Here are some useful links -
Government Bodies
Department of Conservation
Department of Conservation - Mineral Exploration
The Department of Conservation protects New Zealand's natural and historic heritage. Before an exploration or prospecting permit granted under the Crown Minerals Act 1991 may be exercised over public conservation lands, the permit holder requires permission to enter the land from the Department of Conservation (DOC).
Crown Minerals
Crown Minerals
Crown Minerals is part of our Ministry for Economic Development. Crown Minerals manages the Crown's petroleum and mineral assets (oil, gas, minerals and coal). Its key objectives are to attract investment in exploration and development, and to maximise the return to the Crown from these assets.
Crown Research Institute
GNS
Mining Companies that are active in New Zealand
Onshore exploration
Glass Earth Gold Ltd: www.glassearthlimited.com
Heritage Mining: www.heritagegold.co.nz
Auzex Resources: www.auzex.com
Newmont Waihi Gold:www.marthamine.co.nz/06_03_07.htm
Offshore exploration
Neptune Resources New Zealand Ltd: http://www.neptuneminerals.com/
Mining companies
Newmont Waihi Gold: www.marthamine.co.nz
OceanaGold: www.oceanagold.com
Solid Energy NZ Ltd: www.coalnz.com
