New Zealand has never formally stated that it was banning Huawei's involvement in building the infrastructure. However, when New Zealand companies request permission to use Huawei's products, that permission is denied. What that means is that, without ever stating publicly that Huawei is not allowed to participate in building its infrastructure, New Zealand is, in practice, following that policy.
I would also say, more broadly speaking, that we have a lot to learn from countries such as New Zealand and Australia when it comes to interference and intimidation. Australia has passed four laws to prevent interference in domestic matters. I think we should look to Australia as a model so that we can update our own legislation.