North Bay Resources Advances Development of Massive Sulphide Zone at Fran Gold Project, British Columbia

Rhea-AI Summary

North Bay Resources (OTC: NBRI) has completed initial test mining at its Fran Gold Project in British Columbia, focusing on a massive sulphide surface zone. Recent assays confirmed gold grades of 0.5 ounces per ton, with historical assays reaching up to 2.27 ounces per ton.

The company has extracted approximately 10 tons of ore containing gold, copper, and silver mineralization. Economic analysis shows an estimated gross profit of $599 per ton based on current gold prices of $3,400/oz, with potential for cost reduction as operations scale up.

The massive sulphides zone is estimated at 60x30x4 meters, with potential depth up to 30 meters. NBRI is pursuing a 10,000-tonne extraction permit and plans to develop both the high-grade oxide zone and a low-grade bulk tonnage deposit of 20Mt with potential expansion to 40Mt. The company is also initiating an uplisting process from OTCID to OTCQB.

Positive

• High-grade gold assays of 0.5 oz/ton with historical values up to 2.27 oz/ton
• Estimated gross profit of $599 per ton at current gold prices
• Potential for 30% reduction in transportation and mining costs as operations scale
• Large resource potential with deposit area exceeding 1000m x 100m x 300m
• Strategic location next to major mines including Centerra Gold's Mt. Milligan Project

Negative

• High operating costs of $435 per ton including significant transportation costs of $295/ton
• Expected 20% dilution and 20% recovery losses in processing
• Current small-scale operation limited to 10 tons of extracted ore
• Requires additional permits for larger-scale operations

BISHOP, Calif., Aug. 05, 2025 (GLOBE NEWSWIRE) -- North Bay Resources, Inc. (the “Company” or “North Bay”) (OTC: NBRI) is pleased to announce initial test mining has been completed at the Company’s Fran Gold Project, British Columbia. Development commenced at the location of a massive sulphide surface outcrop with recent assay of 0.5 ounce per ton gold (June 2025). The massive sulphide surface zone is between trenches of known high grade gold mineralization and is now the focus of development. Ore has been extracted in the directions of Trench B to the West, Trench C to the East, into the hillside to the North and at depth. The ore is heavily mineralized containing gold, copper, and silver mineralization primarily in the form of chalcopyrite, marcasite, and spherulite/galena. The massive sulphide ore is grey in color, blocky when broken with visual mineralization and veinlets or otherwise heavily oxidized with similar characteristics. Grade has been confirmed in recent assay as well as previous assays in Trenches B + C up to 2.27 ounces per ton gold (see Press Release dated June 16, 2025). Near surface sediment has been stripped and approximately 10 tons of ore has been extracted and packed into supersacks. Additional loading of ore will recommence in approximately 10 days with an expanded crew followed by shipment by tractor trailers to the Company’s Bishop Gold Mill for processing. The Company plans to continue development work into the Fall.

Pictures 1-3 Gold, Copper and Silver Bearing Ore, Fran Gold Project, BC

Fran Gold Surface Zone Economics

The gross value of recently extracted ore, on a per ton basis, utilizing recent and historical assays of 0.5 ounces per ton, based on a current gold price of $3,400 per ounce, is $1,700 per ton. Shipping costs are $295 per ton, mining costs are $60 per ton, and processing costs are $80 per ton ($50 power, $30 labor). Total direct operating costs are $435 per ton at this time. The company further estimates dilution of 20% and recovery losses of an additional 20% reflecting $1,088 per ton value with refinery charges of approximately 5% resulting in payable gold of $1,034 per ton. With direct operating costs of $435 this results in an estimated gross profit of $599 per ton. The current quality of ore is high in the massive sulphides zone and grade is likely to be maintained within this zone. As tonnage increases costs are expected to decline, in particular with per ton reduction in transportation and mining costs of up to 30%.

The massive sulphides zone has been confirmed in Trench B + C and now between the trenches. The zone is currently estimated to be 60 meters x 30 meters x 4 meters depth. Depth may be up to 30 meters where the oxide zone is unlikely to continue. Strike length may be substantially greater with high grade assays stretching as far as Trench E and mid grade ore in Tench A reflecting a distance of over 200m. Width is expected to pinch and swell.

Fran Gold Project

The Company has begun permitting of a 10,000 tonne extraction permit that will allow the Company to utilize large scale equipment and extract at a rate of 50-100 tons per day. Based on the results of the extraction and processing of the 10,000 tonnes, the Company will determine whether to apply for small mine permit of 50,000 tonnes per year or large mine permit. This will be largely dependent on the near term development of the surface oxide zone and long term availability of high grade ore, mine plan, and cost/benefit of development options. It is likely, based on the recently completed development and internal resource estimate, showing a high grade oxide zone and vein system, surrounded by a low grade bulk tonnage deposit that the Company will develop the low grade bulk tonnage deposit in parallel with the ongoing mining of the high grade oxide zone. The development of the core low grade bulk tonnage gold deposit of 20Mt would include an on-site mill and initial extraction of 1Mt per year at an estimated grade of 0.5 grams per tonne with potential expansion upto 2Mt per year and 40Mt resource. The total resource potential, beyond 40Mt, is unknown and likely to expand.

Past exploration and development, including over 18,000m (55,000ft.) of diamond drilling, has shown large intercepts of mixed vein and disseminated gold. The deposit area has been identified to be in excess of 1000m x 100m x 300m within a known strike length of 1700m. The Fran Gold Project is next to Centerra Gold’s Mt. Milligan Project, with Reserves of 264Mt grading 0.3 gram per tonne gold and 0.2% copper and proximate to Artemis Gold’s Blackwater Mine, with Proven and Probable Reserves of 334Mt grading 0.8 grams per tonne gold. Both Mt. Milligan and the Blackwater Mine are two of the largest new copper/gold and gold mines respectively in North America.

Corporate Update

The Company has begun the uplisting process and engaged with its accountant, audit firm, counsel and its transfer agent to complete the necessary filings to become a fully reporting issuer and achieve other minimum requirements to move from OTCID to OTCQB or other equivalent international exchange. The Company will provide details regarding these milestones as they become available.

On behalf of the Board of Directors of

NORTH BAY RESOURCES INC.

Jared Lazerson
CEO

info@northbay-resources.com

northbay-resources.com

X: @NorthBayRes

YouTube: North Bay Resources - YouTube

LinkedIn: North Bay Resources Inc | LinkedIn

This news release may contain certain “Forward-Looking Statements” within the meaning of the United States Private Securities Litigation Reform Act of 1995 and applicable Canadian securities laws.

Photos accompanying this announcement are available at

https://www.globenewswire.com/NewsRoom/AttachmentNg/214b8406-26f6-45cc-8c62-ae304770064d

https://www.globenewswire.com/NewsRoom/AttachmentNg/f6418e11-4d64-454e-9ca0-6bf53f082792

https://www.globenewswire.com/NewsRoom/AttachmentNg/472add96-fe48-45b2-901f-2b672fcc665f

FAQ

What are the recent gold grades reported at North Bay Resources' Fran Gold Project?

Recent assays showed 0.5 ounces per ton gold in the massive sulphide surface zone, with historical assays reaching up to 2.27 ounces per ton in nearby trenches.

What is the estimated profitability per ton for NBRI's Fran Gold Project?

Based on current gold prices of $3,400/oz, the project estimates a gross profit of $599 per ton after accounting for operating costs of $435/ton and recovery losses.

How large is the potential resource at NBRI's Fran Gold Project?

The company estimates a 20Mt low-grade bulk tonnage deposit with potential expansion to 40Mt. The deposit area extends over 1000m x 100m x 300m within a 1700m strike length.

What are the next development steps for North Bay Resources' Fran Project?

NBRI is pursuing a 10,000-tonne extraction permit to enable large-scale equipment use and extraction of 50-100 tons per day. Based on results, they will consider applying for either a 50,000-tonne/year small mine permit or a large mine permit.

How does NBRI's Fran Gold Project compare to nearby mines?

The project is adjacent to Centerra Gold's Mt. Milligan Project (264Mt at 0.3 g/t gold) and near Artemis Gold's Blackwater Mine (334Mt at 0.8 g/t gold), two of North America's largest new copper/gold mines.