US Copper Corp. announced the completion of the exploration drilling program announced on June 8, 2023, at the Company's wholly-owned Moonlight-Superior Copper Project, located in Plumas County, California. The Moonlight-Superior Project has a mineral resource estimate of 1.3 billion pounds of copper indicated and 1 billion pounds of copper inferred across three deposits - Moonlight, Superior and Engels.

A total of 15 shallow holes totaling 3,990 feet were drilled at the Engels deposit to test the oxide cap that sits atop the Engels copper sulfide deposit. Drilling at Engels proceeded quickly and the Company was also able to drill an additional 15 holes at the Moonlight deposit totaling 2,430 feet to test the oxide cap on that deposit. A further two holes were then drilled at the Lambs Ridge historical copper deposit.

Samples from all 32 holes have been logged, bagged and sent to the lab for assays. Assay results are expected to be available in September. The main objectives of the 2023 exploration drill program include: Upgrading and potentially expanding the current oxide resource estimate; Providing samples for preliminary metallurgical evaluation; and Providing initial data for inclusion in a preliminary economic assessment on the Engels oxide deposit.