There are a variety of export services available to businesses, including:
Certificates of Origin 
The Wellington Employer’s Chamber of Commerce can issue Certificates of Origin and certify other trade documents such as Commercial Invoices, Packing Lists, Bill of Ladings, Visa Applications for member’s and others on request.
Email [email protected] or Tel 04 473 7224 with any further questions.
Go to their web site
Export New Zealand 
ExportNZ is a division of BusinessNZ. Through their nationwide network they can provide the knowledge, information, contacts, training, support and services to help grow your export business.
www.exportnz.org.nz
New Zealand Trade & Enterprise
Exporting is a journey. It can help your business grow and prosper. It can also improve your competitiveness by exposing you and your staff to new ideas and demands from overseas customers.