The first big group of Cadbury workers will leave the Dunedin factory tomorrow.
The 160 workers are seasonal and typically worked from about May to December.
Including seasonal workers, about 360 jobs would go in the factory closure.
Almost 80 permanent staff finish next Friday, and other workers finish in March when the factory closes.
Yesterday, in a statement, site manager Judith Mair said some seasonal workers would receive a final payment but were not entitled to redundancy.