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

About this update from Ridgeline Minerals Corp

Ridgeline Minerals Reports Additional Assay Results for the Chinchilla Sulfide CRD Discovery at the Selena ProjectVancouver, 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 HighlightsSE25-054: 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 programSE25-053: 1.1m grad...

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