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Jaguar Mining Reports Financial Results for the First Quarter 2023 __________________________________________________________________________________________

Financials

1

JAGUAR MINING INC.

First Canadian Place, 100 King Street West, 56th Floor, Toronto, Ontario, Canada M5X 1C9 T: 416-847-1854

NEWS RELEASE

May 10, 2023 TSX:JAG

FOR IMMEDIATE RELEASE OTCQX:JAGGF

Jaguar Mining Reports Financial Results

for the First Quarter 2023

__________________________________________________________________________________________

Toronto, May 10, 2023 – Jaguar Mining Inc. ("Jaguar" or the "Company") (TSX:JAG, OTCQX:JAGGF) today

announced financial results for the first quarter (“Q1 202 3”) ended March 31 , 2023. All figures are in US Dollars,

unless otherwise expressed.

First Quarter Highlights

• Revenue increased 17% to $3 5.8 million compared with $ 30.6 million in the first quarter of 202 2, due to an

increase in ounces produced which resulted in higher ounces sold of 19,008 ounces as compared to 16,507

ounces in the first quarter of 2022, combined with an increase in the average realized gold price of $1,886 per

ounce compared to $1,855 per ounce in the first quarter of 2022.

• Gold production increased by 9% to 18,156 ounces, compared to 16,663 ounces in the first quarter of 2022,

reflecting an increase of 12% in tonnes of ore processed, partially offset by 3% decrease in the average

recovery rate.

• Operating costs totaled $20.6 million, an increase of 5% compared to $19.6 million in the first quarter of 2022.

The increase in operating costs were predominantly the result of the increase in ounces of gold produced

compared to the first quarter of 2022.

• Cash operating costs¹ decreased 9% to $1,084 per ounce of gold sold compared to $1,188 per ounce of gold

sold in the first quarter of 2022 due to the increase in ounces of gold sold, partially offset by 5% increase i n

operating costs.

• All-in sustaining costs¹ decreased to $1,575 per ounce of gold sold, compared to $1,680 in the first quarter of

2022 due to the cash cost decrease as explained above, partially offset by higher sustaining capital

expenditures resulting from a 41% increase in primary development in the quarter of 1,259 metres compared

to 895 metres in the first quarter of 2022.

• Net income for Q1 2023 increased to $2.5 million, compared with a net loss of $6 million in Q1 2022. Major

variances included a $5.2 million increase in revenue, a $3.6 million reduction on foreign exchange loss, a $0.5

million income tax expense reduction and a $0.2 million reduction on other operating expenses, offset by $1

million increase in operating costs.

• Free cash flow¹ in the first quarter of 202 3 was $3.3 million and was based on operating cash flow plus asset

retirement obligation expenditures, less capital expenditures, compared to $2.7 million in the first quarter of

2022. Free cash flow was $176 per ounce of gold sold compared to $161 in the first quarter of 2022.

_________________________________

1 This is a Non-GAAP financial performance measure with no standard definition under IFRS. For more details, refer to the Non-

GAAP Performance Measures section of the MD&A.

2

JAGUAR MINING INC.

First Canadian Place, 100 King Street West, 56th Floor, Toronto, Ontario, Canada M5X 1C9 T: 416-847-1854

Cash Position and Working Capital1

• As of March 31, 2023, the Company had a cash and cash equivalents position of $25.8 million, compared to

$25.2 million on December 31, 2022.

• As of March 31, 2023, working capital was $20.7 million, compared to $19.5 million on December 31, 2022, which

includes $3 million in short term loans from Brazilian banks.

Vern Baker, President and CEO of Jaguar Mining stated: “ We are pleased to report our first quarter production

results which improved year -over-year as did our financial performance. Both the Pilar and Turmalina mine s

produced more ounces this quarter compared to the first quarter of 2022 . The increase in production at Pilar was

the result of an improvement in head grade with the same tonnage. The increase in production at Turmalina was

the result of a significant increase in tonnes (+25%) while experiencing a lower grade cycle within the mine. We

were also able to lower our All-In-Sustaining-Costs per ounce despite the additional tonnage and increased

development work.

During the quarter, development efforts increased at both mines. At Turmalina we completed 1,780 meters of (an

increase of 11%) and at Pilar we completed 1 ,100 meters (an increase of 8%). Development at our Faina project

continued throughout the quarter with ongoing work on engineering and planning . We expect to access the Faina

resource zone by the fourth quarter and to see development within the resource towards the end of the year and

for the full year in 2024.

Although our first quarter was challenging, we are maintaining our production and cost guidance for the year.”

_________________________________

1 This is a Non-GAAP financial performance measure with no standard definition under IFRS. For more details, refer to the Non-

GAAP Performance Measures section of the MD&A.

3

JAGUAR MINING INC.

First Canadian Place, 100 King Street West, 56th Floor, Toronto, Ontario, Canada M5X 1C9 T: 416-847-1854

First Quarter 2023 Results

Non-GAAP performance

The Company has included the following Non-GAAP performance measures in this document: cash operating costs

per ounce of gold sold, all-in sustaining costs per ounce of gold sold, average realized gold price (per ounce of gold

sold), sustaining capital expenditures, non-sustaining capital expenditures, adjusted operating cash flow, free cash

flow, earnings before interest, taxes, depreciation and amortization (EBITDA), adjusted EBITDA and working

capital. These Non-GAAP performance measures do not have any standardized meaning prescribed by IFRS and,

therefore, may not be comparable to similar measures presented by other companies.

($ thousands, except where indicated)

2023 2022

Financial Data

Revenue $ 35,844 $ 30,619

Operating costs 20,612 19,617

Depreciation 5,765 4,696

Gross profit 9,467 6,306

Net income 2,473 (6,034)

Per share ("EPS") 0.03 (0.08)

EBITDA1 11,046 1,735

Adjusted EBITDA1,2 12,487 6,786

Adjusted EBITDA per share1,2 0.17 0.09

Cash operating costs (per ounce sold)1 1,084 1,188

All-in sustaining costs (per ounce sold)1 1,575 1,680

Average realized gold price (per ounce)1 1,886 1,855

Cash generated from operating activities 10,365 7,707

Free cash flow1 3,347 2,650

Free cash flow (per ounce sold)1 176 161

Sustaining capital expenditures1 7,212 5,812

Non-sustaining capital expenditures1 2,212 4,477

Total capital expenditures 9,424 10,289

2023 2022

Operating Data

Gold produced (ounces) 18,156 16,663

Gold sold (ounces) 19,008 16,507

Primary development (metres) 1,259 895

Exploration development (metres) 216 479

Secondary development (metres) 1,405 1,247

Definition, infill, and exploration drilling (metres) 9,654 26,305

Three months ended

March 31,

1 Average realized gold price, sustaining and non-sustaining capital expenditures, cash operating costs and all-in sustaining costs, free cash flow, EBITDA and

adjusted EBITDA, and adjusted EBITDA per share are non-GAAP financial performance measures with no standard definition under IFRS. Refer to the Non-GAAP

Financial Performance Measures section of the MD&A.

2 Adjusted EBITDA excludes non-cash items such as impairment, foreign exchange,stock-based compensation and write downs. For more details refer to the

Non-GAAP Performance Measures section of the MD&A.

Three months ended

March 31,

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JAGUAR MINING INC.

First Canadian Place, 100 King Street West, 56th Floor, Toronto, Ontario, Canada M5X 1C9 T: 416-847-1854

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

investors use this information to evaluate the Company ’s performance. Accordingly, they are intend ed to provide

additional information and should not be considered in isolation or as a substitute for measures of performance

prepared in accordance with IFRS. More specifically, Management believes that these figures are a useful indicator

to investors and management of a mine ’s performance as they provide: (i) a measure of the mine ’s cash margin

per ounce, by comparison of the cash operating costs per ounce to the price of gold; (ii) the trend in costs as the

mine matures; and (iii) an internal benchmark of performance to allow for comparison against other mines. The

definitions of these performance measures and reconciliation of the Non -GAAP measures to reported IFRS

measures are outlined below.

Reconciliation of sustaining capital and non-sustaining capital expenditures1

Reconciliation of Free Cash Flow1

($ thousands)

2023 2022

Sustaining capital1

Primary development 5,159$ 3,827$

Brownfield exploration 299 397

Mine-site sustaining 1,638 1,484

Other sustaining capital2 116 104

Total sustaining capital1 7,212 5,812

Non-sustaining capital (including capital projects)1

Mine-site non-sustaining 2,018 3,774

Asset retirement obligation - non-sustaining2 194 703

Total non-sustaining capital1 2,212 4,477

Total capital expenditures 9,424$ 10,289$

Three months ended

March 31,

1 Sustaining and non-sustaining capital are non-GAAP financial measures with no standard definition under IFRS. Refer to the non-GAAP Financial

Performance Measures section of the MD&A. Capital expenditures are included in the calculation of all-in sustaining costs and all-in costs.

2 Asset retirement obligation - non-sustaining is related to expenditures with dam closing projects. Payments related to the Company asset retirement

obligation are classified as operating activities in accordance with IFRS financial measures.

($ thousands, except where indicated)

2023 2022

Cash generated from operating activities $ 10,365 $ 7,707

Adjustments

Asset Retirement Obligation 194 755

Sustaining capital expenditures2 (7,212) (5,812)

Free cash flow $ 3,347 $ 2,650

Ounces of gold sold 19,008 16,507

Free cash flow per ounce sold $ 176 $ 161

Three months ended

March 31,

1 This is a non-GAAP financial performance measure with no standard definition under IFRS.

2 Further detail on the sustaining capital expenditures composition can be found on the reconciliation of sustaining capital and non-sustaining capital

expenditures in the non-GAAP reconciliation.

5

JAGUAR MINING INC.

First Canadian Place, 100 King Street West, 56th Floor, Toronto, Ontario, Canada M5X 1C9 T: 416-847-1854

Reconciliation of Cash Operating Costs, All-In Sustaining Costs and All-In Costs per Ounce Sold1

Reconciliation of Net Income (Loss) to EBITDA and Adjusted EBITDA 1

($ thousands, except where indicated)

2023 2022

Operating costs 20,612$ 19,617$

General & administration expenses 1,701 1,777

Corporate stock-based compensation 419 522

Sustaining capital expenditures¹ 7,212 5,812

All-in sustaining cash costs 29,944 27,728

Reclamation (operating sites) - -

All-in sustaining costs 29,944$ 27,728$

Non-sustaining capital expenditures 2,212 4,477

Exploration and evaluation costs (greenfield) 987 1,522

Reclamation (non-operating sites) - 56

Care and maintenance (non-operating sites) 168 179

All-in costs 33,311$ 33,962$

Ounces of gold sold 19,008 16,507

Cash operating costs per ounce sold² 1,084$ 1,188$

All-in sustaining costs per ounce sold² 1,575$ 1,680$

All-in costs per ounce sold² 1,752$ 2,057$

Average realized gold price 1,886$ 1,855$

Cash operating margin per ounce sold 802$ 667$

All-in sustaining margin per ounce sold 311$ 175$

Three months ended

March 31,

2 Cash operating costs, all-in sustaining costs and all-in costs are all non-GAAP financial performance measures with no standard definition under IFRS. Result

may not calculate due to rounding.

1 Capital expenditures are included in the Company calculation of all-in sustaining costs and all-in costs.

($ thousands, except where indicated)

2023 2022

Net Income $ 2,473 $ (6,034)

Income tax expense 1,895 2,396

Finance costs 894 658

Depreciation and amortization 5,784 4,715

EBITDA1 $ 11,046 $ 1,735

Changes in other provisions and VAT taxes 70 (67)

Foreign exchange loss (gain) 952 4,596

Stock-based compensation 419 522

Adjusted EBITDA1 $ 12,487 $ 6,786

Weighted average outstanding shares 72,564,246 72,461,569

Adjusted EBITDA per share1 $ 0.17 $ 0.09

Three months ended

March 31,

1 This is a non-GAAP financial performance measure with no standard definition under IFRS.

6

JAGUAR MINING INC.

First Canadian Place, 100 King Street West, 56th Floor, Toronto, Ontario, Canada M5X 1C9 T: 416-847-1854

Working Capital1

Qualified Person

Scientific and technical information contained in this press release has been reviewed and approved by Jonathan

Victor Hill, BSc (Hons) (Economic Geology - UCT), FAUSIMM, Vice President Geology and Exploration, who is

also an employee of Jaguar Mining Inc., and is a "qualified person" as defined by National Instrument 43 -101

- Standards of Disclosure for Mineral Projects ("NI 43-101").

The Iron Quadrangle

The Iron Quadrangle has been an area of mineral exploration dating back to the 16th century. The discovery in

1699–1701 of gold contaminated with iron and platinum -group metals in the southeastern corner of the Iron

Quadrangle gave rise to the name of the town Ouro Preto (Black Gold). The Iron Quadrangle contains world -class

multi-million-ounce gold deposits such as Morro Velho, Cuiabá, and São Bento. Jaguar holds the third largest gold

land position in the Iron Quadrangle with just over 25,000 hectares.

About Jaguar Mining Inc.

Jaguar Mining Inc. is a Canadian -listed junior gold mining, development, and exploration company operating in

Brazil with three gold mining complexes and a large land package with significant upside exploration potential from

mineral claims. The Company's principal operating assets are located in the Iron Quadrangle, a prolific greenstone

belt in the state of Minas Gerais and include the Turmalina Go ld Mine Complex and Caeté Mining Complex (Pilar

and Roça Grande Mines, and Caeté Plant). The Company also owns the Paciência Gold Mine Complex, which has

been on care and maintenance since 2012. The Roça Grande Mine has been on temporary care and maintenance

since April 2019. Additional information is available on the Company's website at www.jaguarmining.com.

Cash and cash equivalents $ 25,809 $ 25,208

Non-cash working capital

Other current assets:

Restricted cash 672 618

Inventory 14,110 16,239

Recoverable taxes 6,555 8,545

Other accounts receivable 1,096 343

Prepaid expenses and advances 4,686 3,615

Current liabilities:

Accounts payable and accrued liabilities (16,266) (19,782)

Notes payable (3,040) (3,040)

Lease liabilities (2,498) (2,414)

Current tax liability (1,895) (1,881)

Other taxes payable (1,082) (1,056)

Reclamation provisions (3,045) (3,156)

Legal and other provisions (4,346) (3,751)

Working capital¹ $ 20,756 $ 19,488

1 This is a non-GAAP financial performance measure with no standard definition under IFRS.

($ thousands)

March 31,

2023

December 31,

2022

7

JAGUAR MINING INC.

First Canadian Place, 100 King Street West, 56th Floor, Toronto, Ontario, Canada M5X 1C9 T: 416-847-1854

For further information please contact:

Vernon Baker

Chief Executive Officer

Jaguar Mining Inc.

[email protected]

416-847-1854

Forward-Looking Statements

Certain statements in this news release constitute "forward -looking information" within the meaning of applicable Canadian securities

legislation. Forward-looking statements and information are provided for the p urpose of providing information about management's

expectations and plans relating to the future. All of the forward -looking information made in this news release is qualified by the

cautionary statements below and those made in our other filings with the securities regulators in Canada. Forward-looking information

contained in forward -looking statements can be identified by the use of words such as "are expected," "is forecast," "is targeted,"

"approximately," "plans," "anticipates," "projects," "anticipates," "continue," "estimate," "believe" or variations of such words and phrases

or statements that certain actions, events or results "may," "could," "would," "might," or "will" be taken, occur or be achie ved. All

statements, other than statements of historical fact, may be considered to be or include forward-looking information. This news release

contains forward-looking information regarding, among other things, expected sales, production statistics, ore grades, tonnes milled,

recovery rates, cash operatin g costs, definition/delineation drilling, the timing and amount of estimated future production, costs of

production, capital expenditures, costs and timing of the development of projects and new deposits, success of exploration, development

and mining activities, currency fluctuations, capital requirements, project studies, mine life extensions, restarting suspended or disrupted

operations, continuous improvement initiatives, and resolution of pending litigation. The Company has made numerous assumptio ns

with respect to forward-looking information contained herein, including, among other things, assumptions about the estimated timeline

for the development of its mineral properties; the supply and demand for, and the level and volatility of the price of, gold ; the accuracy

of reserve and resource estimates and the assumptions on which the reserve and resource estimates are based; the receipt of

necessary permits; market competition; ongoing relations with employees and impacted communities; political and legal developments

in any jurisdiction in which the Company operates being consistent with its current expectations including, without limitation, the impact

of any potential power rationing, tailings facility regulation, exploration and mine operating licenses and permits being obtained and

renewed and/or there being adverse amendments to mining or other laws in Brazil and any changes to general business and economic

conditions. Forward-looking information involves a number of known and unknown risks and uncertainties, including among others: the

risk of Jaguar not meeting the forecast plans regarding its operations and financial performance; uncertainties with respect to the price

of gold, labour disruptions, mechanical failures, increase in costs, environmenta l compliance and change in environmental legislation

and regulation, weather delays and increased costs or production delays due to natural disasters, power disruptions, procurement and

delivery of parts and supplies to the operations; uncertainties inhere nt to capital markets in general (including the sometimes volatile

valuation of securities and an uncertain ability to raise new capital) and other risks inherent to the gold exploration, deve lopment and

production industry, which, if incorrect, may cause actual results to differ materially from those anticipated by the Company and

described herein. In addition, there are risks and hazards associated with the business of gold exploration, development, min ing and

production, including environmental hazards, tailings dam failures, industrial accidents and workplace safety problems, unusual or

unexpected geological formations, pressures, cave-ins, flooding, chemical spills, procurement fraud and gold bullion thefts and losses

(and the risk of inadequate insurance, or the inability to obtain insurance, to cover these risks). Accordingly, readers should not place

undue reliance on forward-looking information.

For additional information with respect to these and other factors and assumptions underlying the forward-looking information made in

this news release, see the Company's most recent Annual Information Form and Management's Discussion and Analysis, as well as

other public disclosure documents that can be accessed under the issuer profile of "Jaguar Mining Inc." on SEDAR at www.sedar.com.

The forward-looking information set forth herein reflects the Company's reasonable expectations as at the date of this news release

and is subject to change after such date. The Company disclaims any intention or obligation to update or revise any forward -looking

information, whether as a result of new information, future events or otherwise, other than as required by law. The forward -looking

information contained in this news release is expressly qualified by this cautionary statement.

8

JAGUAR MINING INC.

First Canadian Place, 100 King Street West, 56th Floor, Toronto, Ontario, Canada M5X 1C9 T: 416-847-1854

Non-IFRS Measures

This news release provides certain financial measures that do not have a standardized meaning prescribed by IFRS. Readers are

cautioned to review the below stated footnotes where the Company expands on its use of non-IFRS measures.

1. Cash operating costs and cash operating cost per ounce are non-IFRS measures. In the gold mining industry, cash operating costs and

cash operating costs per ounce are common performance measures but do not have any standardized meaning. Cash operating costs

are derived from amounts included in the Consolidated Statements of Comprehensive Income (Loss) and include mine -site operating

costs such as mining, processing and administration, as well as royalty expenses, but exclude depreciation , depletion, share-based

payment expenses, and reclamation costs. Cash operating costs per ounce are based on ounces produced and are calculated by

dividing cash operating costs by commercial gold ounces produced; US$ cash operating costs per ounce produce d are derived from

the cash operating costs per ounce produced translated using the average Brazilian Central Bank R$/US$ exchange rate. The Company

discloses cash operating costs and cash operating costs per ounce, as it believes those measures provide va luable assistance to

investors and analysts in evaluating the Company's operational performance and ability to generate cash flow. The most direct ly

comparable measure prepared in accordance with IFRS is total production costs. A reconciliation of cash operating costs per ounce to

total production costs for the most recent reporting period, the quarter ended March 31, 2023, is set out in the Company's first quarter

2023 Management Discussion and Analysis (MD&A) filed on SEDAR at www.sedar.com.

2. All-in sustaining cost is a non-IFRS measure. This measure is intended to assist readers in evaluating the total costs of producing gold

from current operations. While there is no standardized meani ng across the industry for this measure, except for non -cash items the

Company's definition conforms to the all -in sustaining cost definition as set out by the World Gold Council in its guidance note dated

June 27, 2013. The Company defines all -in sustaining cost as the sum of production costs, sustaining capital (capital required to

maintain current operations at existing levels), corporate general and administrative expenses, and in -mine exploration expenses. All-

in sustaining cost excludes growth capital, reclamation cost accretion related to current operations, interest and other financing costs,

and taxes. A reconciliation of all -in sustaining cost to total production costs for the most recent reporting period, the quarter ended

March 31, 2023, is set out in the Company's first quarter 2023 MD&A filed on SEDAR at www.sedar.com.