We are based in New Zealand, so you will need to take this into account when setting us up as a Vendor / Supplier to your organization.
Our Supplier Information form
Optimal Workshop Supplier Details 2020.pdf
This form contains our:
registered company name
New Zealand Companies Office Registration number
Foreign Tax Identification Number
billing address
accounts contact details
bank account details
Our completed W-8BEN-E form
2019 W 8 BEN E Signed May 2019.pdf
As we are tax domiciled in New Zealand, we complete a W8-BEN-E form instead of a W9 form.
Internet sales
If a registered New Zealand-owned entity provides goods or services over the internet to people in New Zealand, they'll charge GST, at 15%.
If a New Zealand-owned entity sells goods or services over the internet to overseas customers, GST will generally be charged at the rate of 0%.
http://www.ird.govt.nz/gst/additional-calcs/calc-spec-supplies/calc-zero/calc-zero.html#internet
http://www.ird.govt.nz/ecommerce-tax/ecommerce-gst/business-australian-ecommerce-gst.html
So unless the company purchasing is registered here in NZ for GST the GST is Zero rated.