Sapphire Corporation Ltd


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China continues to advance its urban rail system at an astonishing pace, from tramways and monorails to underground subways. By the end of 2017, China’s largest cities have seen their own networks expand exponentially with 34 urban transit systems and 165 lines (5033 km in total) built up and in operations.

Meanwhile, a total of 62 cities have been approved for construction and operation of urban rail transit network with a planned length of 7424 km.

Specialising in complex subway construction projects, this segment has been a core business component of Ranken’s business portfolio since its establishment in 1998.

Over the years, Ranken has accumulated strong technical and engineering knowledge and deep industry experience with various subway construction projects completed in Beijing, Xi’an, Qingdao, Chengdu, Chongqing, Urumqi, Guiyang, Taiyuan, Nanning.

To further enhance our industry knowledge and reinforce our strengths, Ranken Design Institute was established in 2009 with a focus on the research, design and development of urban transit, railway, highway, multiple tunnel, industry and civil building, ground and underground engineering, etc. to technical support for our construction activities.

Comprising of young academics and engineering talents from China’s leading subway design institutes, the researchers at Ranken Design Institute are involved in various complex urban rail system design and construction projects in China.