Product Video Showcase

Biaxial Geogrid 001

Biaxial Geogrid 002

Composite Geomembrane 001

HDPE Geomembrane 001

HDPE Geomembrane 002

Nonwovon Geotextile 001

Honors and Qualifications

Sichuan Zhonglong Environmental Protection Co., Ltd. is a recognized leader in geotechnical waterproofing and anti-seepage materials. The company holds CRCC Railway Product Certification, ISO 14001:2015 certification, and multiple AAA-level credit ratings (including enterprise, supplier, and contract compliance). With Grade II waterproofing construction qualifications, a valid Safety Production License, and many years of industry experience, these credentials fully reflect Sichuan Zhonglong's strong capabilities in R&D, quality control, and project execution, ensuring high-performance, value-added solutions for clients nationwide.
23 Years of Quality Management System Certificate
2021 Top 100 Enterprises Title
AAA+ AAA-level honest supplier
AAA Integrity Operation Demonstration Unit
AAA Contract-abiding and Creditworthy Enterprise
High-tech Enterprise Certification Certificate
National Conformity assessment quality
National authoritative inspection qualified unit
Environmental Management System Certification Certificate
Enterprises with stable and qualified product quality for three consecutive years
National Top 100 Integrity Benchmark Enterprises
National Product Quality Assurance and Trustworthy Honor Certificate
National Green Environmental Protection and Trustworthy Brand Enterprise
Honor Certificate
Honor Certificate Quality Supervision Association Honor Certificate
Top Ten Outstanding and Trustworthy Brand Enterprises in Sichuan Province
Vice President Unit of Sichuan Quality Supervision Association
Work Safety License
Outstanding Enterprises in New Technology innovation
Occupational Health and Safety Management System Certification Certificate
Quality Benchmark Demonstration Enterprise
Quality and Integrity Benchmark · Advanced Enterprise in Quality Management
Quality Management System Certification Certificate
Honorary Certificate of the Quality Supervision Association

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