International law experts are warning the government's plan to review extradition and trade relationships with Hong Kong won't be taken lightly by China.
The review was prompted by a controversial new security law for the territory passed by China last week.
The New Zealand government is going to consider the extradition arrangements with Hong Kong, controls on exports of strategic goods, and travel advice.
Yesterday the Australian government suspended its extradition treaty with the territory.
Australian Prime Minister, Scott Morrison, has extended visas for Hong Kong citizens in Australia as a path to permanent residency.
The UK government has also extended visas for up to five years for 3 million Hong Kong citizens.
The Canadian government has suspended its extradition treaty with Hong Kong.
Alexander Gillespie is a Professor of International Law at the Unviersity of Waikato.