Rain City Resources Announces Further Strategic Relationship Executed to Accelerate Commerciality in South America

Executive Summary

• Rain City Resources entered into a Memorandum of Agreement with the Pontifical Catholic University of Chile (PUC) to validate its Cavitation DLE lithium‑brine technology on world‑class brines from Maricunga and La Isla.
• The MoA includes a 12‑month timeline to negotiate binding operational agreements, creating a clear path toward commercial deployment in Chile’s major lithium projects.
• Validation by a top Latin American university is expected to reduce technology risk, support Chile’s national lithium strategy, and enhance Rain’s positioning with investors and potential strategic partners.

Key Details

• Parties Involved: Rain City Resources Inc. (CSE: RAIN) and Pontifical Catholic University of Chile (PUC).
• Scope of Collaboration: Third‑party testing and validation of Rain’s Cavitation Direct Lithium Extraction (DLE) technology on representative brine samples from:
• Maricunga Brine – associated with a Codelco‑Rio Tinto joint venture; contains ~479,000 t LCE reserves.
• La Isla Brine – linked to Rio Tinto‑ENAMI joint venture; hosts ~2.13 M t of lithium metal in a resource category.
• Objective: Provide impartial academic validation of the DLE solution, demonstrating net‑zero water consumption and compliance with Chile’s stringent environmental standards.
• Timeline: MoA mandates both parties to finalize binding operational agreements within 12 months of execution.
• Strategic Alignment: Supports Chile’s National Lithium Strategy for sustainable, low‑impact lithium production; positions Rain among technology validators used by industry leaders such as SQM, Albemarle, Codelco, and Rio Tinto.
• CEO Quote (Benjamin Hill): Emphasized that validation by PUC “significantly reduces perceived technology risk” and creates a tangible pathway from testing to commercial application for shareholders.

Notable Quotes

“The PUC has long served as a key technological validator for industry leaders such as SQM, Albemarle, ENAMI, Codelco, and Rio Tinto… This level of validation significantly reduces perceived technology risk for investors, strategic partners, and potential customers.” – Benjamin Hill, CEO, Rain City Resources

Materiality Assessment: Material – Positive (strategic partnership that could materially affect future revenue prospects and investor perception).