Haoyang Environment Co., Ltd. is a manufacturer of geosynthetic materials headquartered in Dezhou (Yucheng) National High-tech Industrial Development Zone, Shandong Province, China. The company specializes in producing drainage geonets that are certified to both European (CE) and Eurasian (GOST) standards, making them suitable for regulated infrastructure and industrial projects worldwide.

Industry Context: The Growing Need for Certified Drainage Geonets

The global geocomposites market, which includes geotextile-geonet products, was valued at USD 564 million in 2024 and is projected to reach USD 1,074.88 million by 2032. Drainage applications accounted for a 44.55% revenue share in 2024, according to Grand View Research. Among materials, polyethylene-based drainage nets dominate nearly 64% of global demand due to their high chemical resistance. These market dynamics underscore the importance of selecting drainage geonets that meet recognized compliance frameworks — not only for performance but also for regulatory acceptance across export markets.

Defining the Product: Drainage Geonet Specifications

Haoyang Environment Co., Ltd. produces a drainage geonet with a model designation of 4.0mm–8.0mm thickness. Key technical parameters include:

• Mass per unit area: 500–1400 g/m² (customizable)
• Tensile strength (MD/TD): ≥5–15 kN/m
• Elongation at break: 10–25%
• Compressive strength (10% strain): ≥500–830 kPa
• Acid/alkali resistance: ≥90% strength retention
• Drainage capacity: ≥50–120 (L/min)/m (customizable)

The product is available in materials including HDPE, PP, and PET, and can be produced as a composite drainage geonet, acid and alkali resistant drainage geonet, high compressive resistance drainage geonet, 3D composite drainage geonet, polyester filament composite drainage geonet, and high-strength polypropylene composite drainage geonet, among other configurations.

Certification Framework: CE and GOST Compliance

Haoyang’s composite drainage geonet holds a Verification of Conformity (ICR) for the EU/EEA market under certificate number ICR/VC/HE250523, issued by ICR, confirming compliance with EN 13249:2016 and valid until May 19, 2030.

For the EAEU/Russia market, the product is certified to GOST 56586-2015 (Certificate POCC CN.32682.047C00.0C01.H00840), GOST 70090-2022 (Certificate POCC CN.32682.047C00.OC01.H00837), and a 3D composite drainage geonet holds GOST certification under GOST 33068-2014 (Certificate POCC CN.32682.04NC中0.OC01.H00838). All GOST certificates are issued by ПрофСерт (ProfSert) and apply to the EAEU market.

Beyond the drainage geonet, Haoyang’s full product line — including geomembranes, geotextiles, and geosynthetic clay liners — also carries corresponding GOST and CE certifications, enabling buyers to source a complete, compliant geosynthetic system from one manufacturer.

Technical Advantages: Composite Design and Material Selection

3D composite drainage geonets integrate a geotextile layer with a geonet core, providing both filtration and high-flow drainage in a single product. The high compressive resistance (≥500–830 kPa at 10% strain) ensures the material maintains its drainage capacity under heavy overburden loads common in subgrade, tunnel, and landfill applications. The acid/alkali resistance (≥90% strength retention) makes it suitable for aggressive chemical environments found in metal smelting and mining operations.

Haoyang produces drainage geonets using integrated molding or hot melt welding processes. The availability of HDPE, PP, and PET allows engineers to select the optimal polymer based on site-specific chemical exposure and temperature requirements.

Application Scenarios: Metal Smelting and Aquaculture

Metal smelting: In the tailings pond basin of a gold mine in Uzbekistan, Haoyang supplied 900,000 square meters of geosynthetic materials, including a 3D composite drainage geonet paired with textured geomembrane. The project demanded high chemical resistance, UV resistance, and long service life (70 years). The solution broke through the traditional single-product supply model by offering a full-chain service from material supply to on-site installation.

Aquaculture: In aquaculture pond anti-seepage systems, drainage geonets work in conjunction with fish-friendly geomembranes to manage groundwater pressure and prevent seepage, ensuring long-term structural integrity of the pond liner.

Additional applications include subgrade drainage, tunnel drainage, slope protection, and landfill drainage — each benefitting from the product’s customizable thickness, mass per unit area, and drainage capacity.

Comparison with Traditional Solutions

Traditional granular drainage layers (e.g., sand and gravel) require thick placement (often >300 mm) and are susceptible to clogging and migration over time. Composite drainage geonets replace these layers with a thin (4–8 mm), high-performance engineered sheet that offers consistent drainage capacity and simplifies installation. One honest limitation: composite geonets must be paired with a filtration geotextile or geomembrane to prevent soil intrusion, and they require careful scanning and protection during backfilling to avoid damage.

Market Trend Analysis

With the global geocomposites market growing at a projected CAGR, and drainage applications leading the revenue share, demand for certified, high-performance drainage geonets is expected to rise. Polyethylene-based materials dominate due to chemical resistance, but polypropylene and polyester variants are gaining traction for specific thermal and chemical environments. Regulatory mandates (EU CE marking, EAEU GOST certification) are becoming prerequisites for supplier selection in large-scale infrastructure and mining projects.

Future Outlook

As infrastructure and mining projects in regions such as Central Asia, Southeast Asia, and Africa expand, the need for drainage geonets that comply with both local and international standards will intensify. Manufacturers like Haoyang, with vertically integrated production (200,000 m² factory, 190 employees, annual output 33,000 tons, 60% export ratio) and certifications spanning EN 13249:2016, GOST 56586-2015, and more, are well-positioned to serve as turnkey suppliers for certified geosynthetic systems.