Vale ta sanar a ranar 16 ga Maris cewa kamfanin ya fara aikin matatar tacewa ta wutsiya a yankin da aka haɗa da Da Varjen. Wannan ita ce matatar tacewa ta wutsiya ta farko da Vale ta shirya buɗewa a Minas Gerais. A cewar shirin, Vale za ta zuba jarin jimillar dala biliyan 2.3 a gina matatar tacewa ta wutsiya tsakanin 2020 da 2024.
An fahimci cewa amfani da injin tace tailings ba wai kawai zai iya rage dogaro da madatsar ruwa ba, har ma zai iya inganta matsakaicin darajar fayil ɗin samfurin Vale ta hanyar ayyukan amfani da ruwa. Bayan an tace tailings na ƙarfe, ana iya rage yawan ruwan zuwa mafi ƙanƙanta, kuma yawancin kayan da ke cikin tailings za a adana su a cikin tsari mai ƙarfi, don haka rage dogaro da madatsar ruwa. Vale ya bayyana cewa kamfanin yana shirin buɗe injin tace ta farko a yankin aiki na Itabira a cikin 2021, da kuma injin tace ta biyu a yankin aiki na Itabira da kuma injin tace ta farko a yankin haƙar ma'adinai na Brucutu a cikin 2022. Cibiyoyin tace tailings guda huɗu za su samar da ayyuka ga wasu masu tattara tailings na ƙarfe waɗanda ke da jimillar ƙarfin samarwa na tan miliyan 64/shekara.
Vale ta sanar a cikin "Rahoton Samarwa da Tallace-tallace na 2020" wanda aka fitar a ranar 3 ga Fabrairu, 2021 cewa a cikin kwata na uku na 2021, yayin da aka fara aiki da madatsar ruwan ma'adinai mai lamba 3, kamfanin zai kuma dawo da tan miliyan 4 na ƙarfin samarwa. Yana cikin matakin ƙarshe na gini. Tayoyin da aka zubar a madatsar ruwan ma'adinai mai lamba 3 za su kai kusan kashi 30% na duk tayoyin da aka samar yayin aiki. Buɗe masana'antar tace tayoyin a yankin aiki mai cikakken tsari na Davarren wani muhimmin ci gaba ne da Vale ta samu wajen daidaita samar da ma'adinan ƙarfe da kuma dawo da ƙarfin samar da takin zamani na shekara-shekara na tan miliyan 400 nan da ƙarshen 2022.