Herb Plastic Composites (HPC) are made from agricultural and forestry waste using patented technology to produce fiber composite particles, sheets, and profiles. The product combines the dual advantages of wood and plastic: compared with traditional plastic wood, it has low water absorption, improved nail holding power, and has strong resistance to deformation, insect decay, and weather resistance; It retains the processing performance of wood that can be sawed, nailed, planed, and riveted, while also possessing the characteristics of plastic injection molding, extrusion, and 100% recyclability. Widely used in six major fields including building materials, landscaping, and home decoration, it surpasses traditional wood in comprehensive performance and reduces costs by 20%, making it an ideal green alternative material.