<div id="readability-page-1"><div>(TheNewswire)<ul><ul></ul></ul>VANCOUVER, BC, March 12,2026 – TheNewswire– Heritage Mining Ltd. (CSE: HML FRA: Y66)(“Heritage” or the “Company”) is pleased to announceconfirmation of more Visible Gold in Core in sampled Diamond Drillhole ML3840-003 from 72.40m within an approximate ~8m shear zone atthe Melba Mine Project (“Melba”) with its ongoing diamond drillprogram (Figure 1,2). Melba Project – VisibleGold:Figure 1: ML3840-003 at 72.40m, visible gold atmillimeter scale “The identification of the thirdinstance of visible gold within an ~8m shear zone at ~72m depth isvery encouraging. We have also extended the planned depth ofML3840-003 to ~150m due to favourable mineralization, assays pending.We look forward to updating our stakeholders on additional explorationresults in short order.” Commented PeterSchloo, President, CEO and Director of Heritage.Click Image To View Full SizeFigure 2: Visible Gold in ML3840-003 and Melba MineCross Section Visible Gold noted in core comprising of millimeterscale gold grains hosted in a sheared quartz veinlet within an ~ 8minterval that exhibits synformal folding and strongepidote-silica-chlorite alteration. The target zone is a shearedfelsic volcaniclastic and conglomerate contact.Melba, located ~22km northeast from Kirkland Lake and90km southeast of Timmins in Northeastern Ontario, Canada. The projectis comprised of ~3,886Ha. Melba lies along the Ross Fault, which is asplay off of the Porcupine-Destor Fault Zone and is associated withdevelopment stage and historic producing gold mines: McEwen Mine (GreyFox Mine, +1Moz Au) ~22km away, and the Ross Mine (+1Moz Au) ~16kmaway. Technical Program Heritage Mining adheres to a strict QA/QC protocol for handling, sampling, sample transportation and analyses. Chain-of-custody protocols are designed to ensure security of samples until their delivery at the laboratory. Drill core was boxed, covered and sealed at the drill rig site. Core boxes were labelled with the official drillhole name and identified in numerical sequence starting from beginning of the hole to the end. Wooden blocks with the corresponding down hole meterage were inserted after every drill run. Drill core boxes were transported by drilling contactors to the onsite logging facility where Company personnel would take over the core handling. Sampling, Sub-sampling, and Laboratory Analysis for Heritage Mining Melba Project. All drilling at the Melba project recovers NQ core. Drill core is systematically cut in half using a diamond saw. A qualified geologist examines the drill core, marking intervals for sampling and indicating the cutting line. Sample lengths are typically 1.0 metre, adjusted to a minimum length of 0.5 metre as necessary to respect lithological and/or mineralogical contacts and to isolate narrow veins or structures that may contain higher-grade mineralization. Technicians saw the core along the cutting lines determined by the geologist. One half of the core is retained as a witness sample, while the other half is submitted for analysis. Individual sample bags are securely sealed and placed into sealed rice bags, which are then clearly marked with their contents. Heritage Mining submits samples for gold determination by PhotonAssay to Paragon Geochemical - Timmins. (“Paragon”). Paragon operates under a commercial contract with Heritage Mining. Drill core samples are shipped to Paragon for sample preparation at their facilities in Timmins, Ontario. Paragon is an ISO/IEC 17025:2017 accredited laboratory for the PhotonAssay method in addition to a variety of diverse metal determination methods. Analytical Procedures The Paragon procedure for PhotonAssay involves lab applying preparation codes INV-SAM (sample logging via barcode), PREP-PKG (weigh, dry at 100C, crushing to 70% passing 2mm, riffle split ~500g into a PA jar and 250g for pulverization to 85% passing 75 micron) followed by analytical code Au-PA01 which is a non-destructive gold analysis method using high-energy X-rays with a gold detection range from 0.015 ppm to 350ppm. After gold assays are returned, Heritage then may choose to perform multi-element assays on selected samples based on the gold results first with Paragon. In these cases, an aliquot is taken from the previously prepared 250g split for analysis by 48MA-MS (4 acid digestion followed by multi-element ICP-MS analysis for a 48 element suite). ________________________________________ Quality Assurance/Quality Control (QA/QC). The drill program design, QA/QC, and interpretation of results are performed by qualified persons employing a rigorous QA/QC program consistent with industry best practices. Standards and blanks account for a minimum of 10% of the samples, in addition to the laboratories’ internal quality assurance programs. Quality Control data are meticulously evaluated upon receipt from the laboratories for any failures. Appropriate corrective action is taken if assay results for standards and blanks fall outside allowed tolerances. All results disclosed by Heritage Mining have successfully passed the Company’s stringent quality control protocols. The Company does not recognize any factors of drilling, sampling, or recovery that could materially affect the accuracy or reliability of the assay data disclosed. The assay data disclosed in this press release have been verified by the Company’s Qualified Person against the original assay certificates. Heritage Mining notes that it has not completed any economic evaluations of its Melba Project , and the project does not currently have any resources or reserves. Qualified Person Mitch Lavery P. Geo, Strategic Advisor for the Company, serves as a qualified person as defined by National Instrument 43-101 – Standards of Disclosure for Mineral Projects and has reviewed the scientific and technical information in this news release, approving the disclosure herein. ABOUT HERITAGE MINING LTD. The Company is a Canadian mineral exploration company advancing its Ontario Project Portfolio in Northwestern and Northeastern Ontario. The Drayton-Black Lake , Contact Bay and Scattergood projects are located near Sioux Lookout in the underexplored Eagle-Wabigoon-Manitou Greenstone Belt. The Melba Property is located near Ramore, Ontario. All Projects benefit from a wealth of historic data, excellent site access and logistical support from the local community. For further information, please contact: Heritage Mining Ltd. Peter Schloo, CPA, CA, CFA President, CEO and Director Phone: (905) 505-0918 Email: peter@heritagemining.caFORWARD-LOOKING STATEMENTSThis news release contains certain statements that constitute forwardlooking information within the meaning of applicable securities laws.These statements relate to future events of the Company. Anystatements that express or involve discussions with respect topredictions, expectations, beliefs, plans, projections, objectives,assumptions or future events or performance (often, but not always,using words or phrases such as “seek”, “anticipate”,“plan”, “continue”, “estimate”, “expect”,“forecast”, “may”, “will”, “project”, “predict”,“potential”, “targeting”, “intend”, “could”,“might”, “should”, “believe”, “outlook” and similarexpressions are not statements of historical fact and may be forwardlooking information. All statements, other than statements ofhistorical fact, included herein are forward-looking statements.Forward looking information involves known and unknown risks,uncertainties and other factors which may cause the actual results,performance, or achievements of the Company to be materially differentfrom any future results, performance or achievements expressed orimplied by the forward-looking information. Such risks include, amongothers, the inherent risk of the mining industry; adverse economic andmarket developments; the risk that the Company will not be successfulin completing additional acquisitions; risks relating to theestimation of mineral resources; the possibility that the Company’sestimated burn rate may be higher than anticipated; risks ofunexpected cost increases; risks of labour shortages; risks relatingto exploration and development activities; risks relating to futureprices of mineral resources; risks related to work site accidents,risks related to geological uncertainties and variations; risksrelated to government and community support of the Company’sprojects; risks related to global pandemics and other risks related tothe mining industry. The Company believes that the expectationsreflected in such forward-looking information are reasonable, but noassurance can be given that these expectations will prove to becorrect and such forward‐looking information should not be undulyrelied upon. These statements speak only as of the date of this newsrelease. The Company does not intend, and does not assume anyobligation, to update any forward‐looking informationexcept as required by law.This document does not constitute an offer to sell, or a solicitationof an offer to buy, securities of the Company in Canada, the UnitedStates, or any other jurisdiction. Any such offer to sell orsolicitation of an offer to buy the securities described herein willbe made only pursuant to subscription documentation between theCompany and prospective purchasers. Any such offering will be made inreliance upon exemptions from the prospectus and registrationrequirements under applicable securities laws, pursuant to asubscription agreement to be entered into by the Company andprospective investors.NOT INTENDED FOR DISTRIBUTION TOUNITED STATES NEWS WIRE SERVICES OR FOR DISSEMINATION IN THE UNITED STATESCopyright (c) 2026 TheNewswire - All rights reserved.</div></div>

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Heritage Mining Ltd. has confirmed the third occurrence of visible gold in diamond drill hole ML3840-003 at the Melba Project, located in Northeastern Ontario. The visible gold was found at a depth of 72.40m within an 8m shear zone. Due to favorable mineralization, the drill hole has been extended to approximately 150m. The company is awaiting assay results and adheres to strict QA/QC protocols for sample handling and analysis. The Melba Project is situated near historic gold mines and covers an area of approximately 3,886 hectares.

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Heritage Confirms the Third Visible Gold Occurrence in Core and Extends Drill Hole to Length ~150m at Melba Project