Peel Ports will not be drawn on possible job losses as speculation grows that Capespan is set to quit the docks.

When questioned by the Times Guardian, the firm would only say the introduction of wind-turbine manufacturer Vestas would “create more jobs in the area not replace them”.

It also said it was making every effort to retain all of its customers and discussions are ongoing, but it accepts there will be uncertainty over the next 18 months which will “create activity outside its control”.

When asked directly about Capespan, a spokesman said Peel is not in a position to discuss its customers’ business.

Peel Ports Medway managing director Paul Kavanagh said: “Every effort is being made to retain all of our customers and commercial discussions remain ongoing and are of a confidential nature.

“There has been a fundamental change in our fresh produce business over the years, with a particular sharp decline in volumes across the quay.

“Our focus is to continue to work with our customers in what is a very challenging market place.

“We have an excellent workforce providing a first-class service to our customers, and we are confident of meeting the challenges ahead.”

Bertrand de Techtermann, automotive director for Gefco UK, which is also based at the port, said it was aware of the proposal to develop land at the port, including some which is currently used for car compounds.

He said: “Sheerness is a major deep-water port with around 260 acres of car compound areas and a range of other business uses.

“It is normal for new companies to join the mix of operations.

“We are aware of the proposal to develop land at this port that includes some land currently used as car compounds. We will naturally discuss this proposal in detail with port authorities.”

Gefco’s head of business support Peter Nawrat added: “We are currently discussing options with Peel Port authorities on what, if any, impact the proposal will have on our operations.

“We expect to have further clarity in September.”