Revived 1,000 kilometers’ long, Mtwara Railway to connect the Indian Ocean with Lake Malawi in Tanzania
Tanzania Railways Corporation has signed a memorandum of understanding with Egypt’s Arab Contractors, covering new technical and financial work for the proposed standard gauge railway connecting Mtwara Port with Songea, Mbamba Bay.
Set to link Lake Nyasa and the Iniand Ocean, the railway line will also branch towards the Mchuchuma coal and Liganga iron ore projects.
The proposed network, repeatedly described by government as approximately 1,000 kilometres, would create an east to west transport corridor across southern Tanzania, connecting the Indian Ocean with Lake Malawi while providing heavy freight infrastructure for some of the country’s largest undeveloped mineral and industrial projects.
Arab Contractors will undertake the preliminary work at its own cost and is expected to submit an initial report within three months, according to Tanzania Railways Corporation (TRC) Director General Machibya Shiwa, while Transport Minister Professor Makame Mbarawa has described the agreement as “a preparatory step” and said the work must determine actual transport demand, construction costs, economic benefits and possible financing arrangements before Tanzania proceeds further.
The distinction between preparing the project and beginning construction is important because the Mtwara to Mbamba Bay railway is not a new idea and Tanzania is not studying the route for the first time.
Government has previously told Parliament that feasibility and preliminary design work had already been completed, while an earlier feasibility study dating to around 2016 was subsequently identified as requiring review before the project could be taken to investors.
By 2024, government had allocated funding for a transaction adviser to help update the project, prepare procurement documentation and examine implementation through a public private partnership, and by early 2026 officials were still describing the railway as a project whose feasibility work had been completed but whose financing remained unresolved.
The new Arab Contractors assignment should therefore be understood less as a first investigation into whether a railway can physically be built across southern Tanzania and more as an attempt to establish whether the economics of the corridor have changed sufficiently for the project to become financeable.
That question has become more relevant because several of the projects that were always supposed to provide the railway with its economic purpose are moving back onto the government’s active development agenda.
The Mchuchuma coal and Liganga iron and steel projects have spent years moving between negotiation, redesign and delay, leaving the proposed railway without the large and predictable freight volumes that normally justify heavy rail infrastructure.
In 2026, however, government again signalled an intention to move the projects into implementation from 2027, while work is also progressing at Mbamba Bay Port and Mtwara continues to be positioned as a southern maritime gateway.
The railway is therefore being reconsidered at a moment when the industrial geography around it may be becoming materially different from the one that existed when the earlier feasibility study was undertaken a decade ago.
The Railway Will Ultimately Be Decided by Freight
The strongest economic case for the Mtwara to Mbamba Bay railway has never been passenger transport.
It is the movement of heavy commodities and industrial cargo over long distances at costs that road transport cannot easily match.
Mchuchuma contains approximately 428 million tonnes of identified coal reserves, while earlier development plans contemplated production of around three million tonnes of coal annually alongside a 600 MW power station.
Liganga contains roughly 126 million tonnes of identified iron ore reserves in the explored area and has historically been designed around large scale iron and steel production, with plans that have ranged from around one million tonnes of steel annually to considerably higher output under later government proposals.
If those projects begin producing at scale, the logistics problem becomes immediately obvious: millions of tons of coal, ore, steel, machinery and industrial inputs cannot be moved efficiently for hundreds of kilometres by relying predominantly on trucks without imposing high transport costs, road maintenance burdens and congestion.
This is why Mbarawa’s insistence that the new work establish real transport demand should be regarded as the central economic issue behind the agreement.
A railway of this scale carries very high fixed costs regardless of how many trains eventually run over it. Track, bridges, signalling, rolling stock, stations, maintenance facilities and associated infrastructure must all be financed before the first tonne of freight generates revenue.
The commercial question is therefore not whether southern Tanzania possesses enough resources to make the map attractive, but whether those resources can produce reliable annual cargo volumes large enough to support the capital cost of the railway.
For financiers, three million tonnes of committed coal production is much more useful than a geological reserve of hundreds of millions of tonnes that may remain underground, just as an operating steel complex provides a stronger revenue case than a proposed factory whose development timetable remains uncertain.
That relationship also works in reverse, which is one reason the corridor has been difficult to unlock.
Mining and industrial investors want confidence that their products can reach markets at competitive transport costs before committing billions of dollars to production, while railway investors want confidence that the mines and factories will exist before financing the infrastructure designed to serve them.
Tanzania therefore faces a coordination problem rather than a simple construction problem. Mchuchuma, Liganga, Mtwara Port, Mbamba Bay and the railway become substantially more valuable when developed as parts of one industrial system, but each project becomes harder to finance when the others remain uncertain.
The importance of the latest study will depend on whether it can connect those projects through credible production schedules, freight commitments and financing structures rather than simply updating engineering drawings.
Mtwara and Mbamba Bay Could Create a New Southern Trade Axis
At the eastern end of the proposed corridor sits Mtwara Port, whose long term strategic potential has always been larger than its current hinterland.
Tanzania has invested in the port partly because southern Tanzania possesses significant natural gas, agricultural and mineral resources, but maritime infrastructure can only attract large volumes when inland transport makes it economical for producers and traders to reach the coast.
Dar es Salaam has historically dominated Tanzanian international trade because it is connected to the country’s principal road and rail networks and to important inland markets in Tanzania and neighbouring states.
Mtwara has never enjoyed the same concentration of transport infrastructure, limiting the size of the commercial territory from which it can realistically draw cargo.
A railway extending through Songea and towards Mbamba Bay would materially change that calculation.
Coal, iron ore, steel, agricultural produce and manufactured goods could move towards the Indian Ocean at lower unit costs, while imported machinery, equipment, fuel and industrial inputs could travel inland.
The railway would therefore expand the effective economic hinterland of Mtwara Port rather than simply provide another transport option between existing towns. If the industrial projects along the route develop as planned, the port could increasingly function as the maritime end of a dedicated southern production corridor rather than as an infrastructure asset waiting for sufficient inland cargo to emerge.
The western end of the line has also become more economically relevant because Tanzania is investing approximately 80.56 billion, Tanzanian shillings, in the development of Mbamba Bay Port on Lake Nyasa.
During an inspection of the project in 2026, Mbarawa said the government wanted Mbamba Bay to become “a centre of trade, transport and economic activity” around the lake, with benefits extending to farmers, fishing communities and businesses.
Connecting that port to Mtwara by rail would create an east to west multimodal route linking the Indian Ocean with Lake Nyasa and potentially giving parts of Malawi and surrounding areas another path to international markets.
The regional argument, however, should not be overstated. Malawi already has access to Mozambican corridors through Nacala and Beira, while Zambia can move cargo through Dar es Salaam, Lobito, Beira and routes towards Southern African ports.
The Mtwara corridor would therefore have to win cargo commercially rather than simply exist geographically.
Freight owners will compare transport tariffs, border processing, reliability, turnaround time, storage, customs efficiency and access to shipping services.
A regional corridor becomes important when businesses choose it repeatedly because it is cheaper or more reliable than the alternatives, not because policy documents identify neighbouring countries as potential beneficiaries.
The Financing Model Matters as Much as the Engineering
The project’s financing will probably prove more difficult than its engineering.
Earlier African Union and regional infrastructure documents have attached multibillion dollar estimates to different versions of the Southern Corridor Railway, although those older numbers should not be treated as current project costs because the alignment, scope, construction prices and financing environment have changed substantially.
What remains clear is that a railway of approximately 1,000 kilometres would require an amount of capital large enough to compete with Tanzania’s other major infrastructure priorities, including the central SGR, roads, ports, airports and energy projects.
Government has repeatedly discussed the Mtwara railway in the context of public private partnership financing, which is understandable given the fiscal implications of constructing the entire corridor directly from the budget.
But PPP financing only changes who initially provides the capital; it does not eliminate the need for the project to generate economic returns.
Private investors and lenders would still require predictable revenues, credible government obligations where applicable, acceptable construction risk and confidence that the freight forecasts supporting the project are realistic.
This is why the railway’s industrial users may eventually become as important to financing as government itself. Long term transport commitments from mines, steel plants, agricultural exporters or major regional shippers could provide the revenue visibility needed to support project debt.
There may also be a strong case for phasing construction around the sections with the clearest cargo economics rather than treating all 1,000 kilometres as one indivisible investment.
If the strongest near term freight demand is concentrated between specific mineral areas and Mtwara, those sections could potentially be prioritised while the wider route develops alongside Mbamba Bay and regional trade.
The feasibility work should therefore examine not only whether the entire corridor produces a positive economic return over several decades, but whether parts of it can begin operating earlier and generate freight revenues while the rest of the network is completed.
Arab Contractors’ presence has attracted attention because the Egyptian state owned company already has substantial experience in Tanzania through the Julius Nyerere Hydropower Project, where it participated in the consortium that delivered the 2,115 MW development.
That track record gives the company familiarity with large Tanzanian infrastructure projects, government institutions and complex civil works, but the present agreement should not be confused with a construction award. Arab Contractors is currently undertaking preliminary technical and financial work.
Tanzania would still need to settle the project structure, secure financing, complete the appropriate procurement processes and enter construction contracts before physical railway development could begin.
Southern Tanzania Has a Stronger Case Than It Did a Decade Ago
The case for revisiting the railway in 2026 is stronger than it was when earlier feasibility work was being undertaken because the surrounding investment environment has changed.
Tanzania has accumulated more experience delivering major railway and energy projects, Mtwara Port has continued to develop, Mbamba Bay is under construction, Mchuchuma and Liganga have returned to active government planning and the country is placing greater emphasis on industrialisation, mineral value addition and regional transport corridors.
President Samia Suluhu Hassan has also repeatedly presented the 1,000 kilometre Mtwara to Mbamba Bay railway as part of a wider plan to open the southern regions through coordinated investment in roads, railways, ports and airports.
The strongest argument for the railway is therefore not that southern Tanzania lacks infrastructure and deserves more of it, although that is politically relevant.
The stronger economic argument is that the region contains natural resources, agricultural production, ports and potential industrial projects whose value is constrained partly by the cost of moving large quantities of goods.
Transport infrastructure can change what becomes commercially possible.
A mine that is uneconomic when ore must travel hundreds of kilometres by truck may become viable when connected to heavy rail. Agricultural processing may locate closer to production when logistics improve.
Warehousing, logistics services and industrial estates can develop along a corridor once freight becomes predictable enough to support them.
This is how infrastructure can alter regional economic geography, but only when the investments around it develop together.
Tanzania has spent decades discussing the potential of southern resources individually: natural gas in Mtwara and Lindi, coal at Mchuchuma, iron ore at Liganga, agriculture in Ruvuma and Njombe, Mtwara Port on the Indian Ocean and Mbamba Bay on Lake Nyasa.
The railway offers a framework for treating these not as separate development projects but as parts of one corridor through which production, processing and trade can reinforce each other.
That is also why the history of delay matters. Mchuchuma and Liganga have appeared in national development discussions for many years without reaching the production scales originally anticipated. The railway itself has been studied before without construction beginning.
A new memorandum and another feasibility exercise therefore deserve scrutiny rather than automatic celebration.
Tanzania’s challenge is no longer to demonstrate that southern Tanzania has resources or that railways can support industrial development.
It is to convert a long-established strategic concept into contracts, financing, mines, factories and freight.
What this means
The October agreement with Arab Contractors should be read as an attempt to rebuild the commercial case for the Southern Corridor around present economic conditions rather than as the beginning of railway construction.
Tanzania already knows where it wants the line to go and has previously undertaken feasibility and preliminary design work. What it still needs to establish is whether the industrial projects and regional trade expected to support the railway are now sufficiently credible to justify committing several billion dollars to heavy transport infrastructure.
The answer will depend less on engineering than on production.
If Mchuchuma begins producing millions of tonnes of coal, Liganga develops into a major iron and steel complex, Mbamba Bay attracts meaningful lake traffic and Mtwara captures additional industrial and regional cargo, the railway could become the transport spine of a southern economic corridor whose impact would extend well beyond rail revenues.
It could reduce the logistics cost of mineral development, give Mtwara a much larger hinterland, create an alternative route towards Lake Nyasa and support investment in processing industries whose economics are currently weakened by transport constraints.
If those anchor projects continue to move slowly, the railway faces the opposite problem: Tanzania could possess a strategically attractive corridor without enough immediate freight to justify the capital required to build it.
That is why Mbarawa’s insistence on determining real transport demand deserves more attention than the ceremony surrounding the memorandum.
The number that will ultimately determine the future of the project is not 1,000 kilometres. It is the number of tonnes of coal, ore, steel, agricultural produce and regional cargo that can be moved over those kilometres every year at prices customers are willing to pay.
The Southern Corridor has existed on maps for years. The task now is to prove that the economy around it is finally becoming large enough to move from the map to the railway.