Rain City Resources Inc. (CSE: RAIN) has announced a strategic collaboration agreement with ZERO13, a GMEX Group company, to develop blockchain-enabled traceability, ESG verification, and digital infrastructure for lithium production in Latin America. The company also disclosed a 90-day extension of its exclusivity period with Ion Source LLC, variations to an existing loan note, and changes to its Advisory Board. The multi-pronged update signals Rain City's effort to position itself within the digital and sustainability infrastructure of the critical minerals sector.

Key Points

  • Rain City Resources Inc. (CSE: RAIN) is a Calgary-based critical minerals company focused on Direct Lithium Extraction technologies.
  • Rain City has executed a strategic agreement with ZERO13 to build blockchain-enabled traceability and ESG verification for lithium production chains in Latin America.
  • Exclusivity with Ion Source LLC extended a further 90 days from the Term Sheet executed on 16 April 2026; loan note balance stands at US$49,875 following capitalisation of US$2,375 in accrued interest.
  • Investors may be watching whether definitive agreements with ZERO13 and Ion Source LLC are ultimately executed, as the ZERO13 agreement currently represents a statement of mutual intention only.

Rain City and ZERO13 Target ESG Transparency Across the Lithium Value Chain

Rain City's agreement with ZERO13 is designed to create a certification and traceability framework spanning source-to-product data points, including product purity, water consumption, energy intensity, carbon performance, reagent usage, and chain-of-custody information. The company stated its objective is to serve battery manufacturers, automotive OEMs, offtakers, regulators, and institutional investors seeking verifiable critical mineral supply chains. The release notes, however, that the agreement is largely a statement of mutual intention and does not obligate either party to complete any transaction, financing, or definitive agreement.

Ion Source Exclusivity Extended and AC²ME DLE Technology Collaboration Continues

Rain City announced a mutual 90-day extension to its exclusivity arrangement with Ion Source LLC, originally established under a Term Sheet dated 16 April 2026. The company states both parties have been working closely to advance the AC²ME Direct Lithium Extraction technology platform alongside additional commercial applications. CEO Benjamin Hill characterised the relationship as a strong and mutually collaborative one. The appointment of Ion Source LLC CEO Nicholas Holbrook to Rain City's Advisory Board reinforces the operational depth of this partnership, as disclosed in the announcement.

Loan Note Restructured and Advisory Board Refreshed

Rain City disclosed that its convertible loan note, which matured on 11 July 2026, was restructured into an unsecured demand loan denominated in United States dollars bearing simple interest at 5% per annum. The note holder released all conversion rights at that time, and accrued interest of US$2,375 was capitalised into principal, resulting in an outstanding balance of US$49,875. Separately, three Advisory Board members departed effective 8 September 2026, with Jay Hosanee and Nicholas Holbrook appointed in their place, joining existing member Sebastián Quiñones.