It is necessary to use geosynthetics in construction works of Waste Landfill Sites. Compared to natural materials, by using geosynthetics we can reduce construction cost and provide greater project security by reducing the risk of construction failures. Jinseed-Auvliner®high-density polyethylene (HDPE), which features exceptional resistance to chemicals, stress cracks, tears, punctures and UV radiation, which can as barriers to liquids and landfill gas. Jinseed-Tex® Non-Woven Geotextiles for separation between the soil layers, but also for geomembranes protection when needed.