Ship on the map:

Tong Heng
IMO: 9609316 MMSI: 412303150 Type: Hopper Dredger
Tongyuan
IMO: 9638197 MMSI: 412303160 Type: Hopper Dredger
SIBIR
IMO: 9774422 MMSI: 273292320 Type: Nuclear Icebreaker
total vessels: 3