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Heritage Obtains High-Resolution LiDAR Data, at the Melba Project

Exploration Programs

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FOR DISSEMINATION IN THE UNITED STATES

Heritage Obtains High-Resolution LiDAR Data, at the Melba Project

TORONTO, ON , July 23, 2026 – Heritage Mining Ltd. (CSE: HML FRA: Y66) (“ Heritage” or

the “Company”) is pleased to announce it has secured property-wide, high-resolution LiDAR data covering its

Melba Project, located ~22km northeast from Kirkland Lake and 90km southeast of Timmins in Northeastern

Ontario, Canada. This data will be incorporated into the ongoing exploration programs for structural study and

new target generation.

Figure 1: Melba Project – High-Resolution LiDAR – Property Wide

The newly acquired LiDAR dataset represents an important addition to Heritage’s exploration database and will

be integrated into the Company’s ongoing structural interpretation and target-generation programs.

High-resolution LiDAR provides a detailed digital representation of surface topography, allowing the

Company’s technical team to identify subtle linear features, structural corridors, bedrock expressions and

topographic breaks that may not be visible through conventional satellite imagery or field mapping alone.

The dataset will be used to:

• Identify and trace previously unrecognized structural lineaments;

• Improve the interpretation of faults, fractures, shear zones and lithological contacts;

• Evaluate potential structural intersections and areas of increased geological complexity;

• Refine existing exploration targets; and

• Generate new priority areas for geological mapping, prospecting, geophysics and future drill testing.

The Company believes the LiDAR data has the potential to significantly improve its understanding of the

structural architecture of the Melba Project. Structural controls are an important component of many Archean

gold systems in Northeastern Ontario, and t he ability to identify and evaluate these features across the entire

property provides Heritage with a valuable tool for advancing the project.

“Securing property-wide, high-resolution LiDAR is a significant step forward for the Melba Project. This is not

simply another layer of mapping data —it provides us with a powerful tool to see subtle structural patterns,

lineaments and geological relationships that could directly contribute to the identification of new exploration

targets.

LiDAR can dramatically improve structural interpretation, particularly in areas where vegetation, overburden

and wetlands limit conventional surface mapping. We are already incorporating the data into our targeting

process and are excited about its potential to identify previously unrecognized structural corridors and priority

areas for follow-up exploration.

We look forward to updating the market on the results of our interpretation work and additional developments

at Melba in the near term,” commented Peter Schloo, President, CEO and Director of Heritage Mining Ltd.

The Company is currently reviewing the LiDAR dataset alongside available geological, geophysical and

historical exploration information. The integrated interpretation will support the ranking of structural areas of

interest and the development of new exploration targets across the Melba Project.

The Melba project is located ~22km northeast from Kirkland Lake and 90km southeast of Timmins in

Northeastern Ontario, Canada. The project is comprised of ~3,886Ha. Melba lies along the Ross Fault, which is

a splay off the Porcupine-Destor Fault Zone and is associated with development -stage and historic producing

gold mines: McEwen Mine (Grey Fox Mine, +1Moz Au) ~22km away, and the Ross Mine (+1Moz Au) ~16km

away.

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 lithologi cal 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 gol d 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

Stephen Hughes, 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: [email protected]

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 comm unity 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.