On December 2, 2025, Changsha Tongqiang Electronic Technology Co., Ltd. welcomed a delegation of experts from China West Construction Group for an inspection visit. The two sides engaged in in-depth discussions on the technology and practical application of electro-osmotic pulse anti-seepage and dehumidification.

General Manager Xie Xiangzhi provided a comprehensive overview to the China West Construction Group team regarding our company's innovative achievements in the field of electro-osmotic pulse technology. As a national high-tech enterprise integrating R&D, production, sales, and service, we remain dedicated to breakthroughs and applications in waterproofing and moisture-proofing technologies for underground spaces. Changsha Tongqiang currently holds 33 national invention patents, has obtained EU CE certification, and has contributed to the drafting of industry standards such as the Technical Specification for Reinforcement of Existing Building Underground Spaces and the Technical Specification for Leakage Treatment in Underground Engineering. Through solid scientific research accumulation, we continue to drive technological progress within the industry.

During the exchange, General Manager Xie Xiangzhi highlighted the company's independently developed core technological achievement—the "TQ-EPT Electro-Osmotic Pulse Anti-Seepage and Dehumidification System"—to the delegation. He also presented a rapid simulation model, which visually demonstrated the system's efficient mechanism in addressing leakage and moisture issues in underground structures. Subsequently, the delegation conducted an in-depth inspection of the 1:20 anti-seepage dam model, jointly established by the Disaster Prevention and Mitigation Institute of the Hunan Provincial Water Resources and Hydropower Research Institute and our company. The model vividly illustrated the complete intelligent operational process of the electro-osmotic pulse technology in dam seepage prevention and moisture control.

As a leading enterprise in the construction sector, China West Construction Group has left a profound impression on our company with its extensive engineering experience and rigorous management system. The group's leadership has expressed full recognition of our technological innovation capabilities, product effectiveness, and professional commitment. We sincerely appreciate the guidance and trust extended by China West Construction Group and will take this opportunity to continuously enhance our technology R&D and service standards.