The legal saga surrounding the port of Longoni has reached its conclusion: France's Conseil d'État has rejected the appeal by Mayotte Channel Gateway (MCG), definitively confirming the end of the port concession on 1 September 2026. In 38 days, the only deep-water port infrastructure in Mayotte will change hands.
From Revocation to a Public Authority
The process began when Mayotte's administrative tribunal revoked MCG's concession for serious breaches of contract. After a lengthy legal process, the administrative court of appeal upheld the termination, and the Conseil d'État has now closed the debate by rejecting MCG's final application. Meanwhile, Mayotte's assembly voted on 17 June 2026 to create a public port authority tasked with taking over operations from 1 September.
A Critical Economic Issue
The port of Longoni is no ordinary infrastructure for Mayotte: it is the territory's only deep-water port, and the essential entry point for food imports, building materials, hydrocarbons and consumer goods. Any disruption to port supply chains immediately affects consumer prices and product availability across the island.
Why It Matters
Creating a public authority is the institutional response chosen by Mayotte's elected officials. But this decision has not resolved all uncertainties: financing, governance and operational transfer of skills remain challenges ahead. Local economic players — shipping companies and importers foremost — are now waiting for concrete guarantees on operational continuity beyond 1 September.
For Indian Ocean regional operators, the episode highlights a broader issue: the fragility of strategic infrastructure in island territories and the need to anticipate port management models before crises impose themselves.