It was reported that solemn putting into operation of NIBULON-5 tug and launching of NIBULON-6 will be held on the same day in July. Launching of the series of shallow-draught tugs of POSS-121 project is also planed on that day. 
 NIBULON-5 (total readiness is 82 %):
1. Assembly and pipeline area: towing winch assembly has been started; fire-fighting and fuel systems have been put into operation; there has been started pipeline flushing of the fuel system. There is being continued production and assembly of pipes of heating system, fresh process water system, compressed air system.
2. ISD representatives continue to install panel plating in the living sector of the vessel. Insulation work of pipeline of gas exhaust and sanitary systems has been started.
3. Area of mechanical and fitter’s parts: production and assembly of ventilation pipes in the engine room are being continued; equipment in the machine workshop is being produced and installed.
4. Electrical area: the main switchboard has received power supply; the navigator console has been installed in the pilot house; cables are being powered up; Berg rudder-propeller and Mitsubishi main engines are being powered up.
5. Specialists of the painting area are carrying out final painting of ready spaces.
6. On the vessel there are being conducted preparatory works to start up auxiliary diesel-generators. 
 NIBULON-6 (total readiness is 42 %):
1. Main equipment and deck section have already been installed in the engine room.
2. Formation of the navigation room parts is being completed (upper aluminium part and lower steel part). 
3. Priming of the vessel’s hull has been completed; intermediate paint coats will be applied.
4. Bottom and on-board equipment, sea chests are being prepared for assembly and testing.
5. Preparatory works are being carried out on the vessel to be launched.