DynaResource, Inc., of Irving, Texas, and DynaResource de México SA de C.V., the 100% owner of the San Jose de Gracia high grade gold project, located in the County of Sinaloa de Leyva, State of Sinaloa, México, issue the following news release dated May 17, 2019, in response to a news release issued by Goldgroup Mining Inc. dated May 14, 2019.