In the realm of environmental engineering and construction, geomembrane sheets play a pivotal role in providing effective solutions for various containment, separation, and protection applications. These impermeable membranes are typically made from synthetic materials, with high-density polyethylene (HDPE) geomembrane sheets being among the most popular due to their durability and versatility. In this article, we will explore the significance of geomembrane sheets, the leading suppliers and manufacturers in the industry, and provide insights about their applications and benefits.