Niger's principal import route through Cotonou closed with the Malanville bridge in July 2023 and has stayed closed. Traffic rerouted to Lomé and other ports at higher cost, public revenue fell by a reported figure no second source confirms, and the oil pipeline to Benin kept running.
Written for geopolitical-risk and economic-exposure work: it traces a mechanism, not a market view.
How to read the grades
- Confirmed Documented as having occurred, with sources.
- Plausible exposure A mechanism Vigil assesses as likely; not documented as having occurred.
- Unconfirmed scenario Named because it is worth watching. Not asserted.
A step can never be graded more firmly than the step it depends on: a consequence cannot be better established than its cause. That rule is enforced when this site is built, not applied by hand — a chain that broke it would fail the build rather than publish.
- Trigger
The Niger–Benin border closure since July 2023
- Affected asset, route or regionConfirmed
Before 2023 between 70 and 80 per cent of Niger's imports passed through the Port of Cotonou and up the Cotonou–Niamey corridor, and Nigerien cargo was around 80 per cent of that port's transit volume — a mutual dependence built on the shortest route from a landlocked capital to the sea.
Documented as having occurred, with sources.
- Operational disruptionConfirmed
The Malanville–Gaya bridge closed in July 2023 with the ECOWAS measures that followed the coup; Benin suspended transit from August to December 2023; and the crossing has stayed shut through the AES states' exit from ECOWAS in January 2025 and the disputes over the pipeline that followed. Traffic redirected to Lomé, Abidjan, Dakar and Nouakchott, and Lomé handled 2.06 million TEU in 2024 with 92 per cent of its transit traffic bound for AES states.
Documented as having occurred, with sources.
- Exposed sector or commodityConfirmed
Longer routes and border formalities raise the landed cost of fuel, food and construction inputs in an economy that imports almost all of each; the state is reported to have lost 117 billion CFA francs in public revenue to the closure, a single-source figure. The Niger–Benin oil pipeline to the Sème-Kpodji terminal has operated intermittently throughout, because export revenue is the one flow neither government gains by cutting — the clearest sign that the rupture is political and the dependence is not.
Documented as having occurred, with sources.
- Broader economic significancePlausible exposure
A state fighting a war in its west on a uranium export it is selling in defiance of an arbitral order, with its cheapest import route closed by its own regional rupture, faces a fiscal squeeze from both ends: higher import costs and lower customs revenue against security spending that the August 2026 mutiny suggests is not reaching the garrisons. That is a mechanism the reported facts support, not a documented outcome; Niger's public accounts for the closure period are not published in a form that would confirm it.
A mechanism Vigil assesses as likely; not documented as having occurred.
Sectors and commodities exposed
Named as plain labels rather than a controlled vocabulary, so this list cannot drift from the commodity names the module's economy section already uses.
What remains unknown
- The revenue-loss figure rests on one source and is carried as reported.
- Landed-cost increases are inferred from route lengths and reporting on prices; no series is published.
- Niger's fiscal accounts for the closure period are not available, which is why the final step is graded plausible.
Readings the evidence also supports
- Price and revenue pressure in this period also reflects the ECOWAS sanctions of 2023–24, the wider regional freight market and the war in the west; the closure is a dominant reported driver and not the sole one.
Listed because the record's own assessment is not the only one its sources permit — not as a hedge on the assessment above.
Reopening of the Malanville crossing
The one reversal both governments would gain from; neither has made it, and the AES exit from ECOWAS removed the framework a reopening would have run through.
Pipeline interruptions
Whether the intermittent operation of the Sème-Kpodji line hardens into a stoppage, which would convert a political rupture into a fiscal one.
Watch questions this chain bears on
Standing analytical questions whose evidence runs through this chain, each with its latest review. Derived from the Watch object, never restated here.
Open in Explore Interactive: select this record and follow what connects to it.
Assessed as of — 2026-08 Last reviewed — 2026-09-14