Russian Railways is expanding capacities on routes through Mongolia, including loop upgrades and parallel tracks to handle longer trains, according to available details [1].
Mongolia's recent free-trade agreement with the Eurasian Economic Union is cited as enabling lower-tariff commodity exports while supporting transit between Russia and China [1].
Partnerships are also noted with North Korea, Belarus, Central Asia, the Caucasus, and Cuba, centered on the International North-South Transport Corridor and related freight initiatives [1].
A Russian deputy prime minister has commented on exploring routes to the Indian Ocean for redundancy against chokepoint risks, a shift described in the reporting as moving beyond sanctions avoidance [1].
These developments are presented as early-stage and require further corroboration from additional sources before being treated as settled.