Heritage Mining Expands Gold Zone at Melba Mine Project
VANCOUVER, BC — March 2, 2026 — Leads & Copy —
Heritage Mining Ltd. (CSE: HML FRA: Y66) has announced the expansion of the gold zone at its Melba Mine Project following an ongoing diamond drill program. The drilling results include up to 8.57g/t Au over 3 meters from 71 meters (ML3900-002) and an extension of the gold zone to 93 meters along strike, intersecting 1.45g/t Au over 4.5 meters from 66 meters (ML3840-001).
The Melba Mine is located approximately 22 kilometers northeast of Kirkland Lake and 90 kilometers southeast of Timmins in Northeastern Ontario, Canada. The project encompasses approximately 3,886 hectares. The mine is situated along the Ross Fault, a splay off the Porcupine-Destor Fault Zone, near McEwen Mining’s Grey Fox Mine (+1Moz Au) and the Ross Mine (+1Moz Au).
According to Peter Schloo, President, CEO, and Director of Heritage, the drill program’s results support the exploration potential of the Melba Project. Schloo added that the company anticipates sharing further exploration results soon.
The Melba Mine is located in Northeastern Ontario, southeast of Matheson, approximately seven kilometers west off the King’s Highway 11. The claim package includes single cell mining claims spanning approximately 3,886 hectares and one mining lease.
Heritage Mining adheres to QA/QC protocol for handling, sampling, sample transportation, and analyses. Chain-of-custody protocols ensure sample security until delivery at the laboratory.
Drill core is boxed, covered, and sealed at the drill rig site. Core boxes are labeled with the official drillhole name and identified in numerical sequence. Wooden blocks with the corresponding down hole meterage are inserted after every drill run. Drill core boxes are transported to the onsite logging facility where company personnel take over core handling.
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 meter, adjusted to a minimum length of 0.5 meter 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.
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).
The drill program design, QA/QC, and interpretation of results are performed by qualified persons employing a 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 evaluated upon receipt from the laboratories for any failures. 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 quality control protocols. Heritage Mining 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.
Mitch Lavery P. Geo, Strategic Advisor for the Company, serves as a qualified person as defined by National Instrument 43-101 and has reviewed the scientific and technical information in this news release, approving the disclosure herein.
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.
Source: Heritage Mining Ltd.
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