Riverside Resources Inc. announced that it has signed an Option Agreement to acquire a 100% undivided right, title and interest in the Union Mine, within the Union District of Sonora, Mexico. This district has historically produced high-grade zinc, gold and silver in carbonate replacement deposits, which is a significant style of deposit forming major mines in northern Mexico and the southwest USA. The Union Mine historically produced ~50,000 ounces of gold from the upper oxide zones of man to and chimney bodies according to past reports.

The potential for further expansion through a focused exploration is wide open along strike and at depth for both oxide and into sulfide ore targets. This specific tenure, located within the Company's 100%-owned Union Project, has been of interest to Riverside for several years and this Agreement finally consolidates this key inlier ground. The Union Mine property is in good standing with established infrastructure, surface access, and the opportunity to complete option purchase for 100% interest in these claims provides the Company with a clear path to start testing priority targets across the consolidated land package in this district.

Recent work by Riverside, announced earlier for the tenures around the Union Mine ground, returnedhigh grade assays from rock chip sampling and identified favorable structures (see press release October 3, 2022) The next phase of proposed work on this land tenure includes ground-based geophysics building upon previous work to further refine the larger structures likely responsible for the carbonate replacement bodies similar to those found in the Cananea Mining district (including Buenavista Mine), Sonora and the Sierra Vista Mining district (Taylor and other deposits), Arizona. Drill permitting is now underway and the Company views the consolidated Union Project as one of the Company's lead assets and will move to rapidly refine targets for drilling later this year. Qualified Person & QA/QC: The scientific and technical data contained in this news release pertaining to the La Union Project was reviewed and approved by Julian Manco, P.Geo, a non-independent qualified person to Riverside Resources focusing on the work in Sonora, Mexico, who is responsible for ensuring that the information provided in this news release is accurate and who acts as a "qualified person" under National Instrument43-101 Standards of Disclosure for Mineral Projects.

Rock samples from the exploration program discussed above at the La Union Project were taken to the Bureau Veritas Laboratories in Hermosillo, Mexico for fire assaying for gold. The rejects remained with Bureau Veritas in Mexico while the pulps were transported to Bureau Veritas laboratory in Vancouver, BC, Canada for 45 element ICP/ES-MS analysis using 4-acid digestion methods. A QA/QC program was implemented as part of the sampling procedures for the exploration program.

Standard samples were randomly inserted into the sample stream prior to being sent to the laboratory.