Fortuna drills 8.6 g/t gold over 13.6 meters at Southern Arc prospect, Diamba Sud Project, Senegal

VANCOUVER, British Columbia, May 27, 2025 (GLOBE NEWSWIRE) -- Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to provide an update on its exploration programs at the Diamba Sud Gold Project in Senegal. Diamba Sud Gold Project exploration highlights Paul Weedon, Senior Vice President of Exploration, commented, “Our exploration work at Diamba Sud continues to yield strong results, particularly from areas with limited historical drilling. Notably, recent drilling at the Southern Arc prospect has delivered some of our most compelling intercepts to date - highlighted by 8.6 g/t gold over an estimated true width of 13.6 meters in hole DSR906, and 9.3 g/t gold over 11.8 meters in hole DSDD404. These results further reinforce the project’s potential for near-term resource growth.” Mr. Weedon concluded, “Infill drilling at Area A, Area D, and Karakara has also returned highly encouraging results, including a standout intercept of 113.7 g/t gold over 6.4 meters estimated true width in hole DSDD385 at Area D. Meanwhile, regional target generation is progressing steadily, with systematic auger drilling identifying several promising gold-in-soil anomalies across the broader property.” Southern Arc Prospect Drilling highlights include: DSDD366:4.8 g/t Au13.0 g/t Au24.0 g/t Au over an estimated true width of 21.6 meters from 11 meters, includingover an estimated true width of 1.6 meters from 17 meters, and over an estimated true width of 1.6 meters from 26 metersDSDD367:4.0 g/t Au23.9 g/t Au over an estimated true width of 16.4 meters from 30 meters, includingover an estimated true width of 0.8 meters from 37 metersDSDD368:3.2 g/t Au55.3 g/t Au over an estimated true width of 20.8 meters from 89 meters, includingover an estimated true width of 0.8 meters from 91 metersDSDD400:2.2 g/t Au over an estimated true width of 18.4 meters from 24 metersDSDD402:8.6 g/t Au81.9 g/t Au over an estimated true width of 8.8 meters from 9 meters, including over an estimated true width of 0.8 meters from 9 metersDSDD404:1.0 g/t Au1.7 g/t Au9.3 g/t Au16.5 g/t Au33.4 g/t Au over an estimated true width of 4.5 meters from 41.3 meters, andover an estimated true width of 9.6 meters from 52 meters, and over an estimated true width of 11.8 meters from 72 meters, includingover an estimated true width of 0.8 meters from 72 meters, andover an estimated true width of 2.4 meters from 76 metersDSR906:8.6 g/t Au15.6 g/t Au17.3 g/t Au32.6 g/t Au over an estimated true width of 13.6 meters from 135 meters, includingover an estimated true width of 1.6 meters from 136 meters, and over an estimated true width of 1.6 meters from 140 meters, and over an estimated true width of 0.8 meters from 143 meters Exploration drilling at the Southern Arc prospect (Figure 1) successfully intersected multiple zones of mineralization. The program, comprising 38 reverse circulation (RC) and diamond core drill holes for a total of 4,210 meters, was designed to test and refine the geological model - focusing on lithological and structural interactions and their controls on mineralization. Mineralization at Southern Arc is hosted within an extensive hematite-altered tectonic breccia and occurs as stockworks or discrete veins - consistent with other prospects across the Diamba Sud Project. Figure 2 illustrates the relationship between the tectonic breccia, mineralization, and the overlying limestone units. Importantly, mineralization remains open at depth and along strike, with further drilling ongoing. Results from this program will be incorporated into the next Diamba Sud resource update. In addition, several nearby coincident geochemistry and geophysical anomalies further underscore the exploration potential of Southern Arc, including possible linkages to the adjacent Kassasoko deposit, located approximately one kilometre to the west. Figure 1: Diamba Sud Project location plan. Current deposits are highlighted in blue. Figure 2: Cross Section through Southern Arc prospect showing recent results. Oblique section line, view is looking north-east. Area A, Area D, and Karakara deposit infill drilling highlights include: Area A DSDD395:1.7 g/t Au12.2 g/t Au25.5 g/t Au over an estimated true width of 18.4 meters from 23 meters, andover an estimated true width of 8.0 meters from 65 meters, including over an estimated true width of 2.4 meters from 68 metersArea A DSDD399:1.8 g/t Au3.0 g/t Au14.6 g/t Au17.4 g/t Au10.5 g/t Au over an estimated true width of 5.6 meters from 135 meters, andover an estimated true width of 28.8 meters from 153 meters, includingover an estimated true width of 0.8 meters from 158 meters, andover an estimated true width of 0.8 meters from 165 meters, andover an estimated true width of 0.8 meters from 167 metersArea D DSDD3851:113.7 g/t Au254.3 g/t Au2.6 g/t Au29.7 g/t Au over an estimated true width of 6.4 meters from 26 meters, includingover an estimated true width of 2.8 meters from 27 metersover an estimated true width of 40.0 meters from 39 meters, includingover an estimated true width of 1.2 meters from 47.5 metersArea D DSDD389:3.4 g/t Au26.6 g/t Au2.0 g/t Au over an estimated true width of 20.8 meters from 20 meters, includingover an estimated true width of 1.6 meters from 41 meters, andover an estimated true width of 13.6 meters from 61 metersKarakaraDSDD393:1.5 g/t Au3.4 g/t Au17.6 g/t Au45.2 g/t Au over an estimated true width of 16.8 meters from 67 meters, and over an estimated true width of 19.2 meters from 119 meters, including over an estimated true width of 0.8 meters from 119 metersover an estimated true width of 0.8 meters from 122 metersKarakara DSR869:4.8 g/t Au17.5 g/t Au12.9 g/t Au over an estimated true width of 10.4 meters from 82 meters, includingover an estimated true width of 1.6 meters from 86 meters, and over an estimated true width of 0.8 meters from 93 meters DSDD385 includes intervals of lost core due to poor drilling conditions. These intervals have been assigned nil assay value for interval calculation. An additional 33 drill holes for a total of 4,550 meters were completed at Area A, Area D, and Karakara (Figure 1), concluding a final round of infill drilling. This program was designed to achieve several key objectives: increasing resource confidence in targeted zones and confirming the geological controls on high-grade mineralization at depth. Notably, several drill holes intersected mineralization adjacent to - but outside - the currently proposed open pit boundaries, indicating potential for further resource growth. For example, hole DSDD399 at Area A returned 3.0 g/t gold over an estimated true width of 28.8 meters from a depth of 153 meters (Figure 3), while hole DSDD385 at Area D intersected 2.6 g/t gold over 40 meters estimated true width (Figure 4). These encouraging results will be incorporated into the forthcoming resource update for the Diamba Sud Project and underscore the potential for future resource expansion, particularly in Area A. Figure 3: Cross section through Area A deposit with results from DSDD399 - view looking east. Figure 4: Cross section through Area D deposit with results from DSDD385 - view looking east Moungoundi and Moungoundi North prospects MoungoundiDSDD347:1.7 g/t Au2.1 g/t Au over an estimated true width of 5.6 meters from 52 meters, andover an estimated true width of 8.0 meters from 75.1 metersMoungoundiDSDD348:4.0 g/t Au2.0 g/t Au over an estimated true width of 3.2 meters from 74 meters, and over an estimated true width of 14.6 meters from 89 metersMoungoundiDSR843:2.1 g/t Auover an estimated true width of 8.8 meters from 20 metersMoungoundi NorthDSR819:11.3 g/t Au28.1 g/t Au23.5 g/t Au46.5 g/t Au over an estimated true width of 15.4 meters from 38 meters, includingover an estimated true width of 1.4 meters from 44 meters, andover an estimated true width of 1.4 meters from 49 meters, andover an estimated true width of 1.4 meters from 52 metersMoungoundi NorthDSR825:5.1 g/t Au32.9 g/t Au over an estimated true width of 4.9 meters from 33 meters, including over an estimated true width of 0.7 meters from 37 meters Exploration drilling at the pre-resource stage Moungoundi prospect and its northern extension, Moungoundi North - located approximately 300 meters to the northeast - was successfully completed, with a total of 85 RC and diamond core drill holes drilled for 9,472 meters. The program significantly improved the understanding of this geologically and structurally complex area, characterized by intercalated tectonic breccias, carbonate metasediments, and granitic and dioritic intrusive units. Mineralization is typically associated with various vein arrays, preferentially hosted within the tectonic breccias. Results from this program will be incorporated into the next resource update for the Diamba Sud Project, contributing valuable insight into the broader mineral system. Western Splay deposit DSDD362:3.2 g/t Au over an estimated true width of 8.1 meters from 39 metersDSDD390:1.5 g/t Au over an estimated true width of 26.1 meters from 5 metersDSR785:5.1 g/t Au15.2 g/t Au over an estimated true width of 13.5 meters from 49 meters, includingover an estimated true width of 2.7 meters from 59 metersDSR884:7.2 g/t Au34.7g/t Au over an estimated true width of 4.8 meters from 12 meters, includingover an estimated true width of 0.8 meters from 12 meters A total of 24 RC and diamond core drill holes, totalling 2,531 meters, were completed at the Western Splay deposit. The drill program was designed to test strike and dip extensions, perform select infill following the previous drilling campaign (refer to Fortuna news release dated: September 12, 2024), and the completion of the maiden resource estimate (refer to Fortuna news release dated: March 12, 2025). Geologically, Western Splay shares similarities with the adjacent Moungoundi prospect and comprises a series of tectonic breccias (previously classified as conglomerates), granitic and dioritic intrusive units, and metasediments. Mineralization is primarily associated with vein arrays preferentially hosted within the tectonic breccia units. This recent drilling campaign has strengthened confidence in the local geological interpretation and contributes to refining the broader geological and structural model at the project scale. Refer to Appendix 1 for full details of the drill holes and assay results for this drill program. 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 to ALS’s preparation laboratory in Kedougou, Senegal, before also being 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. Quality control procedures included the systematic insertion of blanks, duplicates and sample standards into the sample stream. In addition, the ALS laboratory inserted its 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 exploration activities in Argentina, Côte d’Ivoire, Mexico and Peru, as well as the Diamba Sud Gold Project located in Senegal. Sustainability is integral to all our operations and relationships. We produce gold and silver and generate shared value over the long-term for our stakeholders through efficient production, environmental protection, and social responsibility. For more information, please visit www.fortunamining.com. ON BEHALF OF THE BOARD Jorge A. Ganoza President, CEO, and DirectorFortuna Mining Corp. Investor Relations: Carlos Baca | info@fmcmail.com | fortunamining.com | X | LinkedIn | YouTube 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, statements about the potential of the Diamba Sud Gold Project based on the exploration results at the Southern Arc, Moungoundi and Moungoundi North prospects, and from the Area A, Area D, Karakara and Western Splay deposits; statements relating to the potential to progress prospects at the Diamba Sud Gold Project; expectations that results from the drill programs will be able to be expand the current mineral resource at the Diamba Sud Gold Project and will be incorporated into a mineral resource update; statements regarding the exploration potential at the Southern Arc prospect including possible linkages to the Kassasoko deposit;mineral reserve and mineral resource estimates; expectations regarding additional drilling and exploration programs planned; the Company’s business strategy, plans and outlook; the merit of the Company’s mines and mineral properties; mineral resource and reserve estimates; timelines; the future financial or operating performance of the Company; expenditures; approvals and other matters. Often, but not always, these Forward-looking Statements can be identified by the use of words such as “estimated”, “potential”, “open”, “future”, “assumed”, “projected”, “used”, “detailed”, “has been”, “gain”, “planned”, “reflecting”, “will”, “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, changes in general economic conditions and financial markets; changes in prices for gold, silver, and other metals; the timing and success of the Company’s proposed exploration programs; technological and operational hazards in Fortuna’s mining and mine development activities; risks inherent in mineral exploration; fluctuations in prices for energy, labor, materials, supplies and services; fluctuations in currencies; uncertainties inherent in the estimation of mineral reserves, mineral resources, and metal recoveries; the Company’s ability to obtain all necessary permits, licenses and regulatory approvals in a timely manner; governmental and other approvals; political unrest or instability in countries where Fortuna is active; labor relations issues; as well as those factors discussed under “Risk Factors” in the Company's Annual Information Form for the financial 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 expectations regarding the results from the exploration programs conducted at the Company’s mineral properties including the Séguéla Mine; expected trends in mineral prices and currency exchange rates; the accuracy of the Company’s information derived from its exploration programs at the Company’s mineral properties; current mineral resource and reserve estimates; the presence and continuity of mineralization at the Company’s properties; that the Company’s activities will be in accordance with the Company’s public statements and stated goals; that there will be no material adverse change affecting the Company or its properties; that all required approvals will be obtained; that there will be no significant disruptions affecting 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 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 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. Unless otherwise indicated, 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 HoleIDEasting (WGS84_29N)Northing (WGS84_29N)Elev. (m)EOH1,2 Depth (m)UTM AzimuthDipDepthFrom2,3 (m)Depth To2 (m)Drilled Width2 (m)ETW4 (m)Au (ppm)Hole Type5AreaDSDD395233176142958318521090-6023462318.41.7DDArea A 6575108.012.2DDArea A Incl.666710.821.0DDArea A and687132.425.5DDArea A 1261401411.20.6DDArea A 14414732.42.2DDArea ADSDD397233116142941118021090-5812913343.21.4DDArea A 16016997.21.9DDArea ADSDD399233139142938417919090-6013514275.61.8DDArea A 1531893628.83.0DDArea A Incl15815910.814.6DDArea A and16516610.817.4DDArea A and16716810.810.5DDArea ADSDD406233235142958018515090-6061043.21.8DDArea A 114.41172.62.13.0DDArea A 12413064.84.5DDArea A Incl12512610.820.7DDArea A 14314521.62.6DDArea A DSDD385232586142950318011590-60263486.4113.7DDArea D Incl2730.53.52.8254.3DDArea D and30.5310.50.4Core LossDDArea D and313210.813.8DDArea D 39895040.02.6DDArea D Incl404221.6Core LossDDArea D 434521.6Core LossDDArea D 4647.51.51.2Core LossDDArea D Incl47.54921.229.7DDArea D 495121.6Core LossDDArea D 535521.6Core LossDDArea D 6163.52.52.0Core LossDDArea DDSDD387232550142948418012290-60313986.41.9DDArea D 717986.42.5DDArea D Incl72.573.30.80.615.7DDArea D 73.3751.71.4Core LossDDArea DDSDD389232711142937417810090-6020462620.83.4DDArea D Incl414321.626.6DDArea D 61781713.62.0DDArea D Incl777810.810.5DDArea DDSDD39123248214294041788090-60111764.81.1DDArea D 262932.413.8DDArea D Incl282910.833.5DDArea D 5264129.60.7DDArea DDSDD39223285114294281815090-60NSI DDArea DDSDD394232457142942817811090-60748175.62.9DDArea D Incl798010.812.6DDArea D DSDD3432319111428448155182270-60NSI DDKaraKaraDSDD3442318771428300153149270-60969932.46.7DDKaraKara Incl969710.813.9DDKaraKara 12612710.831.3DDKaraKaraDSDD3452319471428170151143270-50NSI DDKaraKaraDSDD3462318701428447155122270-60NSI DDKaraKaraDSDD3532319581428153149149270-60NSI DDKaraKaraDSDD354231915142812315092270-60NSI DDKaraKaraDSDD3552319391428345153191270-60NSI DDKaraKaraDSDD3932318161428275152180270-60515654.01.9DDKaraKara 67882116.81.5DDKaraKara Incl808110.811.2DDKaraKara 103115129.61.2DDKaraKara 1191432419.23.4DDKaraKara Incl11912010.817.6DDKaraKara and12212310.845.2DDKaraKaraDSDD3962318841428401155130270-60NSI DDKaraKaraDSDD3982317241428178151150270-50253275.65.1DDKaraKara Incl252610.813.2DDKaraKara and293010.810.9DDKaraKara 384354.02.0DDKaraKara 758054.01.5DDKaraKara 858721.69.5DDKaraKara Incl858610.816.5DDKaraKara 134144108.01.8DDKaraKaraDSR7692318361428439155102265-60NSI RCKaraKaraDSR7702318441428425154120265-60NSI RCKaraKaraDSR7712318871428324153180265-60NSI RCKaraKaraDSR7722319031428297152132270-60NSI RCKaraKaraDSR7732318781428218153162265-60NSI RCKaraKaraDSR7742319281428147151114270-60657275.67.0RCKaraKara Incl666710.827.1RCKaraKara 94105118.81.3RCKaraKaraDSR7752315881428093151120340-50NSI RCKaraKaraDSR7762316511428082151174340-5012412954.01.4RCKaraKara 13313632.43.5RCKaraKara 14314854.02.1RCKaraKaraDSR8682318621428354154130270-606272108.00.8RCKaraKaraDSR8692317021428225152105270-55364154.02.3RCKaraKara 545954.02.0RCKaraKara 82951310.44.8RCKaraKara Incl868821.617.5RCKaraKara Incl939410.812.9RCKaraKaraDSR870231678142822515212690-6054691512.02.3RCKaraKara 737854.02.5RCKaraKara 11311743.22.1RCKaraKaraDSR8712316991428152151120270-55172143.21.9RCKaraKaraDSR8722317621428279152140270-60788464.87.2RCKaraKara Incl808221.614.8RCKaraKara 1081221411.22.8RCKaraKara Incl11411510.816.2RCKaraKara DSDD347230892142683215311590-50525975.61.7DDMoungoundi 75.185.1108.02.1DDMoungoundiDSDD348230782142692515412690-50747843.24.0DDMoungoundi Incl777810.810.5DDMoungoundi 89107.21814.62.0DDMoungoundi Incl10210310.811.0DDMoungoundiDSDD34923090314269631568090-50NSI DDMoungoundiDSDD352230727142693215417090-50NSI DDMoungoundiDSDD356230696142687015310290-60NSI DDMoungoundiDSDD357230752142686515312690-60NSI DDMoungoundiDSDD358230700142684915212090-55293232.42.1DDMoungoundi 757943.21.4DDMoungoundi 91102118.81.3DDMoungoundi 10911121.62.6DDMoungoundiDSDD359230670142682115212190-55121532.42.2DDMoungoundi 273143.21.4DDMoungoundi 616764.81.4DDMoungoundiDSDD360230647142679615111090-55NSI DDMoungoundiDSDD36123062514267641508990-55NSI DDMoungoundiDSDD37223083514269361558990-5049631411.20.7DDMoungoundiDSDD37323066814268461521319060818986.43.0DDMoungoundi 818210.810.6DDMoungoundi 11311521.65.4DDMoungoundiDSDD374230635142681915111090-55727864.82.2DDMoungoundiDSDD375230616142679615112290-55NSI DDMoungoundiDSDD382230455142680014811990-50NSI DDMoungoundiDSDD3832310701426749154134270-55NSI DDMoungoundiDSDD3842310891426697153135270-558494.4108.31.8DDMoungoundiDSR777230896142687915413885-50545732.41.7RCMoungoundiDSR77823089714269881569690-60NSI RCMoungoundiDSR77923065214267591508490-60NSI RCMoungoundiDSR78023067614267271508490-60NSI RCMoungoundiDSR781230920142688315411490-50NSI RCMoungoundiDSR78223085314267881539690-50495232.42.9RCMoungoundiDSR783230907142680115310390-50909886.42.4RCMoungoundiDSR7842307271426865152102100-60415118.80.8RCMoungoundiDSR801230957142680015410280-50NSI RCMoungoundiDSR802230903142675015310280-50NSI RCMoungoundiDSR80323085214267601537890-50NSI RCMoungoundiDSR804231340142680115313290-50606221.64.4RCMoungoundiDSR806230869142699515610290-60NSI RCMoungoundiDSR807230675142687615210290-60455164.81.3RCMoungoundiDSR808230704142693115317190-50131143129.60.6RCMoungoundiDSR809231001142700415712090-50NSI RCMoungoundiDSR810230825142694715512680-50778143.22.4RCMoungoundiDSR811230776142694715513290-50NSI RCMoungoundiDSR812230804142686515311490-60NSI RCMoungoundiDSR813230901142701115712090-50NSI RCMoungoundiDSR8282310081426821155126265-55475032.42.5RCMoungoundiDSR8292309301426862154120150-505465118.81.4RCMoungoundiDSR8302309711426853155108270-55505443.21.6RCMoungoundiDSR831230996142680215584270-55131854.02.5RCMoungoundi 262821.69.1RCMoungoundi Incl272810.816.5RCMoungoundiDSR843231023142675115496270-552031118.82.1RCMoungoundi Incl242510.811.2RCMoungoundiDSR8442310391426699153114270-55778475.61.2RCMoungoundiDSR845230996142687915696270-55NSI RCMoungoundiDSR8462310131426927157120270-55NSI RCMoungoundiDSR8472310301426944157114150-50NSI RCMoungoundiDSR848230805142701215612090-50NSI RCMoungoundiDSR849230749142701415513290-50NSI RCMoungoundiDSR862230423142680214813290-55NSI RCMoungoundiDSR863230455142684314910290-55NSI RCMoungoundiDSR887230962142675915310090-503521.67.1RCMoungoundi Incl3410.812.6RCMoungoundiDSR888230638142685115215090-50NSI RCMoungoundiDSR889230869142687815411090-50NSI RCMoungoundiDSR890230777142687115313090-60NSI RCMoungoundi DSDD376231200142780015582270-50NSI DDMoungoundi NorthDSDD377231192142785415692270-50NSI DDMoungoundi NorthDSDD3782312191427893155128270-50NSI DDMoungoundi NorthDSDD3792311891427752156110270-50122197.20.6DDMoungoundi NorthDSDD3802311881427697156113270-50NSI DDMoungoundi NorthDSDD3812311561427545157101270-50NSI DDMoungoundi NorthDSR80523095414278011589090-55555721.43.5RCMoungoundi NorthDSR814231017142759615710290-50NSI RCMoungoundi NorthDSR815230968142759815810290-50NSI RCMoungoundi NorthDSR816230918142760015811490-50NSI RCMoungoundi NorthDSR817230917142780015810890-55NSI RCMoungoundi NorthDSR818231131142780515610890-551226149.82.4RCMoungoundi North 4454107.00.5RCMoungoundi NorthDSR81923110014278471569690-5038602215.411.3RCMoungoundi North Incl404110.711.2RCMoungoundi North and444621.428.1RCMoungoundi North and495121.423.5RCMoungoundi North and525421.446.5RCMoungoundi NorthDSR820231053142785215610290-50NSI RCMoungoundi NorthDSR82123100014278501579690-50NSI RCMoungoundi NorthDSR82223094814278501579690-50NSI RCMoungoundi NorthDSR82323090414278481579090-50NSI RCMoungoundi NorthDSR824230795142774715810890-50NSI RCMoungoundi NorthDSR825230853142774715810890-50334074.95.1RCMoungoundi North Incl373810.732.9RCMoungoundi NorthDSR826230902142775515810290-50NSI RCMoungoundi NorthDSR827230951142775215711490-50NSI RCMoungoundi NorthDSR850230991142720015710890-50NSI RCMoungoundi NorthDSR851230943142720115712690-50NSI RCMoungoundi NorthDSR8522311761427602156102270-50NSI RCMoungoundi NorthDSR8532312101427647156102270-50NSI RCMoungoundi NorthDSR8542312401427695156108270-50NSI RCMoungoundi NorthDSR8552312681427893154138270-50596010.811.2RCMoungoundi NorthDSR8562312981427950153120270-50NSI RCMoungoundi NorthDSR8572311381427502157108270-50NSI RCMoungoundi NorthDSR858231121142745115790270-50NSI RCMoungoundi NorthDSR8592311961427400157138270-50NSI RCMoungoundi North DSDD350231158142627314617390-50151832.77.4DDWestern Splay Incl151610.918.3DDWestern Splay 111114.643.22.1DDWestern Splay 12312854.54.8DDWestern Splay Incl12612710.910.6DDWestern Splay 133144119.91.6DDWestern SplayDSDD351231203142625614614990-50NSI DDWestern SplayDSDD36223122314263781558990-50394898.13.2DDWestern SplayDSDD363231153142634714722190-6615616265.41.3DDWestern SplayDSDD364230936142625514513790-50NSI DDWestern SplayDSDD37123125614263801477790-50222865.41.2DDWestern SplayDSDD38623110314262811457090-501222108.01.0DDWestern SplayDSDD38823109514261951458090-60NSI DDWestern SplayDSDD390231235142632614715590-555342926.11.5DDWestern Splay 637076.30.8DDWestern SplayDSR78523119714263781497290-5049641513.55.1RCWestern Splay Incl596232.715.2RCWestern SplayDSR786231213142627314614490-50NSI RCWestern SplayDSR787231282142630114684100-50NSI RCWestern SplayDSR7912314981426220148126150-509910010.95.7RCWestern SplayDSR86423097514263991476090-60NSI RCWestern SplayDSR86523107214263931478090-60NSI RCWestern SplayDSR86623110914262981466090-50474921.68.5RCWestern Splay Incl474810.815.8RCWestern SplayDSR867231041142632814612090-50NSI RCWestern SplayDSR87423111114262411459090-55262821.65.2RCWestern SplayDSR880231267142624614610290-50NSI RCWestern SplayDSR88123133514262441477090-50NSI RCWestern SplayDSR88223133814263001488090-50NSI RCWestern SplayDSR88323134214263491497090-50NSI RCWestern SplayDSR884231311142637414910290-50121864.87.2RCWestern Splay Incl121310.834.7RCWestern SplayDSR885231280142637314912090-50NSI RCWestern Splay DSR8602308991425856149789050NSI RCWestern Splay SthDSR873230648142607115110890-50NSI RCWestern Splay SthDSR86123085214258461511089050NSI RCWestern Splay Sth DSR788231908142598114478150-55NSI RCKassassokoDSR789231917142596514490150-55NSI RCKassassokoDSR790231914142593614478150-50NSI RCKassassokoDSR8752316211425876144147150-533410.818.7RCKassassoko 64771310.41.1RCKassassoko 899232.42.6RCKassassoko 12012110.85.9RCKassassokoDSR8762316081425897145120150-53313764.80.8RCKassassoko 66882217.62.4RCKassassoko Incl777810.828.7RCKassassokoDSR886231443142609114311495-50NSI RCKassassoko DSDD365232238142624414468150-5039.4543.943.63.2DDSouthern ArcDSDD366232376142632514662150-5011382721.64.8DDSouthern Arc Incl171921.613.0DDSouthern Arc and262821.624.0DDSouthern ArcDSDD3672323981426409147125150-503050.452016.44.0DDSouthern Arc 373810.823.9DDSouthern Arc 434410.811.0DDSouthern ArcDSDD3682325711426250146140150-50434743.21.5DDSouthern Arc 891152620.83.2DDSouthern Arc Incl919210.855.3DDSouthern ArcDSDD3692327951426235144113150-50NSI DDSouthern ArcDSDD3702326201426268146146150-50NSI DDSouthern ArcDSDD4002323801426344147120150-5024472318.42.2DDSouthern ArcDSDD401232339142632514693150-50NSI DDSouthern ArcDSDD4022323651426411148137150-50920118.88.6DDSouthern Arc Incl91010.881.9DDSouthern Arc 5153.42.41.95.9DDSouthern Arc 57.25580.750.612.8DDSouthern Arc 757832.46.3DDSouthern ArcDSDD4032323741426455148140150-50NSI DDSouthern ArcDSDD4042323221426399147123150-5041.35475.654.51.0DDSouthern Arc 5264129.61.7DDSouthern Arc 7286.7514.7511.89.3DDSouthern Arc Incl727310.816.5DDSouthern Arc and767932.433.4DDSouthern ArcDSDD4052324661426430147140150-50NSI DDSouthern ArcDSDD4072325451426184144122150-50NSI DDSouthern ArcDSR7922323021426245144108150-50NSI RCSouthern ArcDSR7932322201426193145138160-50869043.23.7RCSouthern ArcDSR7942322031426135145102160-50NSI RCSouthern ArcDSR795232186142616714590150-50NSI RCSouthern ArcDSR7962322531426219144102155-501729129.62.8RCSouthern ArcDSR797232387142629114584150-5041397.20.8RCSouthern Arc 202443.23.3RCSouthern ArcDSR7982324311426317146114150-50NSI RCSouthern ArcDSR799232344142627414572150-50NSI RCSouthern ArcDSR8002321691426285146138150-50NSI RCSouthern ArcDSR832232397142632814666150-5022361411.22.3RCSouthern Arc Incl252610.811.6RCSouthern ArcDSR833232404142635514790150-50NSI RCSouthern ArcDSR834232262142626214972150-50NSI RCSouthern ArcDSR835232154142621414610215050NSI RCSouthern ArcDSR83623210714261911468115050NSI RCSouthern ArcDSR8372324241426450147114150-50NSI RCSouthern ArcDSR8382326181426419146120150-50NSI RCSouthern ArcDSR8392325211426225145102150-50NSI RCSouthern ArcDSR8402325141426346146132150-50353721.63.3RCSouthern ArcDSR841232664142628715396150-50313543.21.7RCSouthern ArcDSR8422324631426307146138150-5011712475.60.8RCSouthern ArcDSR8912324321426385147100150-50535521.66.0RCSouthern ArcDSR8922324901426384147114150-50NSI RCSouthern ArcDSR8932325601426372146100150-50NSI RCSouthern ArcDSR9062323051426435148198150-501351521713.68.6RCSouthern Arc Incl13613821.615.6RCSouthern Arc and14014221.617.3RCSouthern Arc and14314410.832.6RCSouthern ArcDSR9072323501426362147108150-50323975.61.0RCSouthern Arc Notes: 1. EOH: End of hole2. Depths and widths reported to nearest significant decimal place 3. NSI: No significant intercepts4. ETW: Estimated true width5. 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/e6835c12-224a-4823-8c46-45cf1ed07009 https://www.globenewswire.com/NewsRoom/AttachmentNg/184948a7-159f-4705-89e7-819fb03d2668 https://www.globenewswire.com/NewsRoom/AttachmentNg/4defb56e-036d-44a6-8f06-ad6ae3b9e410 https://www.globenewswire.com/NewsRoom/AttachmentNg/5a7beeea-cb6d-46be-8faa-5cb28a19e79b PDF available: http://ml.globenewswire.com/Resource/Download/89a94afb-079c-4816-aed1-39f61133d9ab

Fortuna drills 8.6 g/t gold over 13.6 meters at Southern Arc prospect, Diamba Sud Project, Senegal

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