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Fortuna Extends High Grade Gold Mineralization at Sunbird, Including 6.1 g/t Au over 18.9 meters, Séguéla Mine, Côte d’Ivoire

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Fortuna Mining (NYSE: FSM) reported results from 22 drill holes (9,816 meters) at the Sunbird deposit, Séguéla mine, Côte d’Ivoire, dated Feb 12, 2026. Drilling extended high‑grade mineralization ~400 meters beyond existing Mineral Resource and Mineral Reserves envelopes, with notable intercepts such as 6.1 g/t Au over an estimated true width of 18.9 meters and 73.5 g/t Au over 0.7 meters. Five rigs are active and drilling is expected to continue through 2026. All holes were completed after the June 30, 2025 data cut‑off and are not included in the current resource statement.

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Positive

  • Mineralization extended ~400m beyond existing resource envelopes
  • 22 drill holes completed totaling 9,816 meters
  • High‑grade intercepts including 6.1 g/t Au over 18.9m and 73.5 g/t Au over 0.7m
  • Five drill rigs currently focused on Sunbird supporting resource growth

Negative

  • Results post‑cut‑off: all holes completed after June 30, 2025 and not yet in current resources
  • Resource impact timing unknown: additional drilling and modelling required before resource update

Key Figures

Sunbird highlight intercept: 6.1 g/t Au over 18.9 m High-grade sample: 73.5 g/t Au over 0.7 m Deep extension intercept: 13.0 g/t Au over 4.2 m +5 more
8 metrics
Sunbird highlight intercept 6.1 g/t Au over 18.9 m Drill hole SGDD148 at ~564 m depth
High-grade sample 73.5 g/t Au over 0.7 m Drill hole SGDD148 from 530 m depth
Deep extension intercept 13.0 g/t Au over 4.2 m Drill hole SGDD149 from 686 m depth
Additional strong intercept 10.9 g/t Au over 2.1 m Drill hole SGRD2477 from 483 m depth
Drill program scale 22 drill holes, 9,816 m Sunbird underground infill and extension program
Mineralization step-out 400 meters High grade gold delineated beyond existing resource envelopes
Linkage intercept 4.1 g/t Au over 11.9 m Infill drilling result in SGRD2487 at 499 m
Active drill rigs 5 drill rigs Rigs currently focused on Sunbird deposit

Market Reality Check

Price: $10.39 Vol: Volume 5,228,689 is below...
low vol
$10.39 Last Close
Volume Volume 5,228,689 is below the 20-day average of 9,109,026 (relative volume 0.57). low
Technical Price 11.41 is trading above the 200-day MA at 8.07, reflecting a pre-news uptrend.

Peers on Argus

FSM was up 2.89% pre-news while key gold peers were mixed: NG +5.94%, EGO +4.07%...

FSM was up 2.89% pre-news while key gold peers were mixed: NG +5.94%, EGO +4.07%, SSRM +0.99%, but SAND -5.16% and BTG -3.26%, indicating stock-specific factors rather than a uniform sector move.

Historical Context

5 past events · Latest: Feb 10 (Positive)
Pattern 5 events
Date Event Sentiment Move Catalyst
Feb 10 Permit application Positive +0.6% Submitted exploitation permit for Diamba Sud, advancing project toward possible mine development.
Jan 20 Reserve expansion Positive +3.6% Reported 31% increase in Séguéla reserves and mine life beyond nine years with Sunbird underground addition.
Jan 15 Production/guidance Positive -0.3% Announced 2025 GEO production meeting guidance, strong Séguéla output, and 2026 outlook with solid liquidity.
Jan 8 Share buyback Positive -0.9% Disclosed share repurchases plus progress at Diamba Sud and Séguéla expansion feasibility work.
Dec 08 Drill results Positive -0.4% Released strong Diamba Sud Southern Arc drill intercepts and confirmed robust PEA economics.
Pattern Detected

Recent positive operational and project updates have often seen mixed or muted price follow-through, with several constructive announcements met by flat-to-negative next-day moves.

Recent Company History

Over the last few months, FSM has focused on West African growth and reserve expansion. On Dec 8, 2025, it reported robust drill results and strong PEA economics at Diamba Sud. A share buyback update on Jan 8, 2026, 2025 production/guidance on Jan 15, and a major Séguéla reserve increase on Jan 20 highlighted growing scale and mine life. The Feb 10 exploitation permit application at Diamba Sud further advanced development. Today’s Sunbird drilling update fits this pattern of ongoing resource and mine-life building news.

Market Pulse Summary

This announcement reports multiple high‑grade gold intercepts at Sunbird and confirms mineralization...
Analysis

This announcement reports multiple high‑grade gold intercepts at Sunbird and confirms mineralization remains open at depth and along strike, with drilling stepping about 400 meters beyond current resource envelopes. It follows recent reserve growth at Séguéla and permitting progress at Diamba Sud, reinforcing a narrative of ongoing resource expansion. Investors may watch future drill updates, upcoming technical studies, and how these results feed into Mineral Resource and Reserve revisions at the Séguéla Mine.

Key Terms

reverse circulation (rc) drilling, diamond drilling (dd), fire assay, atomic absorption, +3 more
7 terms
reverse circulation (rc) drilling technical
"All reverse circulation (RC) drilling used a 5.25-inch face sampling..."
A drilling method used in mineral exploration where rock fragments are brought to the surface inside a protected tube by a flow of air or drilling fluid, producing a continuous, relatively uncontaminated sample from the drill hole. Like a vacuum pulling dust into a clear container, it yields larger, cleaner samples faster than many other techniques, which matters to investors because sample quality and speed directly affect the reliability of resource estimates, exploration costs and project timelines.
diamond drilling (dd) technical
"All diamond drilling (DD) drill holes started with HQ sized diameter..."
Diamond drilling (DD) is a method of cutting a cylindrical sample of rock from the ground using a rotating bit studded with industrial diamonds, producing a solid “core” that preserves the layers and minerals exactly as they were underground—like taking a biopsy or a tree-ring sample of the earth. For investors, diamond-drilled cores provide direct, physical evidence of rock types and mineral concentrations used for laboratory assays, geological models and resource estimates, reducing uncertainty about a project’s value and guiding decisions on further investment or development.
fire assay technical
"Routine gold analysis using a 50-gram charge and fire assay with an..."
Fire assay is a laboratory process used to accurately measure the amount of precious metals, like gold or silver, in a sample of ore or material. It involves heating the sample intensely to separate the metals from other substances, much like melting and purifying metal to determine its purity. This method is important to investors because it provides precise data on the metal content, helping to assess the value of mining operations or mineral deposits.
atomic absorption technical
"fire assay with an atomic absorption finish was completed for all samples..."
A laboratory method that measures how much light free atoms absorb to determine the amount of a specific metal or element in a sample, like checking how much dye is in water by seeing how dark it looks. Investors care because it’s a standard way to test for contaminants, verify raw-material purity, and support regulatory compliance; results can affect product safety, cleanup costs, production quality, and a company’s legal or reputational risk.
gravimetric finish technical
"assays >10 ppm Au were reanalyzed using a 50-gram charge and fire assay with a gravimetric finish."
A gravimetric finish is a precise way of measuring the final weight of a product or material after processing or manufacturing. It ensures that the final amount meets exact standards, similar to weighing ingredients carefully in cooking. For investors, it indicates attention to quality control and consistency, which can impact a company's reputation and product reliability.
quality assurance & quality control (qa - qc) technical
"Quality Assurance & Quality Control (QA - QC) All drilling data completed..."
Quality assurance and quality control are two linked practices that ensure products or services are safe, consistent and perform as intended: quality assurance sets up the procedures and standards to prevent problems, while quality control inspects and tests outputs to find and fix defects. Investors pay attention because strong QA/QC reduces recalls, regulatory fines and surprise costs, making earnings and reputation more predictable—like a bakery that follows a recipe and tastes each batch to avoid burned loaves.
national instrument 43-101 regulatory
"Qualified Person ... as defined by National Instrument 43-101 being a member..."
National Instrument 43-101 is a set of rules and guidelines that govern how mineral exploration and mining companies must report information about their projects. It ensures that the details shared with investors are accurate, consistent, and reliable—similar to how a detailed, verified blueprint ensures a building’s safety. This helps investors make informed decisions based on trustworthy information about a company's mineral resources.

AI-generated analysis. Not financial advice.

VANCOUVER, British Columbia, Feb. 12, 2026 (GLOBE NEWSWIRE) -- Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to report results from ongoing exploration drilling at the Sunbird deposit, located at the Séguéla Mine in Côte d’Ivoire (see Figure 1). Recent drilling has successfully extended mineralization at depth and expanded a second high grade mineralized shoot.

Paul Weedon, Senior Vice President of Exploration, commented, “Continued drilling at Sunbird confirms that high grade mineralization remains wide open at depth.” Mr. Weedon added, “With five drill rigs currently focused on Sunbird, these results build on previously announced high grade drill intercepts and further underpin the potential for resource growth.”

Sunbird Deposit Drilling Highlights

SGRD2473:15.4 g/t Au
over an estimated true width of 4.2 meters from 478 meters, including
 26.2 g/t Auover an estimated true width of 2.1 meters from 480 meters
SGRD2475:4.1 g/t Au
over an estimated true width of 13.3 meters from 504 meters, including
 13.6 g/t Auover an estimated true width of 0.7 meters from 504 meters
SGRD2477:10.9 g/t Au
over an estimated true width of 2.1 meters from 483 meters, including
 23.5 g/t Auover an estimated true width of 0.7 meters from 485 meters
 13.9 g/t Au
over an estimated true width of 4.9 meters from 489 meters, including
 27.5 g/t Auover an estimated true width of 2.1 meters from 492 meters
SGRD2491:5.2 g/t Au
over an estimated true width of 8.4 meters from 513 meters, including
 12.0 g/t Auover an estimated true width of 1.4 meters from 513 meters, and
 14.3 g/t Auover an estimated true width of 0.7 meters from 521 meters
 8.2 g/t Au
over an estimated true width of 8.4 meters from 528 meters, including
 29.6 g/t Auover an estimated true width of 1.4 meters from 533 meters
SGDD148:73.5 g/t Au
over an estimated true width of 0.7 meters from 530 meters
 6.1 g/t Au
over an estimated true width of 18.9 meters from 564 meters, including
 25.4 g/t Auover an estimated true width of 0.7 meters from 569 meters, and
 27.4 g/t Auover an estimated true width of 0.7 meters from 574 meters, and
 16.8 g/t Auover an estimated true width of 0.7 meters from 589 meters
SGDD149:13.0 g/t Au
over an estimated true width of 4.2 meters from 686 meters, including
 31.1 g/t Auover an estimated true width of 1.4 meters from 686 meters
   

A further 22 drill holes, totaling 9,816 meters, have been completed at the Sunbird deposit as part of the underground resource confidence infill and extension drilling program (see Figure 2). All drill holes were completed after the June 30, 2025 data cut-off date used for reporting the current Séguéla Mineral Resources and Mineral Reserves (refer to Fortuna news release dated January 20, 2026). Drilling focused on extending the lower shoot and has successfully delineated high grade gold mineralization approximately 400 meters beyond the existing Mineral Resource and Mineral Reserves envelopes, with results including 13.0 g/t Au over an estimated true width of 4.2 meters from 686 meters depth in drill hole SGDD149. Infill drilling has also targeted the linkage between the upper and lower shoots, returning results such as 4.1g/t Au over an estimated true width of 11.9 meters from 499 meters depth in SGRD2487.

Mineralization at the Sunbird deposit remains open at depth and along strike, with drilling expected to continue throughout 2026.

Refer to Appendix 1 for full details of the drill holes and assay results for this drill program.

Figure 1: Location of the Sunbird Deposit, Séguéla Mine, Côte d’Ivoire

Location of the Sunbird Deposit, Séguéla Mine, Côte d’Ivoire

Figure 2: Sunbird Deposit long-section - looking west, Séguéla Mine, Côte d’Ivoire

Sunbird Deposit long-section - looking west, Séguéla Mine, Côte d’Ivoire

Quality Assurance & Quality Control (QA - QC)

All drilling data completed by the Company utilized the following procedures and methodologies. All drilling was carried out under the supervision of the Company’s personnel.

All reverse circulation (RC) drilling used a 5.25-inch face sampling pneumatic hammer with samples collected into 60-liter plastic bags. Samples were kept dry by maintaining enough air pressure to exclude groundwater inflow. If water ingress exceeded the air pressure, RC drilling was stopped and drilling converted to diamond core tails. Once collected, RC samples were riffle split through a three-tier splitter to yield a 12.5 percent representative sample for submission to the analytical laboratory. The residual 87.5 percent samples were stored at the drill site until assay results were received and validated. Coarse reject samples for all mineralized samples corresponding to significant intervals are retained and stored on-site at the Company-controlled core yard.

All diamond drilling (DD) drill holes started with HQ sized diameter, before reducing to NQ diameter diamond drill bits on intersecting fresh rock. The core was logged, marked up for sampling using standard lengths of one meter or to a geological boundary. Samples were then cut into equal halves using a diamond saw. One half of the core was left in the original core box and stored in a secure location at the Company core yard at the project site. The other half was sampled, catalogued, and placed into sealed bags and securely stored at the site until shipment.

All RC and DD samples were transported by Company vehicle or commercial courier to either the ALS Global preparation laboratory in Yamoussoukro, Cote d’Ivoire or the Bureau Veritas preparation and analytical laboratory in Abidjan, Cote d’Ivoire. Sample pulps prepared by ALS Global were then transported via commercial courier to ALS’s facility in Ouagadougou, Burkina Faso. Routine gold analysis using a 50-gram charge and fire assay with an atomic absorption finish was completed for all samples at either ALS’s Ouagadougou laboratory or Bureau Veritas’ laboratory in Abidjan. Samples returning assays >10 ppm Au were reanalyzed using a 50-gram charge and fire assay with a gravimetric finish. Quality control procedures included the systematic insertion of blanks, duplicates and sample standards into the sample stream. In addition, both ALS and Bureau Veritas laboratories inserted their own quality control samples.

Qualified Person

Paul Weedon, Senior Vice President, Exploration for Fortuna Mining Corp., is a Qualified Person as defined by National Instrument 43-101 being a member of the Australian Institute of Geoscientists (Membership #6001). Mr. Weedon has reviewed and approved the scientific and technical information contained in this news release. Mr. Weedon has verified the data disclosed, including the sampling, analytical and test data underlying the information or opinions contained herein by reviewing geochemical and geological databases and reviewing diamond drill core. There were no limitations to the verification process.

About Fortuna Mining Corp.

Fortuna Mining Corp. is a Canadian precious metals mining company with three operating mines and a portfolio of exploration projects in Argentina, Côte d’Ivoire, Mexico, and Peru, as well as the Diamba Sud Gold Project in Senegal. Sustainability is at the core of our operations and stakeholder relationships. We produce gold and silver while creating long-term shared value through efficient production, environmental stewardship, and social responsibility. For more information, please visit our website at www.fortunamining.com

ON BEHALF OF THE BOARD

Jorge A. Ganoza
President, CEO, and Director
Fortuna Mining Corp.

Investor Relations:
Carlos Baca | info@fmcmail.com | fortunamining.com | X | LinkedIn | YouTube | Instagram | TikTok

Forward looking Statements

This news release contains forward-looking statements which constitute “forward-looking information” within the meaning of applicable Canadian securities legislation and “forward-looking statements” within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995 (collectively, “Forward-looking Statements”). All statements included herein, other than statements of historical fact, are Forward-looking Statements and are subject to a variety of known and unknown risks and uncertainties which could cause actual events or results to differ materially from those reflected in the Forward-looking Statements. The Forward-looking Statements in this news release include, without limitation, the Mineral Resource and Mineral Reserve estimates at the Sunbird deposit; the Company’s proposed exploration plans and objectives at the Sunbird deposit; statements regarding the potential for resource growth; statements about the Company’s business strategies, plans and outlook; the Company’s plans for its mines and mineral properties; changes in general economic conditions and financial markets; the impact of inflationary pressures on the Company’s business and operations; the future results of exploration activities; expectations with respect to metal grade estimates and the impact of any variations relative to metals grades experienced; assumed and future metal prices; the merit of the Company’s mines and mineral properties; and the future financial or operating performance of the Company. Often, but not always, these Forward-looking Statements can be identified by the use of words such as “estimated”, “potential”, “open”, “future”, “assumed”, “projected”, “proposed”, “used”, “detailed”, “has been”, “gain”, “planned”, “reflecting”, “will”, “anticipated”, “estimated” “containing”, “remaining”, “to be”, or statements that events, “could” or “should” occur or be achieved and similar expressions, including negative variations.

Forward-looking Statements involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance, or achievements of the Company to be materially different from any results, performance or achievements expressed or implied by the Forward-looking Statements. Such uncertainties and factors include, among others, operational risks associated with mining and mineral processing; uncertainty relating to Mineral Resource and Mineral Reserve estimates; uncertainty relating to capital and operating costs, production schedules and economic returns; risks relating to the Company’s ability to replace its Mineral Reserves; risks related to the conversion of Mineral Resources to Mineral Reserves; risks associated with mineral exploration and project development; uncertainty relating to the repatriation of funds as a result of currency controls; environmental matters including obtaining or renewing environmental permits and potential liability claims; uncertainty relating to nature and climate conditions; laws and regulations regarding the protection of the environment (including greenhouse gas emission reduction and other decarbonization requirements and the uncertainty surrounding the interpretation of omnibus Bill C-59 and the related amendments to the Competition Act (Canada); risks associated with political instability and changes to the regulations governing the Company’s business operations; changes in national and local government legislation, taxation, controls, regulations and political or economic developments in countries in which the Company does or may carry on business; risks associated with war, hostilities or other conflicts, such as the Ukrainian – Russian, and Israeli – Hamas conflicts, and the impacts they may have on global economic activity; risks relating to the termination of the Company’s mining concessions in certain circumstances; developing and maintaining relationships with local communities and stakeholders; risks associated with losing control of public perception as a result of social media and other web-based applications; potential opposition to the Company’s exploration, development and operational activities; risks related to the Company’s ability to obtain adequate financing for planned exploration and development activities; property title matters; risks related to the ability to retain or extend title to the Company’s mineral properties; risks relating to the integration of businesses and assets acquired by the Company; impairments; risks associated with climate change legislation; reliance on key personnel; adequacy of insurance coverage; operational safety and security risks; legal proceedings and potential legal proceedings; uncertainties relating to general economic conditions; risks relating to a global pandemic, which could impact the Company’s business, operations, financial condition and share price; competition; fluctuations in metal prices; risks associated with entering into commodity forward and option contracts for base metals production; fluctuations in currency exchange rates and interest rates; tax audits and reassessments; risks related to hedging; uncertainty relating to concentrate treatment charges and transportation costs; sufficiency of monies allotted by the Company for land reclamation; risks associated with dependence upon information technology systems, which are subject to disruption, damage, failure and risks with implementation and integration; labor relations issues; as well as those factors discussed under “Risk Factors” in the Company's Annual Information Form for the fiscal year ended December 31, 2024. Although the Company has attempted to identify important factors that could cause actual actions, events, or results to differ materially from those described in Forward-looking Statements, there may be other factors that cause actions, events or results to differ from those anticipated, estimated or intended.

Forward-looking Statements contained herein are based on the assumptions, beliefs, expectations and opinions of management, including, but not limited to, the accuracy of the Company’s current Mineral Resource and Mineral Reserve estimates; that the Company’s activities will be conducted in accordance with the Company’s public statements and stated goals; that there will be no material adverse change affecting the Company, its properties or its production estimates (which assume accuracy of projected ore grade, mining rates, recovery timing, and recovery rate estimates and may be impacted by unscheduled maintenance, labor and contractor availability and other operating or technical difficulties); the duration and effect of global and local inflation; the duration and impacts of geo-political uncertainties on the Company’s production, workforce, business, operations and financial condition; the expected trends in mineral prices, inflation and currency exchange rates; that all required approvals and permits will be obtained for the Company’s business and operations on acceptable terms; that there will be no significant disruptions affecting the Company's operations and such other assumptions as set out herein. Forward-looking Statements are made as of the date hereof and the Company disclaims any obligation to update any Forward-looking Statements, whether as a result of new information, future events, or results or otherwise, except as required by law. There can be no assurance that these Forward-looking Statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, investors should not place undue reliance on Forward-looking Statements.

Cautionary Note to United States Investors Concerning Estimates of Reserves and Resources

All reserve and resource estimates included in this news release have been prepared in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects ("NI 43-101") and the Canadian Institute of Mining, Metallurgy, and Petroleum Definition Standards on Mineral Resources and Mineral Reserves. NI 43-101 is a rule developed by the Canadian Securities Administrators that establishes standards for public disclosure by a Canadian company of scientific and technical information concerning mineral projects. All Mineral Reserve and Mineral Resource estimates contained in the technical disclosure have been prepared in accordance with NI 43-101 and the Canadian Institute of Mining, Metallurgy and Petroleum Definition Standards on Mineral Resources and Reserves. Canadian standards, including NI 43-101, differ significantly from the requirements of the Securities and Exchange Commission, and mineral reserve and resource information included in this news release may not be comparable to similar information disclosed by U.S. companies.

Appendix 1: Séguéla Mine drill program: Sunbird Deposit drill holes and assay results

HoleIDEasting
(WGS84_29N)
Northing
(WGS84_29N)
Elev.
(m)
EOH1,2
Depth
(m)
UTM
Azimuth
DipDepth2
From

(m)
Depth2 To
(m)
Drilled2
Width
(m)
ETW3
(m)
Au
(ppm)
Hole
Type
4
Area
SGRD247274247889251155454090-6049249642.84.2RCDSunbird
SGRD247374249789253655250090-6041842021.43.2RCDSunbird
       47848464.215.4RCDSunbird
      Incl.48048332.126.2RCDSunbird
SGRD24747424758925375516090-60    NSIRCDSunbird
SGRD247574247889259054254090-605045231913.34.1RCDSunbird
      Incl.50450510.713.6RCDSunbird
SGRD247674247589271352656090-6051852242.83.5RCDSunbird
SGRD247774250189256355150790-6048348632.110.9RCDSunbird
      Incl.48548610.723.5RCDSunbird
       48949674.913.9RCDSunbird
      Incl.49249532.127.5RCDSunbird
SGRD2478742473892687529563.890-6051351521.43.5RCDSunbird
SGRD24797424758926125413690-60Not sampledabandoned   RCDSunbird
SGRC248074247789261254159490-6054955896.33.2RCDSunbird
       56256532.115.8RCDSunbird
      Incl.56256421.421.8RCDSunbird
       56957121.45.7RCDSunbird
SGRC24817424518925115582990-60Not sampledabandoned   RCDSunbird
SGDD142742446892560526214.690-60Not sampledabandoned   DDSunbird
SGRD24837424498926875294290-60    NSIRCDSunbird
SGRD248474245289266153362790-6058859132.110.7RCDSunbird
      Incl.58959010.727.9RCDSunbird
SGRD248574244889271252661090-6058158432.15.7RCDSunbird
SGRD2487742477892537551540.790-604995161711.94.1RCDSunbird
      Incl.50150210.710.2RCDSunbird
SGRD24907424948924855434890-60    NSIRCDSunbird
SGRD249174247689263953456790-60513525128.45.2RCDSunbird
      Incl.51351521.412.0RCDSunbird
      And52152210.714.3RCDSunbird
       528540128.48.2RCDSunbird
      Incl.53353521.429.6RCDSunbird
SGDD145742425892513563624.290-6058759032.12.7DDSunbird
       59359632.18.1DDSunbird
      Incl.59459621.411.0DDSunbird
       60261196.34.3DDSunbird
       61461842.88.0DDSunbird
      Incl.61661710.711.1DDSunbird
SGDD147742391892463567660.190-6010410621.43.2DDSunbird
       62462732.15.4DDSunbird
       634647139.13.9DDSunbird
      Incl.64264310.710.9DDSunbird
SGDD14874242589253656362290-6053053110.773.5DDSunbird
       5645912718.96.1DDSunbird
      Incl.56957010.725.4DDSunbird
      And57457510.727.4DDSunbird
      And58959010.716.8DDSunbird
SGRD2489742453892488558610.690-6051651821.42.6RCDSunbird
       54654710.76.9RCDSunbird
SGDD149742357892411565720.190-6068669264.213.0DDSunbird
      Incl.68668821.431.1DDSunbird

Notes:
1. EOH: End of hole
2. Depths and widths reported to nearest significant decimal place
3. NSI: No significant intercepts
4. ETW: Estimated true width
5. RC: reverse circulation drilling | DD: diamond drilling tail | RCD: reverse circulation drilling with diamond tail

Photos accompanying this announcement are available at:

https://www.globenewswire.com/NewsRoom/AttachmentNg/9e07d11d-3d8b-4245-a263-083d1936adaf

https://www.globenewswire.com/NewsRoom/AttachmentNg/094b822b-6764-4475-9bf7-df67b54d1e53

A PDF accompanying this announcement is available at:

http://ml.globenewswire.com/Resource/Download/d7e6b808-165a-45bf-98cb-66261806fb9f


FAQ

What Sunbird drill results did Fortuna (FSM) report on February 12, 2026?

They reported 22 drill holes totaling 9,816 meters, extending mineralization about 400 meters beyond existing resources. According to the company, highlights include 6.1 g/t Au over 18.9 meters and 73.5 g/t Au over 0.7 meters.

How do the Feb 12, 2026 Sunbird results affect Fortuna's (FSM) Séguéla Mineral Resources?

The results are currently not included because all holes were completed after the June 30, 2025 cut‑off date. According to the company, the new drilling will be considered for future resource updates after validation and modelling.

What drilling program scale did Fortuna (FSM) report for Sunbird on Feb 12, 2026?

Fortuna reported 22 new holes totaling 9,816 meters and five rigs active at Sunbird. According to the company, drilling focuses on infill and extending the lower high‑grade shoot throughout 2026.

Which notable high‑grade intercepts were announced by Fortuna (FSM) at Sunbird?

Notable intercepts include 6.1 g/t Au over an estimated true width of 18.9 meters and 73.5 g/t Au over 0.7 meters. According to the company, multiple other multi‑gram intercepts support deeper continuity of mineralization.

Is the Sunbird mineralization still open and will Fortuna (FSM) continue drilling in 2026?

Yes — mineralization at Sunbird remains open at depth and along strike, and drilling is expected to continue through 2026. According to the company, ongoing work targets linkage between upper and lower shoots and resource extension.
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