Vancouver, BC – GR Silver Mining Ltd. (TSXV: GRSL, FRANKFURT: GPE, OTCQB: GRSLF) (“GR Silver
Mining” or the “ Company”) – is pleased to announce that it has made the final option payment of
CDN$2.5 M and issued 1,500,000 common shares to SSR Mining Ltd., as required under the San Marcial
option agreement dated April 17, 2018 (refer to News Release dated May 7, 2018). SSR Mining’s
subsidiary, Silver Standard México, S.A. de C.V., has also been granted a 0.75% net smelter returns
royalty (“NSR”). The Company has a buy-back right on the NSR that can be exercised at any time by
payment of CDN$1.25 M. As required by applicable securities law and the policies of the TSX Venture
Exchange, the shares will be subject to a hold period expiring September 6, 2021.