On June 22, 2024, Professor Du Yanjun from the Department of Underground Engineering at the School of Transportation, Southeast University, was invited by Chairman Xie Shiping to visit and exchange ideas with our company. Professor Du visited the en_gcl production line and laboratory in detail. After the visit, Vice General Manager He Shunhui gave a detailed introduction to our company's en_gcl product types, research and application of new en_gcl products, en_gcl composite vertical barrier technology and its application cases. Professor Du highly praised our company's continuous research and development, and had in-depth discussions on bentonite modification, the development of new en_gcl products, and the application of en_gcl composite vertical barrier.