Vancouver, BC – TheNewswire - September 17, 2025 – Vanguard Mining Corp. ("Vanguard" or the "Company") (CSE: UUU | OTC: UUUFF | Frankfurt: SL51) announces the commencement of its 2025 Diamond Drill Program (“Drill Program”) at its 100% Owned, 2746.46 Hectare Redonda Copper-Molybdenum Project (the “Project”), located within the Vancouver Mining Division of British Columbia near Campbell River.

The Drill Program will be guided by the previously announced Precision GeoSurveys (“Precision”) Airborne Geophysical program which covered the project including the recent drilling at the project returned up to 142.6 Meters (467.8 of Feet) .279% Cu, .0281% Mo. (See Table 1) with surface values, ranging from near surface, 3.1 Meters (10.17 Feet) to 48 Meters (157.4 Feet) of 0.529% CuEq. (See Release) 

David Greenway, CEO of Vanguard Mining Corp., stated, “Kicking off our 2025 work at Redonda is a big step for Vanguard. We have our permits in place, the budget secured, and we’re moving ahead with a deep drilling program to test the strongest targets from our recent surveys and drilling. Past work delivered standout results, including a long 174-metre zone starting right at surface and strong surface samples around 0.5% copper-equivalent—giving us clear places to drill deeper and expand. We’re operating in British Columbia, which is open for responsible development, and the Government of Canada’s new Major Projects Office, set up as a single, fast-track point of contact, shows a real commitment to getting important projects built. With these tailwinds, our goal this season is to build on the discovery outlined in 2023–2024 and start defining the true size of the system.”

The Project is fully permitted to commence drilling, and the Company is fully funded for the proposed exploration program. The 2025 program is designed to follow up on a near-surface Copper/Moly discovery announced in 2023 and 2024 as shown in the table below:

Table 1: 2023 Exploration Program Combined with Historic 1979 Intercepts

2023 Exploration Program Combined With Historic 1979 Intercepts
Hole #	From/To	Core Length	Cu%	MoS2%	Re (ppm)
Hole Red-23-04 Mineralization starts from surface	3.1-18.2m	15.2m	0.452	0.0265	0.1053
Hole Red-23-04	25.5-97.5m	72m	0.235	0.0228	0.1106
Hole Red-23-04 Hole bottoms in good grade	147.8-163.1m	30.3m	0.212	0.0154	0.0514
Hole Red-23-03 Mineralization starts from surface	3.1-48m	45.0m	0.329	0.0265	0.1111
Hole Red-23-03	68.8-141.0m	77.3m	0.323	0.0197	0.0791
Hole Red-23-03 Hole bottoms in good grade	199.5-210.0m	10.5m	0.174	0.0117	0.0563
Hole Red-23-05 Mineralization starts from surface	2.7-33m	30.3m	0.213	0.0192	0.0749
Hole Red-23-05 Hole bottoms in good grade	39.3-182.0m	142.6m	0.279	0.0281	0.0927
Hole Red 23-02 Mineralization starts from surface	3.1-111.0m	108m	0.251	0.025	0.1025
Hole Red-23-02 Hole bottoms in good grade	158.5-169.2m	10.7m	0.375	0.1377	0.5871
Hole Red-23-01 confirmation hole collared outside Potassic Zone	60-67m	7m	0.136	0.0023	0.0167

 

Historic Hole #	From/To	Core Length	Cu%	MoS2%	CuEq%
DOH R79-2	110.0-206.7m	96.7	0.21	0.019	0.277
DOH R79-3 Mineralization starts from surface	3.4-27.5m	24.1m	0.42	0.075
	35.0-60.0m	25.0m	0.19	0.024
	67.5-97.5m	30.0m	0.17	0.120
	140.0-152.5m	12.5m	0.30	0.015
	3.4-177.5m	174.1m	0.204	0.012	0.340
DOH R79-5 Mineralization starts from surface	2.7-55.8m	53.1m	0.33	0.025
	92.5-135.0m	42.5m	0.20	0.038
	155.0-172.5m	17.5m	0.37	0.010
	182.5-210.0m	27.5m	0.22	0.021
	2.-210.0m	207.3m	0.204	0.012	0.277
DOH R79-6 Mineralization starts from surface	2.5-30.0m	27.5m	0.23	0.058
	142.5-155.5m	10.0m	0.10	0.045
	2.5-117.5m	115m	0.132m	0.012	0.205
DOH R79-7	30.0-37.5m	7.5m	0.20	0.004
	15-47.5m	32.5m	0.148	0.004	0.172
DOH R79-8	125.0-135.0m	10.0m	0.06	0.034
	125-157.5m	32.5m	0.107	0.004	0.155
DOH R79-9 Mineralization starts from surface	5.0-15.0m	10.0m	0.16	0.014	0.203
	97.5-110.0m	12.5m	0.19	0.011
	175.0-210.0m	35.0m	0.09	0.27
	90-212.5m	122.5m	0.098	0.007	0.140

 

The Company is currently permitted for up to 10 drill sites and is considering an aggressive 2025 program that will include detailed geological mapping of brecciation trends and deeper drilling below 500 metres within the known potassic core. Mineralized zones remain open to the north and south, with potential extensions along an old road system one kilometre to the northwest. To the south, mineralization may plunge beneath the Coast Plutonic Complex, where airborne geophysics and subsequent drilling are warranted. In addition, extensive iron skarns identified on the east side of Redonda Island may represent part of a much larger magmatic-hydrothermal system at depth, reinforcing the district-scale potential of the project.

 

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Figure 1: 2024 Airborne Magnetics (RTP) with lineaments – See release

Drill Hole locations have been carefully selected using both historical data and from the results of the Company’s wide-ranging airborne geophysical survey completed in late 2024, which integrated total magnetic, gradient magnetic, and radiometric datasets. These results have revealed strong correlations with mapped geological domains, including a northeast-southwest fault system with right-lateral offset and several circular magnetic lows potentially linked to intrusive centres. Radiometric potassium data highlights arcuate potassic alteration zones, a key vector in porphyry copper-molybdenum systems, with priority drill targets identified both near historical drilling and along newly defined structural corridors. The full airborne survey results, including GeoTIFF magnetic and radiometric maps, will be posted to the Company’s website to further illustrate the scale and quality of the Redonda exploration opportunity.

About Redonda

he Redonda Project comprises nine mineral claims totaling 2,746.46 ha, located approximately 40 km northeast of Campbell River, British Columbia. The property is accessible year-round via scheduled barge service from Campbell River (e.g., MarineLink or other contract barges), with on-site access provided by 5 km of recently upgraded logging road from Redonda Bay. Active forestry maintains an extensive network of forest service roads across the claims. Field work in 2021 was conducted under a Letter of Support from the Klahoose First Nation within their Traditional Territory, together with a Free Use Permit, Drill Permit, and IP Exemption issued by the Ministry of Energy, Mines and Low Carbon Innovation (EMLI). Consultation with the Homalko First Nation has concluded, and a permit for additional drill sites is being issued.

Redonda lies within the Coast Suture Zone between the Wrangellia Terrane and the Coast Plutonic Complex. Early Cretaceous dioritic intrusions of the Coast Plutonic Complex are cut by at least three later intrusive phases: (i) a quartz plug; (ii) a wide, hornblende-rich dike locally brecciated over ~600 metres of exposed length; and (iii) several smaller feldspar dikes near the southwestern margin of the hornblende body. Copper-molybdenum mineralization is most concentrated along the hornblende dike, particularly within brecciated zones. The geological setting shares several characteristics with nearby porphyry systems, including the OKover copper-molybdenum deposit located ~34 km to the southeast (north of Powell River) and the Gambier Copper deposit in Howe Sound.

QA/QC

Precision GeoSurveys flew the survey using an Airbus AS350 helicopter, registration C-GSVY.  The survey aircraft was equipped with a data acquisition system, GPS navigation system, pilot guidance unit (PGU), laser altimeter, triple magnetic gradient boom system, fluxgate magnetometer, gamma ray spectrometer, barometer, and temperature/humidity probe.  In addition, two magnetic base stations were used to record temporal magnetic variations.1

Analytical work for samples was completed by ALS Canada Ltd. an ISO/IEC 17025 2017 Accredited Lab, with sample preparation and geochemical analyses in North Vancouver, BC. Core samples were fine crushed before a 250-gram split was pulverized to better than 85% passing 75 microns. Gold was determined for core samples by the PGM-ICP24 procedure which involves fire assay preparation using a 50-gram charge with an inductively coupled plasma-atomic emission spectroscopy finish (“ICP-AES”).   Multi-element data for 48 elements was determined for all samples by the ME-MS61 procedure, which involves a four-acid digestion followed by ICP-AES and inductively coupled plasma-mass spectrometry.

Rigorous procedures are in place regarding sample selection, collection, chain of custody and data entry. Certified assay standards and blanks are routinely inserted into the sample stream of diamond drill samples to ensure integrity of the assay process. All diamond drill samples referenced in this news release have passed the QA/QC procedures as described above. Core was sampled using a manual splitter, with half of each interval sent to the lab for analysis, and the other half retained with sample intervals marked on the boxes.

Qualified Person

The scientific and technical information contained in this news release has been reviewed and approved by J. T. Shearer, M.Sc., D.I.C., P.Geo. (BC & Ontario), a consulting geologist who is a “Qualified Person” as such term is defined under National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43- 101”). Mr. Shearer is not arms length for Vanguard.

About Vanguard Mining Corp.

Vanguard Mining Corp. is a mineral exploration and development company dedicated to the discovery and advancement of high-value strategic mineral assets. The Company is focused on creating long-term value through the responsible acquisition and development of highly prospective projects located in stable, mining-friendly jurisdictions worldwide.

All Stakeholders are encouraged to follow the Company on its social media profiles on LinkedIn, X.com, Facebook and Instagram and sign up for updates at Vanguardminingcorp.com

On Behalf of the Board of Directors

“David Greenway”

David Greenway, CEO

For further information, please contact:

Vanguard Mining Corp.
Brent Rusin
Phone: +1 672-533-0348
E-Mail: brent@vanguardminingcorp.com
Website: vanguardminingcorp.com

Neither the Canadian Securities Exchange nor its Regulation Services Provider (as that term is defined in the policies of the CSE) accepts responsibility for the adequacy or accuracy of this release.

 

Disclaimer for Forward-Looking Information

Certain statements in this release are forward-looking statements, which reflect the expectations of management regarding Vanguard’s intention to continue to identify potential transactions and make certain corporate changes and applications. Forward looking statements consist of statements that are not purely historical, including any statements regarding beliefs, plans, expectations, or intentions regarding the future. Such statements are subject to risks and uncertainties that may cause actual results, performance, or developments to differ materially from those contained in the statements. No assurance can be given that any of the events anticipated by the forward-looking statements will occur or, if they do occur, what benefits Vanguard will obtain from them. These forward-looking statements reflect managements’ current views and are based on certain expectations, estimates and assumptions which may prove to be incorrect. A number of risks and uncertainties could cause actual results to differ materially from those expressed or implied by the forward-looking statements, including Vanguard’s results of exploration or review of properties that Vanguard does acquire. These forward-looking statements are made as of the date of this news release and Vanguard assumes no obligation to update these forward-looking statements, or to update the reasons why actual results differed from those projected in the forward-looking statements, except in accordance with applicable securities laws.

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1 Reference: Walker, S. P.Geo. and Poon, J. P.Geo., Airborne Geophysical Survey Report, December 2024.