Heritage Mining Provides Exploration and Melba Project Update

(TheNewswire)

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VANCOUVER, BC TheNewswire – August 28, 2025 Heritage Mining Ltd. (CSE: HML) (‘ Heritage ‘ or the ‘ Company ‘) is pleased to announce that, further to its news release dated July 22, 2025, it has completed the payment totalling C$5,000 due after 30 days in relation to the Melba Asset Purchase Agreement following a site visit. The Company would also like inform Stakeholders of multiple delay notifications from the Assay Lab due to technical difficulties over the last 30 days. The Company would also like to inform Stakeholders that all samples from the 2025 exploration program have been shipped to the Assay Lab as of August 18, 2025 and the Assay Lab technical difficulties have been resolved.

‘The recent site visit to the Melba Property, alongside a key stakeholder, left us impressed with the project’s potential. Its proximity to world-class mines, strong infrastructure, and a skilled local workforce – all within roughly 24 kilometres – highlights its exceptional positioning. With our detailed desktop review nearing completion, we look forward to advancing toward closing the transaction in short order.

Across all three of our projects, Heritage has maintained a systematic exploration approach, and each has delivered technical success to date. At the Drayton-Blake Lake Project, Zone 3 Extension Target has intersected a broad vein system up to ~74 metres in core length (never before prospected or drilled), with potential strike length of more than 4 kilometres, returning anomalous gold values thus far. At the Contact Bay Project, Rognon Mine area – directly bordering Kinross Gold Corp. – has intersected the mineralized structure beneath the historic mine, an area never previously drilled, where visible gold has been observed in core. Meanwhile, at the Scattergood Property, which is surrounded by active exploration programs from Dryden Gold, Dynasty Gold, and NexGold, remains of interest as we await the finalized report from targeted prospecting program recently completed.’

Together, these results continue to validate our disciplined approach to exploration and underscore the strong potential across Heritage’s portfolio.’ Commented Peter Schloo, President, CEO, and Director of Heritage Mining Ltd.

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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.