China Railway Seventh Group
China Railway Seventh Group is a comprehensive construction enterprise under China Railway.
Last updated August 31, 2026
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Overview
China Railway Seventh Group Co., Ltd. is a wholly-owned subsidiary of China Railway Engineering Corporation, mainly engaged in construction of railways, highways, municipal works, and buildings, with business covering domestic and international markets.
History
China Railway Seventh Group is a construction company operating as a subsidiary of China Railway Group Limited, itself part of the China Railway Engineering Corporation structure. The available reference material identifies the company through this group affiliation and describes it as a participant in railway, road, bridge, and wider civil-engineering activity. A precise founding date and a detailed chronology of its domestic development are not established in the cited material. The company’s international profile developed through infrastructure work in Africa and other overseas markets. Its reported African operations span West Africa, including Guinea, Mali, Senegal, and Sierra Leone, as well as Tanzania, Mozambique, and Zambia in other parts of the continent. It has also operated in Saudi Arabia and Bolivia. Bridge building is a recurring part of the company’s overseas work. Reported projects include the Dinghiraye and Niger bridges in Guinea, the Medinandiathbe River bridge in Senegal, the Mpiji and Ruvu bridges in Tanzania, and the Gao Bridge in Mali. Sierra Leone provides the clearest documented example of CRSG’s overseas road-building activity. In December 2011, the company started work on the Regent-to-Grafton and Kossor Town road project using approximately US$30 million in development assistance funds from the Chinese government. Its other reported Sierra Leone assignments included the 35-kilometre Makeni–Matotoka highway, the 65-kilometre Bo–Kenema Highway, the 62-kilometre Port Loko–Lungi axis, and urban thoroughfares such as Wilkinson Road and Spur Road. At a ceremony marking the opening of construction, President Ernest Bai Koroma praised CRSG’s integrity, competence, and trustworthiness. Taken together, these projects position CRSG as a project-delivery contractor serving public infrastructure programs. Its international work has emphasized roads and bridges that connect communities, support trade, and improve national transport networks. The cited material does not provide sufficient information about changes in ownership, leadership, corporate reorganizations, financial performance, or current project status. Those areas remain open for further verification.
- 2011
Sierra Leone road construction began
[1]CRSG started work in December on the Regent-to-Grafton and Kossor Town road project, financed with approximately US$30 million in Chinese government development assistance.
Products and positioning
An institutional engineering and infrastructure-construction contractor within the China Railway Group system, focused on transport connectivity, bridges, roads, and major public works in China and selected international markets.
Infrastructure construction
Bridge construction
Bridge building is one of CRSG’s most visible international capabilities. Reported overseas projects include the Dinghiraye and Niger bridges in Guinea, the Medinandiathbe River crossing in Senegal, the Mpiji and Ruvu bridges in Tanzania, and the Gao Bridge in Mali. These assignments form part of broader transport and civil-engineering programs rather than a standardized commercial product line.
Transport infrastructure
Highway and road construction
CRSG undertakes road and highway construction for public infrastructure programs. In Sierra Leone, reported projects include the 35-kilometre Makeni–Matotoka highway, the 65-kilometre Bo–Kenema Highway, the 62-kilometre Port Loko–Lungi corridor, and the Regent-to-Grafton and Kossor Town road. The company has also worked on urban roads such as Wilkinson Road and Spur Road.
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