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United States
Cactus Mine Project

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 Location:
38 km S from Chandler, Arizona, United States

  Project Contacts:
850 E Elliot Road, Suite 106 Tempe
Phoenix
Arizona, United States
85284
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EmailEmail
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StagePermitting
Mine TypeOpen Pit & Underground
Commodities
  • Copper
Mining Method
  • Truck & Shovel / Loader
  • Longhole stoping
Mine Life18 years (as of Jan 1, 2021)
Latest NewsArizona Sonoran Announces C$30,000,000 Bought Deal Financing     January 25, 2023


Owners

Source: p. 2
CompanyInterestOwnership
Arizona Sonoran Copper Company Inc. 100 % Indirect
Arizona Sonoran Copper Company Inc. principal asset is a 100% interest in the former Sacaton mine, now called the Cactus Mine, which it acquired from the American Smelting and Refining Company Multi-state Custodial Trust (“ASARCO Trust”) in July 2020.

Contractors

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Deposit Type

  • Porphyry


Summary:

The Cactus deposit is a portion of a large porphyry copper system that has been dismembered and displaced by Tertiary extensional faulting. Porphyry copper deposits form in areas of shallow magmatism within subduction-related tectonic environments (Berger et al., 2008). Cactus has typical characteristics of a porphyry copper deposit which Berger et al. (2008) define as follows:
- One wherein copper-bearing sulfides are localized in a network of fracture-controlled stockwork veinlets and as disseminated grains in the adjacent altered rock matrix.
- Alteration and mineralization at 1 km to 4 km depth are genetically related to magma reservoirs emplaced into the shallow crust (6 km to over 8 km), predominantly intermediate to silicic in composition, in magmatic arcs above subduction zones.
- Intrusive rock complexes that are emplaced immediately before porphyry deposit formation and that host the deposits are predominantly in the form of upright-vertical cylindrical stocks and/or complexes of dikes.
- Zones of phyllic-argillic and marginal propylitic alteration overlap or surround a potassic alteration assemblage.
- Copper may also be introduced during overprinting phyllic-argillic alteration events.

Alteration and Mineralization
The dominant hypogene alteration assemblages in the deposit are phyllic and potassic. Phyllic alteration is characterized by quartz, sericite, and clay, but quartz and sericite predominate. Secondary silica in t ........


Mining Methods

  • Truck & Shovel / Loader
  • Longhole stoping


Summary:

The Cactus Project considers mill feed originating from three sources: the existing surface Stockpile Project of previously mined material, an open pit operation, and an underground operation. To determine appropriate mining approach, mine planning exercises were conducted consisting of combinations of processing and mining strategies. For this PEA, the outcome was to adopt a layered approach that considered initial Stockpile Project mining concurrent with Cactus West open pit stripping and early production for 1-4 years before Cactus West achieving steady state production by year 5. Once the pit reaches a suitable depth, development and early production of Cactus East via a Transverse Longhole Stoping (TLS) method commences in year 6 and achieves steady state production by year 8. Complete extraction of the mineable resource is to take 17 years.

The open pit and Stockpile Project will be a truck and loader / shovel mining method.

Stockpile Project and Open Pit
The Stockpile Project contains approximately 81.2 million tons of low-grade material and 22.8 million tons of waste. A similar but smaller sized equipment fleet will be used to move the low-grade material out of the Stockpile Project as that used for the open pit.

The open pit expansions will provide a total of approximately 71.8 million tons of mineralized material and 101.9 million tons of waste. Based on the planned production rate, the primary equipment fleet will consist of a ........


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityUnitsAvg. AnnualLOM
Copper k tons 28508
All production numbers are expressed as cathode.

Operational Metrics:

Metrics
Waste tonnes, LOM  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
Total tonnes mined, LOM  ......  Subscription required
Tonnes processed, LOM  ......  Subscription required
Annual processing rate  ......  Subscription required
* According to 2021 study.
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Reserves at March 1, 2021:
Variable cutoff grades were reported depending on material type, potential mining method, and potential processing method. Oxide material within resource pit shell = 0.096% TSol; enriched material within resource pit shell = 0.098% TSol; primary material within resource pit shell = 0.205% CuT; oxide material outside resource pit shell = 0.56% TSol; enriched material outside resource pit shell = 0.70% TSol; primary material outside resource pit shell = 0.70% CuT.

CategoryTonnage CommodityGradeContained Metal
Indicated 151,800 kt Copper 0.531 % 1,610,700 k lbs
Inferred 228,900 kt Copper 0.384 % 1,755,300 k lbs

Commodity Production Costs:

CommodityUnitsAverage
All-in sustaining costs (AISC) Copper USD  ......  Subscription required&nbs
C1 cash costs Copper USD  ......  Subscription required&nbs
Assumed price Copper USD  ......  Subscription required&nbs
* According to 2021 study / presentation.
Subscription required - Subscription is required.

Operating Costs:

Units2021
UG mining costs ($/t milled) USD 2.45 *
OP mining costs ($/t milled) USD  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required
Total operating costs ($/t milled) USD  ......  Subscription required
* According to 2021 study.
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2021 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
Total Taxes $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
Pre-tax Cash Flow (LOM) $M USD  ......  Subscription required
After-tax Cash Flow (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 8% $M USD  ......  Subscription required
After-tax NPV @ 10% $M USD  ......  Subscription required
After-tax NPV @ 8% $M USD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
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Proposed Heavy Mobile Equipment as of August 31, 2021:
HME TypeSizeQuantityLeased or
Contractor
Dozer ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Dec 12, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 31, 2021
....................... Subscription required ....................... Subscription required Subscription required Dec 12, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 12, 2022
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2021

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
Subscription required - Subscription is required.

News:

NewsDate
Arizona Sonoran Announces C$30,000,000 Bought Deal Financing January 25, 2023
Arizona Sonoran Intersects 621 ft of 2.0% Total Copper at Parks/Salyer Infill Drilling within 872.5 ft of 1.64% CuT of Continuous Mineralization January 17, 2023

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