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VANCOUVER, BC TheNewswire - March 24, 2025 Heritage Mining Ltd. (CSE: HML FRA:Y66) (" Heritage " or the " Company ") is pleased to announce that samples have been submitted on Saturday March 22, 2025 from the New Millennium 2025 diamond drill program targeting two mineralized vein systems in the immediate vicinity of the highest grade grab sample on the  property (2,330 gt Au) within its flagship exploration project Drayton Black Lake (" DBL ") (Figure 2 and 3). The Company anticipates recommencing drilling on Zone 3 Extension Prospect in short order.

New Millenium Target Historical Highlights:

• The Company's 2025 diamond drill program drilled under historical trenches which had results up to 5.18oz/ton Au and 4.8oz/ton Au, +1,000g/t Ag, 0.37% Cu, %0.078 Mo, +1%Pb, 0.68%Zn

• The Company has confirmed these findings at surface in prior work programs returning up to 2,330 g/t Au (grab) in the immediate vicinity of the above-mentioned trenches tracing over 300m at surface

• Multi-elemental analysis from prior channel sampling programs supports positive correlation between Au and Te, Ag, Cu, Pb, Zn. When combined with visual inspection of core, shows similarities to mineralization at Zone 3, an intrusion related gold mineralization system identified in 2024 comparable to Hammond Reef style mineralization.

New Millennium Target Highlights (Press Release: February 27, 2025)

• Total 556m in nine holes completed vs planned 370m over seven holes. Additional meterage was driven from favorable mineralization intersection. All samples are delivered to the lab as at Saturday March 22, 2025.

• Drill holes show multiple occurrences (up to 51.40m core length) of variably mineralized shear zone material, local granitic/felsic intrusions, and massive to semi massive quartz veins (Figure 1) in seven of the nine holes drilled.

• The presence of chalcopyrite with pyrite in chlorite-carbonate alteration with patchy k-feldspar alteration in quartz veins and wall-rock is reminiscent of some of the best Au-bearing intercepts at the nearby Zone 3 Prospect that were drilled in 2024 (September 20, 2024 Press Release).

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Figure 1: HML025-006 Select photograph showing variably mineralized shear zone material hosting semi massive fine grade pyrite filling laminations within massive to semi massive quartz veins associated with k-feldspar altered granite.

"The historical significance of the recently acquired (100% owned) New Millennium target area is very impressive and important to mention as we look forward to assay results. Our systematic exploration approach has successfully intersected significant mineralized core lengths, which is an interesting twist compared to the historically observed high-grade but narrow veins at surface.

It seems to widen at depth, which is a very good sign, considering we have only drilled up to 87m.

We are also looking forward to drilling Zone 3 (DBL Project) and the Rognon Mine are (Contact Bay Project), both of which are high potential drill target areas.

For some time now, we have secured a controlling position on our projects within one of the last underexplored greenstone belts with fantastic access in Northern Ontario. I would like to thank the technical team for their contributions to a successful 2025 drill program thus far, and I look forward to the assay results, continued drilling, and our growth together." Commented Peter Schloo, President, CEO and Director of Heritage

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Figure 2: DBL Total Property Outline

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Figure 3: DBL Project: Reduced-to-Pole Magnetic Intensity over Bedrock Geology

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 two high grade gold-silver-copper projects in Northwestern Ontario. The Drayton-Black Lake and the Contact Bay projects are located near Sioux Lookout in the underexplored Eagle-Wabigoon-Manitou Greenstone Belt . Both projects benefit from a wealth of historic data, excellent site access and logistical support from the local community. The Company is well capitalized, with a tight capital structure.

For further information, please contact:

Heritage Mining Ltd.

Peter Schloo, CPA, CA, CFA

President, CEO and Director

Phone: (905) 505-0918

Email: peter@heritagemining.ca

FORWARD-LOOKING STATEMENTS

This news release contains certain statements that constitute forward looking information within the meaning of applicable securities laws. These statements relate to future events of the Company. Any statements that express or involve discussions with respect to predictions, 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 similar expressions are not statements of historical fact and may be forward looking information. All statements, other than statements of historical 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 different from any future results, performance or achievements expressed or implied by the forward-looking information. Such risks include, among others, the inherent risk of the mining industry; adverse economic and market developments; the risk that the Company will not be successful in completing additional acquisitions; risks relating to the estimation of mineral resources; the possibility that the Company's estimated burn rate may be higher than anticipated; risks of unexpected cost increases; risks of labour shortages; risks relating to exploration and development activities; risks relating to future prices of mineral resources; risks related to work site accidents, risks related to geological uncertainties and variations; risks related to government and community support of the Company's projects; risks related to global pandemics and other risks related to the mining industry. The Company believes that the expectations reflected in such forward-looking information are reasonable, but no assurance can be given that these expectations will prove to be correct and such forward‐looking information should not be unduly relied upon. These statements speak only as of the date of this news release. The Company does not intend, and does not assume any obligation, to update any forward‐looking information except as required by law.

This document does not constitute an offer to sell, or a solicitation of an offer to buy, securities of the Company in Canada, the United States, or any other jurisdiction. Any such offer to sell or solicitation of an offer to buy the securities described herein will be made only pursuant to subscription documentation between the Company and prospective purchasers. Any such offering will be made in reliance upon exemptions from the prospectus and registration requirements under applicable securities laws, pursuant to a subscription agreement to be entered into by the Company and prospective investors.

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