U.S. Gold Corp. Provides Update on Engineering Optimization Studies for CK Gold Project

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CHEYENNE, Wyo., Sept. 4, 2024 /PRNewswire/ -- U.S. Gold Corp. (NASDAQ: USAU) (the "Company"), a gold exploration and development company, is pleased to provide the following update on the CK Gold Project engineering and updated Prefeasibility Study progress.

With the approval of the Mine Operating Permit on April 29, 2024, work on the Prefeasibility Study (PFS) update resumed in June 2024. As a result of changes related to permit commitments and ongoing engineering optimization studies to enhance project economics, the Company deems it highly beneficial to consider the results of these studies prior to completing the updated PFS. With gold, copper and silver prices approaching historic highs, far and above the original PFS of December 2021, management believes the time to optimize plant and operations is the present, as equity markets in the junior sector trail a new reality and a durable and well thought out mining operation is established.

Set out below are opportunities under consideration.

Engineering Studies Underway:

Tailings Management Facility (TMF) Optimization: In a review of the stacking sequence and access roads to the TMF, the Company hired Tierra Group International (TGI), a Denver, Colorado based geotechnical engineering firm, to review the overall design of the TMF, and, in particular, to improve road access, stacking and operability. During their review, TGI has identified opportunities to improve the capacity and ease the constructability of the TMF through improved design at, potentially, a reduced capital cost. This does not alter the TMF footprint or design concepts described in the permit approval, which now incorporates a membrane composite liner rather than a modified soil liner as contemplated in the December 2021 PFS.

Water Management Plan: In June 2024, the CK Gold Project received the water discharge permit (WYPDES) from the Wyoming Department of Environmental Quality with specific standards. As a result of the WYPDES approval, TGI has been asked by the Company to evaluate and make recommendations to the site-wide water management plan and water balance model. The Company has an agreement in place with the Cheyenne Board of Public Utility to purchase water to operate the mine. TGI is currently evaluating the possibility of improving water harvesting within the property boundary and storage capacity thereby reducing the amount of makeup water the Company would need to purchase.

Process Plant Trade-off Study: The December 2021 PFS contemplates a 20,000 ton per day sulfide concentrator employing conventional crush, grind, flotation and uses a series of flotation cells to generate a sulfide concentrate. The Company has recently been made aware of enhanced recovery processes using alternative flotation cell technology rather than the conventional technology in its current design. A compelling presentation was made pointing to operational experience at other mines to suggest that alternative flotation equipment and grinding has the potential of improving metal recoveries, lowering capital by reducing the mill building size and the number of conventional flotation cells, and operating costs by reducing personnel and power consumption. As such, the Company has determined the best approach is to investigate the use of this technology prior to finalizing the PFS. Accordingly, 150 kg of ore-grade material has been shipped to a metallurgical laboratory to determine the suitability of the Jameson Cell and IsaMill equipment for the Company's ore.