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Jaguar Mining Reports Second Quarter 2023 Results and Provides Corporate Update __________________________________________________________________________________________

Financials

1

JAGUAR MINING INC.

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

JAGUAR MINING REPORTS SECOND QUARTER 2023 RESULTS AND PROVIDES

CORPORATE UPDATE

__________________________________________________________________________________________

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

today announced financial and operating results for the second quarter ended June 30, 2023. All figures are in US

Dollars, unless otherwise expressed.

Second Quarter Highlights

• Operating cash flow was $10 million, compared to $9.4 million in the second quarter of 2022, mainly due to an

increase of 6% in the average realized gold price1, combined with an 8% decrease in operating costs, and lower

cash income taxes paid of $1.9 million, compared to $2.4 million in the second quarter of 2022. This was

partially offset by a 17% decrease in ounces of gold sold from 20,482 ounces the second quarter of 2022 to

16,917 ounces in the second quarter of 2023.

• Free cash flow¹ of $2.4 million and was based on operating cash flow plus asset retirement obligation

expenditures, less capital expenditures, compared to $5.5 million in Free Cash Flow in the second quarter of

2022. Free cash flow was $141 per ounce of gold sold compared to $270 per ounce of gold sold in the second

quarter of 2022.

• Total capital expenditures were 4% or $0.43 million higher in the second quarter compared to the same period

in 2022 with sustaining capital expenditures $3.7 million higher offset by non -sustaining capital expenditures

which were $3.3 million lower. Sustaining capital expenditures of $8.3 million in the quarter consisted of $5.5

million in primary development, $2.2 million in equipment, $0.5 million in brownfield exploration, and $0.1 million

of other sustaining capital.

• Revenue decreased 12% to $33.2 million compared with $37.9 million in the second quarter of 2022, mainly

due to a decrease in ounces produced, which resulted in lower ounces of gold sold of 16,917 ounces as

compared to 20,482 ounces in the second quarter of 2022, partially offset by an increase in the average realized

gold price of $1,962 per ounce compared to $1,852 per ounce in the second quarter of 2022.

• Gold production decreased 24% to 16,750 ounces compared to 22,028 ounces in the second quarter of 2022,

due to a 15% decrease in the average head grade, combined with an 11% decrease in tonnes of ore processed.

• Operating costs decreased 8% to $19.5 million compared to $21.1 million in the second quarter of 2022. The

decrease in operating costs was predominantly the result of decrease in tonnes mined compared to second

quarter of 2022.

• Cash operating costs¹ increased 12% to $1,150 compared to $1,029 per ounce of gold sold in the second

quarter of 2022 due to a 17% decrease in ounces of gold sold compared to the second quarter of 2022.

• All-in sustaining costs¹ increased to $1,781 compared to $1,366 per ounce of gold sold in the second quarter

of 2022 due to the cash cost increase as explained above, combined with higher sustaining capital expenditures

the result of a 20% increase in primary development plus exploration development in the quarter of 1,955

metres compared to 1,627 metres in the second quarter of 2022.

• Net loss of $1.1 million, compared to Net Income of $9.5 million in the second quarter of 2022. Major variances

included a $4.7 million decrease in revenue, a $5.6 million increase in foreign exchange expenses, an increase

of $1.3 million in income tax expense, offset by $1.6 million decrease in operating costs .

_________________________________

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 June 30, 2023, the Company had a cash and cash equivalents position of $2 3.9 million, compared to

$25.2 million on December 31, 2022.

• As of June 30, 2023, working capital was $17.5 million, compared to $19.5 million on December 31, 2022, which

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

Vern Baker, President an d CEO of Jaguar Mining stated: “ The Company faced another difficult quarter as both

mines encountered issues with dynamic orebodies leading to lower grades and tonnes than was expected in the

areas we mined. At the Pilar mine, both tonnes and grade were im pacted by rapid geometry changes in the main

orebody. The Pilar mining team has adapted plans to flatter dips, narrower ore widths, and extended strike lengths.

At the Turmalina mine, the team has increased sampling and drilling to improve the grade mined. Development

rates continued to be strong at both mines during the quarter as we are working to position the mines with an

increasing number of headings to drive production up.

We have also implemented cost reduction measures which have begun to take effect reducing our operating costs.

These initiatives will continue in the second half of the year.

While the strengthening Brazilian Real impacted our costs and income during the quarter, we continue to have a

strong balance sheet and are well positioned to execute our improvement plans.

Finally, I am very excited to announce the appointment of Alfred Colas as Chief Financial Officer of Jaguar Mining.

His background and extensive experience in mining and project development makes him a good fit for our

Company. We know Alfred will be a great contributor to unlocking the value of our gold assets ".

Corporate Updates

• On August 1, 2023, the Company announced it had entered into a share purchase agreement to purchase and

assume from a subsidiar y of IAMGOLD Corporation, the Pitangui Project and the remaining interest in the

Acurui Project, two gold mineral exploration projects located in Brazil which are close in proximity to the

Company’s MTL Complex and Paciencia Complex. Following completion of the Transaction, the Company will

hold a 100% ownership in the Pitangui Project and the Acurui Project.

• The Company is also pleased to announce the appointment of Mr. Alfred Colas as Chief Financial Officer. Mr.

Colas is a seasoned finance executive with over 20 years of experience with publicly listed mining and forestry

companies and five years of experience in private -equity real estate. Mr. Colas spent over 13 years in

progressively senior finance roles with Barrick Gold Corp, culminating in his 2007 assignment as finance

manager at the Veladero Mine in Argentina, where he was a seminal part of the team that successfully turned

around the operation. From 2010 -2013, he was controller of Rainy River Resources, following which he was

VP and CFO of FNI Min ing. In 2015, Mr. Colas joined Potenia Solar as CFO and, after its sale, he continued

as CFO of a family office focusing on senior -care investments. Later, Mr. Colas served as CFO of dual-listed

silver producer, Excellon Resources, and most recently, he was CFO of GreenFirst Forest Products. Mr. Colas

holds a Bachelor of Commerce degree from the University of Toronto, and he obtained his CA/CPA designation

in 1995, having started his career in 1992 as an auditor with Price Waterhouse.

_________________________________

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

Second 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.

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

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

($ thousands, except where indicated)

2023 2022 2023 2022

Financial Data

Revenue $ 33,192 $ 37,927 $ 69,036 $ 68,546

Operating costs 19,462 21,075 40,074 40,692

Depreciation 6,220 4,866 11,986 9,561

Gross profit 7,510 11,986 16,976 18,293

Net (loss) income (1,101) 9,478 1,371 3,444

Per share ("EPS/LPS") (0.02) 0.13 0.02 0.05

EBITDA1 7,415 15,177 18,462 16,911

Adjusted EBITDA1,2 10,554 12,535 23,039 19,321

Adjusted EBITDA per share1,2 0.15 0.17 0.32 0.27

Cash operating costs (per ounce sold)1 1,150 1,029 1,115 1,100

All-in sustaining costs (per ounce sold)1 1,781 1,366 1,672 1,506

Average realized gold price (per ounce)1 1,962 1,852 1,922 1,853

Cash generated from operating activities 9,973 9,440 20,339 17,147

Free cash flow1 2,378 5,535 5,724 8,133

Free cash flow (per ounce sold)1 141 270 159 220

Sustaining capital expenditures1 8,306 4,612 15,519 10,425

Non-sustaining capital expenditures1 3,539 6,805 5,750 11,284

Total capital expenditures 11,845 11,417 21,269 21,709

Six months ended

June 30,

Three months ended

June 30,

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.

2023 2022 2023 2022

Operating Data

Gold produced (ounces) 16,750 22,028 34,906 38,691

Gold sold (ounces) 16,917 20,482 35,925 36,989

Primary development (metres) 1,552 731 2,810 1,626

Exploration development (metres) 403 896 619 1,375

Secondary development (metres) 1,238 1,221 2,644 2,467

Definition, infill, and exploration drilling (metres) 10,420 30,631 22,325 56,936

Three months ended

June 30,

Six months ended

June 30,

4

JAGUAR MINING INC.

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

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 rep orted IFRS

measures are outlined below.

Reconciliation of sustaining capital and non-sustaining capital expenditures1

Reconciliation of Free Cash Flow1

($ thousands)

2023 2022 2023 2022

Sustaining capital1

Primary development 5,543$ 3,221$ 10,704$ 7,048$

Brownfield exploration 488 239 787 636

Mine-site sustaining 2,152 1,061 3,791 2,545

Engineering - - - -

Equipment 2,152 1,061 3,791 2,545

Other sustaining capital2 123 91 237 196

Total sustaining capital1 8,306 4,612 15,519 10,425

Non-sustaining capital (including capital projects)1

Mine-site non-sustaining 2,828 6,098 4,846 9,873

Asset retirement obligation - non-sustaining2 711 707 904 1,411

Total non-sustaining capital1 3,539 6,805 5,750 11,284

Total capital expenditures 11,845$ 11,417$ 21,269$ 21,709$

Three months ended

June 30,

Six months ended

June 30,

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 2023 2022

Cash generated from operating activities $ 9,973 $ 9,440 $ 20,339 $ 17,147

Adjustments

Asset Retirement Obligation 711 707 904 1,411

Sustaining capital expenditures2 (8,306) (4,612) (15,519) (10,425)

Free cash flow $ 2,378 $ 5,535 $ 5,724 $ 8,133

Ounces of gold sold 16,917 20,482 35,925 36,989

Free cash flow per ounce sold $ 141 $ 270 $ 159 $ 220

Three months ended

June 30,

Six months ended

June 30,

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 2023 2022

Operating costs 19,462$ 21,075$ 40,074$ 40,692$

General & administration expenses 1,988 1,850 3,689 3,627

Corporate stock-based compensation 377 447 795 970

Sustaining capital expenditures¹ 8,306 4,612 15,519 10,425

All-in sustaining cash costs 30,133 27,984 60,077 55,714

Reclamation (operating sites) - - 1 8

All-in sustaining costs 30,133$ 27,984$ 60,078$ 55,722$

Non-sustaining capital expenditures 3,539 6,805 5,750 11,284

Exploration and evaluation costs (greenfield) 944 1,599 1,931 3,120

Reclamation (non-operating sites) - 1 1 57

Care and maintenance (non-operating sites) 174 132 343 311

All-in costs 34,790$ 36,521$ 68,103$ 70,494$

Ounces of gold sold 16,917 20,482 35,925 36,989

Cash operating costs per ounce sold² 1,150$ 1,029$ 1,115$ 1,100$

All-in sustaining costs per ounce sold² 1,781$ 1,366$ 1,672$ 1,506$

All-in costs per ounce sold² 2,057$ 1,783$ 1,896$ 1,906$

Average realized gold price 1,962$ 1,852$ 1,922$ 1,853$

Cash operating margin per ounce sold 812$ 823$ 807$ 753$

All-in sustaining margin per ounce sold 181$ 486$ 250$ 347$

Three months ended

June 30,

Six months ended

June 30,

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 2023 2022

Net Income (Loss) $ (1,101) $ 9,478 $ 1,371 $ 3,444

Income tax expense 1,521 146 3,417 2,542

Finance costs 757 668 1,651 1,326

Depreciation and amortization 6,238 4,885 12,023 9,599

EBITDA1 $ 7,415 $ 15,177 $ 18,462 $ 16,911

Changes in other provisions and VAT taxes 359 90 428 23

Foreign exchange loss (gain) 2,403 (3,179) 3,354 1,417

Stock-based compensation 377 447 795 970

Adjusted EBITDA1 $ 10,554 $ 12,535 $ 23,039 $ 19,321

Weighted average outstanding shares 72,715,206 72,465,756 72,640,143 72,463,674

Adjusted EBITDA per share1 $ 0.15 $ 0.17 $ 0.32 $ 0.27

Three months ended

June 30,

Six months ended

June 30,

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 Gold 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 $ 23,865 $ 25,208

Non-cash working capital

Other current assets:

Restricted cash 917 618

Inventory 14,717 16,239

Recoverable taxes 7,645 8,545

Other accounts receivable 430 343

Prepaid expenses and advances 3,312 3,615

Current liabilities:

Accounts payable and accrued liabilities (17,937) (19,782)

Notes payable (3,067) (3,040)

Lease liabilities (2,506) (2,414)

Current tax liability (1,521) (1,881)

Other taxes payable (975) (1,056)

Reclamation provisions (2,949) (3,156)

Legal and other provisions (4,385) (3,751)

Working capital¹ $ 17,546 $ 19,488

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

($ thousands)

June 30,

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 purpose of providing information about management's

expectations and pla ns 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 operating costs, definition/delineation drilling, the timing and amount of esti mated 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 obt ained 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, environmental compliance and change in environmental leg islation

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 inherent to capital markets in general (including the sometim es volatile

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

production industry, which, if incorrect, may cause actual results to differ materially from those anticipated by the Compa ny 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 proble ms, 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). Accord ingly, 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 Consoli dated 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 produced are derived fro m

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 valuable assistance to

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

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 June 30. 2023, is set out in the Company's second 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 meaning 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 re quired 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 a nd 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 June

30. 2023, is set out in the Company's second quarter 2023 MD&A filed on SEDAR at www.sedar.com.