Clandeboye's $240million mozzarella plant is on target for commissioning in May.
The project, which is the third mozzarella plant for Fonterra's Clandeboye site, is three-quarters complete and has already created 75 new jobs.
A further 25 employees will join the team in February.
Clandeboye operations manager Steve McKnight was among those watching progress.
''There's a real buzz in the air on site as we have more people on site and the plant takes shape,'' he said.