China's Rail Project Milestone Coincides with 33% Machinery Export Growth

Edgen Stock

·Mar 30 2026, 07:11

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Key Takeaways

China's completion of a record-setting underwater high-speed rail tunnel highlights the advanced state of its domestic infrastructure capabilities. This engineering success serves as a powerful demonstration for a construction machinery sector that is experiencing a significant export boom, reinforcing China's growing dominance in global heavy industry and high-end manufacturing.

Record-Breaking Tunnel: On March 29, China's 'Linghang' tunnel boring machine (TBM), the world's largest of its kind, finished an 11.18-kilometer underwater section of a new high-speed rail line beneath the Yangtze River.
Massive Infrastructure Investment: The tunnel is a key part of the Shanghai-Chengdu high-speed rail corridor, a mega-project with a total investment exceeding 500 billion yuan that is expected to generate nearly 1.5 trillion yuan in economic activity.
Surging Global Sales: The domestic achievement is matched by surging international demand, as China's construction machinery exports climbed 33.4% year-on-year to $10.686 billion in the first two months of the year, capturing new high-end markets.

Giant TBM Finishes 11.18km Yangtze River Tunnel

On March 29, China’s domestically developed 'Linghang' tunnel boring machine (TBM) successfully completed its 11.18-kilometer journey under the Yangtze River. The completion of the underwater section after 23 months of continuous excavation marks a critical milestone for the Chongtai Yangtze River Tunnel. The machine, the world's largest diameter high-speed rail TBM, is a core component of the Shanghai-Chongqing-Chengdu high-speed railway, a national project connecting three of China's major economic zones.

The entire high-speed rail project represents a total investment of over 500 billion yuan. According to official estimates, its construction and operation will stimulate nearly 1.5 trillion yuan in added value across related industries, from steel manufacturing to intelligent factory production. By linking over a quarter of the nation's advanced manufacturing clusters and 40% of its key laboratories, the line is designed to function as a new economic corridor, significantly cutting travel times and integrating smaller cities into major economic hubs.

Machinery Exports Climb 33.4% to $10.7 Billion

This domestic engineering feat demonstrates the technological capability that is driving a massive expansion in China's global machinery sales. In the first two months of the year, China's construction machinery exports increased 33.4% year-on-year to $10.686 billion. This growth is fueled by strong demand, particularly from countries participating in the Belt and Road Initiative, which saw a 24.6% rise in imports from China, totaling $4.638 billion.

The export success is not limited to developing markets. A recently completed tunnel project in the Swiss Alps utilized a Chinese-made TBM, proving the equipment's reliability in complex geological conditions and opening a path into the high-end European market. This shift marks a dramatic reversal from just two decades ago when China relied entirely on expensive foreign imports for such machinery. Today, China has achieved strategic self-sufficiency and accounts for approximately 70% of the global TBM market, exporting to over 40 countries.