If you want to just import fresh coconuts and make the products yourself you are going to have to meet a number of requirements.
Importing legislation, rules and standards about fresh coconut are to be found here:
Alternatively and much more likely you can look to import packaged coconut oils, butters, and coconut drinks. Either producing them over seas or an easier way is buy in bulk and then repackage in NZ.
Commonly imported coconut products into NZ are coconut oils, and coconut flour, less well know products are coco not soy coconut aminos
There are many benefits to coconut products but be aware of changes to upcoming labelling standards being introduced in 2016 and how these benefits can be advertised.
Well known countries to source coconut products from are Fiji and Thailand