MIDRAND - The National Education Health and Allied Workers' Union wants those unions who broke away from Cosatu to form Saftu, to return to the fold.
Former General Secretary Zwelinzima Vavi set up Saftu last year, and over 20 other unions including Numsa broke away to join the new union federation.
Vavi had been expelled by Cosatu in 2015.
Nehawu General Secretary Zola Saphetha said, "we have to mobilise all workers even those outside the fold of Cosatu to come to Cosatu even including Numsa if necessary to bring those workers to Cosatu.
"Cosatu is the political home of every worker in SA and those in other unions know they were once part of Cosatu. We want them to reconsider to come back where they belong which is the political home of workers.
Saphetha explained the expulsion, "they were expelled because there is a regulation and all of us have to comply. We did make a point that we still need metal workers in the fold of Cosatu but we had to follow through with the Constitutionality of Cosatu."
"We can't turn a blind eye because that Constitution gives rise to our existence."