Shawn Tan
EPMU national secretary Andrew Little said yesterday Mr Tan was fired over contractual reasons.
"The decision is about his employment obligations, it's not about his political affiliations...he has employment obligations to the union and he has chosen not to abide by those," he told The New Zealand Herald..
"Added to that he has chosen to attack the union publicly."
Mr Tan, who worked as an organiser at the Labour-affiliated call centre, was suspended on August 18 when it was revealed he would stand for the right-wing party without seeking permission as required by his contract.
Mr Tan said he would liaise with his lawyer today about legal action.
