GRSL.V · 2023-01-16 12:00:00

GR Silver Mining Drills New High-grade Ag Intervals at San Marcial SE Area: 82.7 m at 121 g/t Ag, including 0.4 m at 3,386 g/t Ag (SMS22- 22), and 5.6 m at 1,223 g/t Ag, including 0.3 m at 26,150 g/t Ag (SMS22-09)

Drill Results

GR Silver Mining Drills New High-grade Ag

Intervals at San Marcial SE Area: 82.7 m at 121

g/t Ag, including 0.4 m at 3,386 g/t Ag (SMS22-

22), and 5.6 m at 1,223 g/t Ag, including 0.3 m

at 26,150 g/t Ag (SMS22-09)

VANCOUVER, BC

Jan. 16, 2023

/CNW/ -

GR Silver Mining Ltd.

("GR Silver Mining" or the

"Company") (TSXV: GRSL) (OTCQB: GRSLF) (FRANKFURT: GPE) – is pleased to announce

additional surface drilling success in the new high-grade Southeast Area ("SE Area") silver (Ag)

discovery within the San Marcial Area, at the Company's wholly-owned Plomosas Project, in

Sinaloa, Mexico

. The six holes represent extensions along strike or down dip, creating the potential

to expand silver mineralization boundaries. Each of the SE Area holes add attractive silver results

and key geological information to expand the current Ag mineralization model.

The Company has now completed all holes planned to be incorporated into the 3D geological model,

with the updated resource estimation expected to be released in Q1|2023. A total of 75 GR Silver

Mining drill holes (

10,500 m

) will be added to the 52 holes used in the 2019 NI 43-101 San Marcial

mineral resource estimation.

Highlights from the latest drilling results at San Marcial

SMS22-09: Resource Area – down dip/plunge extension in the previous resource area

5.6 m

at 1,223 g/t Ag, 1.4% Pb and 1.2% Zn

including

0.3 m

at 26,150 g/t Ag, 30.0% Pb and 18.6% Zn

SMS22-09 intersected mineralization textures similar to those in SMS22-10 at and below the

San Marcial Breccia. At further depth, the hole encountered a

5.6 m

zone of veining with high-

grade Ag-Pb-Zn mineralization, including the highest-grade silver result to date from San Marcial

– 26,150 g/t Ag over

0.3 m

SMS22-22: SE Area - down dip extension from hole SMS22-16

82.7 m

at 121 g/t Ag

including

0.4 m

at 3,386 g/t Ag

and

1.1 m

at 1,391 g/t Ag

SMS22-22 intersected mineralization similar to the previously announced SMS22-16

mineralization in the SE Area (Figure 1). SMS22-16 also contained multiple high-grade intervals,

hosted in a wide zone of

123.1 m

at 112 g/t Ag, with a predominance of Ag-rich hydrothermal

breccias and stockworks

SMS22-23: SE Area –

80 m

step-out drilling from hole SMS22-22

112.6 m

at 61 g/t Ag

including

0.9 m

at 1,055 g/t Ag

and

0.6 m

at 14.3 g/t Au

SMS22-23 was drilled outside the NE-trending corridor that hosts the SE Area discovery

(Figure 1). It was also drilled

60 m

down dip from SMS22-13 which did not report significant

mineralization closer to surface. However, SMS22-23 has shown that the same style of Ag

mineralization in the SE Area can be found outside the NE trending corridor, in subparallel

structural corridors similar to hole SMS22-10. This is a significant revelation that opens up the

exploration potential further to the southeast of the SE Area discovery, along the target contact

zone and in other subparallel prospective structures. SMS22-23 also has a narrow high-grade

gold zone –

0.6 m

at 14.3 g/t Au – in the vicinity of the gold zone previously reported for

SMS22-20 –

1.0 m

at 31.3 g/t Au - opening up the exploration potential for narrow high-grade

gold veins in the SE Area.

GR Silver Mining Chair and CEO,

Eric Zaunscherb

comments

"As we close off the San Marcial

database for the resource estimation scheduled this quarter, we are excited by the potential

contribution of the new SE Area discovery. These most recent drill results contribute to our

understanding of the mineralization at the SE Area as well as the original San Marcial Resource

Area. San Marcial continues to deliver high-grade precious metal intervals within broad, well-

mineralized masses. The discovery of high-grade Ag and Au mineralization outside, and to the SE, of

the known structural corridor at the SE Area is highly encouraging. After delivery of the updated

mineral resource, we will outline our strategic plan for 2023 and one can expect that the extension of

exploration along this emerging and highly prospective SE trend will feature prominently."

Figure 1: San Marcial and SE Area Longitudinal Section – Pierce Points (Grade x Thickness) (CNW

Group/GR Silver Mining Ltd.)

Drilling Program Resource Area and Southeast Area

All resource expansion drilling by GR Silver Mining, in the Resource Area and the new SE Area

discovery, has now been completed, and all assays received. The 2022 program was the first

drilling to be undertaken in the SE Area, and together with the Company's drilling programs between

2019-2021, represents successful completion of the program to expand the 2019 NI 43-101 mineral

resource, also resulting in a discovery outside the previously reported San Marcial Resource Area.

A description of each drill hole and results are as follows:

SMS22-07

was designed to test for extensions to high-grade Au in the vicinity of the

1 m

at 204.6

g/t Au intercepted in SM-19-01 (Figure 1). The drill hole is located at the NW end of the Resource

Area where surface mapping indicates that NE-trending structures could have an association with Au

mineralization. SMS22-07 intersected Au associated with Ag with values up to 0.40 g/t Au over

0.2

in upper levels. Further work is required to understand the controls on high-grade Au at the NW

end of the Resource Area. SMS22-07 also confirmed a NW-trending structure parallel to, and

below, the San Marcial Breccia that returned 349 g/t Ag and 0.62 g/t Au over

0.4 m

(Table 1) on the

margins of an andesitic dyke.

SMS22-09

intersected similar textures to those in the SMS22-10 SE Area discovery hole on the

contact of the San Marcial Breccia, down dip from high-grade mineralization in the Resource Area.

However, at depth below that contact, the hole intersected a narrow, very high-grade vein containing

0.3 m

at 26,150 g/t Ag with >30% Pb and 18.6% Zn. This E-W trending vein has been intercepted

only in one other drill hole, SMS22-17, and opens up a new exploration target at depth that cross

cuts the volcano-sedimentary unit.

SMS22-21 & SMS22-24

were planned to test mineralization at similar elevation to the mineralization

intersected in the SE Area - between

625 m

and

550 m

elevation – down dip from the Resource

Area. Drill hole SMS22-21 intersected similar breccias in chloritic facies of the volcano-sedimentary

unit, but reduced Ag mineralization. SMS22-24, located approximately

100 m

NW of SMS22-21,

intersected the San Marcial Breccia but not the chloritic facies of the volcano-sedimentary unit

indicating significant differences in control of the mineralization between the SE Area and the

Resource Area, possibly related to N-S faults.

SMS22-22

was planned after successes with SMS22-16 and SMS22-12, which support continuity of

high-grade mineralization down dip from SMS22-10 in the SE Area, to provide additional down dip

extension to the mineralization and lateral continuity to SMS22-12. The

82.7 m

at 121 g/t Ag

intercept confirms the continuity and consistency of the mineralization with similar textures and

similar high-grade (>1,000 g/t Ag) peaks within the broad zone of Ag mineralization.

SMS22-23

was drilled outside, and to the south of, the NE-trending (fault-bounded) corridor that

hosts the SE Area discovery (Figure 2). It was also drilled

60m

down dip from SMS22-13 which did

not report significant mineralization closer to surface (see

News Release dated

September 7, 2022

However, SMS22-23 has shown that the same style of Ag mineralization in the SE Area can be

found outside the NE trending corridor, in subparallel structural corridors similar to hole SMS22-10.

This is a significant revelation that opens up the exploration potential further to the southeast of the

SE Area discovery, along the target contact zone and in other subparallel prospective structures.

SMS22-23 also has a narrow high-grade gold zone –

0.6 m

at 14.3 g/t Au – in the vicinity of the gold

zone previously reported for SMS22-20 –

1.0 m

at 31.3 g/t Au - opening up the exploration potential

for narrow high-grade gold veins in the SE Area.

The Company is now focused on completion of the 3D geological model and mineral resource

estimation for the San Marcial and SE Areas, which will be combined with updated mineral resource

estimates for the nearby Plomosas Mine Area and the San Juan-La Colorada Area into an

integrated mineral resource estimate scheduled for completion in Q1|2023.

Figure 2: Extension of SMS22-23 to South of San Marcial and SE Area 3D Model (CNW Group/GR

Silver Mining Ltd.)

Table 1: San Marcial SE Area – Latest Results Highlights

Drill Hole

From (m)

To (m)

Apparent

width

(m)

Ag g/t

Au g/t

Pb %

Zn %

SMS22-07

133.0

139.7

6.7

0.01

0.3

0.9

236.2

236.6

0.4

349

0.62

SMS22-09

299.3

304.9

5.6

1,223

0.01

1.4

1.2

including

303.1

303.4

0.3

26,150

0.02

30.0

18.6

SMS22-21

253.2

279.7

26.5

0.01

0.2

0.3

including

253.2

258.3

5.2

0.01

0.1

including

257.7

258.3

0.6

288

0.02

0.4

0.7

SMS22-22

174.2

256.9

82.7

121

0.06

0.1

0.3

including

174.2

184.4

10.2

503

0.07

0.2

0.6

including

174.2

176.2

2.0

1,202

0.05

0.4

1.0

including

175.5

175.9

0.4

3,386

0.03

0.2

0.9

and

183.3

184.4

1.1

1,391

0.17

0.8

2.4

and

215.3

217.1

1.8

401

0.07

0.1

0.5

SMS22-23

156.4

269.0

112.6

0.09

0.1

0.2

including

156.4

179.6

23.2

124

0.01

including

156.4

157.3

0.9

1,055

0.03

0.1

and

223.7

231.5

7.8

104

0.57

0.2

and

252.5

256.1

3.6

102

0.20

0.4

1.5

288.9

289.5

0.6

14.30

0.1

SMS22-24

285.4

286.8

1.4

0.03

0.3

Numbers may be rounded. Results are uncut and undiluted. True width not estimated as the Company does not have sufficient data from the new

mineralized zones to determine the true widths of the drill hole intervals with any confidence. "na" = no significant result.

Table 2: 2022 San Marcial Drill Program – SE Area Latest Drill Hole Details

Drill Hole

East (m)

North (m)

RL (m)

Dip (

)

Azimuth

(

)

Depth (m)

Results

Status

SMS22-07

450783

2546102

908

-45

170

270

Complete

SMS22-09

451474

2546017

721

-55

240

343.35

Complete

SMS22-21

451376

2545957

761

-55

245

342.5

Complete

SMS22-22

451501

2545921

696

-55

202

288.8

Complete

SMS22-23

451560

2545862

714

-60

210

296.9

Complete

SMS22-24

451313

2546012

799

-55

250

324.5

Complete

WGS84 Datum

QA/QC Procedures

The Company has implemented QA/QC procedures which include insertion of blank, duplicate and

standard samples in all sample lots sent to SGS de México, S.A. de C.V. laboratory facilities in

Durango, Mexico

, for sample preparation and assaying. For every sample with results above Ag

>100 ppm (over limits), these samples are submitted directly by SGS de

Mexico

to SGS Canada

Inc. at

Burnaby, BC

. The analytical methods are four acid Digest and Inductively Coupled Plasma

Optical Emission Spectrometry with Lead Fusion Fire Assay with gravimetric finish for silver above

over limits. For gold assays the analytical methods are Lead Fusion and Atomic Absorption

Spectrometry Lead Fusion Fire Assay and gravimetric finish for gold above over limits (>10 ppm).

Qualified Person

The Qualified Person under National Instrument 43-101 Standards of Disclosure for Mineral Projects

for this news release is

Marcio Fonseca

, P. Geo., President & COO for GR Silver Mining, who has

reviewed and approved its contents.

About GR Silver Mining Ltd

GR Silver Mining is a Canadian-based,

Mexico

-focused junior mineral exploration company engaged

in cost-effective silver-gold resource expansion on its 100%-owned assets, located on the eastern

edge of the Rosario Mining District, in the southeast of Sinaloa State,

Mexico

. GR Silver Mining

controls 100% of two past producer precious metal underground and open pit mines, within the

expanded Plomosas Project, which includes the integrated San Marcial Area and

La Trinidad

acquisition. In conjunction with a portfolio of early to advanced stage exploration targets, the

Company holds 734 km

of concessions containing several structural corridors totaling over 75 km in

strike length.

GR Silver Mining Ltd.

Eric Zaunscherb

Chair & CEO

Cautionary Statement Regarding Forward-Looking Information

This press release contains "forward-looking statements" within the meaning of applicable

Canadian securities legislation and information that are based on the beliefs of management and

reflect the Company's current expectations. When used in this press release, the words "estimate",

"project", "belief", "anticipate", "intend", "expect", "plan", "predict", "may" or "should" and the

negative of these words or such variations thereon or comparable terminology are intended to

identify forward-looking statements and information.

Such statements and information reflect the current view of the Company. Risks and uncertainties

may cause actual results to differ materially from those contemplated in those forward-looking

statements and information. By their nature, forward-looking statements involve known and

unknown risks, uncertainties and other factors which may cause our actual results, performance or

achievements, or other future events, to be materially different from any future results,

performance or achievements expressed or implied by such forward-looking statements.

Neither the TSX Venture Exchange nor its Regulation Services 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.

SOURCE

GR Silver Mining Ltd.

View original content to download multimedia:

http://www.newswire.ca/en/releases/archive/January2023/16/c7302.html

%SEDAR: 00040149E

For further information:

Brenda Dayton, VP Corporate Communications, Telephone:

+1.604.417.7952, Email: [email protected]

CO: GR Silver Mining Ltd.

CNW 06:15e 16-JAN-23

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