The GMB has confirmed it is the latest union to be invited to join a proposed ‘super union’ along with Amicus and the T&G.
This would give the new union 2.5 million members and make it a dominant industrial presence in many key sectors of the economy.
It would be overwhelmingly the largest trade union in the private sector, and would have a major voice in public services too.
GMB general secretary, Kevin Curran, said: “A campaigning, inclusive, fighting union of 2.5 million members with unprecedented financial, political and organisational resources could give working people in Britain a strong voice in the work place and beyond.”
“The potential benefits to trade union members and all working people are enormous,” he said.
The GMB said it has 615,000 members.