Workers at Solway Foods in Corby have voted in favour of taking strike action, the Bakers Food and Allied Workers Union (BFAWU) has said.
The ballot began on January 10 and ended on Friday, January 24, with 91 per cent of those who voted saying they were in favour of going on strike.
The plant, in Godwin Road in the Earlstree Industrial Estate, employs about 900 people, about 500 of who are union members, said the BFAWU.
The union said 59 per cent of its members at the plant had returned their ballots, with 91 per cent of those in favour of going on strike.
The vote was prompted after the union said workers had seen shifts increase from eight to 12 hours without an increase in pay and the ballot paper asked for a backdated pay rise to August 2013.
A spokesman for the 2 Sisters Food Group, which owns Solway Foods, said: “We can confirm that we’ve noted the result of the ballot at Solway Foods in Corby which we understand to be 231 votes in favour of action. We have about 900 staff at the factory in Corby.
“We’ve been in talks with colleagues and their representatives for a while now about the issues balloted on. We will continue to seek to resolve these issues.”
When the ballot was first announced the BFAWU said it was proposing a one-day strike every two weeks.
Two weeks ago, production at Solway Foods was halted after metal objects were found inside food packaging. Detectives from Northamptonshire Police said they were confident that the objects were placed on the production line as an act of sabotage, rather than an attempt to harm the public.
Solway Foods produces sandwiches and salads for a number of supermarkets.