Shandong Lianjie Engineering Materials Co., Ltd. is registered at Zhaozhuang Industrial Park, Taian High-Tech Industrial Development Zone, with the administrative authority being the Development Zone Branch of Taian Municipal Administration for Market Regulation (Chu Wen). The legal representative is Cai Jishuai. The company's business scope includes the production and sales of geogrids, geotextiles, geomembranes, geocells, geonets, geopads, composite geomembranes, composite geogrids, steel-plastic composite false ceiling nets for underground coal mines, biaxially oriented plastic guardrails, bentonite waterproof blankets, drainage boards, waterproof boards, three-dimensional vegetation nets, three-dimensional composite drainage nets, crack-resistant strips, seam tapes, flexible permeable pipes, blind gutters, ecological bags, and planting bags; as well as the sales of glass fiber fabrics, foam boards, connectors, polypropylene fibers, and plastic products.