The logistics corridor through Kazakhstan is experiencing unprecedented growth. In 2025, Chinese cargo transit through the country reached a record 20.2 million gross tons, up 32% from the previous year and the highest level recorded in at least 13 years.
According to Data Hub, the upward trend has continued for four consecutive years, with transit volumes increasing by an average of 31% annually. Analysts attribute the growth not only to shifting trade routes driven by geopolitical developments but also to infrastructure upgrades within Kazakhstan.
One key factor was the launch of the second track on the Dostyk-Moiynty railway line in 2025. The project increased the route’s capacity fivefold, from 12 to 60 pairs of trains per day.
Iran drives growth in southern routes
Iran accounted for the largest share of transit growth in 2025. Cargo shipments from China to Iran via Kazakhstan surged from just 5,200 tons in 2024 to 2.1 million tons in 2025, representing 44% of total growth.
Kazakhstan also recorded strong gains, with transit volumes rising 30%, while Uzbekistan posted a 25% increase.
At the same time, several traditional destinations saw declines. Russia reduced overall annual growth by 11 percentage points, while Poland lowered it by 2 percentage points.
Uzbekistan remains the largest destination
By cargo weight, the distribution of Chinese transit through Kazakhstan in 2025 was as follows:
- Uzbekistan remained the largest destination, accounting for nearly one-third of total transit volume, or 6.5 million tons.
- Kazakhstan, including consolidated cargo destined for Kazakhstan and third countries, represented about 20% of the total, or 4 million tons.
- Russia retained a 15% share despite declining volumes, receiving 3 million tons.
- Iran captured 11% of total transit volume, or 2.1 million tons, following its sharp increase.
- Poland accounted for 8%, or 1.6 million tons.
- Tajikistan and Belarus each represented about 3%, with roughly 600,000 tons apiece.
The rapid expansion of southern trade corridors has coincided with a slowdown in northern and European routes.
