The company was accused of doing a 'moonlight flit' after 47 years in the city. Union officials, who believe the affair highlights a lack of basic rights for working people, were consulting lawyers with a view to court action.
Jimmy Airlie, of the AEEU, said on BBC Radio 4's The World at One: 'A loyal workforce were provoked into a dispute. When they could not get away with that they used the law in this country to dismiss them - and you are not entitled to any benefits. We will be consulting our lawyers with a view to challenging that.'