Bic is considering moving its New Zealand manufacturing operation overseas.
An announcement from the Engineering, Printing and Manufacturing union today said the company was holding a one-week consultation period with staff about the move.
It was expected about 19 jobs at Bic's Auckland site would be gone by early next year, the EPMU said in a statement.
The union's manufacturing industry organiser Louisa Jones said the proposed closure would have a huge impact on staff, many of whom have worked for the company for decades.
"Most workers at Bic are long-serving and they have been incredibly loyal and dedicated, so this is a real shock for them.