According to the Dalian Maritime Safety Administration that on May 31, the "Lvantong" ship successfully set sail from Yantai Port in Shandong Province with new energy vehicles and successfully arrived at Dalian Port in Liaoning Province, and completed its return voyage on June 1, marking a major breakthrough in the problem of new energy vehicles crossing the sea in Bohai Bay.

According to the Dalian Maritime Safety Administration, together with the Transportation Bureau, Dalian Maritime University and other forces, conducted in-depth consultation and systematic evaluation of the "New Energy Vehicle Port Ro-Ro Operation Procedures" and the "New Energy Vehicle Port Operation Safety Condition Assessment Report". The service ship went online smoothly. During the voyage, relying on the intelligent maritime supervision system, the sailing ships are monitored in real time and traffic organization is accurately carried out. After arriving at Hong Kong, establish a "one ship, one policy" service file, and select a team of ship safety inspection experts to eliminate potential risks. The upgraded "Lvantong" and "Lvanda" ships can carry 132 standard new energy cars with a length of 4.9 meters and a width of 2 meters, and 100 ordinary trucks with a length of 15 meters.