NSW Premier Chris Minns faces his first industrial relations test as union bosses representing the state’s public sector workers plan industrial action across the state’s hospitals next week in a bid to press their case for a 6.5 per cent pay increase.

Just two months after taking office on an election pledge to lift public sector pay and scrap a public sector wage cap, Mr Minns is under increasing pressure from unions, which are growing impatient about how long it is taking to deliver on the promise.