Vancouver, British Columbia–(Newsfile Corp. – May 25, 2021) – Riverside Resources Inc. (TSXV: RRI) (OTCQB: RVSDF) (FSE: 5YY) (“Riverside” or the “Company”) is pleased to report the latest field results from Riverside funded generative exploration work at La Silla Project (the “Project”), Sinaloa, Mexico. Riverside received rock chip sample results with values up to 6.1 g/t Au and identified over 2km of total vein extensions from three vein systems on the property during this spring field program. Riverside’s mineral exploration work has highlighted two main concession block areas of interest with two shallow historical mine areas (El Roble and Ciruelos) that have little drilling near the old workings and good discovery potential. Both of these targets show outcropping mineralized structures of veins and stockwork with new high-grade gold samples (see Table 1). Previous sampling programs by Riverside also returned high-grade with up to 19.9 g/t Au and 200 g/t Ag (see press release of June, 2018).