Vancouver, British Columbia – Ero Copper Corp. (TSX: ERO, NYSE: ERO) ("Ero" or the
“Company”) is pleased to provide an updated five-year operating outlook, reflecting the
Company's continued execution of ongoing strategic growth initiatives, including the
forecasted first production from the Tucumã Operation in 2024 and first production utilizing
the new external shaft at the Caraíba Operations' Pilar Mine in 2027.
HIGHLIGHTS
On Track to Deliver Significant Near-Term Growth
• Consolidated copper production expected to increase by approximately 125% from
2022 levels to a range of 100,000 to 110,000 tonnes in 2025, higher than the
Company's previous 2025 production forecast of 92,000 to 102,000 tonnes1
• Gold production on track to grow by approximately 40% from 2022 levels to a range
of 55,000 to 60,000 ounces per year beginning in 2024
Tucumã Production Plan Enhanced by Infill Drilling Program & Stockpile Optimization
• Higher expected mined copper grades at Tucumã during the first three years of
operation driven by positive grade reconciliation from recent infill drilling
• Additional increases to processed copper grades driven by stockpile optimization
associated with a planned increase in mining rates during 2025 and 2026 as compared
to the Company's five-year outlook issued in 20221
(the "2022 5-Year Outlook")
Caraíba Outlook Reflects Success of Project Honeypot
• The Caraíba Operations' improved copper grade projections compared to the 2022 5-
Year Outlook1
driven by the success of Project Honeypot
• The ongoing integration of Project Honeypot into Caraíba's life-of-mine ("LOM")
production plan enabled the deferral of approximately $55 million2
of new external shaft-related capital from 2022 to subsequent periods

Xavantina Outlook Showcases Ongoing Execution of NX 60 Initiative
• Higher expected gold grades compared to the 2022 5-Year Outlook1
demonstrate
continued value creation through investment in exploration and underground
infrastructure
• Matinha Vein on track to begin production in H2 2023, ahead of original 2024 timeline
1
Please refer to the Company's press release dated January 11, 2022.
2
Assumes high-end of original 2022 growth capital expenditure range of $125 to $140 million for the Caraíba
Operations as announced in the 2022 5-Year Outlook press release dated January 11, 2022.

Commenting on the Company's updated five-year outlook, David Strang, Chief Executive
Officer, said "I am pleased to share the results of our team's efforts across our portfolio to
continue elevating our mine plans and growth trajectory. The cumulative impact is best
reflected in the considerable improvement to processed grades across our operations over the
projection period, which has helped to meaningfully mitigate the effects of inflation on our
unit operating costs.
"At the Tucumã Project, our production outlook for 2025 has increased by over 15% due
primarily to higher anticipated mined grades in 2024 through 2026 based on recent infill
drilling. Furthermore, by increasing mining rates and optimizing Tucumã's stockpile strategy
in 2025 and 2026, our outlook reflects an additional improvement in processed copper
grades over the same period, with production expected to peak at over 55,000 tonnes at cash
costs in-line with the Tucumã Project Technical Report.
"Similarly, at our Caraíba Operations, the success of Project Honeypot has driven higher
anticipated processed copper grades over the next three years, partially offsetting the
combined impact of inflation and changes in sales channel allocations. Additionally, the
deferral of the new external shaft enabled us to shift approximately $55 million in capital
originally planned for 2022 to subsequent periods, smoothing our consolidated capital profile over the projection period.
"Higher expected gold grades and sustained gold production of 55,000 to 60,000 ounces at our Xavantina Operations are a result of the success of our NX 60 initiative as well as ongoing investments in exploration. With the Matinha Vein on track to begin production earlier than originally planned, and with 25% excess capacity remaining at the Xavantina mill, our team is focused on regional exploration opportunities that we hope will be able to offer additional production upside in the years ahead.
"As we progress through 2023, we have maintained strong momentum on all of our strategic initiatives and look forward to delivering the peer-leading growth reflected in our updated five-year outlook." see & read more on
https://erocopper.com/site/assets/files/6364/2023-04-05-ero-nr.pdf