Company Leaders Attend the Third 2025 Executive Vice Chairman Meeting of the International Association for Large-Diameter Engineering Shafts, Piles and Deep Foundations
2026-01-12
On January 10, 2026, the Third 2025 Executive Vice Chairman Meeting of the International Association for Large-Diameter Engineering Shafts, Piles and Deep Foundations was successfully held in Ningbo. Mr. Chao Huanqing, Chairman of our company, Mr. Yang Jingrui, Chairman of our controlled subsidiary (Luoyang Jiujiu Wear-Resistant Material Manufacturing Co., Ltd.), and Mr. Jin Wenge, Vice General Manager of our company, attended the meeting as relevant members of the Association .
On January 10, 2026, the Third 2025 Executive Vice Chairman Meeting of the International Association for Large-Diameter Engineering Shafts, Piles and Deep Foundations was successfully held in Ningbo. Mr. Chao Huanqing, Chairman of our company, Mr. Yang Jingrui, Chairman of our controlled subsidiary (Luoyang Jiujiu Wear-Resistant Material Manufacturing Co., Ltd.), and Mr. Jin Wenge, Vice General Manager of our company, attended the meeting as relevant members of the Association .

Mr. Chao Huanqing

Mr. Yang Jingrui
The meeting was chaired by Executive Vice Chairman Shi Zhiyong. Participants engaged in discussions centered on the agenda of "reviewing the work of 2025, deliberating plans for 2026, and planning the Association's development" .
During the meeting, Secretary-General Ni Xinping presented the annual work report. He pointed out that 2025 was a crucial year, marking the end of the "14th Five-Year Plan" and the planning for the "15th Five-Year Plan". Adhering to its purpose of "Partnering Together, Going Further", the Association achieved positive results in five key areas: event organization, member services, promotion and outreach, technical services, and organizational development. In 2026, the Association will continue to focus on these core areas to advance its work. Subsequently, Superintendent Yang Jingrui reported on the financial situation, indicating that the Association's revenue and expenditure were generally balanced in 2025, and efforts will be strengthened in 2026 to enhance budget management and improve the efficiency of fund utilization. Furthermore, the preparation plan for the "15th International Summit on Large-Diameter Engineering Shafts (Piles) and Deep Foundations" reported by Secretary-General Ni Xinping, along with the aforementioned reports, was reviewed and unanimously approved by the meeting .
In his concluding remarks, Chairman Wang Huirong affirmed the achievements of 2025 and expressed gratitude for the contributions of all members. For the 2026 work, he outlined five key requirements: event organization should focus on practical needs and effective closed-loop management; member development should prioritize precise strategies and enhanced services to strengthen cohesion; promotional efforts should multi-dimensional and brand-oriented to continuously expand industry influence; technical services should aim for precise alignment and quality efficiency to build a one-stop support platform; organizational development should consolidate foundations and improve systems to enhance teamwork and execution. Chairman Wang emphasized that the Association remains committed to its mission of serving members and promoting industry development, deepening key technological research, and helping enterprises solve practical difficulties. This meeting clarified the direction, built consensus, and participants expressed their continued support for the Association's work, pledging to jointly promote the high-quality development of the industry .

List of Attendees
Association Chairman: Wang Huirong
Executive Vice Chairmen: Shi Zhiyong, Chao Huanqing, Zhang Jinlin, Liu Yongquan, Yang Shenglong, Zhao Meixiang
Former Chairman: Zhu Yuanlin
Former Executive Vice Chairman: Liu Zhongchi
Vice Chairmen: Chen Gang, Lin Deng, Li Haijun
Superintendent: Yang Jingrui
Secretary-General: Ni Xinping
Liaisons from Executive Units: Jin Wenge, Liao Wan, Wang Peng, Hu Huairen, Liu Xiucheng, Shen Haijiao
NEWS
Development Status of Large-Diameter Drilling at Home and Abroad
Abstract: Large-diameter drilling (also known as shaft sinking by drilling method) originated in Western Europe. After technological iterations in various countries, it has been widely applied and relevant equipment developed in the United States, the Soviet Union, Germany and other countries. China conducted trials in 1958 and drilled its first mine shaft in 1969, gradually achieving independent development and expanding its applications to national defense, high-rise buildings, sewage treatment and other fields.
This paper focuses on customized demands for overseas markets, introducing four core products: TBM Cutters, Raise Boring Machine (RBM) Roller Cutters, Reverse Circulation Drilling (RCD) Roller Cutters, and Wear & Heat-Resistant Materials. It briefly describes their specifications, advantages, application scenarios and quality standards. The products are compatible with mainstream overseas equipment models, covering various industries and geological conditions. Adopting advanced manufacturing processes, all products are certified under ISO9001 and can be supported with relevant international certifications.OEM/ODM customization is available. Supported by an annual production capacity of 30,000 sets of cutters and over 10,000 tons of wear & heat-resistant materials, together with multilingual technical support and full-cycle after-sales service, the products fully meet the supporting requirements of complex overseas engineering projects.
With the steady advancement of global underground infrastructure construction, the wear-resistant material technology of shield tunneling machine tools is accelerating iteration and upgrading. Its performance level directly determines the operational efficiency of shield equipment and the control effect of the whole life cycle cost of projects. Currently, the innovation of wear-resistant materials for shield tunneling machine tools presents three core development directions: composite diversification, intelligent technology integration, and green remanufacturing, which will continue to promote the upgrading and improvement of tool products towards high performance and low carbonization.
Contact us