Wan Hai Lines, the Taiwan-listed box carrier focused on intra-Asia trades, has announced it will not exercise options to build four extra feeder vessels at Huangpu Wenchong Shipbuilding.

Last November, Wan Hai signed a deal to construct 12 firm 2,038-teu ships and four optional ones at Huangpu Wenchong — part of China State Shipbuilding Corp — for $26.3m apiece.

However, the company said in an exchange filing on Monday that the option would not be picked up.