Chinese tonnage provider Shanghai Changshun Shipping has added four more 6，150 teu containerships at Yangzhou Guoyu Shipbuilding， taking the series at the yard to 10 vessels.

Splash understands the latest signing covers the four options attached to a contract agreed in May for six firm ships and four optional units. Financial terms have not been disclosed， although market reports priced the original programme at around $70m per vessel.

Shanghai Changshun also has six 4，800 teu ships on order at Guoyu， taking the owner’s firm containership pipeline at the yard to 16 vessels. The first two 4，800 teu newbuildings are expected this year， with the remaining four scheduled for 2027.

The new 6，150 teu vessels will be the largest ships in Shanghai Changshun’s fleet. Clarksons data shows the company currently owns six vessels， comprising two 2，838 teu boxships， two ultramax bulkers and two handymaxes.

Guoyu also recently signed two further 6，150 teu containerships with Changhong International Logistics， along with two 5，700 ceu car carriers for Hainan Yanggang Hechuang Shipping. The PCTC deal marks the restructured yard’s first move into car carrier construction and will be carried out with Yangfan Group.