What is the International North–South Transport Corridor (INSTC)?

What does INSTC stand for?

The International North–South Transport Corridor, INSTC for short, is a multimodal network designed to carry cargo between the Indian Ocean and Russia and Northern Europe via Iran. According to the Turkish Ministry of Trade's assessment of the corridor, the network links Mumbai in India via Iranian ports and railways all the way to Finland and is about 7,200 km long. Multimodal transport means that a single shipment is completed by more than one mode of transport, such as ship, train and truck; the distinction between the terms is explained in multimodal and intermodal transport.

Who founded the corridor and which countries take part?

• 2000–2002: Russia, Iran and India laid the foundations of the project.
• Following years: other countries joined, including Armenia, Azerbaijan, Kazakhstan, Belarus, Tajikistan and Turkmenistan.
• January 2018: the first cargo was sent from India to Russia via the port of Bandar Abbas.
• 6 March 2019: 12 countries besides Iran and India attended a conference held to coordinate the corridor; Turkey was among the participants.

What are the corridor's branches and its missing link?

For the Rasht–Astara line, Russia's Energy Minister announced in February 2026 that the implementation phase would begin on 1 April 2026; for this reason the line is still referred to in sources as a planned link. According to TASS, once complete the line is intended to give Russia uninterrupted rail access to ports on the Persian Gulf.

How does Turkey connect to the corridor?

Turkey is not one of the corridor's founding countries, but it connects to Iran's road network through the Gürbulak–Bazargan gate. The Turkish Ministry of Trade also describes the corridor, from Iran's perspective, as one of the shortest links to Europe and Turkey. In practice two uses stand out:

• Cargo from Turkey to Iran and onwards via Iran to Central Asia; this direction is covered in road freight from Turkey to Central Asia.
• Cargo from Russia that crosses Iranian territory under customs transit and arrives in Turkey; this model is discussed in Russia to Turkey transit via Iran.

What should be considered when using the corridor?

• Transit document: according to UN records, Russia, Iran and Turkey are parties to the TIR Convention, and India acceded on 15 June 2017. The road leg can therefore be run under a TIR carnet.
• Transhipment points: in a multimodal shipment, every port or station means separate handling, separate documents and a transfer of responsibility; the limits of liability are set out in the contract of carriage.
• Document consistency: the description of goods, weight and number of packages on the invoice, packing list and CMR must stay identical at every transhipment point; any mismatch means a separate check at each border.
• Sanctions regimes: UN, EU and US sanctions regimes apply to Iran; the eligibility of the cargo and the parties is checked by the shipper and the consignee against official sources. A neutral overview is in sanctions responsibility.
• Transit time: there is no single transit time for the corridor as a whole; the mode, the number of transhipments and border congestion are decisive.

How road transit from Russia via Iran to Turkey works in practice is described on the Russia–Iran–Turkey transit lane page.

Published: 21.10.2026 · Voltim Global