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Ero Copper reports first quarter 2022 operating and financial results

Financials

May 9, 2022

Ero Copper reports first quarter 2022 operating and financial results

(all amounts in US dollars, unless otherwise noted)

Vancouver, British Columbia – Ero Copper Corp. (TSX: ERO, NYSE: ERO) (“Ero” or the

“Company”) is pleased to announce its operating and financial results for t he three months ended March

31, 2022 . Management will host a conference call tomorrow, Tuesday, May 10, 2022 , at 11:30 a.m.

Eastern time to discuss the results. Dial-in details for the call can be found near the end of this press

release.

HIGHLIGHTS

• Copper production of 9,784 tonnes at C1 cash costs(*) of $1.31 per pound of copper produced;

• Gold production of 8,796 ounces at C1 cash costs(*) and All-in Sustaining Costs ("AISC")(*) of

$638 and $1,092, respectively, per ounce of gold produced;

• Strong net income attributable to the owners of the Company of $52.1 million ($0.57 per share

on a diluted basis), adjusted net income attributable to owners of the Company(*) of $33.0

million ($0.36 per share on a diluted basis), and adjusted EBITDA(*) of $62.4 million;

• Quarterly cash flows from operations of $44.0 million offset capital expenditures related to

advancing the Company's key growth projects. Combined with net proceeds of approximately

$392.0 million from the Company's issuance of $400 million of senior unsecured notes due 2030,

less the repayment of approximately $50 million in outstanding borrowings under the Company's

senior secured revolving credit facility, available liquidity at the end of the period was a record

$540.5 million;

• Reaffirming 2022 production, operating cost and capital expenditure guidance:

◦ Full-year copper production currently expected to be at the high-end of the guidance range;

◦ Based upon the impact of inflation and exchange rate volatility in the first quarter, the

Company is currently guiding to the higher end of its 2022 operating cost ranges; and,

◦ Capital projects remain on schedule and on budget.

• Advanced the Com pany's organic growth strategy through the execution of several critical

milestones during the period including:

◦ Bolstered balance sheet with the issuance of $400 million senior unsecured notes offering;

◦ Received approval from the Company's Board of Directors to construct Boa Esperança and

subsequently executed the critical-path power transmission line contract; and,

◦ Secured several long-lead items related to the new external shaft and mill expansion at the

MCSA Mining Complex.

TSX: ERO

NYSE: ERO

1 Ero Copper Corp

625 Howe Street | Suite 1050 | Vancouver | BC | V6C 2T6 | Canada

“Our vision of high-return organic growth took several critical steps forward during the first quarter,"

said David Strang, Chief Executive Officer. "Following the announcement of our strategy to double

copper production by 2025, we successfully bolstered our liquidity position to support the execution of

these growth plans and received Board approval to construct the Boa Esperança Project. During the

period, we made significant progress at the MCSA Mining Complex on our Pilar 3.0 initiative, which

included securing key long-lead items such as the third ball mill and shaft winder, advancing shaft

construction and new surface installations, and completing the installation of our Cooling Project.

Successful execution of these initiatives is expected to allow us to increase mining and processing

capacity to accommodate significantly higher planned throughput in the years ahead.

"Despite these significant positive developments, the first quarter was not without challenges. In

addition to an underlying strengthening of the Brazilian Real during the first quarter, our operating

costs faced the same inflationary headwinds experienced globally across all industries. While many of

the challenges related to costs are externally driven, we are focused on continuing to improve our

operating efficiencies through existing programs and by investing in new technologies applicable across

all areas of our business. At the same time, we are ta king a cautious approach and currently guiding to

the higher end of our full-year operating cost guidance ranges.

"Highlighting our pursuit of continuous improvement, we commenced an engineering initiative last year,

known as Project Honeypot, that is already delivering significant near-term value for our operations.

Through this initiative our engineering teams, supported by our geology and exploration group, have

developed a comprehensive program to identify and recover high-grade stopes at the Pilar Mine that

were left behind by previous operators decades ago . While the addition of Project Honeypot stopes to

the mine plan are expected to be gradual, we anticipate a positive impact on mined copper grades

commencing in the second quarter of 2022. These contributions are expected to drive higher copper

production through the remainder of the year and, as a result, we are currently guiding to the high-end

of our full-year production guidance range."

*Earnings before interest, taxes, depreciation and amortization (“EBITDA”), Adjusted EBITDA,

Adjusted net income attributable to owners of the Company, Adjusted net income per share attributable

to owners of the Company, C1 cash cost per pound of copper produced, C1 cash cost per ounce of gold

produced and All-in Sustaining Costs (“AISC”) per ounce of gold produced are non-IFRS measures –

see the Notes section of this press release for additional information. C1 cash cost per pound of copper

produced are net of by-product credits from metal produced at the MCSA Mining Complex. AISC per

ounce of gold produced are net of by-product credits from metal produced at the NX Gold Mine.

TSX: ERO

NYSE: ERO

2 Ero Copper Corp

625 Howe Street | Suite 1050 | Vancouver | BC | V6C 2T6 | Canada

FIRST QUARTER REVIEW

• Mining & Milling Operations

◦ The MCSA Mining Complex processed 596,230 tonnes of ore grading 1.78% copper,

producing 9,784 tonnes of copper in concentrate during the quarter after metallurgical

recoveries of 92.2%.

◦ The NX Gold Mine processed 49,990 tonnes grading 5.93 grams per tonne, producing 8,796

ounces of gold after metallurgical recoveries of 92.3% and 6,042 ounces of silver as a by-

product.

• Organic Growth Projects

◦ At the MCSA Mining Complex, construction of the new external shaft in support of the

"Pilar 3.0" initiative continued to progress during the quarter while efforts on ancillary

related projects delivered important milestones. Together, the existing and new shaft

currently under construction are expected to increase total hoisting capacity of the Pilar

Mine to approximately 5.7 million tonnes per annum, an increase of over 60% compared to

current hoisting capacity of 3.5 million tonnes per annum, offering flexibility for future

mine expansions.

– Construction of the new external shaft continues to progress on schedule and on

budget with excavation for the head-frame and two winder foundations completed

during the first quarter.

– Expansion of the Caraíba Mill to 4.2 million tonnes per annum is underway with a

third ball mill ordered during the period for which commissioning is expected in Q2

2023.

– Significant progress has been made in defining opportunities in the upper levels of

the Pilar Mine that have the potential to add near-term value through an initiative

known as "Project Honeypot". This engineering initiative is focused on recovering

high-grade stopes, ribs and sill pillars left behind by previous operators during the

late 1990s due to the under-capitalized nature of operations at the time. The first

Project Honeypot stope (RC03) is approximately 130,000 tonnes grading

approximately 4.00% copper and is expected to commence mining in Q2 2022.

– The second and final phase of the Cooling Project was completed subsequent to

quarter-end at the Pilar Mine with hand-over to operations occurring at the end of

April 2022. The Cooling Project is expected to support expansions at depth and has

the potential to drive meaningful operating efficiencies.

◦ Important advances on key workstreams at Boa Esperança included:

– Execution of the critical-path power transmission line contract;

– Mobilization of the first earth works package, including new access road

construction and road upgrades;

– Completion of Gap Zone and condemnation drilling; and,

– Market tendering for key contracts completed subsequent to quarter-end. Contractor

and supplier selections remain ongoing.

TSX: ERO

NYSE: ERO

3 Ero Copper Corp

625 Howe Street | Suite 1050 | Vancouver | BC | V6C 2T6 | Canada

OPERATING AND FINANCIAL HIGHLIGHTS

3 months

ended

Mar. 31, 2022

3 months

ended

Dec. 31, 2021

3 months

ended

Mar. 31, 2021

Operating Highlights

Copper (MCSA Operations)

Ore Processed (tonnes) 596,230 646,319 597,594

Grade (% Cu) 1.78 2.01 2.30

Cu Production (tonnes) 9,784 11,918 12,638

Cu Production (000 lbs) 21,570 26,275 27,863

Cu Sold in Concentrate (tonnes) 10,045 12,393 12,469

Cu Sold in Concentrate (000 lbs) 22,145 27,321 27,488

C1 cash cost of Cu produced (per lb)(1) $ 1.31 $ 0.96 $ 0.49

Gold (NX Gold Operations)

Au Production (oz) 8,796 8,544 9,451

C1 cash cost of Au Produced (per oz)(1) $ 638 $ 582 $ 487

AISC of Au produced (per oz)(1) $ 1,092 $ 910 $ 643

Financial Highlights ($ in millions, except per share amounts)

Revenues $ 108.9 $ 134.9 $ 122.5

Gross profit 61.0 84.4 82.8

EBITDA(1) 78.1 80.7 55.2

Adjusted EBITDA(1) 62.4 86.8 86.7

Cash flow from operations 44.0 66.7 62.1

Net income 52.5 60.2 32.1

Net income attributable to owners of the Company 52.1 59.8 31.7

Per share (basic) 0.58 0.67 0.36

Per share (diluted) 0.57 0.65 0.34

Adjusted net income attributable to owners of the Company(1) 33.0 59.7 56.3

Per share (basic) 0.37 0.67 0.64

Per share (diluted) 0.36 0.65 0.61

Cash, cash equivalents, and short-term investments 465.5 130.1 84.6

Working capital(1) 443.7 86.0 63.5

Net debt(1) (54.4) (70.9) 74.5

(1) EBITDA, Adjusted EBITDA, Adjusted net income (loss) attributable to owners of the Company, Adjusted net income

(loss) per share attributable to owners of the Company, Net Debt, Working Capital, C1 cash cost of copper produced (per

lb), C1 cash cost of gold produced (per ounce) and AISC of gold produced (per ounce) are non-IFRS measures – see the

Notes section of this press release for a discussion on non-IFRS Measures.

TSX: ERO

NYSE: ERO

4 Ero Copper Corp

625 Howe Street | Suite 1050 | Vancouver | BC | V6C 2T6 | Canada

ADJUSTED EBITDA & NET INCOME (LOSS) RECONCILIATION

($ in thousands)

3 months ended

Mar. 31, 2022

Adjusted EBITDA $ 62,377

Adjustments:

Unrealized foreign exchange gain on USD denominated balances in MCSA 11,279

Unrealized foreign exchange gain on derivative contracts 24,714

Realized foreign exchange loss on derivative contracts (4,567)

Share based compensation and other (14,707)

Incremental costs in response to COVID-19 pandemic (1,004)

EBITDA $ 78,092

Adjusted net income attributable to owners of the Company $ 32,951

Adjustments for non-cash items (attributable to owners of the Company):

Unrealized foreign exchange gain on USD denominated debt in MCSA 1,337

Unrealized foreign exchange gain on derivative contracts, net of tax 24,615

Share based compensation (1,990)

Incremental costs in response to COVID-19 pandemic (998)

Reported net income attributable to owners of the Company $ 55,915

2022 GUIDANCE(*)

The Company is reaffirming its full-year production, cost and capital expenditure guidance as detailed in

the tables below. At the MCSA Mining Complex, the Company is guiding to the high-end of its full-

year copper production guidance range. Increased copper production is expected to result from higher

mining rates at the Pilar Mine relative to the first quarter as well as improved grades due to planned

stope sequencing and mining of an initial stope within the Project Honeypot zone. Higher mined and

processed volumes from the Surubim Mine are also expected to contribute to higher copper production

volumes through the balance of the year.

Unit operating costs during the first quarter were affected by inflation in the cost of key consumables

and impacted by the strengthening of the BRL versus the US dollar. While unit costs are expected to

benefit through the remainder of the year from higher copper and gold production, based upon the

influence of first quarter operating costs, the Company is currently guiding to the higher end of its full-

year operating cost guidance ranges.

TSX: ERO

NYSE: ERO

5 Ero Copper Corp

625 Howe Street | Suite 1050 | Vancouver | BC | V6C 2T6 | Canada

2022 PRODUCTION AND COST GUIDANCE(*)

The Company's cost guidance for 2022 assumes a USD:BRL foreign exchange rate of 5.30, a gold price

of $1,725 per ounce and a silver price of $20.00 per ounce.

MCSA Mining Complex

Copper Production (tonnes) 43,000 - 46,000

C1 Cash Cost Guidance (US$/lb)(1) $1.05 - $1.15

NX Gold Mine

Gold Production (ounces) 39,000 - 42,000

C1 Cash Cost Guidance (US$/oz)(1) $500 - $600

All-in Sustaining Cost (AISC) Guidance (US$/oz)(1) $925 - $1,025

(1) C1 Cash Costs and AISC are a non-IFRS measure - see the Notes section of this press release for additional information.

2022 CAPITAL EXPENDITURE GUIDANCE(*)

The Company's capital expenditure guidance for 2022 assumes a USD:BRL foreign exchange rate of

5.30 and has been presented below in USD millions.

MCSA Mining Complex

Growth $125 - $140

Sustaining $80 - $90

Exploration $25 - $30

Total, MCSA Mining Complex $230 - $260

Boa Esperança Project

Growth $70 - $80

Sustaining $0

Exploration $5 - $6

Total, Boa Esperança Project $75 - $86

NX Gold Mine

Growth $0 - $1

Sustaining $16 - $18

Exploration $9 - $10

Total, NX Gold Mine $25 - $29

Company Total

Growth $195 - $221

Sustaining $96 - $108

Exploration $39 - $46

Total, Company $330 - $375

(*) Guidance is based on certain estimates and assumptions, including but not limited to, mineral reserve estimates, grade and

continuity of interpreted geological formations and metallurgical performance. Please refer to the Company’s SEDAR and

EDGAR filings, including the Company's most recent Annual Information Form, for complete risk factors.

TSX: ERO

NYSE: ERO

6 Ero Copper Corp

625 Howe Street | Suite 1050 | Vancouver | BC | V6C 2T6 | Canada

CONFERENCE CALL DETAILS

The Company will hold a conference call on Tuesday, May 10, 2022 at 11:30 am Eastern time (8:30 am

Pacific time) to discuss these results.

Date: Tuesday, May 10, 2022

Time: 11:30 am Eastern time (8:30 am Pacific time)

Dial in: North America: 1-800-319-4610, International: +1-604-638-5340

please dial in 5-10 minutes prior and ask to join the call

Replay: North America: 1-800-319-6413, International: +1-604-638-9010

Replay Passcode: 8813

NOTES

Non-IFRS measures

The Company utilizes certain alternative performance (non-IFRS) measures to monitor its

performance, including C1 cash cost of copper produced (per lb), C1 cash cost of gold produced

(per ounce), AISC of gold produced (per ounce), realized gold price (per ounce), EBITDA,

adjusted EBITDA, adjusted net income attributable to owners of the Company, adjusted net

income per share, net (cash) debt, working capital and available liquidity. These performance

measures have no standardized meaning prescribed within generally accepted accounting

principles under IFRS and, therefore, amounts presented may not be comparable to similar

measures presented by other mining companies. These non-IFRS measures are intended to

provide supplemental information and should not be considered in isolation or as a substitute for

measures of performance prepared in accordance with IFRS.

C1 cash cost of copper produced (per lb.)

C1 cash cost of copper produced (per lb) is a non-IFRS performance measure used by the

Company to manage and evaluate the operating performance of its copper mining segment and is

calculated as C1 cash costs divided by total pounds of copper produced during the period. C1

cash costs includes total cost of production, transportation, treatment and refining charges, and

certain tax credits relating to sales invoiced to the Company's Brazilian customer on sales, net of

by-product credits and incentive payments. C1 cash cost of copper produced per pound is widely

reported in the mining industry as benchmarks for performance but does not have a standardized

meaning and is disclosed in supplement to IFRS measures.

C1 cash cost of gold produced (per ounce)

C1 cash cost of gold produced (per ounce) is a non-IFRS performance measure used by the

Company to manage and evaluate the operating performance of its gold mining segment and is

calculated as C1 cash costs divided by total ounces of gold produced during the period. C1 cash

cost includes total cost of production, net of by-product credits and incentive payments. C1 cash

cost of gold produced per ounce is widely reported in the mining industry as benchmarks for

TSX: ERO

NYSE: ERO

7 Ero Copper Corp

625 Howe Street | Suite 1050 | Vancouver | BC | V6C 2T6 | Canada

performance but does not have a standardized meaning and is disclosed in supplemental to IFRS

measures.

All-in Sustaining Cost of gold produced (per ounce)

All-in sustaining cost of gold produced (per ounce) is an extension of C1 cash cost of gold

produced (per ounce) discussed above and is also a key performance measure used by

management to evaluate operating performance of its gold mining segment. AISC of gold

produced (per ounce) is calculated as AISC divided by total ounces of gold produced during the

period. AISC includes C1 cash costs, site general and administrative costs, accretion of mine

closure and rehabilitation provision, sustaining capital expenditures, sustaining leases, and

royalties and production taxes. AISC of gold produced (per ounce) is widely reported in the

mining industry as benchmarks for performance but does not have a standardized meaning and is

disclosed in supplement to IFRS measures.

Earnings before interest, taxes, depreciation and amortization (EBITDA) and Adjusted EBITDA

EBITDA and adjusted EBITDA are non-IFRS performance measures used by management to

evaluate its debt service capacity and performance of its operations. EBITDA represents earnings

before finance expense, income taxes, depreciation and amortization. Adjusted EBITDA is

EBITDA before the pre-tax effect of adjustments for non-cash and/or non-recurring items

required in determination of EBITDA under its revolving credit facility for covenant calculation

purposes.

Adjusted net income attributable to owners of the Company and Adjusted net income per share

attributable to owners of the Company

“Adjusted net income attributable to owners of the Company” is net income attributed to

shareholders as reported, adjusted for certain types of transactions that, in management's

judgment, are not indicative of our normal operating activities or do not necessarily occur on a

recurring basis. “Adjusted net income per share attributable to owners of the

Company” (“Adjusted EPS”) is calculated as "adjusted net income attributable to owners of the

Company" divided by weighted average number of outstanding common shares in the period.

The Company believes that, in addition to conventional measures prepared in accordance with

IFRS, the Company and certain investor and analysts use these supplemental non-IFRS

performance measures to evaluate the normalized performance of the Company. The

presentation of Adjusted EPS is not meant to substitute the net income (loss) per share

attributable to owners of the Company (“EPS”) presented in accordance with IFRS, but rather it

should be evaluated in conjunction with such IFRS measures.

Net (Cash) Debt

Net (cash) debt is a performance measure used by the Company to assess its financial position

and ability to pay down its debt. Net (cash) debt is determined based on cash and cash

equivalents, short-term investments, net of loans and borrowings as reported in the Company’s

condensed consolidated interim financial statements.

TSX: ERO

NYSE: ERO

8 Ero Copper Corp

625 Howe Street | Suite 1050 | Vancouver | BC | V6C 2T6 | Canada