pūtahi mataitai
Ko te whakamahi i ngā pūhiko kō whatitiri he wāhanga nui o te hanga me te tirohanga minera o nehe, e whakapuakina ana i ngā hōtaka pūkaha me te hanga tika. Nā ēnei pūhiko matatini ka whakamahi i te mahi whatitiri ranei, ranei te mahi whatitiri-hurihuri hei whakangungu i ngā whenua kō whatitiri. Ko te hunga mōhiotanga kei roto i tēnā i ngā rāngai hāpū ranei, i ngā rāngai hīrau ranei, e whakawhitiwhiti ana i te kaha nui ki te pū whatitiri, e whakawehe ana i te katoa o ngā whenua whatitiri. Kei ngā pū whatitiri ā-rā ka noho ngā hoahoa pū whatitiri, mai i ngā pū whatitiri pūoro ki ngā pū whatitiri tuatahi, ināianei kua whakaritea ki ngā whenua whatitiri tae atu. Ko te whiuwheoro o te tūranga ka whakaae ki ngā hōtaka hanga i waenganui, ko ngā hōtaka hanga i raro hoki, me ngā whakarite taea mo ia ao. Ka taea e ēnei pū whatitiri te whakatupu i ngā ratonga pai nei i te whakangungu i te wā, ahakoa te whakaaetanga ki te hanga rorohiko. Kua wehewehehua ake te hunga mōhiotanga hei whakamahi i ngā pūrere whatitiri, i ngā take tirotiro i te wā, me ngā rāngai whakaiti hūpara hei whakangungu i ngā mahi haumaru. He mea nui ngā pū whatitiri i waenga i ngā hōtaka tirohanga minera, e hāngai ana ki te whakahau i ngā paenga, te hanga ruaheketanga, me te hanga papa, whakamahia ai hei tāngata nui i te rōpū hanga minera. Ko tō rātou whiuwheoro ki ngā tono rerekē o ngā whenua whatitiri, ko tō rātou āhua whakaaetanga ki te mahi pai i ngā wāhanga whakamāharahara, he mea nui hei whakatutuki i ngā hōtaka tirohanga minera.