If you are an exporter or importer, New Zealand Trade and Enterprise (NZTE) has set up a page on their website which brings together information from NZTE, the Ministry for Primary Industries, the Ministry for Foreign Affairs and Trade, and Customs. Information on the page is reviewed daily. It also includes contact details for the relevant agencies for you to get in touch with depending on your situation.
Coronavirus (COVID-19) – Information for exporters (external link) — New Zealand Trade and Enterprise

If you are an exporter with a specific concern you would like to discuss, NZTE has opened up access to a panel of external experts. If you are not already working with NZTE, you can call 0800 555 888.