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Fortuna reports record production and financial results for the third quarter of 2023

Production Results Financials

4 Attributable to Fortuna Shareholders

5 Excluding letters of credit

6 Au Eq includes gold, silver, lead and zinc and is calculated using the following metal prices: $1,924/oz Au, $23.70/oz Ag, $2,136/t Pb and $2,428/t Zn or Au:Ag = 1:81.19, Au:Pb = 1:0.90,

Au:Zn = 0.79 for Q3 2023, and the following metal prices: $1,975/oz Au, $24.10/oz Ag, $0.96/t Pb and $1.23/t Zn or Au:Ag = 1:81.96, Au:Pb = 1:0.93, Au:Zn = 1:0.73 for Q2 2023.

Fortuna reports record production and financial results for the third quarter of 2023

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

Vancouver, November 8, 2023: Fortuna Silver Mines Inc. (NYSE: FSM) (TSX: FVI) (“Fortuna” or the “Company”) today

reported its financial and operating results for the third quarter of 2023.

Third Quarter 2023 highlights

Financial

• Net income4 of $27.5 million or $0.09 per share, compared to $3.1 million or $0.01 per share in Q2 2023

• Adjusted net income4,1 of $29.6 million or $0.10 per share, compared to $2.5 million or $0.01 per share in Q2 2023

• Adjusted EBITDA1 of $104.6 million, compared to $44.4 million in Q2 2023

• Net cash provided by operating activities of $106.5 million and free cash flow from ongoing operations 1 of $70.0

million, compared to $44.2 million and $9.5 million, respectively, in Q2 2023

• Company paid down $40.0 million of its revolving credit facility. At the close of the quarter total net debt was

$133.4 million and the total net debt to adjusted EBITDA ratio1 was 0.5

• Liquidity as of September 30, 2023 was $162.3 million5, compared to $97.9 million at the end of Q2 2023

Operational

• Gold production of 94,821 ounces, compared to 64,348 ounces in Q2 2023

• Silver production of 1,680,751 ounces, compared to 1,262,561 ounces in Q2 2023

• Gold equivalent6 production of 128,671 ounces, compared to 93,454 ounces in Q2 2023

• Consolidated cash costs1 per ounce of gold equivalent sold of $814, compared to $968 in Q2 2023

• Consolidated all-in sustaining costs (AISC)1 per ounce of gold equivalent sold of $1,312, compared to $1,799 in Q2

2023

• Year to date Lost Time Injury Frequency Rate (LTIFR) of 0.38 and Total Recordable Injury Frequency Rate (TRIFR)

of 0.86.

Growth and Development

• The third quarter was the first full reporting period for the Séguéla Mine

• The acquisition of Chesser Resources Limited and its Diamba Sud project was completed on September 20, 2023

(Refer to the News Release dated September 20, 2023).

Jorge A. Ganoza, President and CEO, commented, “Fortuna has delivered record production and financial results for all its

key metrics driven by the first full quarter contribution of our flagship Séguéla gold mine.” Mr. Ganoza continued,

“Compared to the first half of the year, the reduction in our con solidated all-in sustaining cost to $1,312 is primarily the

result of Séguéla’s industry leading AISC of $788 per ounce, abating inflation, optimization initiatives across the business,

and higher gold production at the Yaramoko mine driven by new high grade zones.” Mr. Ganoza concluded, “As we shift

from a two-year capital-intensive phase to strong free cash flow generation, we will prioritize strengthening our balance

sheet through debt reduction and advancing high value opportunities in our exploration portfolio. We currently maintain

eleven drill rigs turning across our properties including three at our newly acquired Diamba Sud gold project in Senegal.”

NEWS RELEASE

Fortuna | 2

Third Quarter 2023 Consolidated Results

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

(Expressed in millions) 2023 2022 % Change 2023 2022 % Change

Sales 243.1 166.6 46% 577.1 516.8 12%

Mine operating income 65.9 24.7 167% 138.2 120.8 14%

Operating income 45.4 5.7 696% 77.0 59.6 29%

Attributable net income (loss) 27.5 (3.7) 843% 41.5 24.6 69%

Attributable Earnings per share - basic 0.09 (0.01) 1,000% 0.14 0.08 75%

Attributable Adjusted net income1 29.6 2.9 921% 44.3 35.0 27%

Adjusted EBITDA1 104.6 54.4 92% 214.0 189.7 13%

Net cash provided by operating activities 106.5 64.7 65% 191.8 144.6 33%

Free cash flow from ongoing operations1 70.0 34.0 106% 87.3 64.8 35%

Production cash cost ($/oz Au Eq) 814 881 (8%) 887 841 5%

All-in sustaining cash cost ($/oz Au Eq) 1,312 1,431 (8%) 1,507 1,383 9%

Capital expenditures2

Sustaining 27.2 23.2 17% 89.3 64.3 39%

Non-sustaining3 1.3 4.0 (68%) 3.4 10.4 (67%)

Séguéla construction 1.9 23.5 (92%) 50.0 87.6 (43%)

Brownfields 3.3 9.6 (66%) 10.7 17.1 (37%)

As at September 30, 2023 December 31, 2022 % Change

Cash and cash equivalents 117.8 80.5 46%

Net liquidity position (excluding letters of credit) 162.3 150.5 8%

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 2023 Results

Net income attributable to Fortuna for the quarter was $ 27.5 million compared to an attributable net loss of $3. 7 million

in Q3 2022. After adjusting for non -cash and non-recurring items, adjusted attributable net income for the quarter was

$29.6 million compared to $2. 9 million in Q3 2022. The increase in net income and adjusted net income is explained

mainly by increased gold sales volume, higher realized gold and silver prices and lower cost of sales per gold equivalent

ounce. Higher gold sales volume was primarily due to the contributio n from the first quarter of com mercial production

at Séguéla and higher grades at Yaramoko. This was partially offset by lower gold sales volume at Lindero related to lower

grades, in line with the mine plan. The realized gold and silver prices were $1,925 and $23.7 per ounce, respectively, in Q3

2023 compared to $1,718 and $19.2 per ounce, respectively, in the prior year. The lower cash cost of sales per gold

equivalent ounce was mainly due to the contribution of low -cost production from Séguéla and lower cost of sales per

ounce of gold at Yaramoko related to higher grades. This was partially offset by higher costs of sales per ounce at Lindero

and San Jose. Other items impacting net income in the quarter were higher interest expense s of $5.7 million as a result

of interest costs no longer being capitalized in the quarter, higher outstanding debt and increased interest rates; lower

depletion at Séguéla which is expected to increase in the coming quarters from depletion of the purchase price; and a low

effective income tax rate in the quarter of 17.6% as no income taxes were recorded at Séguéla.

General and administrative expenses for the quarter of $14.6 million were higher than the same period in 2022 as Séguéla

transitioned to operations and costs are no longer being capitalized. G&A is comprised of the following items:

Fortuna | 3

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

(Expressed in millions) 2023 2022 % Change 2023 2022 % Change

Mine G&A 8.4 5.4 56% 20.5 15.8 30%

Corporate G&A 5.5 5.4 2% 19.7 22.3 (12%)

Share-based payments 0.5 1.9 (74%) 3.8 5.9 (36%)

Workers' participation 0.2 0.3 (33%) 0.2 0.7 (71%)

Total 14.6 13.0 12% 44.2 44.7 (1%)

Net cash generated by operations for the quarter increased $41.6 to $ 106.5 million. The increase reflects higher EBITDA

of $51.2 million offset by lower changes in working capital in Q3 2023 of $0.2 million compared to a change in Q3 2022 of

$11.5 million. Income tax paid in the quarter of $3.2 million was $5.6 million lower than in Q3 2022 as no income tax was

paid at Séguéla in Q3 2023. It is expected Séguéla will start incurring current income taxes in Q4 2023 and paying income

taxes in 2024.

In the third quarter of 2023 capital expenditures on a cash basis was $37.0 million consisting primarily of $30.6 million in

sustaining capital, including brownfields exploration, and $4.0 million of non-sustaining exploration.

Free cash flow from ongoing operations for the quarter was $70.0 million, compared to $34.0 million in Q3 2022. The

increase of $36.0 million is the result of higher net cash generated by operations of $41.8 million partially offset by higher

sustaining capex and brownfields exploration at our operating mines of $5.8 million in Q3 2023.

Consolidated All-in Sustaining Cost

Consolidated AISC per gold equivalent ounce (GEO) sold for the third quarter of 2023 was $1,312 per ounce compared to

$1,431 per ounce for the comparable quarter in 2022. The lower AISC was driven by a decrease of $67 in cash cost of sales

per gold equivalent ounce to $814 and lower capital costs per ounce driven by higher volume.

Liquidity

The Company’s total liquidity available as of September 30, 2023 was $162.3 million comprised of $117.8 million in cash

and cash equivalents, and $44.5 million undrawn on the $250.0 million revolving credit facility (excluding letters of credit).

Fortuna | 4

Lindero Mine, Argentina

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

2023 2022 2023 2022

Mine Production

Tonnes placed on the leach pad 1,467,578 1,365,726 4,449,049 4,163,555

Gold

Grade (g/t) 0.62 0.83 0.65 0.83

Production (oz) 20,933 30,032 71,647 89,116

Metal sold (oz) 22,242 30,064 74,194 89,229

Realized price ($/oz) 1,910 1,719 1,923 1,825

Unit Costs

Cash cost ($/oz Au)1 988 772 916 717

All-in sustaining cash cost ($/oz Au)1 1,611 1,159 1,569 1,117

Capital Expenditures ($000's) 2

Sustaining 7,669 4,814 28,751 14,062

Non-sustaining 353 – 676 169

Brownfields – 314 – 1,104

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.

Quarterly Operating and Financial Highlights

In the third quarter of 2023, a total of 1,467,578 tonnes of ore were placed on the heap leach pad, with an average gold

grade of 0.62 g/t, containing an estimated 29,068 ounces of gold. Gold production for Q3 2023 totaled 20,933 ounces.

This represents a 30% decrease in total ounces to the comparable quarter of 2022. This decline in gold production can be

primarily explained by the lower head grade of ore placed on the leach pad, in accordance with the mining sequence and

the Mineral Reserves. Ore mined wa s 1.9 million tonnes, with a stripping ratio of 1.1:1. The stripping ratio in the third

quarter is 59 percent lower than the second quarter and is expected to continue declining through to the end of the year.

Higher stripping of waste in the first nine months of the year will allow improved access to higher grade material scheduled

in the mine plan for the fourth quarter. As a result, Lindero anticipates placing approximately 1.6 million tonnes of ore on

the leach pad in Q4 2023 at a higher average grade of 0.67 g/t Au.

Cash cost per ounce of gold for the quarter ended September 30, 2023, was $988 compared to $772 in the same period

in 2022. Cash cost per ounce of gold was higher due to lower head grades in line with the mine plan, partially offset by

lower processing costs.

All-in sustaining cash cost per gold ounce sold was $1,611 during Q3 2023 compared with $1,159 in the same period of

2022. All-in sustaining cash cost for the third quarter of 2023 was impacted by lower production described above and

higher sustaining capital expenditures.

During the quarter, increased sustaining capital expenditures were primarily driven by the development of Phase 2 of the

leach pad and capitalized stripping. As of September 30, 2023, the leach pad expansion project (Project) is approximately

13 percent complete. The procurement construction and management (PCM) service has been awarded to Knight Piésold,

the accommodation camp expansion and PCM offices for the Project have been finalized, and PCM personnel are already

onsite. Mobilization of the contractor’s personnel and equipment has commenced. The first shipments of geomembrane

and geosynthetic clay liner are in transit, and the Project remains on schedule for completion during the second half of

2024.

Fortuna | 5

Yaramoko Mine Complex, Burkina Faso

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

2023 2022 2023 2022

Mine Production

Tonnes milled 137,281 137,202 421,133 403,957

Gold

Grade (g/t) 7.72 6.21 6.52 6.34

Recovery (%) 99 97 98 97

Production (oz) 34,036 27,130 89,476 79,918

Metal sold (oz) 33,971 27,055 89,448 81,183

Realized price ($/oz) 1,932 1,716 1,932 1,821

Unit Costs

Cash cost ($/oz Au)1 752 934 764 847

All-in sustaining cash cost ($/oz Au)1 1,211 1,630 1,429 1,433

Capital Expenditures ($000's) 2

Sustaining 9,451 10,225 37,318 26,671

Brownfields 1,447 2,530 3,656 3,018

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.

The Yaramoko Mine produced 34,036 ounces of gold in the third quarter of 2023 with an average gold head grade of

7.72g/t, 25% and 24% increases when compared to the same period in 2022. Increased production resulted from higher

average grades and greater w idths of mineralization encountered in development headings, which contributed 42% of

total mill feed.

As a result of the aforementioned higher grades in development and production zones within the mine plan, the Company

has revised Yaramoko’s annual gold production guidance upwards to 110 to 120 thousand ounces from the original

guidance of 92 to 102 thousand ounces, an increase of approximately 14 percent. Gold production for the first nine months

of 2023 totaled 89,476 ounces.

Cash cost per ounce of gold sold for the quarter ended September 30, 2023, was $752 compared to $934 in the same

period in 2022. Cash cost per ounce decreased due to higher production, improved head grades of ore processed, reduced

mining costs related to ore development and decreased transportation costs.

All-in sustaining cash cost per gold ounce sold was $1,211 for Q3 2023, compared to $1,630 for the same period in 2022.

This decrease was as a result of higher production, and cash cost savings described above.

Sustaining capital for Q3 2023 was higher due to more intensive mine development. Brownfields expenditure was

primarily related to diamond drilling. Drilling focused on infill grade control and exploring for extensions beyond the

mineralized resource envelope in the deeper eastern portion of Zone 55. During the fourth quarter, drilling will continue

on the western portion of Zone 55, testing for up and down -dip continuity of the recently discovered extensions to the

resource boundary.

Fortuna | 6

Séguéla Mine, Côte d’Ivoire

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

2023 2022 2023 2022

Mine Production

Tonnes milled 310,387 - 419,992 -

Gold

Grade (g/t) 3.83 - 3.28 -

Recovery (%) 93 - 94 -

Production (oz) 31,498 - 35,521 -

Metal sold (oz) 35,503 — 35,503 —

Realized price ($/oz) 1,927 — 1,927 —

Unit Costs

Cash cost ($/oz Au)1 397 - 397 -

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

Capital Expenditures ($000's) 2

Sustaining 3,147 – 3,147 –

Brownfields – – – –

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

From Séguéla’s first gold pour on May 24th to the successful completion of the processing plant performance test in

August, the operation is now exceeding nameplate capacity. Séguéla is well positioned to achieve the mid-point of its gold

production guidance of 60 to 75 thousand ounces for the second half of 2023.

In the third quarter of 2023, mine production totaled 502,326 tonnes of ore, averaging 3.48 g/t Au, and containing an

estimated 56,136 ounces of gold from the Antenna Pit. Movement of waste during the quarter totaled 1,156,540 tonnes,

for a strip ratio of 2.3:1.

Cash cost per gold ounce sold was $397 for Q3 2023, which was below plan, primarily higher due to head grades and lower

energy and diesel consumption.

All-in sustaining cash cost per gold ounce sold was $788 for Q3 2023, which was below plan, primarily due to lower cash

cost, lower capital expenditures, and higher sale volume.

Sustaining capital for Q3 202 3 consisted primarily of mine development. The first stage of grade control drilling was

completed at the Ancien deposit during the third quarter, with results currently being processed. Construction of the

access road continued as planned, with stripping and initial mining of oxide material scheduled to begin this quarter.

At the Koula deposit, initial grade control drilling started and should be completed early this quarter.

Fortuna | 7

San Jose Mine, Mexico

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

2023 2022 2023 2022

Mine Production

Tonnes milled 247,542 267,198 689,165 770,090

Average tonnes milled per day 2,845 3,071 2,790 2,939

Silver

Grade (g/t) 189 196 180 189

Recovery (%) 91 92 91 91

Production (oz) 1,372,530 1,545,410 3,633,107 4,288,936

Metal sold (oz) 1,347,719 1,539,382 3,618,723 4,272,878

Realized price ($/oz) 23.65 19.14 23.37 21.86

Gold

Grade (g/t) 1.14 1.16 1.11 1.14

Recovery (%) 91 91 90 91

Production (oz) 8,205 9,091 22,215 25,624

Metal sold (oz) 8,068 9,064 22,118 25,580

Realized price ($/oz) 1,932 1,722 1,930 1,825

Unit Costs

Production cash cost ($/t)2 103.47 79.37 97.26 79.66

Production cash cost ($/oz Ag Eq)1,2 13.84 9.70 13.48 10.35

All-in sustaining cash cost ($/oz Ag Eq)1,2 18.04 14.23 18.65 14.95

Capital Expenditures ($000's) 3

Sustaining 3,462 4,410 10,828 12,036

Non-sustaining 385 – 1,178 869

Brownfields 1,082 1,548 2,958 4,645

1 Production cash cost per ounce of silver equivalent and All-in sustaining cash cost per ounce of silver equivalent are calculated using realized metal prices for each

period respectively.

2 Production cash cost per tonne, production cash cost per ounce of silver equivalent, and all-in sustaining cash cost per ounce of silver equivalent 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.

3 Capital expenditures are presented on a cash basis

In the third quarter of 2023, the San Jose Mine produced 1,372,530 ounces of silver at an average head grade of 189 g/t

Ag and 8,205 ounces of gold at an average head grade of 1.14 g/t Au, 11% and 10% lower, respectively, when compared

to the same period in 2022. The decrease in silver and gold production for the third quarter of 2023, when compared to

the third quarter of 2022, is explained by the declining grade profile of Mineral Reserves in the mine plan. The processing

plant milled 247,542 tonnes at an average of 2,845 tonnes per day during the third quarter, in line with the plan for the

period.

Gold production is expected to fall slightly below the annual guidance range of 34 to 37 thousand ounces, resulting from

lost production days in the second quarter due to the illegal union blockade, and gold head grade reconciliation to reserves

in the low end of range. The San Jose Mine remains positioned to deliver annual silver production within the guidance

range of between 5.3 to 5.8 million ounces.

The cash cost per tonne for the three months ended September 30, 2023, was $103.4 7 compared to $79.37 in the same

period in 2022. The increase was primarily due to higher use of contractors to make up for lost production in the second

quarter of 2023 related to the illegal blockade, higher maintenance and indirect costs and the appreciation of the Mexican

Peso.

All-in sustaining cash cost of payable silver equivalent for the three months ended September 30, 2023, increased 26% to

$18.04 per ounce, compared to $14.23 per ounce for the same period in 2022. The increase was driven by higher cash

Fortuna | 8

cost, lower production, and lower equivalent silver ounces per gold ounce. This was offset slightly by lower capital

expenditures and lower workers’ participation costs.

In the third quarter of 2023, sustaining capital expenditures were higher than the same period in 2022. This increase was

primarily due to the execution of development meters, which had been postponed from Q2 2023 because of the blockade.

Brownfields expenditures were in line with the plan. Expenditures are however expected to increase, due to the emergent

drilling campaign at the Yessi vein.

Infill drilling at the San Jose Mine during the quarter led to the discovery of the Yessi vein, a blind structure, located 20 0

horizontal meters from existing underground infrastructure. The discovery hole SJOM -1387 intersected 1,299 g/t Ag Eq

over 9.9 meters, and drill hole SJOM -1391 intersected 621 g/t Ag Eq over 5 meters (Refer to the News Release filled on

SEDAR+ on September 5, 2023 titled “Fortuna intersects 1,299 g/t Ag Eq over a true width of 9.9 meters at the San Jose

Mine, Mexico” for full details of the drilling program ). Additional drilling is currently underway from both surface and

underground to define the extent and geometry of this discovery. Mineralization remains open along strike to the north

and south, and at depth.