Ningbo Port plans to tighten its partnership with rival Shanghai after Ningbo Port's initial public offering on the Shanghai Stock Exchange on September 14, reported the South China Morning Post.

The two neighbouring ports in the Yangtze River Delta are the world's two largest ports by cargo tonnage.

Ningbo Port has received approval from the China Securities Regulatory Commission to issue 2.5 billion A shares on the Shanghai exchange, from which the state-owned port operator hopes to raise at least US$1.92 billion.