China's tunneling technology and equipment have progressed remarkably in recent years, fueled by scientific and technological innovation. Construction of the world's longest subsea high-speed railway tunnel, the Jintang tunnel in east China, is rapidly progressing.

The latest technology is leading the digitalization of China's tunneling sector, which is reportedly the world's largest in terms of construction scale. Chinese tunnel boring machines account for about 70 percent of the global market, with over 1,000 upstream and downstream enterprises.