Sapphire Corporation Ltd


Our Businesses

Urban Infrastructure

Our 100%-owned subsidiary, Ranken Railway Construction Group Co., Ltd. and its subsidiaries (“Ranken”) is one of China’s largest privately-owned integrated infrastructure design and construction groups with a track record in major infrastructure projects across China, Bangladesh, India and Saudi Arabia.

Founded in 1998, Ranken has offices in Beijing and Chengdu and it is one of the few privately-owned operators in China to obtain the prestigious Triple-A certifications and licenses for design, construction and project consultation in China’s construction sector.

Ranken’s clients are mostly state-owned enterprises, consortiums and Fortune-500 companies in China.

Subway (sublink under urban infrastructure)

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.

Expressways (sublink under urban infrastructure)

China has the world’s largest road network with a total 4.7 million kilometers of road in use and an expressway distance of more than 130,000 kilometers.

As China's economy grows even more, keeping the country (with the largest population in the world) on the move has become a priority for the Chinese government.

Since participating in the construction of Mianyang-Guangdong (绵阳-广州) expressway in 1999, Ranken has been involved in the construction projects of 16 expressways in Huabei (华北) district and Southwest China.

Despite working under difficult soil conditions and challenging engineering issues, Ranken has accumulated the specialised earthwork construction knowledge and tunnelling experience to complete projects safely on a timely and cost-effective basis.

Municipal Infrastructure (sublink under urban infrastructure)

As a key component in China's urbanization, urban municipal public infrastructure plays an important role in promoting economic development and improving living standards.

Ranken’s track record in this segment includes the Beijing Capital International Airport's T3 Terminal Auxiliary Project and Chengdu Shuangliu International Airport Expansion Project.

Railway (sublink under urban infrastructure)

In 2007, China embarked on a national "speed-up" campaign, and rolled out its first bullet train line connecting Beijing to Tianjin in time for the 2008 Summer Olympics.

Since then, China has spent an estimated 2.4 trillion yuan building 22,000 kilometers of high-speed rail lines, more than the total railway length in 1949 when the People's Republic of China was founded.

With our unrelenting pursuit of excellence, Ranken has been involved in railway construction projects for more than 14 years, which includes new railway line and existing lines, tunnels, extra-large bridges, and large-scale earthworks, among others.

Some of our railway projects are as follows:

  • Dazhou-Wanzhou Railway
  • Inner Mongolia-Kunming Railway
  • Zhuzhou-Liu Panshui Railway
  • Tibet-Hefei Railway
  • Handan-Huang Huagang Railway
  • North Station of Qingdao Railway
  • Kunming Railway Hubs.

Building Construction (sublink under urban infrastructure)

China’s growing urbanization and economic growth have led to more building construction activities and projects.

With our integrated engineering and construction capabilities, Ranken has also undertaken different types of industrial and civil building works in various cities in China.

Environment Protection and Water Treatment

As China's economy continues to grow, it also faces a growing number of water and environmental issues.

Recognising that environmental protection and ecological restoration are key factors to be considered at the stages of design, planning and construction for sustainability of major infrastructure projects in China, Ranken has ventured into this niche area in the recent years with a growing track record.

Ranken has successfully constructed and completed many iconic city water environmental and landscape projects, which includes the following, among others:

  • Dragon Shaped Water Systems Project in Beijing Olympic Center
  • Funan River Comprehensive Treatment Project in Chengdu
  • Dian Lake Comprehensive Treatment and landscape Project in Kunming
  • Beijing Olympic Park Central Corridor Pavement Project
  • Beijing Olympic Park Southern District Underground Utility Tunnel Project
  • Beijing Olympic Park Southern District Landscape Platform Project
  • Jiuyan Bridge Reconstruction Project in Chengdu
  • Zagunao Hydropower Station Diversion Tunnel Project in Sichuan
  • Emergency Water Supply Buried Culvert of Middle South-to-North Water Diversion
  • Emergency Water Supply Pipe Network of South-to-North Water Diversion in Fangshan District

Reinforcing its commitment and focus in this area, Ranken entered into strategic partnerships in 2017 with major Chinese conglomerates and state-owned enterprises, Beijing Enterprises Water Group (北控水务集团有限公司) and China Railway Investment Group (中铁投资集团有限 公司) to explore long-term projects civil engineering and infrastructure projects relating to environmental conservation and water management.

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Ranken’s Clientele: