Cadbury workers and members of the public are expected to take part in a march and rally in a bid to stop the closure of a chocolate factory.
A protest was held at the Cadbury factory, Bournville last week
Staff from the Somerdale factory in Keynsham, near Bristol, will lead their latest protest, in the town, over plans to move production to Poland.
Hundreds of jobs are threatened under the proposal, which unions have described as environmentally unsound.
Cadbury also plans to restructure its Bournville plant in Birmingham.
Up to 500 jobs are set to be axed at the Keynsham site and a further 200 at Bournville.
Production of Fudge and Crunchie bars are to be moved to Poland.
Last week staff from Somerdale joined their colleagues outside the Birmingham factory to protest about the plans.
The Unite union has said Cadbury bosses needed to know their workers and consumers oppose the job losses and the "environmental havoc" of transferring work to Poland.
National officer Brian Revell said: "This decision has been driven by short-term profit gain and we will send a strong message from this march to the board of Cadbury that they must rethink this reckless plan.
"Not only is it environmentally unsound and commercially questionable, but it will devastate the local community. We urge the board to listen to the hundreds of voices opposed to this closure."
Sites at Chirk, Wales, and Marlbrook, Herefordshire, will be unaffected.