Putin has made a concession to China: for the first time, Russia has agreed to a standard-gauge railway line—1,435 millimeters—extending from Manzhouli into Ulan-Ude, with the State Duma passing the Sino-Russian cross-border rail second-line agreement unanimously. For the first time, China’s standard gauge is formally recognized within Russian territory through legislation.

Though the stretch in question spans only a few kilometers at the border terminal, the Russian side completed the full procedural cycle—including government decree, treaty signing, and parliamentary review—over nearly eight months. Further steps remain, including ratification by the Federation Council and presidential signature. The fact that a project covering just several kilometers was processed under the same rigorous framework as an international treaty speaks volumes.

The core issue lies in the 85-millimeter discrepancy. China uses standard gauge (1,435 mm), while Russia employs broad gauge (1,520 mm). Trains cannot directly cross the border, requiring cargo to be transshipped at the frontier. On the existing Manzhouli–Zabaikalsk route, only one standard-gauge track exists; freight trains alternate between heavy outbound and empty return movements on the same line, causing congestion lasting up to ten or fifteen days during peak seasons. The new line will allow loaded and empty trains to operate on separate tracks, transforming transshipment from a stop-and-go process into a continuous flow.

Why did Moscow agree? The economic logic is clear. This crossing handles over 60 percent of land-based trade between China and Russia. In the first eight months of this year, the number of China-Europe freight trains reached 4,019—an upward trend. With western transit routes effectively blocked due to sanctions, Russian Railways faces debt nearing 4 trillion rubles. Trade between the Far East and China has grown nearly 2.5 times over recent years. Transport capacity is no longer a luxury but a necessity. The 85-millimeter gap has thus shifted from a symbolic barrier to a practical impediment.

Yet this should not be interpreted as “China’s gauge entering Moscow.” The broad-gauge framework remains intact beyond the cross-border section, where 1,520 mm continues to dominate. What has changed is the operational logic at the border: reduced dwell time for shippers, increased throughput for Russia, and greater control over transit routes for China. A century-old gauge standard yielded by just one millimeter—not out of goodwill, but because China holds tangible leverage: cargo volumes, industrial output, and scheduled train services.

Original source: toutiao.com/article/1879535086918723/

Disclaimer: The views expressed in this article are those of the author alone.