Often viewed through the lens of investment flows and geopolitical rivalry, Africa’s major rail corridors are rarely examined in their most concrete dimension: their routes. Yet distances, the territories they cross, and their port connections are key factors shaping their logistical performance and economic impact.

From the Atlantic to the Indian Ocean, four corridors shape the movement of mining output across southern Africa: Lobito, TAZARA, Nacala and Maputo. Their layout reflects the emergence of transnational logistics routes at the core of the continent’s economic reorganization.

Lobito: an Atlantic gateway to the Copperbelt

The Lobito corridor, spanning roughly 1,300 km on its main line, between 1,289 and 1,739 km depending on branch lines, has emerged as a major logistics corridor linking the Angolan port of Lobito to landlocked mining regions across central and southern Africa. In Angola, it crosses the provinces of Benguela, Huambo, Bié, Moxico and Moxico Leste before extending into the Democratic Republic of Congo’s Lualaba and Haut-Katanga provinces, and onward to Zambia’s Copperbelt and North-West regions.

This gives the corridor a dual role: a logistics function, facilitating mineral exports, and a regional one, helping shape an integrated economic area. Unlike routes oriented toward the Indian Ocean, Lobito provides direct access to the Atlantic, potentially cutting transit times to Europe and North America by up to 20 days compared with road transport.

After years of fragmented management, the corridor has recently become the focus of a large-scale modernization program worth more than $6 billion, backed by the United States, the European Union and other partners.

TAZARA: a historic axis in need of modernization

At 1,860 km, the TAZARA corridor, the Tanzania-Zambia Railway, is one of Africa’s longest. It links Dar es Salaam to Kapiri Mposhi via Tunduma in Tanzania and Nakonde in Zambia. Built during the era of African independence movements, it gave Zambia access to the sea through a rail alternative to road transport.

Still strategically important for copper exports, the corridor is now constrained by aging infrastructure and limited capacity. A rehabilitation program, including conversion to standard gauge and financed by China, is under preparation at an estimated cost of $1.4 billion.

Nacala: an integrated corridor built around coal

Stretching roughly 906 km, between 900 and 1,020 km depending on branch lines, the Nacala corridor stands out for its integrated cross-border design. It connects the Moatize coal basin in Mozambique to the deep-water port of Nacala via Malawi. This setup provides a direct link between extraction sites and the port, reducing transfer points and potentially cutting transit times by three to seven days compared with road transport.

Co-financed by Vale and Mitsui & Co., the corridor has nonetheless fallen short of its original targets, particularly in extending toward certain Zambian mining areas. Last year, Japan, the African Development Bank and several other partners announced plans to raise $7 billion to build the missing sections.

Maputo: a short but heavily used corridor

The Maputo corridor is notable for its heavy usage, with around 30 million tonnes of freight transiting annually, according to the African Development Bank. Linking the port of Maputo to South Africa’s industrial hub of Gauteng, it relies on the 88-km Ressano Garcia line on the Mozambican side, connected to a roughly 460-km South African network operated by Transnet between Komatipoort and Pretoria.

Less focused on extraction than the other corridors, Maputo plays a key role in regional industrial and logistics trade. It is undergoing modernization, with African Development Bank support for the Ressano Garcia section, while South Africa is planning a broader overhaul of its rail network.

Infrastructure serving global supply chains

Despite their potential for regional integration, these corridors remain largely geared toward raw material exports, mainly copper and cobalt from Zambia and the DRC, and coal from Mozambique. These flows primarily serve demand from major foreign economies.

China, historically dominant in this space, continues to secure its industrial supply chains, while the United States, the European Union and Japan are stepping up efforts to diversify sourcing and reduce dependence on Beijing.

In this context, local industrial development, economic diversification and passenger transport remain secondary priorities. For some analysts, more effective use of these corridors will depend on aligning them with national strategies, particularly in local mineral processing, as initiatives in Tanzania, Zambia and the DRC suggest.

A broader but fragmented mining rail network

Beyond these main corridors, Africa has numerous national rail lines dedicated to mining. In North Africa, the Gara Djebilet network in Algeria and the Zouerate network in Mauritania serve iron ore, while Morocco and Tunisia operate phosphate lines.

In West Africa, Guinea is developing the nearly 650-km Simandou corridor, and Liberia relies on the Yekepa-Buchanan line for iron ore exports. In Central Africa, the Gabonese network operated by Setrag handles manganese transport.

These infrastructures, though strategically important, remain weakly interconnected at the regional level, limiting their broader impact on the continent’s economic integration.