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GR Silver Mining Completes Second Option Payment under San Marcial Option Agreement

Mergers & Acquisitions Property Options & Staking

GR Silver Mining Completes Second Option

Payment under San Marcial Option Agreement

VANCOUVER

,

May 1, 2020

/CNW/ -

GR Silver Mining Ltd. (TSXV: GRSL,

FRANKFURT

: GPE,

OTCQB: GLYXF) ("GR Silver Mining" or the "Company")

– announces that it has now made the

second option payment as required under the San Marcial option agreement dated

April 17, 2018

(refer to

May 7, 2018

press release for further details), which included, in part, the issuance of

750,000 common shares to the optionor. As required by applicable securities law and the policies of

the TSX Venture Exchange, the shares are subject to a hold period expiring

September 2, 2020

.

About GR Silver Mining Ltd

.

GR Silver Mining Ltd. (GRSL.V) is a

Mexico

-focused company engaged in cost-effective silver-gold

resource expansion on its key assets which lie on the eastern edge of the Rosario Mining District,

Sinaloa, Mexico

.

PLOMOSAS SILVER PROJECT

GR Silver Mining owns 100% of the Plomosas Silver Project located near the historic mining village

of

La Rastra

, within the Rosario Mining District. The Project is a past-producing asset where only

one mine, the Plomosas silver-gold-lead-zinc underground mine, operated from 1986 to 2001. The

Project has an 8,515-hectare property position and is strategically located within 5 km of the San

Marcial Silver Project in the southeast of Sinaloa State,

Mexico

. The Plomosas Project comprises six

areas with an average of 100 surface and underground drill holes in each area, geophysical and

geochemical data covering most of the concession, and the delineation of 16 exploration/drilling

targets.

The 100% owned assets include all facilities and infrastructure including: access roads, surface

rights agreement, water use permit,

8,000 m

of underground workings, water access, 60 km - 33

KV power line, offices, shops, 120-person camp, infirmary, warehouses and assay lab representing

approximately

US$30m

of previous capital investments. The previous owners invested approximately

US$18 million

in exploration.

The silver and gold mineralization on this Project display the alteration, textures, mineralogy and

deposit geometry characteristics of a low sulphidation epithermal silver-gold-base metal vein/breccia

mineralized system. Previous exploration was focused on Pb-Zn-Ag-Au polymetallic shallow

mineralization, hosted in NW-SE structures in the vicinity of the Plomosas mine. The E-W portion of

the mineralization and extensions for the main N-S Plomosas fault remains under-explored. The

Plomosas Silver Project has more than 500 recent and historical drill holes in six areas – Plomosas

Mine,

San Juan

,

La Colorada

,

Yecora

,

San Francisco

and El Saltito. These drill holes represent an

extensive database allowing the Company to advance towards resource estimation and potential

project development in the near future.

SAN MARCIAL PROJECT

San Marcial is a near-surface, high-grade silver-lead-zinc open pit-amenable project. GR Silver

Mining is currently expanding its NI 43-101 resource estimate at the San Marcial Project, which

contains 36 Moz AgEq (Indicated) + 11 Moz AgEq (Inferred), by defining new high-grade gold and

silver targets along the project's 6 km mineralized trend. GR Silver Mining is the first company to

conduct exploration at San Marcial in over 10 years. The NI 43-101 resource estimate (San Marcial

Project – Resource Estimation and Technical Report) was completed by WSP Canada Inc. on

March 26, 2019

.

Plomosas and San Marcial collectively represent a geological setting resembling the multimillion-

ounce San Dimas Mining District which has historically produced more than 620 Moz silver and 11

Moz gold over a period of more than 100 years.

OTHER PROJECTS

GR Silver Mining's other projects are situated in areas attractive for future discoveries and

development in the same vicinity of Plomosas and San Marcial in the Rosario Mining District.

Mr.

Marcio Fonseca

P. Geo, President & CEO

GR Silver Mining Ltd.

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

the policies of the TSX Venture Exchange) accept responsibility for the adequacy or accuracy of

this press release.

Disclaimer for Forward-Looking Information

This press release contains forward-looking statements 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.

SOURCE

GR Silver Mining Ltd.

View original content to download multimedia:

http://www.newswire.ca/en/releases/archive/May2020/01/c0802.html

%SEDAR: 00040149E

For further information:

+1 (604) 202 3155, Email: [email protected]

CO: GR Silver Mining Ltd.

CNW 07:30e 01-MAY-20