Mr. Peter Schloo reports

VISIBLE GOLD SHINES IN HERITAGE MINING'S HISTORIC DRILLING - UP TO 23.27 G/T AU OVER 4.5M AND 6.85 G/T AU OVER 12.35M NEAR SURFACE AT THE MELBA PROJECT

Heritage Mining Ltd. has provided historical highlights supporting a phase 1 exploration plan further to the press release dated Sept. 23, 2025, the closing of the Melba property acquisition in Northeastern Ontario, Canada, within the Timmins/Kirkland Lake gold camp. The Melba mine is located 22 kilometres southeast from the Ross mine along the Ross fault. The company anticipates to mobilize this program in short order.

Melba mine exploration plan highlights:

• Diamond drilling Q4 2025/Q1 2026 designed to confirm multiple high-grade historical results, 26 diamond drill holes totalling approximately 1,780 metres:
  • Historical highlights;
  • Up to 23.27 grams per tonne Au (gold) over 4.5 m and 6.59 g/t Au over 12.87 m near surface;
  • Multiple occurrence of visible gold in multiple drill holes and surface workings.
• Systematic sampling of ore and rock piled located in close proximity to the Melba mine:
  • Ore pile 2012 bulk sample results average grade of 3.99 g/t, ore pile estimated to be 2,000 short tonnes or 230.90 ounces Au estimated;
  • Rock piles historically sampled up to 2.23 g/t Au.
• Detailed inspection of four veins identified through historical prospecting and trenching:
  • The Rolling vein, the Mike vein, the Blue vein, the Contact vein.

"The Blue vein is the most important and is the on the underground workings was carried out on" (Assessment Report, 1962), multiple historical occurrences of visible gold at surface.

• Geophysical interpretation of historical data.

Note: All ore/rock pile sampling with be submitted for gold assays.

"We are very impressed with multiple high-grade historical intercepts at the Melba mine from historical reports. We look forward to systematically confirming historical high-grade results in the near term and developing this project," commented Peter Schloo, president, chief executive officer and director of Heritage Mining.

Melba property

The Melba mine is located in Northeastern Ontario, Canada, southeast of Matheson, Ont., approximately seven kilometres east off the Highway 11, on the section of highway travelling from Kirkland Lake to Cochrane. The Melba mine is located in Northeastern Ontario close to the Ontario and Quebec border. It is fortunate the location of the Melba property lies within the central hub of over 100 years of mining activities, including active mining operations within the Abitibi greenstone belt. The claim package includes single-cell mining claims covering 1,522.70 hectares and one mining lease.

Property geology

The governing element of structure appears to be a contact between dioritic greenstone to the south and argillaceous greywacke to the north. The contact trends north 50 to 60 degrees west and dips northward. Whether the greywacke is part of a synclinal trough of sediments that are younger than the greenstone or whether it is part of a sedimentary band belonging to the greenstone series is an unknown factor at present. The greywacke is cut by dikes of porphyry that run parallel to the contact. The main gold-bearing vein, usually described as the Blue vein, also runs parallel to the contact but lies within the sediments. It strikes north 55 degrees west and dips northward 55 degrees. It is accompanied by shearing and alteration, also by a pattern of cross fracturing that has produced faulting in the main vein and has led to the development of irregular veins in the adjacent rocks. The main vein is displaced 60 feet (18.2 metres) northward near the shaft and other displacements have been found underground. The geological setting resembles that of the sedimentary belt in the Beatty-Munro area. Numerous feldspar porphyry, diorite and basic syenite dikes were intersected by the drilling. Over all, a significant amount of the drill core showed alteration, some highly, while carbonate stringers were numerous and visible gold was noted in drill core.

Note

All historical values included in this press release are approximate recalculations from feet to metres and dollars per oz to g/t based on historically stated $35 per ounce gold. Approximate locations of grade mineralization are also included. The purpose is to illustrate potential gold mineralization for historical confirmation through various exploration methods. All calculations and historical drill results are not National Instrument 43-101 compliant and can not be relied upon.

Qualified person

Mitchell Lavery, 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 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.

We seek Safe Harbor.