The port's container throughput increased 30 per cent year on year and 8.3 per cent month on month to 67,500 TEU in May, another record high after April.
Overall cargo volume in the month went up 11.5 per cent year on year and 5.9 per cent month on month to 18.67 million tonnes.
From January to May, its overall cargo throughput climbed 10.5 per cent year on year to 88.32 million tonnes.
Rebuilt in 1956, it was the first modern port designed and developed after the founding of the People's Republic of China and serves as the headquarters for the People's Liberation Army Navy's South Sea Fleet.