Affinity Shipping founder Richard Fulford-Smith has come out strongly against the UK leaving the European Union in a so called Brexit.
Speaking at the TradeWinds Shipowner Forum at Posidonia, Fulford-Smith questioned those seeking to vote leave in the 23 June referendum.
"I'm absolutely appalled the people in our country think it's a good idea to break up one of the world's greatest trading blocks, by inviting the UK to exit it, which could trigger other problems for Europe," he said.
"I'm really sorry about our prime minister, what was he thinking about inviting that problem?"
As TradeWinds has reported, a host of shipping executives have voiced their support for the UK remaining in the EU, while Quentin Soanes of Sterling Shipping has spoken out in favour of Brexit.
On the shipping markets Fulford-Smith said some have probably reached the bottom.
"We are at the bottom of the cycle so we talk on a more negative basis. We come here, it's sunny so we talk on a more positive note," he told the Athens event.