Drinks company Britvic says it wants to close its Norwich factory with the loss of 240 jobs.
Production of Robinsons squash and Fruit Shoot drinks will move to sites in East London, Leeds and Rugby.
Britvic says the move will affect 242 workers at its Norwich site at Carrow Works.
The company says the closure - due in 2019 - will boost efficiency. It says every worker will be either offered jobs at other sites or given help to find other work.
It says its an upsetting decision and has not been taken lightly.
Britvic shares the former Colman's site in Norwich with Unilever.
Britvic says no decisions will be made before full consultation with employees and it'll be giving workers as much support as possible in what will be a difficult time.
Britvic is one of the leading soft drinks businesses in Europe. The company combines its own leading brand portfolio including Robinsons, Tango, J2O, Fruit Shoot, Teisseire and MiWadi with PepsiCo brands such as Pepsi, 7UP and Lipton Ice Tea which Britvic produces and sells in GB and Ireland under exclusive PepsiCo agreements.