Mr. Peter Schloo reports

HERITAGE CONFIRMS HIGHEST EVER VISIBLE GOLD COUNT IN FIRST EVER STRUCTURAL STUDY - DRILL HOLES PLANNED BY BRETT DAVIS - THE MELBA MINE PROJECT

Further to Heritage Mining Ltd.'s visible gold occurrence in ML3800-003 press release dated July 29, 2026, the company has obtained the highest visible gold count (plus 20 occurrences up to two millimetres) in drill hole ML3800-004 within an approximate nine-metre-wide shear zone (true width approximately six m). Visible gold was identified between the interval 45 m to 54 m depth in drill hole ML3800-004, at the Melba mine project. The coarse gold occurs as disseminated grains within the shear/brecciated zone. Drill holes ML3800-003 and ML3800-004 (assays pending) are the most recent holes testing an interpreted high-grade gold shoot identified by Brett Davis in his structural evaluation of the Melba vein system.

"The confirmation of visible gold occurrences within a approximately six m wide true width gold-bearing mineralized breccia/shear zone bodes well for the project development at Melba. Brett Davis's structural interpretation of the inferred high-grade gold shoot appears to be spot-on, with these two recent holes both intersecting visible gold. We look forward to reporting further on our ongoing diamond drilling program and additional milestones in short order," commented Peter Schloo, president, chief executive officer and director of Heritage.

"Textures and mineralization-alteration-veining assemblages are typical of an orogenic gold system that has evolved from ductile deformation conditions through to brittle-ductile. We are in the right address, with the district hosting plus one Moz gold deposits in the world-class, highly gold-endowed Timmins-Kirkland Lake area. This is becoming a very interesting project and I look forward to further testing the new structural theory, given the near-term success," commented Brett Davis, adviser to Heritage Mining.

Brett Davis (Olinda Gold Pty. Ltd.) findings

Melba mineralization is hosted by a structurally simple system of ductile shear zones that have approximately northwest-southeast to east-southeast-west-northwest strikes and moderate to steep dips. The zone hosting abundant visible gold at approximately 50 m in ML3800-004 has an approximate northeast-southwest strike. Textures and mineralization-alteration-veining assemblages are typical of an orogenic gold system that has evolved from ductile deformation conditions through to brittle-ductile.

Mineralized volumes are visually obvious, occurring as strong ductile fabric development and pronounced hydrothermal mineral deposition that manifest as sericite-carbonate-pyrite alteration and several stages of quartz-dominated veining with variable amounts of carbonate.

Gold is associated with brecciation that overprinted early formed quartz veins during progressive evolution of ductile shear zones that are interpreted to comprise a sheeted (braided) system. A pyrite-altered dioritic intrusion is interpreted as pregold mineralization and has a common spatial association with the mineralized shear zones.

Orientation data for mineralized zones from drill holes ML3800-003 and ML3800-004 is consistent with that shown in historical mapping. In combination with foliation geometries, the observations and data are consistent with accommodation of N-side-up movement and the development of shoots that are interpreted as plunging at a low angle to the east.

Melba, located approximately 22 kilometres northeast from Kirkland Lake and 90 km southeast of Timmins in Northeastern Ontario, Canada. Melba lies along the Ross fault, which is a splay off of the Porcupine-Destor fault zone, and is associated with development stage and historic producing gold mines: McEwen mine (Grey Fox mine) approximately 22 kilometres away and the Ross mine approximately 16 km away.

Technical program

Heritage Mining adheres to a strict QA/QC (quality assurance/quality control) 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 drill hole 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 on-site logging facility where company personnel would take over the core handling.

Sampling, subsampling 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 operates under a commercial contract with Heritage Mining. Drill core samples are shipped to Paragon for sample preparation at its facilities in Timmins, Ont. 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 100 degrees Celsius, crushing to 70 per cent passing two mm, riffle split approximately 500 g into a PA jar and 250 g for pulverization to 85 per cent passing 75 micrometres) 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 part per million to 350 ppm. After gold assays are returned, Heritage then may choose to perform multielement assays on selected samples based on the gold results first with Paragon. In these cases, an aliquot is taken from the previously prepared 250 g split for analysis by 48MA-MS (four-acid digestion followed by multielement 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 per cent 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, PGeo, strategic adviser 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, Ont. All projects benefit from a wealth of historic data, excellent site access and logistical support from the local community.

We seek Safe Harbor.