On June 3, the Renhe Tunnel of the Guangxi Liu-Wu Railway was successfully holed through. Among the whole line's major and difficult works, this tunnel is one that was excavated from a single end and holed through after more than 1,000 meters of construction, opening up yet another key girder-erection corridor route for the project.

The Renhe Tunnel of the Liu-Wu Railway is located in Cangwu County, Wuzhou City, Guangxi. It is a single-tube, double-track tunnel with a total length of 1,043 meters and a maximum burial depth of 75 meters, and was constructed using a single-end excavation scheme.

The Liu-Wu Railway is an important component of the Liuzhou-Guangzhou Railway and a regional trunk railway serving both passenger and freight traffic. Construction of the entire line began on December 1, 2022, and it is scheduled to be completed and opened to traffic by the end of 2026. Once the line is completed and opened, it will be of great significance and play an important role in improving the regional railway transportation network, accelerating the construction of a major cross-regional railway transportation corridor, and promoting better integration of central and eastern Guangxi into the Guangdong-Hong Kong-Macao Greater Bay Area.