Mahaka Zinare na Obuasi wani rami ne na buɗe-rami da ma'adanan gwal da ke kusa da Obuasi, a cikin Ashanti Yankin Ghana. Yana ɗayan manyan-ma'adanan zinare 9 a duniya. 'Filin' mallakar al'ada ne na Asantehene King Osei Tutu II. Nakin yana cikin Gundumar Karamar Hukumar Obuasi, mil 39 (kilomita 59.4) kudu maso yamma na babban birnin yankin Kumasi. An fara hakar gwal a wurin hakar gwal na Obuasi sama da shekaru 112 da suka gabata, a shekarar 1897 lokacin da a da aka sanshi da suna Ashanti Mine. A cikin 2008, ayyukan AngloGold Ashanti na Ashantiland, wanda ya ƙunshi Obuasi da Iduapriem Gold Mine, sun ba da gudummawar 11% ga samarwar kamfanin na shekara-shekara. Duk mahakan sun zama ɓangare na AngloGold Ashanti lokacin da Kamfanin Ashanti Goldfields tare da Sam E. Jonah a matsayin shugaba suka haɗu da AngloGold Corporation na Afirka ta Kudu a cikin 1990s. A shekarar 2009, mahakar ta dauki sama da mutane 5,700 aiki. Ma'adanai sun sami asarar rayuka biyu a cikin 2008 da ɗaya a cikin 2009.