A Transshipment Port is a strategic port facility that functions as an intermediate hub in global shipping, where cargo is transferred from one vessel or mode of transport to another on its journey to the final destination. It is a concept and an institution central to the logistics of international commerce. The concept traces its roots to ancient trade routes, where strategic ports like Alexandria and Malacca served as early cargo redistribution centers. The modern transshipment port emerged to solve the problem of a lack of direct shipping routes between all ports and to allow shipping lines to optimize routes and achieve cost efficiency by consolidating cargo.
The mechanism works by utilizing a hub-and-spoke system, where large deep-sea vessels (mother vessels) offload cargo at the transshipment hub, and smaller feeder vessels then transport the cargo to its final destination port. This process involves the cargo being unloaded, temporarily stored, and then reloaded onto a different vessel, often remaining in the same container (sea-to-sea transshipment). The primary rationale is to enhance the efficiency and geographical reach of maritime networks, as direct services cannot be established between every port.
Informed readers should know that nearly 75% of India's transshipment cargo is currently handled at ports outside the country, primarily at Colombo, Singapore, and Port Klang. This connects to the Indian government's push to develop domestic transshipment hubs, such as the International Container Transshipment Terminal (ICTT) at Vallarpadam, Cochin, and the proposed terminal at Galathea Bay in the Great Nicobar Islands. A key change was the easing of India's cabotage rules in 2018, which allowed foreign-flagged container ships to carry export-import (EXIM) laden containers for transshipment between Indian ports without a license, though this did not significantly improve the Vallarpadam ICTT's fortunes. More recently, in April 2025, India rescinded the 2020 circular (Circular No. 29/2020) that had facilitated the transshipment of Bangladeshi export cargo through Indian Land Customs Stations to Indian ports, citing significant congestion.