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Ridgeline Minerals Reports Additional Assay Results for the Chinchilla Sulfide CRD Discovery at the Selena Project

Drill Results

Ridgeline Minerals Reports Additional Assay

Results for the Chinchilla Sulfide CRD

Discovery at the Selena Project

Vancouver, British Columbia--(Newsfile Corp. - March 16, 2026) - Ridgeline Minerals Corp. (TSXV:

RDG) (OTCQB: RDGMF) (FSE: 0GC0) ("

Ridgeline

" or the "

Company

") is pleased to announce

additional assay results from the Chinchilla Sulfide CRD discovery at the Selena project ("Selena" or

"Project") in Nevada (

Figure 1

).

Core hole SE25-054 was a 700 meter ("m")

step-out northeast of discovery hole SE25-053 (see

December 18, 2025 press release

HERE

) and intersected an "upper" oxide mineralized intercept of

3.1m grading

86.5 g/t silver ("Ag"), 0.3% zinc ("Zn"), 3.8% lead ("Pb), 2.9 g/t gold ("Au"), and

0.07% antimony ("Sb") (353.1 g/t AgEq or 14.7% ZnEq)

starting at 639m downhole (

Table 1

&

Figure 2

). The drillhole was paused at a depth of 916m in mid-December due to winter weather

constraints and the Company anticipates re-entering and continuing the hole in the spring to a target

depth of up to 1,200m to ensure the hole fully tests the MT target anomaly (Figure 2).

Chad Peters, Ridgeline's President, CEO & Director commented, "Our 2025 drill program has

intersected high-grade CRD mineralization in 2 of 3 holes with individual samples grading up to 379

g/t silver, 27% zinc and 2.9 g/t gold. We are very encouraged with the results of the first phase of

drilling, and we anticipate a big year ahead now that we have a stronger understanding of the structural

controls on mineralization at the Chinchilla Sulfide discovery. Drill planning is in progress, and we

anticipate our fully funded 2026 drill program to begin in May."

Chinchilla Sulfide Zone - Discovery Highlights

SE25-054: 3.1m grading 86.5 g/t Ag, 0.3% Zn, 3.8% Pb, 2.9 g/t Au, and 0.07% Sb (353.1 g/t AgEq

or 14.7% ZnEq)

starting at 639m downhole, true thickness unknown (

Figure 2

)

Hole 54 intersected the faulted and mineralized lower section of what equates to the same host

horizon as the Chinchilla Oxide zone that outcrops ~2.5km to the east (See long-section A-A'

HERE

)

Drilling did not fully test the same lower Chinchilla Sulfide horizon that was intersected in hole

SE25-053. The hole was paused in prospective carbonate host rocks and the Company

intends on completing additional geophysics this spring followed by deepening of hole 54

during the 2026 drill program

SE25-053: 1.1m grading 60.1 g/t Ag, 27.1% Zn, 0.7% Pb, 1.5 g/t Au, 0.4% Cu, and 0.03% Sb

(766.4 g/t AgEq or 31.9% ZnEq)

starting at 943m downhole, true thickness unknown (

Table 1

&

Figure

2

)

And:

17.4 meters grading 35.6 g/t Ag, 6.0% Zn, 0.5% Pb, 0.2 g/t Au, 0.1% Cu, and 0.1% Sb

(219.9 g/t AgEq or 9.2% ZnEq)

(

Figure 2

&

Picture 1

)

Including: 8.6 meters grading 21.1 g/t Ag, 10.4% Zn, 0.3% Pb, 0.1 g/t Au, 0.1% Cu,

and 0.1% Sb (273.6 g/t AgEq or 11.4% ZnEq)

And:

8.7 meters grading 13.9 g/t Ag, 7.0% Zn, 0.3% Pb, 0.1 g/t Au, 0.1% Cu, and 0.01% Sb

(175.5 g/t AgEq or 7.3% ZnEq)

(

Picture 2

)

Borehole Electromagnetic Survey

The Company intends on completing two borehole electromagnetic (BHEM) surveys at the start of

the 2026 drill campaign on hole SE25-053 and SE25-054

The BHEM survey will detect conductive anomalies such as the massive sulfide zones

intercepted in SE25-053 and can detect conductive anomalies up to 250m outside of the

borehole, which will improve drill targeting and geologic modeling within the survey areas

This method is especially effective for detecting massive sulfide deposits and is

commonly used in CRD, VMS and magmatic nickel sulfide exploration

Figure 1

: Plan view map showing the Chinchilla Sulfide CRD discovery in hole SE25-053 & SE25-054

within a kilometer-scale MT anomaly (coloured contours) that outlines the Chinchilla Sulfide target

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/7298/288636_8a65846694e94a55_001full.jpg

Table 1

: Table of significant drill assays from 2025 drilling at the Chinchilla Sulfide Discovery

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/7298/288636_8a65846694e94a55_002full.jpg

For a 2025 drilling collar table click

HERE

Figure 2

: X-Section B-B' showing high-grade CRD intercepts from SE25-054 and SE25-053 at the

Chinchilla Sulfide discovery. Note SE25-054 tested the upper horizon but did not fully test the lower

horizon

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/7298/288636_8a65846694e94a55_003full.jpg

Click

HERE

to view Chinchilla Sulfide Long-Section A-A'

Earn-In Terms

- The Project is currently operated by Ridgeline under Phase 1 of an earn-in agreement

with a wholly owned subsidiary of South32 Limited ("South32"), where South32 may earn up to an 80%

interest in the Project by satisfying all commitments under the earn-in agreement (see August 22, 2024

news release

HERE

). South32 retains the right to earn an initial 60% interest in the Selena project by

funding a minimum of US$10 million in qualifying work expenditures on the Project over an initial five-

year term, following which South32 will have a further option to increase its interest in the Project to a

total of 80% by funding an additional US$10 million in qualifying work expenditures (for an aggregate

spend of US$20 million) over an additional three-year term. If South32 wishes to exercise the Phase 2

option, it must arrange for and provide draft definitive documentation in respect of a debt facility from

which (if executed) Ridgeline may draw on to sufficiently fund Ridgeline's share of costs (20% pro-rata)

associated with development of a mine at Selena through to commercial production.

QA/QC Procedures

Samples are submitted to American Assay Laboratories (AAL) of Sparks, Nevada, which is a certified

and accredited laboratory, independent of the Company. Independent check samples are shipped to

Paragon Geochemical Labs (PAL) of Sparks, Nevada.

Samples are prepared using industry-standard

prep methods and analysed using FA-PB30-ICP (Au; 30g fire assay) and ICP-5AM48 (48 element

Suite; 0.5g 5-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

with a stringent review of all results completed by the Company's Qualified Person, Michael T. Harp,

Vice President, Exploration.

The 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" as defined under National Instrument 43-101 -

Standards of Disclosure for Mineral

Projects

.

Selena Project

Selena is located in White Pine County, Nevada, approximately 64 kilometers ("km") north of the town of

Ely, NV. The Project is currently being operated by Ridgeline under Phase 1 of an earn-in agreement

with a wholly owned subsidiary of South32 Limited ("South32") and shares a property boundary with the

Butte Valley project, a $33M earn-in agreement between Freeport-McMoRan and the underlying owner,

Falcon Butte Minerals. The Project is comprised of 39 square kilometers of highly prospective

exploration ground including Ridgeline's shallow-oxide Ag-Au ± Pb-Zn Chinchilla Oxide and deeper

Chinchilla Sulfide discoveries. Subsequent drilling has continued to highlight the potential for high-grade

CRD type mineralization (Ag-Zn-Pb-Au ± Cu-Sb-W) between Chinchilla Oxide and Freeport-McMoRan's

Butte Valley Cu-Au-Ag-Zn porphyry located directly west of the property.

(View the Selena VRIFY Deck

Here)

.

For additional information regarding the South32 earn-in agreement terms view the August 22,

2024 news release

HERE

.

About Ridgeline Minerals Corp.

Ridgeline Minerals is a discovery focused precious and base metal explorer with a proven management

team and a 200 km

2

exploration portfolio across seven projects in Nevada, USA. The Company is a

hybrid explorer with a mix of 100%-owned exploration assets (Big Blue, Atlas, Bell Creek & 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. More information about Ridgeline can be

found at

www.ridgelineminerals.com

.

On behalf of the Board

"Chad Peters"

President & CEO

Further Information:

Chad Peters, P.Geo.

President, CEO & Director

Ridgeline Minerals Corp.

+1 775 304 9773

[email protected]

Neither the TSX Venture Exchange nor its Regulation Service Provider (as that term is defined

in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or

accuracy of this press release

Cautionary Note regarding Forward-Looking Statements

Statements contained in this press release that are not historical facts are "forward-looking

information" or "forward-looking statements" (collectively, "Forward-Looking Information") within the

meaning of applicable Canadian securities legislation and the United States Private Securities

Litigation Reform Act of 1995. Forward-Looking Information includes, but is not limited to, the

anticipated benefits of the Earn-In Agreement and the transaction contemplated thereby. The words

"potential", "anticipate", "meaningful", "discovery", "forecast", "believe", "estimate", "expect", "may",

"will", "project", "plan", "historical", "historic" and similar expressions are intended to be among the

statements that identify Forward-Looking Information. Forward-Looking Information involves known

and unknown risks, uncertainties and other factors which may cause the actual results to be materially

different from any future results expressed or implied by the Forward-Looking Information. In preparing

the Forward-Looking Information in this news release, Ridgeline has applied several material

assumptions, including, but not limited to, assumptions that TSX Venture Exchange approval will be

granted in a timely manner subject only to standard conditions; the current objectives concerning the

Project can be achieved and that its other corporate activities will proceed as expected; that general

business and economic conditions will not change in a materially adverse manner; and that all

requisite information will be available in a timely manner. Forward-Looking Information involves

known and unknown risks, uncertainties and other factors which may cause the actual results,

performance, or achievements of Ridgeline to be materially different from any future results,

performance or achievements expressed or implied by the Forward-Looking Information. Such risks

and other factors include, among others, risks related to dependence on key personnel; risks related

to unforeseen delays; risks related to historical data that has not been verified by the Company; as

well as those factors discussed in Ridgeline's public disclosure record. Although Ridgeline has

attempted to identify important factors that could affect Ridgeline and may cause actual actions,

events, or results to differ materially from those described in Forward-Looking Information, there may

be other factors that cause actions, events or results not to be as anticipated, estimated or intended.

There can be no assurance that Forward-Looking Information will prove to be accurate, as actual

results and future events could differ materially from those anticipated in such statements.

Accordingly, readers should not place undue reliance on Forward-Looking Information. Except as

required by law, Ridgeline does not assume any obligation to release publicly any revisions to

Forward-Looking Information contained in this news release to reflect events or circumstances after

the date hereof or to reflect the occurrence of unanticipated events.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/288636