Sea freight between the Netherlands and Turkey runs both ways on the same Mediterranean lane, but it does not behave like a normal third-country trade. The EU and Turkey share a customs union, so most industrial goods cross the border duty-free in either direction, provided one document travels with them: the A.TR certificate. Get that right and a Rotterdam–Mersin shipment is, on the duty side, closer to an intra-EU move than to an import from China. A Mediterranean shortsea sailing runs roughly eight to fourteen days port to port.
Turkish container ports and their LOCODEs
The container gateways spread across three seaboards: the Marmara around Istanbul, the Mediterranean to the south, and the Aegean to the west.
| Port | LOCODE | Region |
|---|---|---|
| Ambarli / Istanbul | TRAMR | Marmara |
| Mersin | TRMER | Mediterranean |
| Iskenderun | TRISK | Mediterranean (east) |
| Izmir | TRIZM | Aegean |
| Aliaga | TRALI | Aegean |
| Gemlik | TRGEM | Marmara |
| Evyap / Kocaeli | TREYP | Marmara (Izmit gulf) |
Ambarli is the country's largest port by container volume and the usual Marmara call near Istanbul; Mersin is the largest on the Mediterranean coast and the gateway for central Anatolia. Which port fits depends on where the cargo sits in Turkey, not on a default.
The customs union: why you usually pay no duty
This is the point that makes Turkey different. Under the EU–Turkey customs union, industrial and processed-agricultural goods in free circulation move duty-free in both directions. Free circulation means the goods were either made in the union or already imported into it and cleared, with any third-country duty paid. The proof is the A.TR movement certificate, and it certifies that free-circulation status, not where the goods originated.
So the A.TR is not an origin certificate. A washing machine assembled in Turkey from imported parts can still travel on an A.TR, because what matters is that it is in free circulation, not that it is "of Turkish origin". That is exactly why the A.TR sits apart from the EUR.1 origin route, and the distinction is set out on Preferential Origin and Customs Value.
Two categories fall outside the customs union and do not use an A.TR: wholly agricultural products and coal and steel. Those follow preferential origin under the separate EU–Turkey arrangements, with a EUR.1 proving origin in the usual way. If your goods are in those baskets, the customs-union shortcut does not apply and you are back to the origin rules.
Exporting to Turkey: the A.TR and the declaration
Exporting from the Netherlands, you make out an A.TR for the industrial goods so your Turkish buyer can clear them duty-free. Alongside it runs the EU export side. Turkey is a party to the Common Transit Convention (since 1 December 2012), which sits next to the customs union, so the movement is handled under common/union transit rather than a plain third-country export filing. The declaration mechanics, and when an EX-A versus a common-transit document applies, are on Export Declaration Types. The practical rule: the A.TR carries the duty relief, the transit/export declaration carries the customs formality, and they are not the same document.
Importing from Turkey: A.TR at clearance, ENS under ICS2
Importing into the Netherlands, you present the A.TR with your import declaration and the industrial goods clear without third-country import duty. Import VAT is still due, because the customs union removes duty, not VAT; how the VAT base is built sits on Customs Value, and the full inbound chain on Importing Into The Netherlands.
Turkey is outside the EU customs territory for security purposes, so the advance cargo-security step still applies: an ENS (Entry Summary Declaration) under ICS2 before the goods load at the Turkish port. The customs union does not exempt you from that. ICS2 itself is covered on Customs It Systems. In short, the duty disappears but the security filing does not.
Who sails the lane
The Netherlands–Turkey trade is a Mediterranean run, served by the deep-sea lines on their Europe–Med rotations and by shortsea operators feeding the Marmara, Aegean and Mediterranean ports. Many boxes transship through a Mediterranean hub rather than sailing direct, which is what stretches the transit. The booking carrier owns your bill of lading whichever vessel actually carries the container; for the carrier and alliance picture see Container Shipping Lines.
Transit time, each way
Count on roughly eight to fourteen days port to port for a Mediterranean shortsea service, with direct strings at the short end and transshipment through a hub adding days at the long end. Inbound from Turkey to Rotterdam runs in a similar band, but it is a different service with its own rotation, not a mirror of the export leg, so plan the import on its own timetable. Schedules on this lane shift more than on the deep-sea trades; treat these as planning ranges.
Common mistakes
- Treating the A.TR as an origin certificate and reaching for a EUR.1 when the goods are industrial and in free circulation, or the reverse for agricultural and coal/steel goods.
- Assuming "customs union" means no formalities at all, and skipping the ENS under ICS2 on import.
- Letting the A.TR expire or travel unvalidated, so the duty relief is refused at clearance and you pay the third-country rate.
- Defaulting to one Turkish port instead of the one nearest the cargo.
How Nexport Logistics handles it
Exporting, we book the Mediterranean sailing, make out and validate the A.TR for the industrial goods, sort the export and transit declaration, and build the B/L. Importing, we arrange the carrier, file the ENS under ICS2, present the A.TR at clearance so industrial goods come in duty-free, and settle the import VAT. Either way you follow the shipment in the Nexportal portal. Shipping a container to or from Turkey, and want the customs-union relief applied cleanly? Email info@nexportlogistics.nl.
Related: Preferential Origin · Customs Value · Importing Into The Netherlands · Container Shipping Lines · Export Declaration Types · Incoterms