The shipowner said the vessels impacted were eight ‘eco’ tankers on order at Guangzhou Shipyard International (GSI).

It added that the changes had been made after discussions with the Chinese shipbuilder, but it gave no further details.

“The GSI vessels will now be expected to deliver between May 2016 and April 2017, which is adjusted from the original delivery period of October 2015 to December 2016,” Navig8 said.

But