Maritime and other transport

Data insights

International freight transport is the lifeblood of global trade, facilitating the movement of goods over land and across oceans and connecting economies worldwide. As the most cost-effective and efficient mode of transport for large-scale cargo, maritime transport plays a pivotal role in sustaining global commerce. This collection of thematic insights explores key aspects of international freight transport, providing a detailed look at its vital components.

China discharges the most seaborne cargo; Australia loads the most

Tonnage loaded and discharged, millions of tons (SDG 9.1.2), 2024

UN Trade and Development, UNCTADstat.

Reported as Sustainable Development Goal Indicator 9.1.2: "Freight loaded and unloaded, maritime transport (metric tons)".

In 2024, China remained the world’s leading maritime‑freight economy, loading around 670 million metric tons and discharging close to 3.0 billion metric tons—equivalent to 6% of global loading volume and 25% of global discharging volume, respectively. However, Australia, the United States of America, United States, Brazil, the Russian Federation and Indonesia each loaded more cargo for international maritime transport than China.

China, Australia and the United States of America have ranked as the top three economies in total seaborne trade (loaded and discharged) over the last fifteen years.

Data updated on 17 Mar 2026

Maritime trade volumes have been levelling out

Goods loaded worldwide, billions of tons

UN Trade and Development, UNCTADstat.

In 2024, 12.1 billion metric tons of goods were loaded for international maritime trade worldwide, an increase of 3.9% from 2023. This represents robust growth, exceeding the average since 2000 and clearly outperforming the more uneven trends observed since 2018.
 

Data updated on 17 Mar 2026

Heavy goods shipped to developing economies have increased over the last two decades

Seaborne trade volume of developing economies, percentage of corresponding world tonnage

UN Trade and Development, UNCTADstat.

Over the last quarter-century, the role of developing economies in international seaborne trade has increased. While the share of goods loaded onto ships in developing economies has remained relatively stable between 47% and 51%, developing economies have increasingly become destinations for internationally traded heavy goods and transported by sea. This trend reflects increased flows of raw materials and industrial inputs into developing economies. Whereas only 27% of global seaborne trade was discharged in developing economies at the beginning of the century, by 2024 this share had risen to 58%.

Data updated on 17 Mar 2026

Developing economies’ seaborne imports exceeded exports by almost a billion tons in 2024

Difference between volume loaded and volume discharged for seaborne trade, millions of tons

UN Trade and Development, UNCTADstat.

"Volume discharged" refers to imports of internationally traded goods transported by sea, while "volume loaded" refers to exports. The difference represents the net imbalance in volume.

Overall, ships carrying internationally traded goods to developing economies departed with 964 million metric tons less cargo than they had carried on arrival. The opposite was true for developed economies. Although this imbalance was slightly less pronounced in 2024 than in 2020, it remained considerably larger than in 2015.

Large shipments of dry cargo, including both bulk and containerized goods, have driven seaborne imports into developing economies to outpace their exports. This trend is particularly pronounced in Asia.

Data updated on 17 Mar 2026

Metadata

Goods loaded for international shipment represent exports, while goods discharged from ships represent imports.

Dry cargo refers to cargo that is usually not carried in tankers, such as dry bulks (e.g., coal, ores, grains), pallets, bags, crates, and containers. “Other” tanker trade refers to tanker trade, excluding crude oil. It includes refined petroleum products, gas and chemicals.

For in-depth analysis on the world shipping fleet and related topics see the Review of Maritime Transport.

Full metadata are available in our Data Centre for World seaborne trade by types of cargo.