Announcement Date: 2022-11-07
Announcement Type: Deposit Estimation
Announcement Code: NI43-101
Company name: Ero Copper Corp.
Project name: Caraiba
Location: Brazil
Commodities: Copper
Highlight: Updated Resource Estimate for Project
Resources: only available to subscribers
CP/QP: only available to subscribers
Announcement summary: Vancouver, British Columbia – Ero Copper Corp. (TSX: ERO, NYSE: ERO) (“Ero” or the “Company”) is pleased to announce an update of its National Instrument 43-101 (“NI 43-101”) compliant mineral reserves and resources along with a life-of-mine (“LOM”) production plan for its Caraíba Operations, located in Bahia State, Brazil. The updated mineral reserve and mineral resource estimates incorporate drilling activities through June 30, 2022 while mining depletion has been updated through the effective date of the estimate, September 30, 2022. The Company’s 2022 LOM planning process considers recently completed and ongoing investments in mining and milling infrastructure under the Company’s Pilar 3.0 initiative. As a result of the integration of Project Honeypot and the nature of the mineralization remaining in the upper levels of the Pilar Mine, and more broadly within the Company’s underground operations, effective extraction of the mineral reserve necessitated the consideration of inferred mineral resources in the Company’s long-term strategic planning efforts, particularly in the design of stopes that include measured, indicated and some inferred mineral resources – a process that has been utilized at the Pilar Mine since underground operations commenced in 1986. Inferred mineral resources are considered too speculative geologically to have the economic considerations applied to them that would
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