The Ministry is responsible for the inventory of the province's mineral, coal and aggregate reserves and resources.

Information is gathered through geoscience field surveys and from industry assessment reports filed in compliance with legislation. The inventory is used to attract industry investment, to assist government's stewardship of its rich mineral resource endowment, and to help manage and protect Crown lands.

The main activities include: geological and geochemical surveying; mineral, coal and industrial mineral inventories management; mineral potential assessments for land use planning; monitoring exploration activities; assessing geological hazards; publishing maps and reports; and providing geoscience expertise to support government's sustainable development objectives.