GR Silver Mining Ltd. (TSX-V: GRSL) (OTCQB: GRSLF) (FRANKFURT: GPE) –announces that it has closed its non-brokered private placement previously announced on May 8, 2025, and increased on May 14, 2025.  Under the Offering, the Company has issued 14,190,000 units for gross proceeds of $1,844,700.

In connection with the Offering, the Company paid a total of $104,442 and issued a total of 803,400 warrants as finder’s fees.  Each finder’s warrant is exercisable for one common share at a price of $0.19 for two years.

All securities issued under the Offering are subject to a hold period expiring September 28, 2025, in accordance with applicable securities laws and the policies of the TSX Venture Exchange.

This news release does not constitute an offer to sell or a solicitation of an offer to buy any of the securities in the United States of America. The securities have not been and will not be registered under the United States Securities Act of 1933 (the “1933 Act”) or any state securities laws and may not be offered or sold within the United States or to U.S. Persons (as defined in the 1933 Act) unless registered under the 1933 Act and applicable state securities laws, or an exemption from such registration is available.

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 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 in the pursuit for resource expansion at the Plomosas Project.