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1Refer to Non -IFRS Financial Measures section at the end of this news release and to the MD&A accompanying the Company’s financial statements filed on

Financials

NEWS RELEASE

1Refer to Non -IFRS Financial Measures section at the end of this news release and to the MD&A accompanying the Company’s financial statements filed on

SEDAR+ at www.sedarplus.ca for a description of the calculation of these measures.

2 Excluding letters of credit

3 Au Eq includes gold, silver, lead and zinc and is calculated using the following metal prices: $2,490/oz Au, $29.4/oz Ag, $2,040/t Pb, and $2,782/t Zn for Q3

2024; $2,334/oz Au, $29.1/oz Ag, $2,157/t Pb and $2,835/t Zn or Au:Ag = 1:80.19, Au:Pb = 1:1.08, Au:Zn = 1:0.82 for Q2 2024. And the following metal prices

for YTD Q3-2024 $2,307/oz Au, $27.1/oz Ag, $2,091/t Pb, and $2,692/t Zn

Fortuna reports record earnings for the third quarter of 2024

(All amounts are expressed in US dollars, tabular amounts in millions, unless otherwise stated)

Vancouver, November 6, 202 4: Fortuna Mining Corp . (NYSE: FSM | TSX: FVI) (“Fortuna” or the

“Company”) today reported its financial and operating results for the third quarter of 2024.

“In the third quarter, a focus on cost discipline and safe operations allowed Fortuna to capture the benefit

of rising metal prices and achieve record attributable earnings of $50.5 million and record operating cash

flow before working capital changes of $119.3 million.” said Jorge Ganoza, Fortuna’s President and CEO.

Mr. Ganoza continued, “Our mines delivered 110,820 ounces of gold equivalent production at a cash cost

per ounce of $1,05 9 as we remain well positioned to finish the year within our cost and production

guidance.” Mr. Ganoza added, “The Company also achieved a key milestone with a positive net cash

position at the end of the quarter and we recently renegotiated our credit facility reducing financial costs

and providing additional financial flexibility.”

Third Quarter 2024 highlights

Financial

• Attributable net income of $50.5 million or $0.16 per share, compared to $40.6 million or $0.13

per share in Q2 2024

• Adjusted attributable net income1 of $49.9 million or $0.16 per share, compared to $30.4 million

or $0.10 per share in Q2 2024

• Generated $119.3 million (or $0.38 per share) of cash flow from operations before working capital

changes, and free cash flow from ongoing operations1 of $56.6 million, compared to $93.0 million

(or $0.30 per share) and $38.6 million, respectively, in Q2 2024

• As at the end of the quarter , the Company had a cash position of $180.6 million and achieved a

positive net cash 1 position of $8.0 million . Liquidity increased to $430.6 million from $355.6

million at the end of Q2 2024

• Subsequent to the end of the quarter, the Company resized its revolving credit facility from $250.0

million to $150.0 million and increased the uncommitted accordion to $75 .0 million from $50.0

million reducing its reliance on bank debt. The revolving debt facility remains fully undrawn2

Fortuna | 2

Operational

• Gold equivalent3 production of 110,820 ounces, compared to 116,570 ounces in Q 2 2024. Nine

month gold equivalent production of 339,933 ounces, aligned to meet annual guidance of 457 to

497 koz . For full details refer to our News Release titled “ Fortuna reports solid production of

110,820 gold equivalent ounces for the third quarter of 2024” dated October 10, 2024

• Consolidated cash costs 1 per ounce of gold equivalent sold of $1,059 for the quarter and $977

year to date remain largely aligned with annual guidance of $935 to $1,055; adjusting for San Jose,

which is mining its last year of Mineral Reserves, consolidated cash costs were $935 for the

quarter

• Consolidated all-in sustaining cash costs (AISC)1 per ounce of gold equivalent sold of $1,696 for

the quarter and $1,618 year to date, are tracking at the upper end of annual guidance of $1,485

to $1,640; adjusting for San Jose, consolidated AISC was $1,594 . The leach-pad expansion for

Lindero is a one -time $42 million capital project in 2024 set for completion in Q4 and weighs

approximately $90 per ounce on our annual consolidated AISC

• The Company recorded one lost time injury in the quarter and a year -to-date total recordable

injury frequency rate of 1.37

Growth and Development

• At the newly discovered Kingfisher prospect at the Séguéla Mine the Company intersected 14.2

g/t gold over 16.8 meters. For full details refer to our News Release titled “Fortuna intersects

14.2g/t Au over 16.8 meter at the Kingfisher prospects, Séguéla Mine, Côte d’Ivoire” dated

September 10, 2024

• Exploration continued at the Diamba Sud exploration project with an intersect of 6.9 g/t gold over

33.3 meters at the Western Splay prospect. For full details refer to our News Release titled

“Fortuna intersects 6. 9g/t Au over 33.3. meters at the Diamba Sud Project, Senegal” dated

September 12, 2024

Fortuna | 3

Third Quarter 2024 Consolidated Results

Three months ended September

30,

Nine months ended September

30,

(Expressed in millions) 2024 2023 % Change 2024 2023 % Change

Sales 274.9 243.1 13% 759.8 577.1 32%

Mine operating income 86.9 65.9 32% 236.8 138.2 71%

Operating income 72.7 45.4 60% 175.2 77.0 128%

Attributable net income 50.5 27.5 84% 117.4 41.5 183%

Attributable income per share - basic 0.16 0.09 78% 0.38 0.14 171%

Adjusted attributable net income1 49.9 29.6 69% 107.3 44.3 142%

Adjusted EBITDA1 131.3 104.6 26% 339.1 214.0 58%

Net cash provided by operating activities 92.9 106.5 (13%) 215.4 191.8 12%

Free cash flow from ongoing operations1 56.6 70.0 (19%) 107.3 87.3 23%

Cash cost ($/oz Au Eq)1 1,059 814 30% 977 887 10%

All-in sustaining cash cost ($/oz Au Eq)1 1,696 1,313 29% 1,618 1,508 7%

Capital expenditures2

Sustaining 38.4 27.2 41% 94.1 89.3 5%

Non-sustaining3 12.3 1.3 846% 38.8 3.4 1,041%

Séguéla construction - 1.9 (100%) - 50.0 (100%)

Brownfields (0.5) 3.3 (115%) 9.0 10.7 (16%)

As at

September

30, 2024

December

31, 2023 % Change

Cash and cash equivalents 180.6 128.1 41%

Net liquidity position (excluding letters of credit) 430.6 213.1 102%

Shareholder's equity attributable to Fortuna shareholders 1,420.4 1,238.4 15%

1 Refer to Non-IFRS Financial Measures section at the end of this news release and to the MD&A accompanying the Company’s financial

statements filed on SEDAR+ at www.sedarplus.ca for a description of the calculation of these measures.

2 Capital expenditures are presented on a cash basis

3 Non-sustaining expenditures include greenfields exploration

Figures may not add due to rounding

Third Quarter 2024 Results

Cash Costs and AISC

Consolidated cash cost per equivalent gold ounce was $1,05 9, compared to $814 in the third quarter of

2023. The increase in cash cost is explained mainly by lower stripping and mining costs during Séguéla’s

first quarter of operations in Q3 2023; lower head grades and throughput at San Jose in its last year of

Mineral Reserves; higher cash costs per ounce at Yaramoko related to lower head grades and higher

mining and indirect costs. Cash cost per ounce for the quarter and for the year remain largely aligned with

annual guidance.

All-in sustaining costs per gold equivalent ounce was $1,69 6 for the third quarter of 2024 compared to

$1,313 for the third quarter of 2023. The increase was primarily the result of higher sustaining capital at

Lindero related to the expansion of the leach-pad, and higher cash cost per ounce as described above.

Fortuna | 4

AISC Performance vs 2024 Guidance

All-in sustaining costs per gold equivalent ounce sold for the nine months ending September 30, 2024 was

$1,618 and is expected to be at the higher end of guidance for the year as a result of the following:

• Real currency appreciation of the Argentine Peso increasing Lindero’s cash costs by 9%

• Increased sustaining capital costs to accelerate 2025 development at Yaramoko to access newly

identified mineral resources

• Lower production compared to plan at San Jose due to operational challenges in its last year of

reserves

The Company has several continuous improvement initiatives in place. Some of the key ongoing projects

are:

• Séguéla process optimization: In Q3 2024 Séguéla achieved 35% higher throughput than

nameplate capacity, and 20% higher than our 2024 mine plan. This increase already exceeds the

capacity expansion scheduled in the technical report for 2026. The expansion has been achieved

with minimal capex.

• Lindero: Several productivity and cost reduction projects representing annual incremental profit

of $16 million (pre-tax) consisting mainly of the following: increased gold recovery from grind size

optimization, ADR plant incremental flow, haulage fleet optimization, and conversion from diesel

power generation to solar.

Attributable Net Income and Adjusted Attributable Net Income

Net income attributable to Fortuna for the quarter was $ 50.5 million compared to $ 27.5 million in Q 3

2023. After adjusting for non -cash and non -recurring items, adjusted attributable net income for the

quarter was $49.9 million compared to $29.6 million in Q3 2023.

The increase in net income and adjusted net income was explained mainly by higher realized gold and

silver prices partially offset by lower gold sales volume and higher costs per ounce. The realized gold and

silver prices were $2,490 and $29.4 per ounce respectively compared to $1,92 5 and $23.7 per ounce,

respectively, for the comparable period in the prior year. The decrease in gold sales volume was primarily

due to lower production at Yaramoko and San Jose as per the mine plans. The higher cost per ounce was

primarily at Séguéla, San Jose and Yaramoko as described above.

Adjusted net income for the quarter also benefited from $3.4 million of foreign exchange gains related to

the appreciation of the Euro during the quarter, $3. 2 million of investment income related to cross -

border, Argentine pesos denominated bond trades, and lower interest expenses.

Depreciation and Depletion

Depreciation and depletion for the third quarter of 2024 was $59.3 million compared to $63.4 million in

the comparable period. The decrease in depreciation and depletion was primarily the result of lower

depreciation and depletion at San Jose due to an impairment charge in the fourth quarter of 2023 and

lower depletion per ounce in the 55 Zone at Yaramoko, partially offset by higher depletion at Séguéla.

Depletion at Séguéla in the quarter includes $16.8 million of the purchase price related to the acquisition

of Roxgold Inc in 2021.

Fortuna | 5

Cash Flow

Net cash generated by operations for the quarter was $ 92.9 million compared to $106. 5 million in Q3

2023. Excluding changes in working capital, net cash from operations was $119.3 million compared to

$106.2 million in the comparative period. The increase of $13.1 million reflects higher adjusted EBITDA of

$25.8 million offset mainly by higher taxes paid of $8.9 million mostly at Séguéla.

Negative working capital for the quarter of $ 26.4 million was due to an increase of $24.5 million in

receivables primarily due to the timing of trade receivables and VAT collection. At the end of the quarter

the balance of VAT receivables at Yaramoko was $45.0 million.

In the third quarter of 2024 capital expenditures on a cash basis amounted to $50.2 million consisting of

$37.9 million of sustaining capital, including brownfields exploration, and $12.3 million of non-sustaining

capital. Year to date capital expenditures were $141.9 million consisting of $103.1 million of sustaining

capital and $38.8 million non-sustaining capital.

Free cash flow from ongoing operations for the quarter was $56. 6 million, compared to $70.0 million in

the comparable period. The decrease in free cash flow, despite higher metal prices in the quarter, is

explained mainly by negative working capital of $ 26.4 million compared to $nil in the third quarter of

2023, capital expenditures for the Lindero leach pad expansion and higher taxes paid due to the third and

final tax installment at Séguéla for 2023 taxes. The comparable period also had a number of one -time

benefits that lowered the cost of production at Séguéla.

General and Administrative Expenses

General and administrative expenses for the current quarter of $16. 0 million were 10% higher than the

same period in 2023 due mainly to higher share -based compensation expenses. G&A comprises the

following items:

Three months ended September 30, Nine months ended September 30,

(Expressed in millions) 2024 2023 % Change 2024 2023 % Change

Mine G&A 9.9 8.4 18% 26.6 20.5 30%

Corporate G&A 3.9 5.5 (29%) 19.8 19.7 1%

Share-based payments 2.1 0.5 320% 10.1 3.8 166%

Workers' participation 0.1 0.2 (50%) 0.2 0.2 0%

Total 16.0 14.6 10% 56.7 44.2 28%

Liquidity

The Company’s total liquidity available as of September 30, 2024 was $430.6 million comprised of $180.6

million in cash and cash equivalents, and the fully undrawn $250.0 million revolving credit facility

(excluding letters of credit). Effective October 31, 2024, the Company amended its credit facility reducing

the amount of the facility to $150 million from $250 million (the facility would have stepped down to $175

million in November 2024), and increased the uncommitted accordion option from $50 million t o $75

million. An improved pricing grid and covenant flexibility was negotiated under the amended facility.

Fortuna | 6

Séguéla Mine, Côte d’Ivoire

Three months ended September 30, Nine months ended September 30,

2024 2023 2024 2023

Mine Production

Tonnes milled 418,390 310,387 1,131,684 419,992

Average tonnes crushed per day 4,548 3,695 4,115 2,762

Gold

Grade (g/t) 2.69 3.83 2.94 3.28

Recovery (%) 92 93 93 94

Production (oz) 34,998 31,498 102,537 35,521

Metal sold (oz) 33,816 35,503 101,369 35,503

Realized price ($/oz) 2,494 1,927 2,305 1,927

Unit Costs

Cash cost ($/oz Au)1 655 397 559 397

All-in sustaining cash cost ($/oz Au)1 1,176 788 1,073 788

Capital Expenditures ($000's)2

Sustaining 5,992 3,147 14,827 3,147

Sustaining leases 2,332 3,044 7,034 3,044

Non-sustaining 4,797 - 14,437 -

Brownfields 187 - 6,273 -

1 Cash cost and All-in sustaining cash cost are non-IFRS financial measures. Refer to Non-IFRS Financial Measures.

2 Capital expenditures are presented on a cash basis

During the third quarter of 2024, mine production totaled 484,050 tonnes of ore, averaging 2.48 g/t Au,

and containing an estimated 38,661 ounces of gold from the Antenna, Ancien and Koula pits. Movement

of waste during the quarter totaled 2,935,335 tonnes , for a strip ratio of 6:1. Production was mainly

focused from the Antenna pit which produced 412,063 tonnes of ore, with the balance of production

sourced from the Koula and Ancien pits.

In the third quarter of 2024, Séguéla processed 418,390 tonnes, producing 34,998 ounces of gold, at an

average head grade of 2.69 g/t Au, an 11% increase and 30% decrease, respectively, compared to the third

quarter in 2023. The decrease in gold grade is in line with the planned mining sequence. Plant throughput

for the quarter averaged 208 tonnes per hour (tph), 35% higher than name plate design capacity of 154

tph. The power outages that were experienced in the second quarter did not affect processing pla nt

operations in the third quarter and enabled an increase in the tonnes processed. However, a failure of the

drive shaft of the main apron feeder in early July required a repair which reduced throughput rates while

the repairs were completed. Throughput r ates were subsequently increased, averaging 216 tph in

September.

The cash cost per gold ounce sold was $655 for the quarter ended September 30, 2024, compared to $397

in the same period of 2023. The increase is explained by the higher head grade and low -cost production

associated with Séguéla´s first quarter of operations in the comparative period. The lower cost of

production was mostly related to low-strip mining, shorter haulage, and lower maintenance costs.

The all-in sustaining cash cost per gold ounce sold was $1,176 for the quarter ending September 30, 2024,

an increase from $788 for the same period in 2023. This increase is due to increased cash costs and

increased sustaining capital expenditures in 2024 for stripping activities.

Fortuna | 7

Looking forward into 2025, the Séguéla mine plans to operate at approximately 35 percent higher

throughput rate compared to nameplate design, and at a stripping ratio closer to the Mineral Reserve

average of 13:1 compared to 6:1 year to date . The higher throughput achieved through optimization

initiatives in 2024 has not required any material capital expenditures . As a result of sustained higher

production rates, the mine will correspondingly face an acceleration of infrastructure requirements in the

approximate amount of $10 million above 2024 infrastructure capex figures. These capital projects are

primarily related to the early expansion of the tailings storage facility , relocation of the Sunbird

communications tower for development of the Sunbird pit, and land access to new mineral deposits and

related compensation payments. Management anticipates that advancing these infrastructure projects

will unlock annual target production rates of between 140k to 200k ounces in our life of mine plans.

Fortuna | 8

Yaramoko Mine, Burkina Faso

Three months ended September 30, Nine months ended September 30,

2024 2023 2024 2023

Mine Production

Tonnes milled 123,754 137,281 352,864 421,133

Gold

Grade (g/t) 6.71 7.72 7.92 6.52

Recovery (%) 98 99 98 98

Production (oz) 28,006 34,036 86,630 89,476

Metal sold (oz) 27,995 33,971 86,621 89,448

Realized price ($/oz) 2,474 1,932 2,304 1,932

Unit Costs

Cash cost ($/oz Au)1 974 753 876 764

All-in sustaining cash cost ($/oz Au)1 1,373 1,213 1,379 1,429

Capital Expenditures ($000's)2

Sustaining 5,381 9,451 20,112 37,318

Sustaining leases 1,002 1,161 3,069 3,681

Non-sustaining 2,463 – 4,005 –

Brownfields (1,217) 1,447 1,543 3,656

1 Cash cost and All-in sustaining cash cost are non-IFRS financial measures; refer to non-IFRS financial measures section at the end of this news

release and to the MD&A accompanying the Company’s financial statements filed on SEDAR+ at www.sedarplus.ca for a description of the

calculation of these measures.

2 Capital expenditures are presented on a cash basis.

In the third quarter of 2024, 123,754 tonnes of ore were treated at an average head grade of 6.71 g/t Au,

producing 28,006 ounces of gold. This represents a 13% decrease in grade and an 18% decrease in

production, when compared to the same period in 2023. The gold grade was lower than predicted in the

mine plan due to continuing development operations providing lower grade ore and the milling of

supplementary low-grade stockpiles.

During the quarter, 80,740 tonnes of ore were mined averaging 7.41 g/t Au from the 55 Zone, and 21,905

tonnes of ore averaging 9.02 g/t Au from QV Prime, totaling 102,645 tonnes averaging 7.75 g/t Au.

The cash cost per ounce of gold sold for the quarter ended September 30, 2024, was $974, compared to

$753 in the same period in 2023. The increase for the quarter is mainly attributed to higher mining and

indirect costs and lower volume of ounces sold due to lower grades.

The all-in sustaining cash cost per gold ounce sold was $1,373 for the quarter ended September 30, 2024,

compared to $1,213 in the same period of 2023. The increase in the quarter was primarily due to higher

cash costs described above, and a change in the royalty regime in Burkina Faso which increased the royalty

rate from 5% to 7% when the gold price is over $2,000 per ounce. This was partially offset by lower

sustaining capital expenditure in 2024.