GRSL.V · CNW · 2026-04-23 11:59:00

GR Silver Reports High-Grade Silver Results from the 20,000 m Step-Out Drilling Campaign at San Marcial: 15.6 m at 351 g/t Ag, including 2.5 m at 1,395 g/t Ag, in SMS26-03 - PR Newswire Canada

Drill Results

VANCOUVER, BC, April 23, 2026 /CNW/ - GR Silver Mining Ltd. ("GR Silver Mining" or the "Company") (TSXV: GRSL) (OTCQX: GRSLF) (FRANKFURT: GPE) is pleased to announce results from drill holes SMS26-01 and SMS26-03 in the SE Area of San Marcial that confirm the continuity of high-grade silver mineralization up to 500 metres down dip from surface.

Figure 1: Location of San Marcial Step-Out Drill Holes SMS26-01, SMS26-03 and SMS25-13A (CNW Group/GR Silver Mining Ltd.)

Figure 2: Cross Section (see Figure 1) – SMS26-01 and SMS26-03 in Relation to SMS23-01 and SMS25-09. (CNW Group/GR Silver Mining Ltd.)

Figure 3: Drill Core Photo Illustration - SMS26-01 High-Grade Samples (CNW Group/GR Silver Mining Ltd.)

Figure 4: Drill Core Photo Illustration - SMS26-03 High-Grade Samples (CNW Group/GR Silver Mining Ltd.)

Figure 5: Longitudinal Section – Location SMS25-11 and SMS25-12 – Potential Resource Expansion (CNW Group/GR Silver Mining Ltd.)

Table 3: 2026 San Marcial SE Area Step-Out Drill Program – Drill Hole Details (CNW Group/GR Silver Mining Ltd.)

Table 4: 2025 San Marcial Step-Out Drill Program – Drill Hole Details (CNW Group/GR Silver Mining Ltd.)

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