Mr. Rick Mark reports

HARVEST GOLD DISCOVERS SIGNIFICANT GOLD-SILVER-COPPER HALOS IN THE NORTHERN PART OF THE MOSSEAU PROPERTY

Harvest Gold Corp. has released the results of a detailed review of current and historical drilling data conducted in light of the company's 2025 drilling program. This work has identified several significant near-surface Au-Ag-Cu (gold-silver-copper) halos in the northern portion of the Mosseau property, its flagship property in the Urban Barry belt in Quebec's Abitibi region.

Rick Mark, president and chief executive officer of Harvest Gold, stated: "Our most recent press release announced, among other things, 10- and 19-metre widths of anomalous gold or copper at depth below the historic, non-43-101 Morono gold deposit. We realized we had identified something new, 40-plus years after the last Morono drill program. We also realized samples were not analyzed for copper and silver during historic drilling. That led our geological team to evaluate the historical data of the entire north area of Mosseau. This new understanding of the area's mineralization changed our thinking."

Louis Martin, geologist for Harvest Gold in Quebec, states: "The identification of broad, near-surface gold with Ag-Cu pathfinders from historical drilling significantly strengthens the interpretation of our 2025 drill results. Re-evaluating the Mosseau data using this model continues to improve our understanding of the mineralizing system and provides a strong technical basis for targeting and additional drilling in the northern part of the property."

Following the reporting of wide gold intersections with associated anomalous silver and copper from the 2025 drill program (see Harvest Gold news releases dated Jan. 8, 2026), the company initiated a systematic re-evaluation of historical drill results to identify similar styles of mineralization. This review applied a lower gold cut-off grade than used by previous operators to better define broad zones of mineralization consistent with the Au and Ag-Cu pathfinders recognized in the Harvest Gold 2025 drilling.

As a result of this new analytical perspective, multiple significant Au-Ag-Cu halos have been identified within several key target areas on the Mosseau property. Critically, this allows the company to narrow its focus to three principal areas of interest, including trench No. 1, the Morono gold deposit and what were thought to be isolated targets along the northern boundary of the property.

Examples of broad Au-Ag-Cu halos from holes drilled by SOQUEM in 2001 (GM59164) in the area of trench No. 1 include:

• 1.44 grams per tonne (g/t) Au over 26.2 metres (hole 1217-01-13);
• 3.37 g/t Au over 14.1 metres (hole 1217-01-14).

Both drill holes also returned anomalous silver and copper values directly associated with the higher-grade gold intervals, similar to the results observed in the 2025 drilling by Harvest Gold (see the attached table).

At the Morono gold deposit, several wide historical intersections -- locally extending up to 35.36 metres -- further illustrate the potential for extensive gold halo development. Selected historical intersections include:

• 3.84 g/t Au over 8.4 metres (M-4-88);
• 3.05 g/t Au over 7.62 metres (M-12-87);
• 2.66 g/t Au over 8.35 metres (M-25-87).

Importantly, most of these historical intercepts occur at shallow depths and near surface, highlighting the potential for bulk-tonnage and open-pit-style mineralization, subject to additional drilling and future economic studies.

Based on these results, Harvest Gold has expanded its understanding of the northern area of Mosseau and believes it now generates an expanded opportunity and is contemplating a follow-up drill program in the northern portion of the Mosseau property. The proposed program would consider up to 40 diamond drill holes totalling up to 6,000 metres to further test and expand these newly discovered Au-Ag-Cu halo zones.

About Harvest Gold Corp.

Harvest Gold is focused on exploring for near-surface gold deposits and copper-gold porphyry deposits in politically stable mining jurisdictions. Harvest Gold's board of directors, management team and technical advisors have collective geological and financing experience exceeding 400 years.

Harvest Gold has three active gold projects focused in the Urban Barry area, totalling 377 claims covering 20,016.87 hectares, located approximately 45 to 70 kilometres west of Gold Fields Ltd.'s Windfall deposit.

Harvest Gold acknowledges that the Mosseau gold project straddles the Eeyou Istchee-James Bay and Abitibi territories. Harvest Gold is committed to developing positive and mutually beneficial relationships based on respect and transparency with local indigenous communities.

Harvest Gold's three properties, Mosseau, Urban-Barry and LaBelle, together cover over 50 kilometres of favourable strike along mineralized shear zones.

National Instrument 43-101 disclosure -- historical data

The historical drill results referenced in this news release were completed by previous operators and have not been independently verified by Harvest Gold. Although the company considers the historical work to be relevant and reliable, it has not completed sufficient work to verify these historical results and does not rely on them for the purposes of this disclosure. The historical information is presented solely to provide context for current exploration results and continuing exploration planning.

Qualified person statement

All scientific and technical information in this news release has been prepared and approved by Louis Martin, PGeo, technical adviser to the company and considered a qualified person for the purposes of NI 43-101.

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