The Royal Mail has announced plans to close its Guildford distribution centre in Surrey.
The closure is part of the Royal Mail's restructuring plans
Just over 250 employees have been given the option of moving to another job or taking voluntary redundancy.
The Royal Mail said the closure of the branch, which caters for the southern Home Counties, is part of the company's restructuring plans.
They are hoping the closure will help the company make savings following losses of £1.2bn last year.
But Union representative Andy Straker has said he is concerned for the future of the workers at the branch.
He said: "We are not convinced that the closures are actually the correct course of action to be taken.
"There are over 250 people working there although some of those are drivers, so of the actual indoor function that is due to go in early 2004 where will all those people go?
"Certainly there are not 200 vacancies within the Royal Mail within the GU area."