Mr. Mike Harp reports

RIDGELINE MINERALS COMMENCES DRILL PROGRAM AT THE BIG BLUE PORPHYRY CU-AU PROJECT, NEVADA

Ridgeline Minerals Corp. has started the company's diamond core drill program at the Big Blue porphyry copper-(Cu)-gold-(Au) project in Elko county, Nevada. The maiden drill program has been designed to test high-priority chargeability and resistivity anomalies located directly beneath the historically producing Delker mine trend (see Jan. 20, 2025, press release) with the goal of intersecting the proposed porphyry source to the high-grade Cu skarn observed at surface. The program will complete an initial two-hole fence of up to 1,800 metres (m) starting with core hole BB25-001, with results to be released as they are received.

Mike Harp, Ridgeline's vice-president, exploration, commented: "The first of two planned core holes is in progress and will be drilled beneath the historic Delker mine and directly across the porphyry dike swarm that is the interpreted source to the high-grade Cu skarn at surface. Our recent IP survey has identified multiple highly prospective porphyry centers at Big Blue with the past-producing Delker mine trend being our shallowest and highest-priority target. We will provide regular updates as the program progresses."

Drill program objectives

The initial program at Big Blue has been designed to test key structural and geophysical targets along the Delker mine trend with the goal of intersecting high-grade Cu skarn and/or porphyry Cu-Au style mineralization at depth.

• BB25-001 will drill across the projected quartz feldspar porphyry (QFP) dike swarm and directly down dip of the high-grade past-producing Delker mine.
  • Hole will test both chargeability and resistivity anomalies identified in the company's 2024 IP survey and has the potential to intersect both skarn and porphyry Cu style alteration and mineralization.
  • Potential for a second steeper angle hole beneath BB25-001 depending on visual results of the first hole.
• BB25-002 will drill a near-vertical hole into the core of the 20 to 25 mV/V (millivolt per volt) chargeability high that underpins the Delker mine trend.
  • This hole will target the conceptual porphyry source to the shallow high-grade Cu skarn that was mined near surface.

Big Blue project

Big Blue is located in Elko county, Nevada, approximately 75 kilometres (km) southeast of the city of Elko, Nev. The project includes the past producing Delker mine, which historically produced 94,434 pounds of copper at an average grade of 6.2 per cent between 1916 to 1917 from structurally controlled skarn deposits outcropping between the Delker and Skarn Hill mines. The property shares its southern boundary with Reyna Silver's Medicine Springs Ag-Pb-Zn (silver-lead-zinc) carbonate replacement (CRD) project and had seen limited modern exploration in over a century until Ridgeline staked the property in 2023. The primary target at Big Blue is porphyry skarn Cu-Au plus or minus Ag-Mo (silver-molybdenum) mineralization, with potential to discover polymetallic, carbonate replacement deposit (CRD) style mineralization as the system zones outward over six kilometres of untested strike toward the Medicine Springs project. Big Blue is 100 per cent owned by the company and comprised a total of 50 square km of highly prospective exploration ground that will benefit from Ridgeline's systematic approach to discovery.

QA/QC (quality assurance/quality control) procedures

Samples are submitted to American Assay Laboratories (AAL) of Sparks, Nev., which is a certified and accredited laboratory, independent of the company. Independent check samples are sent to Paragon Geochemical Labs (PAL) of Sparks, Nev. Samples are prepared using industry-standard prep methods and analyzed using FA-PB30-ICP (Au; 30 g fire assay) and ICP-5AM48 (48-element suite; 0.5 g five-acid digestion/ICP-MS) methods. AAL also undertakes its own internal coarse and pulp duplicate analysis to ensure proper sample preparation and equipment calibration. Ridgeline's QA/QC program includes regular insertion of CRM standards, duplicates and blanks into the sample stream.

Technical information contained in this news release has been prepared under the supervision of, and approved by, Michael T. Harp, CPG, the company's vice-president, exploration. Mr. Harp is a qualified person under National Instrument 43-101 -- Standards of Disclosure for Mineral Projects.

Appointment of Connect 4 Marketing

The company announces that, subject to regulatory approval, has signed on March 7, 2025, and effective that date, an agreement to engage the services of Connect 4 Marketing Ltd. to provide digital marketing and consultancy services to grow investor awareness of the company using on-line advertising, for a one-time set-up fee of $5,100 plus $1,950 per month for an initial three-month term with month to month hereafter. Connect 4 is at arm's length to Ridgeline minerals, has no relationship with the company except under this contract of services and no ownership interest in the company. Connect 4 was founded by Louis-Carlos Vargas Rocheleau, (who owns 100 per cent) in September, 2022, and is registered in Brossard, Que., at 5505 Blvd., Du Quartier, 702, J4Z 0R9. Connect 4 operates from 407 McGill St., Bureau 501, Montreal, Que., H2Y 2G3.

About Ridgeline Minerals Corp.

Ridgeline Minerals is a discovery focused precious and base metal explorer with a proven management team and a 200-square-kilometre exploration portfolio across seven projects in Nevada, United States. The company is a hybrid explorer with a mix of 100-per-cent-owned exploration assets (Big Blue, Atlas, Bell Creek and Coyote) as well as two earn-in exploration agreements with Nevada Gold Mines at its Swift and Black Ridge projects and a third earn-in with South32 at its Selena project.

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