VANCOUVER, BC , May 20, 2026 /CNW/ - GRSilverMiningLtd. ("GRSilverMining"orthe"Company") (TSXV: GRSL) (OTCQX: GRSLF) (FRANKFURT: GPE) will be a hosting a Celebration of Life for Founder, Director, former President and Chief Executive Officer, friend, and mentor Márcio Fonseca who passed away suddenly on March 25, 2026. The event will be held the afternoon of May 28 in Vancouver, British Columbia, from 1:30 to 3:30 pm PT. To assist with planning, friends and colleagues are asked to RSVP by May 24. An "In Memoriam" has been prepared to honour Márcio and may be found on the GR Silver Mining website at this link.

Márcio had a wonderful legacy of giving generously. We will honour Márcio by continuing that legacy and ask his many friends, colleagues, and fellow industry participants to honour him as well by Donating Now to the Marcio Bastos Fonseca Charitable Giving Fund at the Vancouver Foundation.

About GR S i lver Mining Ltd.
GR Silver Mining is a Canadian-based, Mexico-focused 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 the Plomosas Project, including the former Plomosas underground mine and wide, high-grade silver mineralized zones at the San Marcial Area. Recent discoveries in the 78 km² of highly prospective, advanced-stage exploration concessions position the Company well for resource expansion at the Plomosas Project.

GR Silver Mining Ltd.
Eric Zaunscherb, Executive Chair, Interim President & Interim CEO

Cautionary Sta t ement Regarding Forward-Looking Informa t i o n
This p ress release contains "forward-looking state m ents" w ithin t he meaning o f applicable Canadian securiti e s legi s lation and information that are based on the beliefs of management and r e flect the Company's current expectations. Wh e n used in this press release, the words "estimate", "proje c t", "belief", " a nticipate", "intend", "ex p ect", "plan", "predict", "may" or "should" a nd t h e negative of these words or such variations th e reon or comparable t erminology are intended to identify forward-looking statements and inf o rmation. Such statements and i nformation reflec t th e c u rren t vie w o f th e Company . Risk s and u ncertainti e s may ca u se a ctual results t o dif f er materially fr o m those con t emplated i n t hose forwa r d-loo k ing stat e ments and informati o n. B y their nat u re, f o rward-loo k ing statements i n volve known a nd u nknown r i sks, uncertainties and oth e r fa c tors which m a y ca u se o u r a ctu a l results, performance or achievements, or other fut u re events, to be materially different from a ny future r e sults, pe r f o rmance or achievem e nts expressed or implied by such forwa r d-lookin g statements.

Neither the T SX Venture Exchange nor its Regulation Servi c es Provider ( a s that term is defined in the policies of the T SX Venture Exchange) accepts responsibility for the adequacy or accuracy o f this press release.

SOURCE GR Silver Mining Ltd.