He kūpono nā makau no nā ʻano ʻenehana hoʻokiʻekiʻe ʻenehana, nā mea hana mining metallurgical, ka hoʻouka ʻana a me ka wehe ʻana o ke awa, nā mīkini ulu lāʻau, nā lako mana, ka mokulele a me ka moana, ka halihali ʻāina, ka hale hana a me nā ʻoihana mining e hāpai ana, traction, etc.