Freight forwarder Advance International says it has moved the single largest item of cargo from a Black Sea port as part of a major project freight management contract for Mitsubishi Heavy Industries (MHI).

The 312-ton shipment, consisting of an auxiliary boiler unit 13 metres long, six metres wide and 19 metres high, was loaded on the Annegret, which set sail from Constanza in Romania, setting a new record for the country.

"This was a shipment to remember for many years. In fact, I don't know if there will be a larger unit ever exported from the Black Sea in my lifetime. Eighteen months of work, preparation and planning paid off with excellent results," said Advance International president and CEO Jawad Kamel.

From Constanza, the boiler moved via Italy to Oman and arrived just over four weeks after loading. It forms part of a multi-million dollar fertiliser complex being constructed by MHI at Sohar, Oman.

Advance International is the principal freight forwarder contracted by MHI to ship thousands of pieces of equipment from all over the globe used to construct the fertiliser facility, said a statement issued on behalf of Advance International.