Linzhi Metal Structure Factory

The Linzhi Metal Structure Factory (Chinese: 林芝金属结构厂), or Nyingchi Metal Structure Factory, located in the development zone of Nyingchi, Tibet Autonomous Region, was established on June 18, 2016, as the largest metal structure manufacturing facility in Tibet. Built by Jianjiang Hydroelectric Machinery (a subsidiary of Power Construction Corporation of China Sinohydro Bureau),^[1] it filled a historical gap in Tibet's industrial capacity for large-scale metal structure production, particularly for infrastructure projects.^[2]

The factory's creation aligned with regional development goals, positioning it along a strategic corridor connecting Lhasa and inland China.^[3]

Notable early projects included manufacturing components for the Lhasa-Nyingchi Railway’s record-span double-curved steel arch bridge—China's first use of unpainted weather-resistant steel in railway bridges—and supplying metal structures for the Dagu Hydroelectric Plant (Chinese: 大古水电站) and Lhasa River rehabilitation.^[4] Over its first decade, it became integral to Tibet's infrastructure growth while extending its services to international projects, such as Nepal's Nasuwa Hydroelectric Plant.^[5] On April 9, 2025, the first fully automated welding robot of Linzhi Metal Structures Plant was officially put into operation.^[6]