Casa Grande, AZ and Toronto, ON, January 25, 2024 – Arizona Sonoran Copper Company Inc. (TSX:ASCU | OTCQX:ASCUF) (“ASCU” or the “Company”), is pleased to release drill assay results from an exploration program at the MainSpring property, situated within the Cactus copper
project in Arizona. A total of 7 of 11 ASCU drilled holes completed last year (see PR Nov 20, 2023), and 22 legacy holes from the previous option holder are reported here and indicate mineralization from the Parks/Salyer deposit nears surface as it extends south (see FIGURES 1-
14). Future drilling will test the open pit potential of MainSpring with the intent of updating the Cactus Mineral Resource Estimate post-Prefeasibility Study (“PFS”).

Drilling Highlights:
- ECM-194: 1,053 ft (321 m) @ 0.20% CuT, of mineralization from 147 ft (45 m) depth
o 48 ft (15 m) @ 0.35% CuT, 0.25% Cu TSol, 0.001% Mo (oxide)
o 471 ft (144 m) @ 0.3% CuT, 0.29% Cu TSol, 0.001% Mo (enriched)
- ECM-195: 503 ft (153 m) @ 0.27% CuT of mineralization from 145 ft (44 m) depth
o 41 ft (12.5 m) @ 0.63% CuT, 0.59% Cu TSol from 145 ft (44 m) depth (enriched)
o 208 ft (63 m) @ 0.44% CuT, 0.40% Cu TSol, 0.001% Mo (enriched) from 440 ft (134
m)
o 41 ft (12.5 m) @ 0.63% CuT, 0.59% Cu TSol, from 145 ft (41 m) depth
- ESC-010: 1,027 ft (313 m) @ 0.30% CuT of continuous mineralization
o 170 ft (52 m) @ 0.59% CuT, 0.46% Cu TSol, 0.017% Mo (enriched)
o 857 ft (261 m) @ 0.24% CuT, 0.009% Mo (primary)
- ESC-047: 216 ft (66 m) @ 0.60% CuT, 0.51% Cu TSol, 0.011% Mo (enriched)
- ESC-046: 175 ft (53 m) @ 0.68% CuT, 0.65% Cu TSol, 0.004% Mo (enriched)
- ESC-030: 249 ft (76 m) @ 0.41% CuT, 0.31% Cu TSol, 0.006% Mo (oxide)
NOTE: True widths are not known
George Ogilvie, Arizona Sonoran President and CEO commented, “The MainSpring Property shows early signs of promise with continuous mineralization starting from near surface, that may have the potential for being open pittable. Given we only started drilling MainSpring late in 2023, it will not feature in our soon to be released PFS. However, with continued drilling in 1H24, it has the
potential to be included in future technical studies that may further enhance the production profile and economics of the Project.”
He also commented: “The Cactus property continues to show itself as a lower risk copper project with few barriers to entry and low discovery costs. We are showing discovery costs per pound at
Cactus of less than two cents per pound, indicating that we should continue our exploration programs, while concurrently developing our main project. Our high-performing team continues to
deliver excellent results and we expect this to continue with our 2024 work program which is currently being finalized and will be announced to the market shortly.”see & read more on
https://arizonasonoran.com/site/assets/files/6360/2024-01-25_mainspring_drilling.pdf