Saturday, September 26, 2026
MiningNewsTerminal
Saturday, September 26, 2026 Admin

CUU.V ·

COPPER FOX ANNOUNCES SCHAFT CREEK PRELIMINARY ECONOMIC ASSESSMENT After-Tax NPV8 US$842.1 million (C$1.1billion); IRR 12.9% Pre-Tax NPV8 US$1.4 billion (C$1.8 billion); IRR 15.2% Projected After-Tax Payback 4.8 years Metal Price Assumptions: Cu: US$3.25/lb, Au: US$1,500/oz, Mo: US$10.00/lb, Ag: US$2

Economic Studies

COPPER FOX ANNOUNCES SCHAFT CREEK

PRELIMINARY ECONOMIC ASSESSMENT

After-Tax NPV8 US$842.1 million (C$1.1billion); IRR 12.9%

Pre-Tax NPV8 US$1.4 billion (C$1.8 billion); IRR 15.2%

Projected After-Tax Payback 4.8 years

Metal Price Assumptions: Cu: US$3.25/lb, Au: US$1,500/oz, Mo: US$10.00/lb, Ag: US$20.00/oz

Calgary, Alberta – September 20, 2021. Copper Fox Metals Inc. (“Copper Fox” or the “Company”) (TSX-V:

CUU – OTCQX: CPFXF) is pleased to announce the results of a Preliminary Economic Assessment (the “PEA”)

for the Schaft Creek copper -molybdenum-gold-silver porphyry deposit (the “ Schaft Creek Project”) located in

Tahltan Territory in northwestern British Columbia. The Schaft Creek Project covers 55,779.56 ha of mineral

concessions, located approximately 60 kilometers (“km”) south of Telegraph Creek near existing transportation and

energy infrastructure. The effective date of the PEA is September 10, 2021, a technical report relating to the PEA

will be filed on SEDAR within 45 days of this news release. The 2021 PEA will supersede all previous studies and

incorporates the Updated Mineral Resource Estimate announced on March 22, 2021.

The Schaft Creek Project is managed through the Schaft Creek Joint Venture (“Schaft Creek JV”) formed in 2013

between Teck Resources Limited (“Teck”) (75%) and Copper Fox (25%) with Teck being the Operator. The PEA

was prepared by Tetra Tech Canada Inc. (“Tet ra Tech”) as the general contractor on behalf of Copper Fox in

accordance with NI 43-101 standards (May 9, 2016), and CIM Definition Standards (May 19, 2014) with guidance

from CIM Best Practice Guidelines (November 29, 2019). The results of t he PEA are presented on a 100%

project basis and in US$ unless stated otherwise.

PEA Highlights

• Pre-Tax Net Present Value (“NPV8”) of US$1.4 billion and Internal Rate of Return (“IRR”) of 15.2%

• After-Tax NPV8 of US$842.1 million and IRR of 12.9%

• Average annual EBITDA(6) of US$695.4 million based on first 5 years(1) (Years 2-6) at full production, and

US$10.8 billion Life of Mine (“LOM”)

• Average annual Free Cash Flow (“FCF”) before recovery of capital costs of US$633.4 million based on

first 5 years(1) (Years 2-6) at full production and US$9.96 billion LOM

• Net Smelter Return (“NSR”) of US$20.63 per tonne (“t”)

• 21-year Life of Mine (“LOM”) producing approximately 5.0 billion pounds (“lbs”) or 2.3 million tonnes

(“Mt”) copper, 3.7 million ounces (“oz”) gold, 226.0 million lbs molybdenum and 16.4 million oz silver in

concentrate

• 133,000 tonne per day (“tpd”) LOM nominal milling rate at 92% capacity processing 1.030 billion tonnes

(“Bt”) of mill feed LOM, representing approximately 60% of identified mineral resources

• Estimated Initial Capital Costs of US$2.653 billion, not including Sustaining Capital Costs of US$848.7

million which is inclusive of US$154.0 million Closure Costs. Operating Costs are estimated to be

US$8.66/t processed

• C1 Cost(7) (net of by-product credits); for first 5 years(1) (Years 2-6) at full production of US$0.46 per

pound of payable copper and US$1.00 per pound payable copper LOM

2

• All in Sustaining Costs(7) for first 5 years(1) (Years 2-6) at full production of US$0.72 per pound payable

copper and US$1.18 per pound payable copper LOM

The results of the PEA are preliminary in nature. The PEA includes a combination of indicated and inferred

mineral resources which are considered too speculative geologically to have the economic considerations applied

that would enable them to be categorized as mineral reserves. There is no certainty that the PEA forecasts will

be realized or that any of the resources will ever be upgraded to reserves. Mineral resources that are not mineral

reserves do not have demonstrated economic viability.

Elmer B. Stewart, President and CEO of Copper Fox stated: “We are very pleased with the results of the PEA and

the recommended program work of C$23 million that could be considered by the Operator to advance the Schaft

Creek Project to the Pre -Feasibility Study (“PFS”) stage of study and evaluation . The significantly higher

investment returns, resulting in part from project enhancements developed over the past 2 years , and remaining

resources in the deposit on completion of the first 21 years of min ing, provides a compelling view of the Schaft

Creek Project’s financial potential. The smaller project “footprint” and ability to access hydroelectric power from

the existing provincial power grid is expected to reduce capital costs, as well as lower CO2 emissions and the impact

on the environment when compared to other large copper development opportunities. The Schaft Creek Project is

a copper-molybdenum-gold-silver conventional truck-and-shovel development opportunity with scale, optionality

and is in a Tier 1 mining jurisdiction. In the first 5 years of full operation, the Schaft Creek Project has the potential

to produce, on average, 398 million copper equivalent pounds (181Kt) per year.”

Key Changes from Previous Technical Study in 2013

• Updated mine plan that reduced the strip ratio from 2.16:1 to 1:1

• LOM average operating cost per tonne processed reduced from US$13.25/t to US$8.66/t.

• Initial capital costs reduced from US$3.26 billion to US$2.65 billion

• Sustaining Capital Costs reduced from US$1.20 billion to US$848.7 million

• Re-location of the milling facility closer to the pit

• Re-location of the Tailing Management Facility (TMF) closer to the milling facility

• Embankments in TMF reduced from three to two

• Waste rock storage facilities reduced from three to two

Summary of PEA Economic Model

The PEA, Pre-Tax and After-Tax project economic analysis (reflecting constant 2021 US dollars) of the Schaft

Creek Project is based on payable metal and was prepared on a 100% basis using revenues and costs projected into

the future on an annual basis and then discounted using mid year discounting at a rate of 8% per annum to yield the

NPV and IRR. Net Smelter Return, Capital, Operating and Sustaining Costs, Closure Costs, Net Proceeds Interests

payments, BC Mineral Tax, and Federal and Provincial income taxes are included in the financial analysis. Metal

prices are based on Long Term consensus metal prices (Energy and Metals Consensus Forecast, inflation adjusted

pricing dated June 2021). Notes to accompany the tables are included at the end of this news release.

3

The Operational Summary for the PEA, is set out below:

Category Unit Total (1) Annual Average (2)

Years

2 to 6

First 10

years LOM

Years

2 to 6

First 10

years LOM

Mining

Total Material Moved Mt 546.3 1,236.4 2,073.6 109.3 123.6 98.7

Processing

Total Material Processed Mt 243.0 469.0 1,030.2 48.6 46.9 49.1

Head grade - copper % 0.288 0.281 0.265 0.288 0.281 0.265

Head grade - gold g/t 0.203 0.187 0.157 0.203 0.187 0.157

Head grade - silver % 1.225 1.202 1.229 1.225 1.202 1.229

Head grade - molybdenum g/t 0.014 0.015 0.017 0.014 0.015 0.017

Production

Copper Mlbs 1,290.3 2,429.4 4,994.6 258.1 242.9 237.8

Gold kozs 1,162.5 2,045.7 3,695.0 232.5 204.6 176.0

Silver kozs 3,848.8 7,208.6 16,412.5 769.8 720.9 781.5

Molybdenum klbs 45,459 89,838 226,457 9,092 8,984 10,784

Copper equivalent (3) Mlbs 1,990.5 3,694.3 7,497.8 398.1 369.4 357.0

Financial Summary

Revenue (net of TCRC) $USM 5,867.4 10,867.4 21,959.1 1,173.5 1,086.7 1045.7

Site Operating costs $USM (2,092.5) (4,337.8) (8,921.5) (418.5) (433.8) (424.8)

Concentrate transportation costs $USM (181.4) (342.1) (709.4) (36.3) (34.2) (33.8)

NPI & Other Offisite Costs $USM (45.3) (200.4) (593.1) (9.1) (20.0) (28.2)

EBITDA(6) $USM 3,477.1 5,813.5 10,812.9 695.4 581.3 514.9

Free Cash Flow (including Initial Capex) $USM 747.4 2,578 7,376 124.6 257.8 351.2

Free Cash Flow (excluding Initial Capex) (1) $USM 3,167 5,231 9,964 633.4 523.1 474.5

Cash Costs (4)

Before by-product credits $US/lb.Cu (2.17) (2.40) (2.56) (2.17) (2.40) (2.56)

After by-product credits $US/lb.Cu (0.46) (0.77) (1.00) (0.46) (0.77) (1.00)

All-in sustaining costs $US/lb.Cu (0.72) (1.00) (1.18) (0.72) (1.00) (1.18)

Capital Costs

Initial Capital (direct, indirect, contingency) $USM (2,653.2)

Sustaining Costs $USM (334.4) (541.8) (848.7) (66.9) (54.2) (40.4)

Closure costs $USM included in sustaining capex

Economic Summary

Pre-Tax

Net Present Value (8%) $USM 1,383.5

Internal Rate of Return % 15.2

Payback Pre-Tax (5) years 4.4

Post-Tax

Net Present Value (8%) $USM 842.1

Internal Rate of Return % 12.9

Payback Post-Tax (5) years 4.8

Revenue split by commodity is copper (66.6%), gold (22.7%), molybdenum (9.3%) and silver (1.3%).

4

The PEA After-Tax Annual and Cumulative FCFs, EBITDA and Capital Cost Expenditure are shown below:

5

The sensitivity and incremental percentage change (8% discount rate) of the EBITDA, Free Cash Flow (FCF) and

NPV based on incremental changes in metal prices, FOREX (CADUSD), Operating costs (Opex), and Initial

Capital costs on after-tax basis are shown below:

1

st

5 years EBITDA

Base Case

US$695M

1

st

5 years After-Tax FCF

Base Case

US$574M

After-Tax NPV

Base Case

US$842M

CADUSD

(+/- 10

points)

Copper Price

(+/- $0.25/lb)

Opex

(+/- 5%)

Gold

(+/- $100/oz)

Initial Capex

(+/- 5%)

Molybdenum

(+/- $1.00/lb)

Silver

(+/- $1/oz)

Note: Green represents an increase in the input variable; grey represents a decrease. Base Case=The economic

analysis in this news release.

Note: Images in this news release can be seen on the PDF version of the news release located on SEDAR and

our website www.copperfoxmetals.com.

After-Tax Schaft Creek Project Economics

The After-tax NPV and IRR , after applicable Federal and Provincial tax are deducted, are US$842.1 million and

12.9%. Payback of initial capital is achieved in 4.8 years from commencement of operations. The BC Mineral Tax

(Provincial Resource Tax) is deductible from Federal and Provincial taxes payable. Federal, Provincial and BC

Mineral Tax payable based on the PEA financial model are outlined below:

Estimated Taxes Payable

Tax Component LOM Amount (C$M)

Corporate Tax (Federal) 1,432

Corporate Tax (Provincial) 1,145

BC Mineral Tax 1,198

Total Taxes 3,775

695;

(0%)

687;

(1%)

695;

0%

674;

(3%)

715;

3%

636;

(9%)

662;

(5%)

696;

0%

704;

1%

695;

0%

717;

3%

675;

(3%)

755;

9%

724;

4%

573;

(0%)

568;

(1%)

567;

(1%)

558;

(3%)

587;

2%

532;

(7%)

558;

(3%)

574;

0%

580;

1%

580;

1%

589;

3%

560;

(2%)

615;

7%

587;

2%

852;

(0%)

814;

(5%)

928;

9%

778;

(9%)

943;

10%

613;

(28%)

566;

(34%)

857;

0%

895;

5%

781;

(9%)

931;

9%

766;

(10%)

1,094;

28%

1,098;

29%

6

Capital Cost Estimates

The major items of the initial capital cost estimate (accuracy of +/- 30%), as of Q4 2020 which covers direct field

costs, indirect costs associated with design, construction, and commissioning with no allowances for inflation or

escalation, are outlined below. The estimates are consistent with a Class 5 e stimate. Capital intensity (excluding

contingency) is estimated to be approximately C$20,200 (US$15,500) per operating tonne and C$17,200

(US$13,200) per operating tonne of payable CuEq(3) production. (Note: CuEq is estimated using accepted

metallurgical recovery for each metal and the metal price assumptions used in this PEA).

Initial Capital Costs

C$M US$M

Direct Costs

Overall site 178.3 137.3

Mining 245.2 188.8

Primary Crushing 65.3 50.3

Stockpile & Reclaim 54.3 41.8

Grinding, Flotation and Regrind 649.4 500.0

Tailing Management Facility (TMF) 178.2 137.2

Site Services and Site Utilities 38.3 29.5

Ancillary Buildings 153.0 117.8

Plant Mobile Fleet 8.8 6.8

Temporary Services 5.6 4.3

Off-site Infrastructure and Facilities 106.8 82.2

Total Direct Costs $1,683.2 $1,296.1

Indirect Costs 1,001.3 771.0

Total Indirect Costs $1,001.3 $771.0

Total Direct and Indirect Costs $2,684.5 $2,067.1

Contingency (@25.0%) + provisions 761.2 586.1

Total Initial Capital $3,447.3 $2,653.2

Sustaining Costs

The main components of the LOM sustaining capital are set out below:

LOM Sustaining Capital

Area US$M

Mining 335.15

Tailings 239.96

Process/Infrastructure 48.46

Environmental Monitoring 40.39

BC Hydro 30.77

Closure 154.0

Total Sustaining Capital 848.73

7

Operating Costs

The LOM site unit operating cash costs per tonne processed are set out below:

Note: Mining includes the cost of mining waste and processed material. The LOM average strip ratio is

estimated to be 1:1.

PEA Project Description Update

Social and Environment

Copper Fox completed environmental baseline work on the Schaft Creek project between 2006 and 2013 . Since

2013 additional environmental baseline work has been carried out by the Schaft Creek JV. Copper Fox is committed

to working with its JV partner to develop and operat e the Schaft Creek Project in a safe, ethically and socially

responsible manner while maximizing benefits and economic opportunities for local First Nations and other

communities, including employment, training, and using local service providers.

A review of the current Provincial and Federal environmental regulations indicates that the PEA project design

should not present any issues pursuant to Provincial and Federal requirements in the Environmental Assessment

process.

Reclamation plans for the TMF, open pit and waste rock are set out in the PEA. These plans will be considered and

updated throughout design, construction, and operation of the Schaft Creek Project to help ensure that these

objectives can be achieved.

Updated Mineral Resource Estimate

The Updated Mineral Resource Estimate for the Schaft Creek Project was announced on March 22, 2021.

Approximately 80% of the mineral resources in the Schaft Creek deposit are classified as Measured and Indicated.

Click here for news release

Mining

Mining of the Schaft Creek deposit is planned as a conventional truck -shovel open-pit mining operation. Total

mine production is estimated to be 1.03 Bt of mill feed and 1.03 Bt of waste rock resulting in a LOM 1:1 strip ratio.

Annual mined tonnes range from 46.9 to 165.0 Mt, averaging 98.7 Mt LOM. The 21 -year mine plan utilizes

approximately 60% of the mineral resource base and provides options to extend mine life and/or increase s in

throughput.

Mining operation will commence in an area of higher-grade material for processing in year s 1 -5 of milling

operations before transitioning to the south end of the Liard zone. The push back to the north results in increased

annual tonnes of waste mined to provide access to mineralization mined in the next phase of the mine plan . The

final phase extends to the ultimate pit bottom which based on the resource block model would end in mineralization.

LOM Processing Costs

Area US$/t processed

Mining 3.11

Processing 4.08

G&A 0.79

Surface Services 0.25

Tailings Management 0.11

Concentrate Transportation 0.32

Total 8.66

8

The mine plan includes a stockpiling strategy to ensure optimal LOM mill feed grade. Run-of-mine ore would be

delivered to a gyratory crusher at the edge of the pit and transported via conveyor to a coarse ore stockpile near the

mill site.

Waste material will be used for road, TMF and infrastructure construction with the balance stored in two separate

areas located at varying distances from the proposed open pit.

Process Plant

The processing plant is designed with a planned nominal throughput of 133,000 tpd (at 92% capacity). The annual

throughput varies from 48.5 Mt to 51.5 Mt per year averaging 49.1 Mt per year, primarily due to the comminution

characteristics of the mineralization.

The milling process is a conventional grinding and flotation circuit, consisting of two process trains to produce a

high-quality copper concentrate with significant gold and silver by-product credits and a separate molybdenum

concentrate. Each of the process trains consists of SAG mill - ball mills - pebble crushers (‘SABC’) primary

grinding, bulk rougher/scavenger flotation, bulk concentrate regrinding and cleaner flotation circuit s. The bulk

concentrate produced will be separated to produce market grade copper -gold-silver concentrate and molybdenum

concentrate. LOM metal recoveries to copper concentrate containing 28% copper are expected to be 83.1% for

copper, 71.0% for gold and 40.3% for silver. The molybdenum recovery to the molybdenum concentrate

(containing >50% Molybdenum) is estimated to be 60.1%. Tailings would be transported to the TMF through

pipelines.

Forecasted Metal Production

The Schaft Creek copper deposit contains low, but significant gold , molybdenum and silver concentrations. By-

product metal credits account for approximately 33% of the CuEq production attributable to the Schaft Creek

Project. Metal production is highest in the first five years of full production primarily due to mining of higher-grade

mineralization. In the first five years of full production, the average recoverable CuEq production is estimated to be

approximately 398.1 million lbs. (180.6 Kt)

LOM, the copper concentrate is expected to contain on average 28% copper, 14.1 grams per tonne (“g/t”) gold and

63.0 g/t silver with a moisture content of 9% and the molybdenum concentrate is expected to average 50%

molybdenum with a moisture content of 5%. The Schaft Creek copper concentrate as modeled is considered a

premium copper concentrate in terms of copper grade, gold-silver by-products and low deleterious element content.

The estimated LOM metal and “dry” copper and molybdenum concentrate production is summarized below.

Concentrate Metal Production

Description

Unit

Years 2-6(1)

Annual

Average

Year 1-10

Annual

Average

LOM

Annual

Average

LOM

Total

Copper Concentrate tonnes (000's) 418 393 385 8,091

Copper in Concentrate Mlbs 258 243 238 4,995

Copper in Concentrate tonnes (000's) 117 110 108 2,266

Gold in Concentrate oz. (000's) 233 205 176 3,695

Silver in Concentrate oz. (000's) 770 721 782 16,413

Molybdenum concentrate tonnes 8,248 8,150 9,783 205,439

Molybdenum in Concentrate lbs. (000's) 9,092 8,984 10,784 226,457

Note: (1) Based on first five years of full production. Year 1 is partial year of production and not included. Numbers

are rounded.