2021 shekara-shekara, ƙungiyar bincike ta ƙasa da ƙasa (ICSG) ta ba da rahoto a ranar 23 ga Satumba cewa ƙimar da aka tace tagulla a duniya daga Janairu zuwa Yuni ya karu da kashi 3.2% a duk shekara, fitowar jan ƙarfe na electrolytic (ciki har da electrolysis da electrowinning) shine 3.5. % sama da na wannan shekarar, kuma fitar da tagulla da aka sabunta daga sharar tagulla ya kai kashi 1.7% sama da na wannan shekarar.Alkaluman farko na hukumar ta nuna cewa, yawan tagulla da kasar Sin ta samu ya karu da kashi 6 cikin dari a tsakanin watan Janairu zuwa Yuni daga shekarar da ta gabata.Samuwar tagulla mai ladabi na Chile ya kasance ƙasa da kashi 7% idan aka kwatanta da daidai wannan lokacin a bara, tare da tace tagulla na electrolytic ya karu da kashi 0.5%, amma jan ƙarfe na lantarki ya ragu da kashi 11%.A Afirka, noman tagulla mai tacewa a Jamhuriyar Dimokaradiyyar Kwango ya karu da kashi 13.5 cikin 100 duk shekara yayin da sabbin ma'adinan tagulla suka bude ko kuma fadada masana'antar ruwa.Noman tagulla mai tace tagulla a Zambiya ya karu da kashi 12 cikin 100 yayin da masu aikin tuƙa suka dawo daga dakatarwar samarwa da kuma matsalolin aiki a shekarar 2019 da farkon 2020. Noman tagulla da aka tace a Amurka ya karu da kashi 14 cikin 100 duk shekara yayin da masu aikin tuƙa suka dawo daga matsalolin aiki a shekarar 2020. Bayanan farko. ya nuna raguwar samar da kayayyaki a Brazil, Jamus, Japan, Rasha, Spain (SX-EW) da Sweden saboda dalilai daban-daban, gami da rufewa don kulawa, matsalolin aiki da kuma rufe tsire-tsire na SX-EW.