Kaipara is known as the kumara capital of the country so when Ruawai College students discovered the only kumara chips for sale in their local supermarket were from China, they decided to do something about it.
"Kumara is quite an important part of Kaipara," said 17-year-old student Laura Blundell.
The group of 12 students from Ruawai College set up business Keeping it K as part of the Young Enterprise Scheme, a programme where high school students have to set up and run a real business.
"The only kumara chips sold in the Kaipara were from China. We thought it would be better if they were locally produced," Ms Blundell said.
"We were angry, we are the kumara capital so for us we wanted to sell what was locally grown."