Dignitaries gather on Chinese side of the pipeline to witness the formal welding of the first joint in $55billion line.
After months of speculation, parliament and President rubber-stamp deal that will see gas sent to China.
Construction launched on 3,968 kilometre 'Power of Siberia' gas pipeline.
Agreement means Power of Siberia pipe could be delayed, it is claimed.
A deal would be the biggest Chinese equity participation in onshore oil in Russia.
Going by train all the way from Beijing (or even London) to New York could become a reality.
More than 300 enterprises now have investment from China in this Far East region.
Beijing proposes tours to neighbouring Khabarovsk region which wind the clock back to the Communist era.
The aim is to develop and implement the best Siberian R&D innovations in agriculture, it was announced.