Cape reroute keeps redrawing the map, one feeder port at a time

Seventeen months after Houthi attacks pushed container ships off the Suez routing, the May snapshot shows the East Africa feeder network still re-pricing itself. China → Kenya sea 40GP rose 53.9% month-over-month to a $3,150-$3,850 range — the largest single move in the spotlight pool and the clearest signal yet that what began as an emergency detour is now the standing operating assumption.

Mombasa carries roughly 80% of the containerised volume bound for the Great Lakes hinterland — Uganda, Rwanda, eastern DRC, South Sudan. When a vessel commits to the Cape of Good Hope routing, the entire East African feeder network re-prices to match the added 10-14 day voyage and the bunker burn that comes with it. The Kenya number is what that re-pricing looks like once carriers stop quoting it as a surcharge and start quoting it as the rate.

The clearest tell that the East Africa premium is structural rather than cyclical is what is not happening to it. Twelve-month rolling sea 40GP for Kenya has held a $1,900-$2,275 corridor since mid-2025, broken only this month by the step up to $3,500 midpoint. No carrier alliance has filed a rate restoration. No feeder operator has announced new capacity into Mombasa or Dar es Salaam. The pricing is steady because the routing is steady — and the routing is steady because Bab el-Mandeb is not.

The Trans-Caspian rail story is the quieter version of the same dynamic. Kazakhstan held a 7% month-over-month rise and Uzbekistan 6% — small in absolute container terms but extending a three-quarter climb that has compounded into a 62% year-on-year increase on the sea-equivalent benchmark. Volumes that used to transit Russia now route Khorgos → Aktau → Caspian ferry → Baku → Poti or Mersin. The lane is becoming a permanent backup, not a stopgap, and the freight rate reflects that institutional weight.

Operators on the corridor report that ferry capacity across the Caspian, not rail capacity inland, is the binding constraint. Until Aktau and Baku add roll-on roll-off berths, the Middle Corridor tariff has a floor under it that no European demand softness can break.

On the down side of the snapshot, the Pacific Alliance lanes cooled. Peru shed 14.2% on sea 40GP and Ecuador double digits as the post-Lunar New Year capacity that had stayed deployed on the trade unwound. The South America West Coast has been carrying surplus vessels for months; May is the first snapshot where that surplus translated cleanly into rate compression.

Watch July for the next inflection. Chancay's first scheduled deep-sea calls begin then, and the megaport is engineered to claim back share from Callao on a structural basis. The LATAM cluster repricing that follows is unlikely to be smooth — the first three months of any new gateway tend to overshoot in both directions before settling.