By failing to offer care staff a reasonable cost of living increase, Oceania has attacked the carers who go out of their way every day to care for and support residents.
Oceania's parent company, Retirement Care NZ, is controlled by Macquarie Global Infrastructure Fund II, an equity firm based in Australia.
Management is more focused [on] making a return to overseas shareholders than it is in running what could be a great rest home chain caring for 3000 New Zealanders," Mr Duncan said.
Workers were seeking a 3.5 per cent pay rise but the union says Oceania has offered a 1 per cent increase with no backdating. They also wanted to slash workers' overtime rates, the union said.
Oceania needs to be fair to those who care, said Mr Duncan.
Labour's spokesperson for labour issues Darien Fenton described the offer as "pitiful".
"Things have become desperate when some of our lowest paid workers caring for older New Zealanders are forced to strike to get a fair pay increase.
Caregivers do magnificent work caring for the older members of our families, yet they are underpaid and undervalued."