About 1,000 workers at Grampian Foods have voted by three to two to strike over pensions.
The strike could have a major impact on the Sainsbury’s supermarket chain and other high profile retailers.
The first 24-hour strike was set to take place on Friday of this week at the largest site at Haverhill, Suffolk. Workers at Cambuslang and Coupar Angus in Scotland and Sandycroft and Llangefni in North Wales also voted for action short of a strike.
The action by members of the T&G union is in opposition to plans by the company to end the final salary pension scheme.
According to the union the company has not explaned to workers why it plans to end the scheme.
The union believes that the company has launched the attack in preparation for the stock market flotation of the company.
T&G union national secretary Chris Kaufman said, “Our members are very clear that they mean to defend their pensions and stand up to their right to what is, after all, their money.”