Hundreds of striking workers from the Bakkavor food production factory in Spalding, Lincolnshire, will march to the town centre on Tuesday this week.
Unite members who have been on strike for three weeks will congregate in Spalding on Tuesday as part of an ongoing pay dispute.
Graham said: “Bakkavor continues with its tone-deaf approach to this dispute. A company that makes huge profits from workers in their community yet refuses to pay them a fair wage.
“If the company thinks our members will go quietly and give in they have another thing coming. Bakkavor will be facing the full force of Unite.”
The workforce earns just above the minimum wage, produce meals, soups, dips, salads, desserts, pizzas and breads for the company’s customers including Tesco, Marks and Spencer and Waitrose.
The workers, who Unite stated are required to operate for long shifts in cold temperatures, have previously rejected a pay offer of 6%.
Bakkavor reported a half-year operating profit of £55m for the first half of 2024.
Unite regional officer Sam Hennessey added: “Our members will be making their voices heard and showing how angry they are at Bakkavor’s paltry pay offer.
“The procession through Spalding is aimed at generating further community support for our members.”
Workplace Journal reached out to the Bakkavor food production factory for a comment.