{"success":true,"data":{"pressRelease":{"id":"174748","rtpr_id":"nGNX5XnSqy-20261020","ticker":"DSV","exchange":"TSX","all_tickers":["DSV"],"title":"Drilling at Dome Continues to Confirm Large-Scale, Open-Pit Potential; New, High-Grade Intersections Extend Mineralization 600 Metres to South","author":"Globe Newswire","published_at":"2026-10-20T21:15:00.239Z","article_body":"Drilling on south side of resource pit extends mineralization by 600 metres\n* 3.41 gpt over 17.3m; 1.42 gpt over 17.0m;\n* 1.71 gpt over 19.1m, 11.41 gpt over 1.7m and 1.15 gpt over 12.9m;\n* 3.56 gpt over 21.0m and, 2.29 gpt over 4.0m;  \n* 2310.00 gpt over 1.0m, 2.09 gpt over 9.3m, 6.52 gpt over 4.2m and 2.01 gpt\nover 14.0m;\n* 195.00 gpt over 0.6m, 1.98 gpt over 18.7m; 11.31 gpt over 6.7m including\n214.00 gpt over 0.3m;\n* 46.20 gpt over 1.0m, and 0.81 gpt over 14.6m;\n* 6.80 gpt over 5.0m and 3.75 gpt over 5.0m;\n* 56.50 gpt over 1.1m and 3.93 gpt over 5.0m;\n* 1.48 gpt over 22.0m, and 1.75 gpt over 14.9m;\n* 11.63 gpt over 9.0m, including 93.40 gpt over 1.0m, 1.40 gpt over 7.5m.\nDrilling¹ on north side of resource pit continues to confirm and identify new\nmineralization within and to north of current resource²\n* 331.0 gpt over 0.3m, 19.56 gpt over 6.1m including 279.00 gpt over 0.4m,\n51.60 gpt over 2.0m;\n* 72.54 gpt over 5.9m including 1400.00 gpt over 0.3m; 2.19gpt over 13.5m;\n* 5.28 gpt over 11.0m including 83.10 gpt over 0.3m; 2.42 gpt over 10.9m;\n* 17.92 gpt over 3.7m including 71.20 gpt over 0.8m; 5.48 gpt over 7.0m;\n* 3.48 gpt over 9.1m including 28.20 gpt over 0.8m,1.48 gpt over 9.0m, 3.87\ngpt over 7.0m;\n* 2.34 gpt over 14.3m and 51.87 gpt over 1.8m;\n* 140.28 gpt over 2.6m, including 1170.00 gpt over 0.3m.\nNew resource estimate remains on track for Q1 2027\n1. All assays are reported uncut.\n2. Intervals are reported using core lengths only as true widths are not known\nat this time. \n3. In this news release, “gpt” refers to grams per tonne, and “m”\nrefer to metres.\nTORONTO, Oct. 20, 2026 (GLOBE NEWSWIRE) -- Discovery Mining Ltd. (TSX: DSV,\nOTCQX: DSVSF) (“Discovery” or the “Company”) today reported results\nfrom ongoing exploration at the Company’s advanced stage growth project at\nDome. The results, which include assays from a combined total of 36 holes(1)\n(16,365.4 m) continued to expand mineralization, indicated excellent\ncorrelation of widths and grades to previous drilling and clearly demonstrated\nthe upside that exists at the project.\n\nTony Makuch, Discovery’s President, CEO and Chairman, commented: “The\nhigh-grade intersections reported today further demonstrate the tremendous\npotential that exists for Dome Mine to resume operations as a large-scale,\nlong-life open-pit mining operation. The results identify new areas of\nmineralization that support our view that we can expand the open pit and\nsignificantly grow our resource base. Particularly encouraging were high-grade\nintersections that extend the mineralization 600 m to the south of the current\nresource pit. The mineralized zones identified follow the trend of the Dome\nFault and remain open to the west along the fault that extends through the\nneighbouring Paymaster property. Also encouraging were a number of shallow\nintersections in new zones identified to the north of the main mineralization.\n\n“As with recent exploration success at our Pamour mine, the drill results at\nDome clearly demonstrate the potential for a much larger open-pit operation\nthan was previously envisioned, with the opportunity existing for further\nexpansion of mineralization to the north, south and west. Based on the upside\nthat exists, we are now re-evaluating our future plans for the Dome Mill, and\nwill be considering the establishment of a large, central milling facility at\nthe Kidd Metallurgical site to provide processing for all of our operations.\n\n“Work to update the current 11.0 million ounce inferred mineral resource at\nDome is progressing well and remains on track for release as part of a\ntechnical report for our Porcupine operations early in 2027.”\n\nThe 36 holes reported today from the Dome project were from two main areas,\nincluding the north side of the current mineral resource pit and the south\nside of the pit near the former Preston and New York Porcupine\nproperties (Figure 1).\n\nDome is among the largest historic gold producers in Canada, with total\nproduction of 16.7 million ounces from both underground and open pit sources\nbetween 1910 and 2017.\n\nGeologically, the mine is located on the south limb of the Porcupine Syncline\nand is just north of the Destor Porcupine Fault. Mineralization in the current\nopen-pit resource extends from surface to a maximum depth of approximately 730\nm, with additional mineralization in multiple zones extending to a further\ndepth of approximately 1,600 m.\n\nThe current mineral resource at Dome includes 222.3 million tonnes with an\naverage grade of 1.49 gpt for a total of 11.0 million ounces in the Inferred\nresource category. The resource assumes a large-scale, open-pit concept to\nexpand the historic pit along strike and to depth.\n\nA key objective of the 2026 drilling program is the completion of a new\nmineral resource estimate, to be released in early 2027. The 2026 work program\nalso includes further evaluations of data and mineralization models to upgrade\nportions of the resource to the Indicated resource category, and to evaluate\nthe potential for future underground mining at Dome.\n\nDrilling on the south side of the resource pit included 22 holes (7,188.0 m)\nto evaluate mineralization between the south edge and up to 600 m southwards\nalong the projected trend of the Dome Fault and contained multiple holes with\nexcellent grades and widths. Significant results include: 3.41 gpt over 17.3m\nand 1.42 gpt over 17.0m in hole DOM26-046; 1.71 gpt over 19.1m, 11.41 gpt over\n1.7m, 1.15 gpt over 12.9m in hole DOM26-047; 3.56 gpt over 21.0m and 2.29 gpt\nover 4.0m in hole DOM26-044, 2.53 gpt over 6.0m, 2310.00 gpt over 1.0m, 2.09\ngpt over 9.3m, 3.16 gpt over 3.7m, 6.52 gpt over 4.2m and 2.01 gpt over 14.0m\nin hole DOM26-048 and; 195.00 gpt over 0.6m, 46.20 gpt over 1.0m, 0.81 gpt\nover 14.6m, 1.98 gpt over 18.7m, and 11.31 gpt over 6.7m, including 214.00 gpt\nover 0.3m in hole DOM26-071; 6.80 gpt over 5.0m and 3.75 gpt over 5.0m in hole\nDOM26-042, which targeted between 100 and 300 meters south of the current\nresource pit, as well as 56.50 gpt over 1.1m and 3.93 gpt over 5.0m, in hole\nDOM26-049; 1.48 gpt over 22.0m, and 1.75 gpt over 14.9m, in hole DOM26-061A\nand; 1.40 gpt over 7.5m, 4.44 gpt over 3.0m, and 11.63 gpt over 9.0m,\nincluding 93.40 gpt over 1.0m in hole DOM26-063, which were drilled between\n400 to 600 meters to the south (Table 1). Based on current interpretations,\nthe mineralized zones identified in the new drilling follow the trend of the\nDome Fault and remain open to the west along the projected trace of the fault\nfor a minimum 1.5 kms before the fault passes through the Paymaster #2 and #3\nshaft area and converges with the Destor Porcupine Fault Zone. The Paymaster\n#2 and #3 shaft area is located on the Paymaster joint venture property which\nwas recently acquired along with the Fuller Block from McEwen Mining Inc (see\npress release October 9, 2026).\n\nDrilling on the north side of the resource pit included 14 holes (9,177.4 m)\nand was also very successful with multiple holes obtaining significant\nintersections both within and on the north side of the current resource.\nEspecially encouraging is the fact that several of the intersections were at\nshallow depths and in new structures north of the main body of mineralization.\nSignificant results include 331.0 gpt over 0.3m, 19.56 gpt over 6.1m including\n279.00 gpt over 0.4m and 51.60 gpt over 2.0m including 102.00 gpt over 1.0m in\nhole DOM26-019, 72.54 gpt over 5.9m including 1400.00 gpt over 0.3m, and 2.19\ngpt over 13.5m in hole DOM26-052, 5.28 gpt over 11.0m including 83.10 gpt over\n0.3m, 27.10 gpt over 0.5m, 5.48 gpt over 2.2m and 2.42 gpt over 10.9m in hole\nDOM26-054, 27.20 gpt over, 0.4m, 17.92 gpt over 3.7m including 71.20 gpt over\n0.8m, and 5.48 gpt over 7.0m in hole DOM26-051, 9.90 gpt over 1.6m, 3.48 gpt\nover 9.1m including 28.20 gpt over 0.8m, 1.81 gpt over 9.0m, and 3.87 gpt over\n7.0m in hole DOM26-056, 2.34 gpt over 14.3m and 51.87 gpt over 1.8m in hole\nDOM26-053, and 140.28 gpt over 2.6m including 1170.00 gpt over 0.3m in hole\nDOM26-058 (Table 1).\n\nDrilling at the project is continuing with two drills, one located in the\nsouthwest portion of the historic open pit and the other on the north side.\nWork is also continuing to evaluate additional drill targets to the north,\nsouth and west sides of the pit. Considering results and progress to date, the\nproject remains on track for the planned resource update early in 2027. \n\nTable 1. Intercepts from New Drilling at Dome Project(1,2)(, 3) \n\n ZONE        Hole ID     Total Hole Depth  From   To     Core length  Au      Notes   \n             (m)                           (m)           (m)          (g/t)   \n North Area  DOM26-017   792.0             63.7   70.2   6.5          0.59    In Pit  \n             634.0                         635.0         1.0          9.67    In Pit  \n             DOM26-018A  614.0             654.2  656.5  2.3          6.89    Out     \n             778.5                         782.9  4.4    2.16         Out     \n             DOM26-012   585.0             347.0  349.0  2.0          5.13    Out     \n             379.0                         380.0  1.0    22.00        Out     \n             470.0                         474.0  4.0    1.39         In Pit  \n             493.3                         506.5  13.2   1.61         In Pit  \n             DOM26-013   459.5             328.3  337.0  8.7          3.12    Out     \n             DOM26-014   591.0             108.8  123.8  15.0         0.91    Out     \n             502.0                         503.0  1.0    12.65        In Pit  \n             DOM26-019   614.0             385.7  386.0  0.3          331.00  Out     \n             507.6                         513.7  6.1    19.56        Out     \n             incl                                                     \n             507.6                         508.0  0.4    279.00       \n             610.0                         612.0  2.0    51.60        In Pit  \n             incl                                                     \n             610.0                         611.0  1.0    102.00       \n             DOM26-052   650.0             540.0  541.0  1.0          12.30   Out     \n             558.1                         564.0  5.9    72.54        Out     \n             incl                                                     \n             561.0                         561.3  0.3    1400.00      \n             635.2                         648.7  13.5   2.19         In Pit  \n             DOM26-054   781.4             340.0  351.0  11.0         5.28    Out     \n             incl                                                     \n             347.1                         347.4  0.3    83.10        \n             511.9                         512.4  0.5    27.10        Out     \n             759.0                         761.2  2.2    5.48         Out     \n             768.0                         778.9  10.9   2.42         Out     \n             DOM26-051   516.0             106.1  106.5  0.4          27.20   Out     \n             431.3                         435.0  3.7    17.92        Out     \n             incl                                                     \n             432.1                         432.9  0.8    71.20        \n             488.0                         495.0  7.0    5.48         Out     \n             501.5                         503.8  2.3    5.39         Out     \n             DOM26-056   647.0             128.6  130.2  1.6          9.90    Out     \n             289                           298.1  9.1    3.48         Out     \n             incl                                                     \n             289.5                         290.3  0.8    28.20        \n             555.0                         564.0  9.0    1.81         In Pit  \n             590.0                         597.0  7.0    3.87         In Pit  \n             DOM26-053   805.0             739.9  754.2  14.3         2.34    Out     \n             802.2                         804.0  1.8    51.87        Out     \n             DOM26-058   663.2             658.0  660.6  2.6          140.28  Out     \n             incl                                                     \n             659.3                         659.6  0.3    1170.00      \n South Area  DOM26-046   240.0             45.7   63.0   17.3         3.41    Out     \n             100.9                         117.9         17.0         1.42    Out     \n             DOM26-047   300.0             69.9   89.0   19.1         1.71    Out     \n             104.8                         106.5  1.7    11.41        Out     \n             121.0                         133.9  12.9   1.15         Out     \n             175.5                         179.8  4.3    1.26         Out     \n             DOM26-044   240.0             35.0   56.0   21.0         3.56    Out     \n             76.0                          80.0   4.0    2.29         Out     \n             DOM26-048   300.0             139.0  145.0  6.0          2.53    Out     \n             149.0                         153.0  4.0    1.73         Out     \n             153.0                         154.0  1.0    2310.00      \n             154.0                         163.3  9.3    2.09         \n             196.3                         200.0  3.7    3.16         Out     \n             206.8                         211.0  4.2    6.52         Out     \n             224.0                         238.0  14.0   2.01         Out     \n             DOM26-049   420.0             163.0  164.1  1.1          56.50   Out     \n             171.0                         176.0  5.0    3.93         Out     \n             DOM26-039   300.0             216.0  218.0  2.0          3.08    Out     \n             254.0                         257.0  3.0    1.25         Out     \n             DOM26-041   300.0             45.9   50.5   4.6          1.41    Out     \n             55.0                          58.0   3.0    3.67         Out     \n             DOM26-042   240.0             77.0   82.0   5.0          6.80    Out     \n             88.0                          93.0   5.0    3.75         Out     \n             DOM26-060   402.0             168.0  182.1  14.1         0.69    Out     \n             DOM26-061A  402.0             174.3  196.3  22.0         1.48    Out     \n             284.0                         298.9  14.9   1.75         Out     \n             DOM26-062   402.0             158.1  166.0  7.9          1.93    Out     \n             DOM26-063   402.0             129.5  137.0  7.5          1.40    Out     \n             175.2                         178.2  3.0    4.44         Out     \n             209.0                         218.0  9.0    11.63        Out     \n             incl                                                     \n             213.0                         214.0  1.0    93.40        \n             DOM26-065   402.0             44.2   45.0   0.8          35.10   Out     \n             DOM26-067   336.0             170.2  171.0  0.8          27.70   Out     \n             DOM26-069   366.0             107.0  113.0  6.0          1.23    Out     \n             349.9                         357.8  7.9    0.59         Out     \n             DOM26-071   336.0             33.0   33.6   0.6          195.00  Out     \n             40.0                          41.0   1.0    46.20        Out     \n             85.0                          99.6   14.6   0.81         Out     \n             145.8                         164.5  18.7   1.98         Out     \n             181.3                         188.0  6.7    11.31        Out     \n             incl                                                             \n                                                  0.3    214.00       Out     \n                                                                                      \n1. All assays are reported uncut.\n2. Intervals are reported using core lengths only as true widths are not known\nat this time. \n3. Holes DOM26-055, 057, 068, 064, 040, 043, 045, 066 are not included in the\ntable above as they have lower grade values.\nLink to 3D Visuals: https://vrify.com/decks/24534\n\nFigure 1. Dome Results\n\n\n\nQUALIFIED PERSONS\nDiscovery’s exploration programs at the Porcupine Operations are conducted\nunder the supervision of Eric Kallio, P.Geo., Executive Vice President,\nExploration and Growth, Kara Byrnes, P.Geo, Vice President, Exploration and\nGeology – Porcupine and Steve Harding, P.Geo., Senior Geologist –\nExploration Growth Projects. Mr. Kallio, Ms. Byrnes and Mr. Harding are\n“qualified persons” for the purpose of National Instrument 43-101,\nStandards of Disclosure for Mineral Projects, of the Canadian Securities\nAdministrators, and have reviewed and approved the scientific and technical\ninformation in this news release.\n\nReaders are referred to the mineral resource estimate as set out in the\nCompany’s current technical report entitled “Porcupine Complex, Ontario,\nCanada NI 43-101 Report on Preliminary Assessment” with an effective date of\nJanuary 13, 2025 (the “Technical Report”), which is available under the\nCompany’s issuer profile on SEDAR+ at www.sedarplus.ca. Statements\nconcerning mineral resource estimates may also be deemed to constitute forward\nlooking information to the extent that they involve estimates of the\nmineralization that will be encountered if the property is developed. The\nTechnical Report includes the results of a preliminary economic assessment\nwhich is preliminary in nature. It includes inferred mineral resources that\nare considered too speculative geologically to have the economic\nconsiderations applied to them that would enable them to be categorized as\nmineral reserves and there is no certainty that the preliminary economic\nassessment will be realized. \n\nQA/QC CONTROLS\nThe Company follows a quality assurance and control (“QA/QC”) program to\nensure that sampling and analysis of all exploration work is conducted in\naccordance with best practices. \n\nCore is logged and sampled in a secure facility at the Dome mine site and\nunder supervision of Qualified Geologists.  The NQ sized drill core is\npredominantly sawn in half with one half of the core prepared for shipment,\nthe other half of core retained for future assay verification. CRM standards,\ncoarse blank material and duplicates are inserted every 20 samples. Core\nsamples are picked up by Activation Laboratories at the Dome Mine core\nfacility and tracked via a chain of custody from site to the lab for\npreparation and assaying. \n\nDiscovery utilizes the accredited external lab Activation Laboratories to\nmanage its core analysis. ActLabs is certified by the Standards Council of\nCanada which conforms with ASB-RG Mineral Analysis Laboratory for the\nAccreditation of Mineral Analysis Testing Laboratories and CAN-P-4E ISO/IEC\n17025: General Requirements for the Competence of Testing and Calibration\nLaboratories. \n\nSample preparation includes crushing drill core up to 80% passing 2 mm, riffle\nsplitting 500 grams and pulverizing to 95% passing 105 µm followed by both\nscheduled and specifically requested silica sand cleaning. Gold Analysis\ninvolves Fire Assay – Atomic Absorption technique from a 50-gram pulp sample\nwith grade ranges between 5 to 10,000 ppb. Samples greater than 10,000 ppb are\nanalyzed with a gravimetric finish. Selected high grade samples are also\nanalyzed using the screen metallics procedure.\n\nABOUT DISCOVERY\nDiscovery Mining Ltd. is a growing precious metals company that is creating\nvalue for stakeholders through exposure to gold, silver and other critical\nminerals. Discovery is advancing plans to more than double annual gold\nproduction through investment in the Company’s Porcupine assets, which\ninclude multiple operations, attractive growth projects and significant\nexploration upside in one of the world’s most renowned gold camps in and\nnear Timmins, Ontario. The acquisition of the Kidd Operations in June 2026\nfurther increased Discovery’s land position within the camp, provided\nvaluable infrastructure that will support the Company’s growing gold\nbusiness, and added critical minerals to the Company’s current production\nprofile. Discovery’s silver exposure comes mainly from the 100%-owned\nCordero project, one of the world’s largest undeveloped silver deposits,\nwhich is located close to infrastructure in a prolific mining belt in\nChihuahua State, Mexico.\n\nOn Behalf of the Board of Directors,\n\nTony Makuch, P. Eng\nPresident, CEO & Chairman\n\nFor further information contact:\nMark Utting, CFA\nEVP, Investor Relations and Communications\nPhone: 416-806-6298\nEmail: mark.utting@dsvmining.com \nWebsite: www.dsvmining.com \n\nCAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION\nThis news release may include forward-looking statements that are subject to\ninherent risks and uncertainties. All statements within this news release,\nother than statements of historical fact, are to be considered forward\nlooking. Although Discovery believes the expectations expressed in such\nforward-looking statements are based on reasonable assumptions, such\nstatements are not guarantees of future performance and actual results or\ndevelopments may differ materially from those described in forward-looking\nstatements. Statements include but are not limited to the resource conversion\nand expansion potential at the Dome mine site the anticipated results and\ntiming associated with the updated exploration program at the Porcupine\nComplex; the ability to expand mineralization at the Dome mine to the north,\nsouth and west; the ability to make new discoveries across the broader\nproperty;  the ability to complete and the anticipated benefits associated\nwith the development of the drill programs; the timing associated with a new\nmineral resource estimate update planned in 2027 and the anticipated benefits\nthereof; the ability to convert and extend mineral resources at the Dome mine;\nthe development of the Porcupine Operations and its attractive economics and\nsignificant exploration upside; construction decision and development, the\nability to double annual gold production, the results of the Technical Report\nand the anticipated capital and operating costs, sustaining costs, net present\nvalue, internal rate of return, the method of mining for the the Porcupine\nOperations, payback period, process capacity, average annual metal production,\naverage process recoveries, concession renewal, permitting of the assets,\nanticipated mining and processing methods, including but not limited to\npotential mill expansions, production schedule and metal production profile,\nanticipated construction period, anticipated mine life, expected recoveries\nand grades, anticipated production rates, infrastructure, social and\nenvironmental impact studies, the completion of key de-risking items,\nincluding the timing of receipt permits, availability of water and power,\navailability of labour, job creation and other local economic benefits, tax\nrates and commodity prices that would support development of the Project, and\nother statements that express management's expectations or estimates of future\nperformance, operational, geological or financial results Information\nconcerning mineral resource/reserve estimates and the economic analysis\nthereof contained in the results of the Technical Report are also\nforward-looking statements in that they reflect a prediction of the\nmineralization that would be encountered, and the results of mining, if a\nmineral deposit were developed and mined. Forward-looking statements are\nstatements that are not historical facts which address events, results,\noutcomes or developments that the Company expects to occur. Forward-looking\nstatements are based on the beliefs, estimates and opinions of the Company’s\nmanagement on the date the statements are made and they involve a number of\nrisks and uncertainties.\n\nFactors that could cause actual results to differ materially from those\ndescribed in forward-looking statements include the completion of the drill\nprograms and the results thereon, the ability to complete the required\ndrilling on a timely basis and the impact of the completion of such drill\nprograms on the ability for the Company to prepare an updated resource\nestimate in 2027; fluctuations in market prices, including metal prices,\ncontinued availability of capital and financing, and general economic, market\naccess restrictions or tariffs, changes in U.S. laws and policies regarding\nregulating international trade, including but not limited to  changes to or\nimplementation of tariffs, trade restrictions, or responsive measures of\nforeign and domestic governments, changes to cost and availability of goods\nand raw materials, along with supply, logistics and transportation\nconstraints, changes in general economic conditions including market\nvolatility due to uncertain trade policies and tariffs, the actual results of\ncurrent and future exploration activities; changes to current estimates of\nmineral reserves and mineral resources; conclusions of economic and geological\nevaluations; changes in project parameters as plans continue to be refined;\nthe speculative nature of mineral exploration and development; risks in\nobtaining and maintaining necessary licenses, permits and authorizations for\nthe Company’s development stage and operating assets; the accuracy of\nhistorical and forward-looking operational and financial information estimates\nprovided by Newmont; the Company’s ability to integrate the Porcupine\nOperations; statements regarding the Porcupine Operations, including the\nresults of technical studies and the anticipated capital and operating costs,\nsustaining costs , internal rate of return, concession or claim renewal, the\nprojected mine life and other attributes of the Porcupine Operations,\nincluding net present value, the timing of any environmental assessment\nprocesses, reclamation obligations; operations may be exposed to new diseases,\nepidemics and pandemics, including any ongoing or future effects of COVID-19\n(and any related ongoing or future regulatory or government responses) and its\nimpact on the broader market and the trading price of the Company’s shares;\nprovincial and federal orders or mandates (including with respect to mining\noperations generally or auxiliary businesses or services required for\noperations) in Canada and Mexico, all of which may affect many aspects of the\nCompany's operations including the ability to transport personnel to and from\nsite, contractor and supply availability and the ability to sell or deliver\nmined silver; changes in national and local government legislation, controls\nor regulations; failure to comply with environmental and health and safety\nlaws and regulations; labour and contractor availability (and being able to\nsecure the same on favourable terms); disruptions in the maintenance or\nprovision of required infrastructure and information technology systems;\nfluctuations in the price of gold or certain other commodities such as, diesel\nfuel, natural gas, and electricity; operating or technical difficulties in\nconnection with mining or development activities, including geotechnical\nchallenges and changes to production estimates (which assume accuracy of\nprojected ore grade, mining rates, recovery timing and recovery rate estimates\nand may be impacted by unscheduled maintenance); changes in foreign exchange\nrates (particularly the Canadian dollar, U.S. dollar and Mexican peso); the\nimpact of inflation; geopolitical conflicts; employee and community relations;\nthe impact of litigation and administrative proceedings (including but not\nlimited to mining reform laws in Mexico) and any interim or final court,\narbitral and/or administrative decisions; disruptions affecting operations;\navailability of and increased costs associated with mining inputs and labour;\ndelays in construction decisions and any development of the Porcupine\nOperations; changes with respect to the intended method of mining and\nprocessing ore from the Porcupine Operations; inherent risks and hazards\nassociated with mining and mineral processing including environmental hazards,\nindustrial accidents, unusual or unexpected formations, pressures and\ncave-ins; the risk that the Company’s mines may not perform as planned;\nuncertainty with the Company's ability to secure additional capital to execute\nits business plans; contests over title to properties; expropriation or\nnationalization of property; political or economic developments in Canada and\nMexico and other jurisdictions in which the Company may carry on business in\nthe future; increased costs and risks related to the potential impact of\nclimate change; the costs and timing of exploration, construction and\ndevelopment of new deposits; risk of loss due to sabotage, protests and other\ncivil disturbances; the impact of global liquidity and credit availability and\nthe values of assets and liabilities based on projected future cash flows;\nrisks arising from holding derivative instruments; and business opportunities\nthat may be pursued by the Company. There can be no assurances that such\nstatements will prove accurate and, therefore, readers are advised to rely on\ntheir own evaluation of such uncertainties. Discovery does not assume any\nobligation to update any forward-looking statements except as required under\napplicable laws. The risks and uncertainties that may affect forward-looking\nstatements, or the material factors or assumptions used to develop such\nforward-looking information, are described under the heading \"Risk Factors\" in\nthe Company’s Annual Information Form dated February 19, 2026, and the\nCompany’s technical report (the “Technical Report”) entitled\n“Porcupine Complex, Ontario, Canada NI 43-101 Report on Preliminary\nAssessment” with an effective date of January 13, 2025, which is available\nunder the Company’s issuer profile on SEDAR+ at www.sedarplus.ca.\n\nPreliminary Economic Assessment Disclaimer: The Technical Report includes the\nresults of a preliminary economic assessment which is preliminary in nature.\nIt includes inferred mineral resources that are considered too speculative\ngeologically to have the economic considerations applied to them that would\nenable them to be categorized as mineral reserves and there is no certainty\nthat the preliminary economic assessment will be realized. Readers should\nrefer to the full text of the Technical Report related to Mineral Resources\nand Mineral Reserves estimates as filed on www.sedarplus.ca.\n\nA photo accompanying this announcement is available at\nhttps://www.globenewswire.com/NewsRoom/AttachmentNg/5575ee1f-ff72-46dc-aa4d-b009afb79837\n\n(https://www.globenewswire.com/NewsRoom/AttachmentNg/6a44694b-2cae-4dea-b555-084425160cb6)\nFigure 1 \n(https://www.globenewswire.com/NewsRoom/AttachmentNg/5575ee1f-ff72-46dc-aa4d-b009afb79837/en)\nDome Results\n\n\nGlobeNewswire, Inc. 2026","article_body_html":"","raw_payload":{"data":{"id":"nGNX5XnSqy-20261020","title":"Drilling at Dome Continues to Confirm Large-Scale, Open-Pit Potential; New, High-Grade Intersections Extend Mineralization 600 Metres to South","author":"Globe Newswire","ticker":"DSV","created":"2026-10-20T21:15:00.239Z","tickers":["DSV"],"exchange":"TSX","article_body":"Drilling on south side of resource pit extends mineralization by 600 metres\n* 3.41 gpt over 17.3m; 1.42 gpt over 17.0m;\n* 1.71 gpt over 19.1m, 11.41 gpt over 1.7m and 1.15 gpt over 12.9m;\n* 3.56 gpt over 21.0m and, 2.29 gpt over 4.0m;  \n* 2310.00 gpt over 1.0m, 2.09 gpt over 9.3m, 6.52 gpt over 4.2m and 2.01 gpt\nover 14.0m;\n* 195.00 gpt over 0.6m, 1.98 gpt over 18.7m; 11.31 gpt over 6.7m including\n214.00 gpt over 0.3m;\n* 46.20 gpt over 1.0m, and 0.81 gpt over 14.6m;\n* 6.80 gpt over 5.0m and 3.75 gpt over 5.0m;\n* 56.50 gpt over 1.1m and 3.93 gpt over 5.0m;\n* 1.48 gpt over 22.0m, and 1.75 gpt over 14.9m;\n* 11.63 gpt over 9.0m, including 93.40 gpt over 1.0m, 1.40 gpt over 7.5m.\nDrilling¹ on north side of resource pit continues to confirm and identify new\nmineralization within and to north of current resource²\n* 331.0 gpt over 0.3m, 19.56 gpt over 6.1m including 279.00 gpt over 0.4m,\n51.60 gpt over 2.0m;\n* 72.54 gpt over 5.9m including 1400.00 gpt over 0.3m; 2.19gpt over 13.5m;\n* 5.28 gpt over 11.0m including 83.10 gpt over 0.3m; 2.42 gpt over 10.9m;\n* 17.92 gpt over 3.7m including 71.20 gpt over 0.8m; 5.48 gpt over 7.0m;\n* 3.48 gpt over 9.1m including 28.20 gpt over 0.8m,1.48 gpt over 9.0m, 3.87\ngpt over 7.0m;\n* 2.34 gpt over 14.3m and 51.87 gpt over 1.8m;\n* 140.28 gpt over 2.6m, including 1170.00 gpt over 0.3m.\nNew resource estimate remains on track for Q1 2027\n1. All assays are reported uncut.\n2. Intervals are reported using core lengths only as true widths are not known\nat this time. \n3. In this news release, “gpt” refers to grams per tonne, and “m”\nrefer to metres.\nTORONTO, Oct. 20, 2026 (GLOBE NEWSWIRE) -- Discovery Mining Ltd. (TSX: DSV,\nOTCQX: DSVSF) (“Discovery” or the “Company”) today reported results\nfrom ongoing exploration at the Company’s advanced stage growth project at\nDome. The results, which include assays from a combined total of 36 holes(1)\n(16,365.4 m) continued to expand mineralization, indicated excellent\ncorrelation of widths and grades to previous drilling and clearly demonstrated\nthe upside that exists at the project.\n\nTony Makuch, Discovery’s President, CEO and Chairman, commented: “The\nhigh-grade intersections reported today further demonstrate the tremendous\npotential that exists for Dome Mine to resume operations as a large-scale,\nlong-life open-pit mining operation. The results identify new areas of\nmineralization that support our view that we can expand the open pit and\nsignificantly grow our resource base. Particularly encouraging were high-grade\nintersections that extend the mineralization 600 m to the south of the current\nresource pit. The mineralized zones identified follow the trend of the Dome\nFault and remain open to the west along the fault that extends through the\nneighbouring Paymaster property. Also encouraging were a number of shallow\nintersections in new zones identified to the north of the main mineralization.\n\n“As with recent exploration success at our Pamour mine, the drill results at\nDome clearly demonstrate the potential for a much larger open-pit operation\nthan was previously envisioned, with the opportunity existing for further\nexpansion of mineralization to the north, south and west. Based on the upside\nthat exists, we are now re-evaluating our future plans for the Dome Mill, and\nwill be considering the establishment of a large, central milling facility at\nthe Kidd Metallurgical site to provide processing for all of our operations.\n\n“Work to update the current 11.0 million ounce inferred mineral resource at\nDome is progressing well and remains on track for release as part of a\ntechnical report for our Porcupine operations early in 2027.”\n\nThe 36 holes reported today from the Dome project were from two main areas,\nincluding the north side of the current mineral resource pit and the south\nside of the pit near the former Preston and New York Porcupine\nproperties (Figure 1).\n\nDome is among the largest historic gold producers in Canada, with total\nproduction of 16.7 million ounces from both underground and open pit sources\nbetween 1910 and 2017.\n\nGeologically, the mine is located on the south limb of the Porcupine Syncline\nand is just north of the Destor Porcupine Fault. Mineralization in the current\nopen-pit resource extends from surface to a maximum depth of approximately 730\nm, with additional mineralization in multiple zones extending to a further\ndepth of approximately 1,600 m.\n\nThe current mineral resource at Dome includes 222.3 million tonnes with an\naverage grade of 1.49 gpt for a total of 11.0 million ounces in the Inferred\nresource category. The resource assumes a large-scale, open-pit concept to\nexpand the historic pit along strike and to depth.\n\nA key objective of the 2026 drilling program is the completion of a new\nmineral resource estimate, to be released in early 2027. The 2026 work program\nalso includes further evaluations of data and mineralization models to upgrade\nportions of the resource to the Indicated resource category, and to evaluate\nthe potential for future underground mining at Dome.\n\nDrilling on the south side of the resource pit included 22 holes (7,188.0 m)\nto evaluate mineralization between the south edge and up to 600 m southwards\nalong the projected trend of the Dome Fault and contained multiple holes with\nexcellent grades and widths. Significant results include: 3.41 gpt over 17.3m\nand 1.42 gpt over 17.0m in hole DOM26-046; 1.71 gpt over 19.1m, 11.41 gpt over\n1.7m, 1.15 gpt over 12.9m in hole DOM26-047; 3.56 gpt over 21.0m and 2.29 gpt\nover 4.0m in hole DOM26-044, 2.53 gpt over 6.0m, 2310.00 gpt over 1.0m, 2.09\ngpt over 9.3m, 3.16 gpt over 3.7m, 6.52 gpt over 4.2m and 2.01 gpt over 14.0m\nin hole DOM26-048 and; 195.00 gpt over 0.6m, 46.20 gpt over 1.0m, 0.81 gpt\nover 14.6m, 1.98 gpt over 18.7m, and 11.31 gpt over 6.7m, including 214.00 gpt\nover 0.3m in hole DOM26-071; 6.80 gpt over 5.0m and 3.75 gpt over 5.0m in hole\nDOM26-042, which targeted between 100 and 300 meters south of the current\nresource pit, as well as 56.50 gpt over 1.1m and 3.93 gpt over 5.0m, in hole\nDOM26-049; 1.48 gpt over 22.0m, and 1.75 gpt over 14.9m, in hole DOM26-061A\nand; 1.40 gpt over 7.5m, 4.44 gpt over 3.0m, and 11.63 gpt over 9.0m,\nincluding 93.40 gpt over 1.0m in hole DOM26-063, which were drilled between\n400 to 600 meters to the south (Table 1). Based on current interpretations,\nthe mineralized zones identified in the new drilling follow the trend of the\nDome Fault and remain open to the west along the projected trace of the fault\nfor a minimum 1.5 kms before the fault passes through the Paymaster #2 and #3\nshaft area and converges with the Destor Porcupine Fault Zone. The Paymaster\n#2 and #3 shaft area is located on the Paymaster joint venture property which\nwas recently acquired along with the Fuller Block from McEwen Mining Inc (see\npress release October 9, 2026).\n\nDrilling on the north side of the resource pit included 14 holes (9,177.4 m)\nand was also very successful with multiple holes obtaining significant\nintersections both within and on the north side of the current resource.\nEspecially encouraging is the fact that several of the intersections were at\nshallow depths and in new structures north of the main body of mineralization.\nSignificant results include 331.0 gpt over 0.3m, 19.56 gpt over 6.1m including\n279.00 gpt over 0.4m and 51.60 gpt over 2.0m including 102.00 gpt over 1.0m in\nhole DOM26-019, 72.54 gpt over 5.9m including 1400.00 gpt over 0.3m, and 2.19\ngpt over 13.5m in hole DOM26-052, 5.28 gpt over 11.0m including 83.10 gpt over\n0.3m, 27.10 gpt over 0.5m, 5.48 gpt over 2.2m and 2.42 gpt over 10.9m in hole\nDOM26-054, 27.20 gpt over, 0.4m, 17.92 gpt over 3.7m including 71.20 gpt over\n0.8m, and 5.48 gpt over 7.0m in hole DOM26-051, 9.90 gpt over 1.6m, 3.48 gpt\nover 9.1m including 28.20 gpt over 0.8m, 1.81 gpt over 9.0m, and 3.87 gpt over\n7.0m in hole DOM26-056, 2.34 gpt over 14.3m and 51.87 gpt over 1.8m in hole\nDOM26-053, and 140.28 gpt over 2.6m including 1170.00 gpt over 0.3m in hole\nDOM26-058 (Table 1).\n\nDrilling at the project is continuing with two drills, one located in the\nsouthwest portion of the historic open pit and the other on the north side.\nWork is also continuing to evaluate additional drill targets to the north,\nsouth and west sides of the pit. Considering results and progress to date, the\nproject remains on track for the planned resource update early in 2027. \n\nTable 1. Intercepts from New Drilling at Dome Project(1,2)(, 3) \n\n ZONE        Hole ID     Total Hole Depth  From   To     Core length  Au      Notes   \n             (m)                           (m)           (m)          (g/t)   \n North Area  DOM26-017   792.0             63.7   70.2   6.5          0.59    In Pit  \n             634.0                         635.0         1.0          9.67    In Pit  \n             DOM26-018A  614.0             654.2  656.5  2.3          6.89    Out     \n             778.5                         782.9  4.4    2.16         Out     \n             DOM26-012   585.0             347.0  349.0  2.0          5.13    Out     \n             379.0                         380.0  1.0    22.00        Out     \n             470.0                         474.0  4.0    1.39         In Pit  \n             493.3                         506.5  13.2   1.61         In Pit  \n             DOM26-013   459.5             328.3  337.0  8.7          3.12    Out     \n             DOM26-014   591.0             108.8  123.8  15.0         0.91    Out     \n             502.0                         503.0  1.0    12.65        In Pit  \n             DOM26-019   614.0             385.7  386.0  0.3          331.00  Out     \n             507.6                         513.7  6.1    19.56        Out     \n             incl                                                     \n             507.6                         508.0  0.4    279.00       \n             610.0                         612.0  2.0    51.60        In Pit  \n             incl                                                     \n             610.0                         611.0  1.0    102.00       \n             DOM26-052   650.0             540.0  541.0  1.0          12.30   Out     \n             558.1                         564.0  5.9    72.54        Out     \n             incl                                                     \n             561.0                         561.3  0.3    1400.00      \n             635.2                         648.7  13.5   2.19         In Pit  \n             DOM26-054   781.4             340.0  351.0  11.0         5.28    Out     \n             incl                                                     \n             347.1                         347.4  0.3    83.10        \n             511.9                         512.4  0.5    27.10        Out     \n             759.0                         761.2  2.2    5.48         Out     \n             768.0                         778.9  10.9   2.42         Out     \n             DOM26-051   516.0             106.1  106.5  0.4          27.20   Out     \n             431.3                         435.0  3.7    17.92        Out     \n             incl                                                     \n             432.1                         432.9  0.8    71.20        \n             488.0                         495.0  7.0    5.48         Out     \n             501.5                         503.8  2.3    5.39         Out     \n             DOM26-056   647.0             128.6  130.2  1.6          9.90    Out     \n             289                           298.1  9.1    3.48         Out     \n             incl                                                     \n             289.5                         290.3  0.8    28.20        \n             555.0                         564.0  9.0    1.81         In Pit  \n             590.0                         597.0  7.0    3.87         In Pit  \n             DOM26-053   805.0             739.9  754.2  14.3         2.34    Out     \n             802.2                         804.0  1.8    51.87        Out     \n             DOM26-058   663.2             658.0  660.6  2.6          140.28  Out     \n             incl                                                     \n             659.3                         659.6  0.3    1170.00      \n South Area  DOM26-046   240.0             45.7   63.0   17.3         3.41    Out     \n             100.9                         117.9         17.0         1.42    Out     \n             DOM26-047   300.0             69.9   89.0   19.1         1.71    Out     \n             104.8                         106.5  1.7    11.41        Out     \n             121.0                         133.9  12.9   1.15         Out     \n             175.5                         179.8  4.3    1.26         Out     \n             DOM26-044   240.0             35.0   56.0   21.0         3.56    Out     \n             76.0                          80.0   4.0    2.29         Out     \n             DOM26-048   300.0             139.0  145.0  6.0          2.53    Out     \n             149.0                         153.0  4.0    1.73         Out     \n             153.0                         154.0  1.0    2310.00      \n             154.0                         163.3  9.3    2.09         \n             196.3                         200.0  3.7    3.16         Out     \n             206.8                         211.0  4.2    6.52         Out     \n             224.0                         238.0  14.0   2.01         Out     \n             DOM26-049   420.0             163.0  164.1  1.1          56.50   Out     \n             171.0                         176.0  5.0    3.93         Out     \n             DOM26-039   300.0             216.0  218.0  2.0          3.08    Out     \n             254.0                         257.0  3.0    1.25         Out     \n             DOM26-041   300.0             45.9   50.5   4.6          1.41    Out     \n             55.0                          58.0   3.0    3.67         Out     \n             DOM26-042   240.0             77.0   82.0   5.0          6.80    Out     \n             88.0                          93.0   5.0    3.75         Out     \n             DOM26-060   402.0             168.0  182.1  14.1         0.69    Out     \n             DOM26-061A  402.0             174.3  196.3  22.0         1.48    Out     \n             284.0                         298.9  14.9   1.75         Out     \n             DOM26-062   402.0             158.1  166.0  7.9          1.93    Out     \n             DOM26-063   402.0             129.5  137.0  7.5          1.40    Out     \n             175.2                         178.2  3.0    4.44         Out     \n             209.0                         218.0  9.0    11.63        Out     \n             incl                                                     \n             213.0                         214.0  1.0    93.40        \n             DOM26-065   402.0             44.2   45.0   0.8          35.10   Out     \n             DOM26-067   336.0             170.2  171.0  0.8          27.70   Out     \n             DOM26-069   366.0             107.0  113.0  6.0          1.23    Out     \n             349.9                         357.8  7.9    0.59         Out     \n             DOM26-071   336.0             33.0   33.6   0.6          195.00  Out     \n             40.0                          41.0   1.0    46.20        Out     \n             85.0                          99.6   14.6   0.81         Out     \n             145.8                         164.5  18.7   1.98         Out     \n             181.3                         188.0  6.7    11.31        Out     \n             incl                                                             \n                                                  0.3    214.00       Out     \n                                                                                      \n1. All assays are reported uncut.\n2. Intervals are reported using core lengths only as true widths are not known\nat this time. \n3. Holes DOM26-055, 057, 068, 064, 040, 043, 045, 066 are not included in the\ntable above as they have lower grade values.\nLink to 3D Visuals: https://vrify.com/decks/24534\n\nFigure 1. Dome Results\n\n\n\nQUALIFIED PERSONS\nDiscovery’s exploration programs at the Porcupine Operations are conducted\nunder the supervision of Eric Kallio, P.Geo., Executive Vice President,\nExploration and Growth, Kara Byrnes, P.Geo, Vice President, Exploration and\nGeology – Porcupine and Steve Harding, P.Geo., Senior Geologist –\nExploration Growth Projects. Mr. Kallio, Ms. Byrnes and Mr. Harding are\n“qualified persons” for the purpose of National Instrument 43-101,\nStandards of Disclosure for Mineral Projects, of the Canadian Securities\nAdministrators, and have reviewed and approved the scientific and technical\ninformation in this news release.\n\nReaders are referred to the mineral resource estimate as set out in the\nCompany’s current technical report entitled “Porcupine Complex, Ontario,\nCanada NI 43-101 Report on Preliminary Assessment” with an effective date of\nJanuary 13, 2025 (the “Technical Report”), which is available under the\nCompany’s issuer profile on SEDAR+ at www.sedarplus.ca. Statements\nconcerning mineral resource estimates may also be deemed to constitute forward\nlooking information to the extent that they involve estimates of the\nmineralization that will be encountered if the property is developed. The\nTechnical Report includes the results of a preliminary economic assessment\nwhich is preliminary in nature. It includes inferred mineral resources that\nare considered too speculative geologically to have the economic\nconsiderations applied to them that would enable them to be categorized as\nmineral reserves and there is no certainty that the preliminary economic\nassessment will be realized. \n\nQA/QC CONTROLS\nThe Company follows a quality assurance and control (“QA/QC”) program to\nensure that sampling and analysis of all exploration work is conducted in\naccordance with best practices. \n\nCore is logged and sampled in a secure facility at the Dome mine site and\nunder supervision of Qualified Geologists.  The NQ sized drill core is\npredominantly sawn in half with one half of the core prepared for shipment,\nthe other half of core retained for future assay verification. CRM standards,\ncoarse blank material and duplicates are inserted every 20 samples. Core\nsamples are picked up by Activation Laboratories at the Dome Mine core\nfacility and tracked via a chain of custody from site to the lab for\npreparation and assaying. \n\nDiscovery utilizes the accredited external lab Activation Laboratories to\nmanage its core analysis. ActLabs is certified by the Standards Council of\nCanada which conforms with ASB-RG Mineral Analysis Laboratory for the\nAccreditation of Mineral Analysis Testing Laboratories and CAN-P-4E ISO/IEC\n17025: General Requirements for the Competence of Testing and Calibration\nLaboratories. \n\nSample preparation includes crushing drill core up to 80% passing 2 mm, riffle\nsplitting 500 grams and pulverizing to 95% passing 105 µm followed by both\nscheduled and specifically requested silica sand cleaning. Gold Analysis\ninvolves Fire Assay – Atomic Absorption technique from a 50-gram pulp sample\nwith grade ranges between 5 to 10,000 ppb. Samples greater than 10,000 ppb are\nanalyzed with a gravimetric finish. Selected high grade samples are also\nanalyzed using the screen metallics procedure.\n\nABOUT DISCOVERY\nDiscovery Mining Ltd. is a growing precious metals company that is creating\nvalue for stakeholders through exposure to gold, silver and other critical\nminerals. Discovery is advancing plans to more than double annual gold\nproduction through investment in the Company’s Porcupine assets, which\ninclude multiple operations, attractive growth projects and significant\nexploration upside in one of the world’s most renowned gold camps in and\nnear Timmins, Ontario. The acquisition of the Kidd Operations in June 2026\nfurther increased Discovery’s land position within the camp, provided\nvaluable infrastructure that will support the Company’s growing gold\nbusiness, and added critical minerals to the Company’s current production\nprofile. Discovery’s silver exposure comes mainly from the 100%-owned\nCordero project, one of the world’s largest undeveloped silver deposits,\nwhich is located close to infrastructure in a prolific mining belt in\nChihuahua State, Mexico.\n\nOn Behalf of the Board of Directors,\n\nTony Makuch, P. Eng\nPresident, CEO & Chairman\n\nFor further information contact:\nMark Utting, CFA\nEVP, Investor Relations and Communications\nPhone: 416-806-6298\nEmail: mark.utting@dsvmining.com \nWebsite: www.dsvmining.com \n\nCAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION\nThis news release may include forward-looking statements that are subject to\ninherent risks and uncertainties. All statements within this news release,\nother than statements of historical fact, are to be considered forward\nlooking. Although Discovery believes the expectations expressed in such\nforward-looking statements are based on reasonable assumptions, such\nstatements are not guarantees of future performance and actual results or\ndevelopments may differ materially from those described in forward-looking\nstatements. Statements include but are not limited to the resource conversion\nand expansion potential at the Dome mine site the anticipated results and\ntiming associated with the updated exploration program at the Porcupine\nComplex; the ability to expand mineralization at the Dome mine to the north,\nsouth and west; the ability to make new discoveries across the broader\nproperty;  the ability to complete and the anticipated benefits associated\nwith the development of the drill programs; the timing associated with a new\nmineral resource estimate update planned in 2027 and the anticipated benefits\nthereof; the ability to convert and extend mineral resources at the Dome mine;\nthe development of the Porcupine Operations and its attractive economics and\nsignificant exploration upside; construction decision and development, the\nability to double annual gold production, the results of the Technical Report\nand the anticipated capital and operating costs, sustaining costs, net present\nvalue, internal rate of return, the method of mining for the the Porcupine\nOperations, payback period, process capacity, average annual metal production,\naverage process recoveries, concession renewal, permitting of the assets,\nanticipated mining and processing methods, including but not limited to\npotential mill expansions, production schedule and metal production profile,\nanticipated construction period, anticipated mine life, expected recoveries\nand grades, anticipated production rates, infrastructure, social and\nenvironmental impact studies, the completion of key de-risking items,\nincluding the timing of receipt permits, availability of water and power,\navailability of labour, job creation and other local economic benefits, tax\nrates and commodity prices that would support development of the Project, and\nother statements that express management's expectations or estimates of future\nperformance, operational, geological or financial results Information\nconcerning mineral resource/reserve estimates and the economic analysis\nthereof contained in the results of the Technical Report are also\nforward-looking statements in that they reflect a prediction of the\nmineralization that would be encountered, and the results of mining, if a\nmineral deposit were developed and mined. Forward-looking statements are\nstatements that are not historical facts which address events, results,\noutcomes or developments that the Company expects to occur. Forward-looking\nstatements are based on the beliefs, estimates and opinions of the Company’s\nmanagement on the date the statements are made and they involve a number of\nrisks and uncertainties.\n\nFactors that could cause actual results to differ materially from those\ndescribed in forward-looking statements include the completion of the drill\nprograms and the results thereon, the ability to complete the required\ndrilling on a timely basis and the impact of the completion of such drill\nprograms on the ability for the Company to prepare an updated resource\nestimate in 2027; fluctuations in market prices, including metal prices,\ncontinued availability of capital and financing, and general economic, market\naccess restrictions or tariffs, changes in U.S. laws and policies regarding\nregulating international trade, including but not limited to  changes to or\nimplementation of tariffs, trade restrictions, or responsive measures of\nforeign and domestic governments, changes to cost and availability of goods\nand raw materials, along with supply, logistics and transportation\nconstraints, changes in general economic conditions including market\nvolatility due to uncertain trade policies and tariffs, the actual results of\ncurrent and future exploration activities; changes to current estimates of\nmineral reserves and mineral resources; conclusions of economic and geological\nevaluations; changes in project parameters as plans continue to be refined;\nthe speculative nature of mineral exploration and development; risks in\nobtaining and maintaining necessary licenses, permits and authorizations for\nthe Company’s development stage and operating assets; the accuracy of\nhistorical and forward-looking operational and financial information estimates\nprovided by Newmont; the Company’s ability to integrate the Porcupine\nOperations; statements regarding the Porcupine Operations, including the\nresults of technical studies and the anticipated capital and operating costs,\nsustaining costs , internal rate of return, concession or claim renewal, the\nprojected mine life and other attributes of the Porcupine Operations,\nincluding net present value, the timing of any environmental assessment\nprocesses, reclamation obligations; operations may be exposed to new diseases,\nepidemics and pandemics, including any ongoing or future effects of COVID-19\n(and any related ongoing or future regulatory or government responses) and its\nimpact on the broader market and the trading price of the Company’s shares;\nprovincial and federal orders or mandates (including with respect to mining\noperations generally or auxiliary businesses or services required for\noperations) in Canada and Mexico, all of which may affect many aspects of the\nCompany's operations including the ability to transport personnel to and from\nsite, contractor and supply availability and the ability to sell or deliver\nmined silver; changes in national and local government legislation, controls\nor regulations; failure to comply with environmental and health and safety\nlaws and regulations; labour and contractor availability (and being able to\nsecure the same on favourable terms); disruptions in the maintenance or\nprovision of required infrastructure and information technology systems;\nfluctuations in the price of gold or certain other commodities such as, diesel\nfuel, natural gas, and electricity; operating or technical difficulties in\nconnection with mining or development activities, including geotechnical\nchallenges and changes to production estimates (which assume accuracy of\nprojected ore grade, mining rates, recovery timing and recovery rate estimates\nand may be impacted by unscheduled maintenance); changes in foreign exchange\nrates (particularly the Canadian dollar, U.S. dollar and Mexican peso); the\nimpact of inflation; geopolitical conflicts; employee and community relations;\nthe impact of litigation and administrative proceedings (including but not\nlimited to mining reform laws in Mexico) and any interim or final court,\narbitral and/or administrative decisions; disruptions affecting operations;\navailability of and increased costs associated with mining inputs and labour;\ndelays in construction decisions and any development of the Porcupine\nOperations; changes with respect to the intended method of mining and\nprocessing ore from the Porcupine Operations; inherent risks and hazards\nassociated with mining and mineral processing including environmental hazards,\nindustrial accidents, unusual or unexpected formations, pressures and\ncave-ins; the risk that the Company’s mines may not perform as planned;\nuncertainty with the Company's ability to secure additional capital to execute\nits business plans; contests over title to properties; expropriation or\nnationalization of property; political or economic developments in Canada and\nMexico and other jurisdictions in which the Company may carry on business in\nthe future; increased costs and risks related to the potential impact of\nclimate change; the costs and timing of exploration, construction and\ndevelopment of new deposits; risk of loss due to sabotage, protests and other\ncivil disturbances; the impact of global liquidity and credit availability and\nthe values of assets and liabilities based on projected future cash flows;\nrisks arising from holding derivative instruments; and business opportunities\nthat may be pursued by the Company. There can be no assurances that such\nstatements will prove accurate and, therefore, readers are advised to rely on\ntheir own evaluation of such uncertainties. Discovery does not assume any\nobligation to update any forward-looking statements except as required under\napplicable laws. The risks and uncertainties that may affect forward-looking\nstatements, or the material factors or assumptions used to develop such\nforward-looking information, are described under the heading \"Risk Factors\" in\nthe Company’s Annual Information Form dated February 19, 2026, and the\nCompany’s technical report (the “Technical Report”) entitled\n“Porcupine Complex, Ontario, Canada NI 43-101 Report on Preliminary\nAssessment” with an effective date of January 13, 2025, which is available\nunder the Company’s issuer profile on SEDAR+ at www.sedarplus.ca.\n\nPreliminary Economic Assessment Disclaimer: The Technical Report includes the\nresults of a preliminary economic assessment which is preliminary in nature.\nIt includes inferred mineral resources that are considered too speculative\ngeologically to have the economic considerations applied to them that would\nenable them to be categorized as mineral reserves and there is no certainty\nthat the preliminary economic assessment will be realized. Readers should\nrefer to the full text of the Technical Report related to Mineral Resources\nand Mineral Reserves estimates as filed on www.sedarplus.ca.\n\nA photo accompanying this announcement is available at\nhttps://www.globenewswire.com/NewsRoom/AttachmentNg/5575ee1f-ff72-46dc-aa4d-b009afb79837\n\n(https://www.globenewswire.com/NewsRoom/AttachmentNg/6a44694b-2cae-4dea-b555-084425160cb6)\nFigure 1 \n(https://www.globenewswire.com/NewsRoom/AttachmentNg/5575ee1f-ff72-46dc-aa4d-b009afb79837/en)\nDome Results\n\n\nGlobeNewswire, Inc. 2026"},"type":"article","timestamp":"2026-10-20T21:15:00.286130658Z","server_sent_at_ms":1792530900286},"received_at":"2026-10-20T21:15:00.374Z","source_url":null},"analysis":{"id":"162800","press_release_id":"174748","analysis_json":{"industry":{"label":"Gold","sector":"Materials"},"redFlags":["Intervals reported as core lengths; true widths not known","All assays reported uncut — bonanza-grade intercepts (up to 2,310 g/t) are narrow, included intervals","Current 11.0 Moz resource is entirely Inferred category and considered speculative"],"eventType":"operations_update","narrative":"Discovery Mining reported assays from 36 holes (16,365.4 m) at its Dome project, with drilling on the south side of the resource pit extending mineralization 600 metres along the Dome Fault trend.\n\nHighlights include broad high-grade intercepts such as 3.41 g/t over 17.3 m and 3.56 g/t over 21.0 m to the south, plus shallow new zones to the north including 72.54 g/t over 5.9 m with a 1,400 g/t spike. Zones remain open to the west toward the recently acquired Paymaster property.\n\nThe updated mineral resource estimate at Dome, currently 11.0 million inferred ounces at 1.49 g/t, remains on track for early 2027, and management is re-evaluating plans including a potential central mill at the Kidd Metallurgical site.","sentiment":"bullish","agentHooks":{"shouldPost":true,"suggestedAngle":"High-grade drilling extends Dome mineralization 600 m south and adds shallow northern zones, de-risking a potential resource expansion ahead of the Q1 2027 update."},"keyFigures":{"customDimensions":{"holes_reported":36,"best_intercepts":["2.34-3.56 gpt over 14-21m","1400.00 gpt over 0.3m","2310.00 gpt over 1.0m"],"inferred_resource":"11.0 million ounces Au at 1.49 gpt over 222.3 million tonnes","historic_production":"16.7 million ounces (1910-2017)","resource_update_timing":"Q1 2027","aggregate_metres_drilled":"16,365.4 m","mineralization_extension_south":"600 metres"}},"quotedText":"The high-grade intersections reported today further demonstrate the tremendous potential that exists for Dome Mine to resume operations as a large-scale, long-life open-pit mining operation.","namedEntities":{"people":[{"name":"Tony Makuch","role":"President, CEO & Chairman"},{"name":"Eric Kallio","role":"Executive Vice President, Exploration and Growth (Qualified Person)"},{"name":"Kara Byrnes","role":"Vice President, Exploration and Geology - Porcupine"},{"name":"Steve Harding","role":"Senior Geologist - Exploration Growth Projects"},{"name":"Mark Utting","role":"EVP, Investor Relations and Communications"}],"products":["Dome Mine","Pamour mine","Porcupine Complex","Cordero project","Kidd Operations","Kidd Metallurgical site","Paymaster property","Fuller Block"],"companies":[{"name":"Discovery Mining Ltd.","ticker":"DSV","relationship":"filer"},{"name":"McEwen Mining Inc","relationship":"vendor of Paymaster/Fuller Block properties"},{"name":"Newmont","relationship":"source of historical operational information"},{"name":"Activation Laboratories","relationship":"assay laboratory"}],"dollarAmounts":[]},"materialImpact":{"score":3,"reasoning":"Exploration results from 36 holes materially extend high-grade gold mineralization 600 m south of the Dome pit and add shallow new zones to the north, supporting open-pit expansion ahead of a Q1 2027 resource update. Positive but not yet a resource or economic milestone."},"tickerRelevance":{"others":[{"ticker":"MUX","relevance":"mentioned (vendor of recently acquired Paymaster/Fuller Block properties)"}],"primary":"DSV"},"globalImportance":30,"audienceRelevance":25,"eventTypeSecondary":[],"importanceComponents":{"tickerTier":"mid-cap gold producer","eventGravity":"positive drill results with resource expansion potential","milestoneProximity":"resource update Q1 2027 catalyst"}},"event_type":"operations_update","event_type_secondary":null,"sentiment":"bullish","material_impact_score":3,"narrative":"Discovery Mining reported assays from 36 holes (16,365.4 m) at its Dome project, with drilling on the south side of the resource pit extending mineralization 600 metres along the Dome Fault trend.\n\nHighlights include broad high-grade intercepts such as 3.41 g/t over 17.3 m and 3.56 g/t over 21.0 m to the south, plus shallow new zones to the north including 72.54 g/t over 5.9 m with a 1,400 g/t spike. Zones remain open to the west toward the recently acquired Paymaster property.\n\nThe updated mineral resource estimate at Dome, currently 11.0 million inferred ounces at 1.49 g/t, remains on track for early 2027, and management is re-evaluating plans including a potential central mill at the Kidd Metallurgical site.","key_figures":{"customDimensions":{"holes_reported":36,"best_intercepts":["2.34-3.56 gpt over 14-21m","1400.00 gpt over 0.3m","2310.00 gpt over 1.0m"],"inferred_resource":"11.0 million ounces Au at 1.49 gpt over 222.3 million tonnes","historic_production":"16.7 million ounces (1910-2017)","resource_update_timing":"Q1 2027","aggregate_metres_drilled":"16,365.4 m","mineralization_extension_south":"600 metres"}},"named_entities":{"people":[{"name":"Tony Makuch","role":"President, CEO & Chairman"},{"name":"Eric Kallio","role":"Executive Vice President, Exploration and Growth (Qualified Person)"},{"name":"Kara Byrnes","role":"Vice President, Exploration and Geology - Porcupine"},{"name":"Steve Harding","role":"Senior Geologist - Exploration Growth Projects"},{"name":"Mark Utting","role":"EVP, Investor Relations and Communications"}],"products":["Dome Mine","Pamour mine","Porcupine Complex","Cordero project","Kidd Operations","Kidd Metallurgical site","Paymaster property","Fuller Block"],"companies":[{"name":"Discovery Mining Ltd.","ticker":"DSV","relationship":"filer"},{"name":"McEwen Mining Inc","relationship":"vendor of Paymaster/Fuller Block properties"},{"name":"Newmont","relationship":"source of historical operational information"},{"name":"Activation Laboratories","relationship":"assay laboratory"}],"dollarAmounts":[]},"model_name":"glm-5.3-flashx","prompt_hash":"sha256:5c812bd9e28b810d","schema_hash":"sha256:05005c02d9cffac9","created_at":"2026-10-20T21:15:07.656Z","global_importance":30,"audience_relevance":25,"importance_components":{"tickerTier":"mid-cap gold producer","eventGravity":"positive drill results with resource expansion potential","milestoneProximity":"resource update Q1 2027 catalyst"}},"durationMs":7262,"modelName":"glm-5.3-flashx"}}