All projectsMining projectTransición Ujina-Rosario y Expansión Concentradora 110 ktpd (Collahuasi)Project factsStageOperatingSMASponsorCompañía Minera Doña Inés de CollahuasiSMARegionTarapacáSMACommoditiesCopperSMATypeExpansionSMAEstimated start-upNo data yetSEIA / RCARCA · Approved as of Sep 28, 2026SMAEstimated investmentNo data yetSourcesDocuments cited on this page.Source: Superintendencia del Medio Ambiente (SMA), RCA register: start of execution and expiry.Source: Superintendencia del Medio Ambiente (SMA), SNIFA, ficha de unidad fiscalizable: FAENA MINERA COLLAHUASI.