Legacy Logistics: Galaxy connected, locally invested.
Aerokor is big. Not the biggest space transport company, but it is typically Russian. It owns it own mines, space stations, tugs, surface transport, refining etc. The vast majority of its produce either goes to its part of the Mars colonies or back to Russia.
The space stations and transport ships are of a different design and technology to all the competitors. Most view them as antiquated and crude. However they work, are robust and much cheaper than the alternatives.