Riverside Resources Announces Completion of Phase One Drilling at Union Project and Now Awaits Drill Assay Results

The most recent news release from November 12, 2025, states that Riverside Resources Inc. (RRI) has completed Phase One drilling at its Union Project in Sonora, Mexico. The company drilled over 1,600 metres across 12 holes, targeting six distinct areas. More than 700 samples have been shipped to the laboratory, and the company is now awaiting drill assay results. Dr. John-Mark Staude, President & CEO, indicated that this phase tested shallow gold and base metals targets, confirmed key carbonate host units, and gathered structural and alteration data to refine the geologic model. The next exploration program (Phase Two) is planned for H1 2026, contingent on the received assay results and further geological interpretation.

This news is a procedural update confirming the completion of an expected exploration activity. It provides no new data (such as assay results) that would materially impact the company's valuation or stock price in the immediate term. The completion of drilling was anticipated, as evidenced by previous news releases detailing the commencement and progress of the drill program (August 6, 2025, and September 24, 2025). The market's reaction will hinge on the forthcoming assay results, which are the primary objective of this drilling phase. The announcement reiterates the company's systematic approach to exploration and its project generator model, which is consistent with its stated strategy.

Riverside Resources Inc. (TSXV: RRI) operates as a critical minerals and gold-silver exploration project generator across North America (Mexico, Canada, USA). The company's strategy focuses on generating prospects, advancing them through partner-funded exploration, and monetizing discoveries through spin-outs, royalties, or outright sales, thereby limiting dilution to its shareholders. It boasts a strong financial position, being debt-free with over C$4 million in cash reserves as of Q2 2025.

Flagship Projects: - Union Project (Sonora, Mexico): This polymetallic (gold, silver, copper, base metals) project is currently the focus of the latest news. It is characterized as a Carbonate Replacement Deposit (CRD) system with multiple historical mine workings and extensive alteration. Riverside has optioned 100% interest in the project to Questcorp Mining Inc., retaining a 2.5% Net Smelter Royalty (NSR) and a 9.9% equity stake in Questcorp, while remaining the operator. Phase One drilling has just been completed. - Cecilia Gold & Silver Project (Sonora, Mexico): A low-sulfidation epithermal system with high-grade gold found at surface (samples up to 35 g/t Au). Although Fortuna Mining Corp. recently terminated its option agreement, Riverside has regained 100% control, along with positive Q4 2024 drill results, and is seeking new avenues for its advancement. - Revel Gold-REE Project (British Columbia, Canada): An emerging Rare Earth Elements project, with an extensive carbonatite unit identified over 7 kilometers. This project is undrilled and part of BC's broader REE carbonatite belt, indicating significant scale potential. - Blue Jay Gold Corp. (Ontario, Canada): While a spun-out entity, it represents a key asset for Riverside, which retains a significant equity stake (74.8%) and a 2% NSR on Blue Jay's three Ontario gold projects (Pichette, Oakes, Duc).