Vanguard Mining Launches 2025 Diamond Drill Program at Redonda Copper-Molybdenum Project

September 17, 2025 — Leads & Copy — Vanguard Mining Corp. has commenced its 2025 Diamond Drill Program at its 100% owned, 2746.46 Hectare Redonda Copper-Molybdenum 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 Airborne Geophysical program. Recent drilling at the project returned up to 142.6 Meters of .279% Cu, .0281% Mo, with surface values ranging from near surface, 3.1 Meters to 48 Meters of 0.529% CuEq.

CEO David Greenway stated that kicking off the 2025 work at Redonda is a big step. The company has permits in place, the budget secured, and is moving ahead with a deep drilling program to test the strongest targets from recent surveys and drilling. The goal 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.

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.

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.

Analytical work for samples was completed by ALS Canada Ltd. 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.

J. T. Shearer, M.Sc., D.I.C., P.Geo., a consulting geologist, has reviewed and approved the scientific and technical information contained in this release.

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

Source: Vanguard Mining Corp.