Sonoran Desert Copper Corporation Successful Remediation Testing Results on Brazil Copper Slag Tailings

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Vancouver, British Columbia--(Newsfile Corp. - June 27, 2024) - Sonoran Desert Copper Corporation (TSXV: SDCU) ("SDCU'' or the "Company") is pleased to announce that the Company and its mine tailings solutions partner, Envirotek Remediation Inc. (ETK) have successfully concluded the first testing on a mine tailings sample from a large repository of copper slag tailings in Brazil. The proprietary ETK polymer process was developed to remediate mine tailings to landfill material or aggregates and other industrial end use materials.

Based on this successful test, the two companies will now form a special purpose vehicle (SPV), and a shareholders' agreement will be signed by the Parties for the purpose of commercializing the ETK solutions into the Mining Industry. The results of the ETK Remediation Procedure for the 20 Metal Toxic Characteristic Leaching Procedure (TCLP) analysis are all below the reported detection limit (RDL) or Guideline/Standards (G/S) for Canadian Class II Landfills. (Table 1).

Table 1: TLCP Results

RDL: Reported Detection Limit; G/S: Guideline/Standard (Class II Landfill). Analysis completed by AGAT Laboratories.

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"Our waste treatment sequesters the toxic elements of mining tailings during the polymerization process and transforms the tailings into dry materials that will no longer produce a harmful leachate, as verified by the TCLP analysis of the resulting materials," stated Maria Conejo, CTO for ETK.

PRIVATE PLACEMENT FINANCING OF UNITS AND OPTION GRANT

As previously announced, the Company is offering up to 10,000,000 Units priced at $0.10, for aggregate gross proceeds of up to $1,000,000. Each of the Units will consist of one common share of the Company and one common share purchase warrant, with each warrant being exercisable for an additional common share at an exercise price of $0.25 for 24 months. The Warrants are subject to the right of the Company to accelerate the exercise period if, after the expiration of the 4-month hold, shares of the Company close at or above $0.50 for 10 consecutive trading days. Finders' fees in accordance with TSX Venture Exchange policies may apply to the Financing and all securities issued will be subject to a statutory four-month hold period. Proceeds from the Financing will be used for general working capital, the continuing development of the 4H Copper Project, and advancing further opportunities in the Mining Industry.