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C3 Metals Reports Maiden Resource of Over 560 Million Lbs. of Contained Copper, 320,000 Oz. Gold in First of 13 Skarn Targets at Jasperoide, Peru

Resource Estimates

C3 Metals Reports Maiden Resource of Over

560 Million Lbs. of Contained Copper, 320,000

Oz. Gold in First of 13 Skarn Targets at

Jasperoide, Peru

Toronto, Ontario--(Newsfile Corp. - May 23, 2023) -

C3 Metals Inc.

(TSXV: CCCM) (OTCQB: CUAUF)

("C3 Metals" or the "Company") is pleased to announce an initial Mineral Resource estimate for the

Montana de Cobre Zone ("MCZ") on its 100%-owned Jasperoide Project in southern Peru.

The MCZ is the first copper-gold skarn zone that C3 Metals has systematically explored along a 28km

belt ("Jasperoide Belt") that extends along the eastern side of the Company's 300 sq. km (30,000-

hectare) mineral concession and application package (Figure 1).

Thirteen separate skarn occurrences

have been mapped along the Jasperoide Belt to date.

A second, parallel belt of copper-gold mineralization (the "Khaleesi Belt") is located approximately 10km

west of the Jasperoide Belt.

The Khaleesi Belt hosts the Company's 100%-owned Khaleesi porphyry

and skarn project.

The Company is currently working through the Declaration de Impacto Ambiental

(DIA) permitting process to enable exploration drilling at Khaleesi.

MCZ Mineral Resource Estimate Highlights

MCZ Mineral Resources breakdown:

Measured & Indicated Mineral Resources - 51.9 million ("M") tonnes ("t") at 0.50%

total copper and 0.20 g/t gold for 569.1 million pounds of copper and 326,800

ounces of gold.

Measured Mineral Resources

- 28.6Mt at 0.60% total copper, 0.24 g/t gold for 380.0M

pounds of copper and 218,200 ounces of gold.

Indicated Mineral Resources

- 23.3Mt at 0.37% total copper, 0.15 g/t gold for 189.1M

pounds of copper and 108,600 ounces of gold.

Inferred Mineral Resources

- 4.0Mt at 0.32% total copper, 0.11 g/t gold for 28.3M pounds

of copper and 14,600 ounces of gold.

Mineral Resources are reported based on a conceptual constraining pit shell ("CCPS") to

demonstrate reasonable prospects for eventual economic, open pit extraction.

Assumptions

include $3.75/lb copper price and an estimated 75% copper recovery.

Calculated breakeven cut-

off grade is 0.14% copper.

The MCZ deposit comprises a shallow-dipping copper-gold skarn that is oxidized to greater than

200m vertical depth and with a 50m to 250m true thickness.

Copper oxide mineralization at the MCZ increases significantly with depth, with multiple drill holes

intersecting 30m to 80m thick zones of greater than 2.0% copper oxide mineralization.

Dan Symons, President & CEO, stated

, "We are very pleased to announce this significant milestone of

our Company.

The maiden mineral resource estimate at the MCZ demonstrates a near-surface, high-

grade, copper-gold oxide deposit that we expect will benefit from a very low strip ratio.

There is also

potential to extend the MCZ to the north, south and west. Importantly, the MCZ is the only prospect to

be systematically drilled out of 13 prospects on the 28km long Jasperoide Belt.

As demonstrated by

the MCZ, we see a tremendous opportunity to delineate more of these near-surface targets along the

belt."

Dan Symons added,

"It is important to emphasize the strategic location of C3 Metals' 300 sq. km

concession package within the mineral district and to recognize the undrilled potential of the

Company's untested Khaleesi skarn and porphyry belt on the western side of our property.

We have

confirmed outcropping porphyry, skarn and epithermal mineralization along the parallel Khaleesi Belt

and intend to drill test these targets once drill permits are in hand.

It is clear that we have assembled a

very large, strategic land package in Peru - the second largest copper producing jurisdiction in the

world."

Figure 1: C3 Metals mineral concession package showing two parallel mineralized copper-gold skarn-

porphyry belts and the location of the MCZ deposit and Khaleesi project.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/2661/167014_b670b947546d783c_001full.jpg

MCZ is a near-surface copper-gold skarn-type deposit with well-developed copper oxide mineralization

to over 200m in vertical depth.

C3 Metals' approximate 300 sq. km mineral concession package is

located within the Andahuaylas-Yauri skarn/porphyry belt approximately 45km east of MMG's Las

Bambas mine and First Quantum Minerals' Haquira project, 40km northwest of Hudbay's Constancia

and Pampacanchca mines and 100km northwest of Glencore's Antapaccay mine (Figure 2).

Figure 2: Regional map showing C3 Metals' mineral concession package in relation to other large-scale

operations, development projects and exploration projects.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/2661/167014_b670b947546d783c_002full.jpg

Table 1: MCZ Mineral Resource Estimate

Mineral

Resource Category

Tonnes

(Kt)

Copper Grade

(%)

Gold Grade

(g/t)

Contained

Copper

(M lbs)

Contained

Gold

(K oz)

Total Tonnes

in CCPS

Measured

28,636

0.60

0.24

380.0

218.2

Indicated

23,304

0.37

0.15

189.1

108.6

Measured &

Indicated

51,940

0.50

0.20

569.1

326.8

97,057

Inferred

4,005

0.32

0.11

28.3

14.6

Notes:

1. The Mineral Resource estimate has an effective date of 1 May 2023 and the estimate was prepared using the definitions in CIM Definition

Standards (10 May 2014).

2. The CCPS used to calculate the Mineral Resource estimate uses a copper price of $3.75/lb, a copper recovery of 75%, an open pit mining unit cost

of $2.35/t, processing costs of $4.66/t and G&A cost of $1.37/t.

The breakeven cut-off grade using these parameters is 0.14% copper.

3. Mineral Resources are reported in relation to a CCPS in order to demonstrate reasonable prospects for eventual economic extraction, as required

by the definition of Mineral Resource in NI 43-101; mineralization lying outside of the pit shell is excluded from the Mineral Resource.

Potential revenue

from gold was not considered for the development of the constraining pit shell; the Mineral Resource estimate is not dependent on recovering gold.

4. The quantity and grade of reported Inferred Mineral Resources in this estimate are uncertain in nature and there has been insufficient exploration

to define these Inferred Mineral Resources as Indicated or Measured Mineral Resources.

5. All figures are rounded to reflect the relative accuracy of the estimate and therefore numbers may not appear to add precisely.

6. Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability.

7. The Mineral Resource estimate is prepared by IMC of Tucson, AZ, under the direction of Michael G. Hester, FAusIMM, a Qualified Person.

The Mineral Resource estimate is based on a resource model developed during February and March

2023 by Independent Mining Consultants, Inc. (IMC) under the direction of Michael G. Hester, FAusIMM,

a Qualified Person under National Instrument ("NI") 43-101.

The resource model incorporates all

available drilling information and an updated geologic interpretation.

In total, 103 drill holes and 24,218m

of drilling was completed in the MCZ area in which the maiden Mineral Resource estimate was

prepared.

The Measured, Indicated and Inferred Mineral Resources reported herein are contained within a floating

cone pit shell to demonstrate "reasonable prospects for eventual economic extraction" to meet the

definition of Mineral Resource in NI 43-101.

A NI 43-101 technical report will be filed within 45 days.

Table 2 below shows a sensitivity analysis of the Mineral Resource estimate to various total copper cut-

off grades.

The base case Mineral Resource estimate is at a cut-off grade of 0.14% total copper, which

is the estimated breakeven cut-off grade based on a copper price of $3.75/lb and the unit costs and

recovery parameters used for this estimate.

Table 2: Sensitivity Analysis

Mineral Resource Cone Shells at Various Copper Prices and Breakeven Cut-off Grades

Cu Price

(US$/lb)

Cut-off

(%Cu)

Resource

Category

Tonnes

Kt

Copper

(%)

Gold

(g/t)

Copper

(mlbs)

Gold

(koz)

Total

Tonnes in CCPS

Measured

25,383

0.66

0.25

368.2

204.8

Indicated

17,897

0.42

0.16

165.7

91.5

3.00

0.18

M+I

43,280

0.56

0.21

533.9

296.3

86,600

Inferred

2,685

0.34

0.11

20.4

9.5

Measured

27,078

0.63

0.24

374.3

211.6

Indicated

20,306

0.39

0.15

175.9

99.2

3.25

0.16

M+I

47,384

0.53

0.20

550.2

310.8

89,602

Inferred

3,222

0.33

0.11

23.3

11.4

Measured

27,894

0.61

0.24

377.6

215.2

Indicated

21,923

0.38

0.15

183.7

105.0

3.50

0.15

M+I

49,817

0.51

0.20

561.2

320.3

94,875

Inferred

3,656

0.33

0.11

26.6

13.3

Measured

28,636

0.60

0.24

380.0

218.2

Indicated

23,304

0.37

0.15

189.1

108.6

3.75

0.14

M+I

51,940

0.50

0.20

569.1

326.8

97,057

Inferred

4,005

0.32

0.11

28.3

14.6

Measured

29,369

0.59

0.23

382.0

220.0

Indicated

24,781

0.36

0.14

193.9

113.9

4.00

0.13

M+I

54,150

0.48

0.19

576.0

333.9

101,346

Inferred

4,656

0.32

0.12

32.7

17.5

Measured

30,170

0.58

0.23

384.4

223.1

Indicated

26,317

0.34

0.14

199.0

117.6

4.25

0.12

M+I

56,487

0.47

0.19

583.4

340.7

103,539

Inferred

4,997

0.31

0.12

34.0

18.5

Measured

30,212

0.58

0.23

385.0

223.4

Indicated

26,455

0.34

0.14

200.0

118.2

4.50

0.12

M+I

56,667

0.47

0.19

585.0

341.6

104,795

Inferred

5,113

0.31

0.12

34.6

18.9

Measured

30,923

0.57

0.23

386.5

224.7

Indicated

27,763

0.33

0.14

203.2

121.4

4.75

0.11

M+I

58,686

0.46

0.18

589.7

346.1

105,997

Inferred

5,590

0.29

0.11

36.2

19.9

Measured

31,685

0.56

0.22

388.4

227.2

Indicated

29,262

0.32

0.13

207.7

126.1

5.00

0.10

M+I

60,947

0.44

0.18

596.1

353.2

108,672

Inferred

6,112

0.28

0.11

38.1

21.4

C3 Metals Exploration Potential in Peru

The MCZ deposit has a high-grade core, comprising a Measured & Indicated Resource of 15.9Mt at

1.1% copper and 0.35 g/t gold (0.45% copper cut-off).

This enriched zone is located within the CCPS,

which shows a potential low strip ratio.

The higher-grade core at MCZ and the proximity of nearby

copper mines and development projects provides the Company with various development options.

These include the potential to develop a standalone SX/EW (solvent extraction and electrowinning)

mining operation that exploits higher grade supergene copper mineralization early on, or potential

partnerships with nearby mines and development projects.

The MCZ deposit is strategically located within 60km of two large scale heap leach copper development

projects at Haquira (First Quantum Minerals) and Cotabambas (Panoro Minerals) and two large scale

copper flotation mines at Las Bambas (MMG) and Constancia (Hudbay Minerals).

Production at Haquira

is planned from near-surface secondary copper mineralization that is amenable to SX/EW Heap

Leaching (like MCZ) and from primary copper-gold mineralization amenable to a concentrator flotation

circuit (source: https://first-quantum.com).

Panoro are evaluating a SX/EW Heap Leaching operation that

supports a 17-year mine life (source: https://panoro.com).

There are multiple copper-gold skarn, porphyry and epithermal prospects north, west and south of the

MCZ deposit that will be evaluated as drill permits are finalized. A total of 13 skarn prospects have been

identified and are located along the northeast-southwest trending Jasperoide Belt that extends for over

28km along C3 Metals' eastern mineral concession package.

On the western side of C3 Metals' mineral concession package are outcropping porphyry, skarn and

epithermal style mineralization, along the Khaleesi Belt, which is a parallel copper-gold mineralized belt

located approximately 10km west of the Jasperoide Belt.

Future targets for drill testing include:

Jasperoide Belt

The Jasperoide Belt comprises copper and gold mineralization that is broadly contemporaneous

with magnetite-dominated iron-rich skarns, epithermal veins and an interpreted porphyry.

28km belt extends 15km north and 13km south of the MCZ deposit.

Thirteen copper-gold mineralized skarn prospects have been identified to date.

Informal miners are actively exploiting a 3km area of near surface magnetite / garnet skarn with

copper oxide and sulphide mineralization (Figure 3).

Figure 3: Photo showing informal mine workings over a 3km strike length, located south of MCZ deposit

on C3 Metals' Jasperoide 39 and 40 concessions.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/2661/167014_b670b947546d783c_003full.jpg

Khaleesi Belt

Parallel porphyry, skarn and epithermal belt located 10km west of the MCZ deposit and the

Jasperoide Belt.

Outcropping porphyry, skarn and epithermal copper and gold mineralization has been identified.

Discrete zone of porphyry and skarn alteration measuring 1,000m by 1,000m, where surface

samples have confirmed high-grade copper-gold mineralization in porphyry, skarn and polymetallic

vein style mineralization (Figure 4).

Figure 4: Examples of the highest priority exploration targets on the Khaleesi belt within C3 Metals'

mineral concession package.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/2661/167014_b670b947546d783c_004full.jpg

Next Steps

The MCZ was the first skarn target of 13 identified prospects to be drill tested along the 28km

Jasperoide Belt.

Extensive additional mineralization has already been identified on C3 Metals'

landholdings.

The Company believes the MCZ maiden Mineral Resource estimate represents only a

small portion of the broader discovery potential on the property.

A modification to the existing Jasperoide drill permit is underway to extend the permitted area and

provide additional drill platforms and holes.

The Company is also advancing drill permits for its highest

priority targets on the Khaleesi Belt.

Metallurgical test work on the MCZ deposit has commenced.

Results from initial mineralized materials

leach characteristics are expected in the second half of 2023.

The Company envisions the MCZ deposit

as being potentially amenable to a low-strip open pit, copper heap or vat leach operation given the high-

grade, near-surface nature of the deposit.

Other Information

The Mineral Resources are classified in accordance with the May 2014 Canadian Institute of Mining,

Metallurgy and Petroleum ("CIM") "CIM Definition Standards - For Mineral Resources and Mineral

Reserves" adopted by the CIM Council (as amended, the "CIM Definition Standards") in accordance

with the requirements of NI 43-101.

The Mineral Resource estimate reflects the reasonable expectation

that all necessary permits and approvals will be obtained and maintained.

There is no guarantee that any of the Mineral Resources will be converted to Mineral Reserve. There is

also no guarantee that any of the Inferred Mineral Resources will be upgraded to Measured or Indicated

Mineral Resources or to Mineral Reserves.

Mineral Resources that are not Mineral Reserves do not

have demonstrated economic viability.

The Inferred Mineral Resources included in this estimate meet the current definition of Inferred Mineral

Resources.

The quantity and grade of Inferred Mineral Resources are uncertain in nature and there has

been insufficient exploration to define these Inferred Mineral Resources as an Indicated Mineral

Resource.

It is, however, expected that the majority of Inferred Mineral Resource could be upgraded to

Indicated Mineral Resource with continued exploration.

The project is subject to the normal risks that mining projects face including changes to metal prices,

changes to government regulations, social risks, uncertainty in Mineral Resource and recovery

estimates, permitting risks and financing risks.

Metallurgical work on the project is limited at this time.

The main copper minerals identified in the

resource area are amenable to dissolution in sulfuric acid and recovery by solvent

extraction/electrowinning methods.

There is a risk that the gold metal reported in the Mineral Resource

estimate will not be recovered if the processing method ultimately chosen is conventional heap leaching

with sulphuric acid.

Data Verification

The sampling data used for the Mineral Resource estimate was verified by IMC.

A substantial portion of

the database was compared with original assay certificates.

There were no limitations of the verification

process.

IMC is of the opinion that the database is acceptable for the purpose of the Mineral Resource

estimate.

Qualified Persons

Stephen Hughes, P.Geo. is Vice President Exploration and a Director for C3 Metals and is a Qualified

Person as defined by National Instrument 43-101. Mr. Hughes has reviewed the technical information in

this news release and approves the written disclosure contained herein.

The Qualified Person for the

Mineral Resource estimate is Michael G. Hester, FAusIMM, of Independent Mining Consultants, Inc.

For additional information, contact:

Dan Symons

President & CEO

+1 416 716 6466

[email protected]

ABOUT C3 METALS INC.

C3 Metals Inc. is a junior minerals exploration company focused on creating substantive value through

the discovery and development of large copper and gold deposits.

The Company holds the 26,800-

hectare Jasperoide project in the prolific high-grade Andahuaylas-Yauri Porphyry-Skarn belt of Southern

Peru.

Mineralization at Jasperoide is hosted in a similar geological setting to the nearby major mining

operations at Las Bambas (MMG), Constancia (Hudbay) and Antapaccay (Glencore).

C3 Metals also

holds a 100% interest in five licenses covering 20,700 hectares of highly prospective copper-gold terrain

of Jamaica. Mining dates to the 1500s and 1800s when Spanish and British mining companies targeted

high grade copper in veins.

The Company also holds a 2% royalty in Tocvan's Rogers Creek project.

Related Link:

www.c3metals.com

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the

policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this

release.

Technical Program

C3 Metals adheres to a strict QA/QC protocol for handling, sampling, sample transportation and

analyses.

Chain-of-custody protocols are designed to ensure security of samples until their delivery at

the laboratory.

Samples are analysed by 4-Acid digest ICP-MS finish for 63 elements, including pathfinder REE

elements with pulps from samples reporting greater than 1.0% copper being re-assayed by the ore

grade method.

Gold is analysed by 30g Fire Assay AAS finish, with pulps from samples reporting

greater than 5ppm re-assayed by 1kg Screen Fire Assay.

The Company inserts blanks and certified

reference standards in the sample sequence for quality control.

Caution Regarding Forward-Looking Statements

Certain statements contained in this press release constitute forward-looking information. These

statements relate to future events or future performance. The use of any of the words "could", "intend",

"expect", "believe", "will", "projected", "estimated" and similar expressions and statements relating to

matters that are not historical facts are intended to identify forward-looking information and are based on

the Company's current belief or assumptions as to the outcome and timing of such future events. Actual

future results may differ materially. In particular, this release contains forward-looking information relating

to, among other things, the exploration operations of the Company and the timing which could be

affected by the current global COVID-19 pandemic. Those assumptions and factors are based on

information currently available to the Company.

Although such statements are based on reasonable

assumptions of the Company's management, there can be no assurance that any conclusions or

forecasts will prove to be accurate.

While the Company considers these assumptions to be reasonable based on information currently

available, they may prove to be incorrect. Forward-looking information involves known and unknown

risks, uncertainties and other factors which may cause the actual results, performance or achievements

to be materially different from any future results, performance or achievements expressed or implied by

the forward-looking information. Such factors include risks inherent in the exploration and development of

mineral deposits, including risks relating to changes in project parameters as plans continue to be

redefined, risks relating to variations in grade or recovery rates, risks relating to changes in mineral

prices and the worldwide demand for and supply of minerals, risks related to increased competition and

current global financial conditions and the COVID-19 pandemic, access and supply risks, reliance on

key personnel, operational risks, and regulatory risks, including risks relating to the acquisition of the

necessary licenses and permits, financing, capitalization and liquidity risks.

The forward-looking information contained in this release is made as of the date hereof, and the

Company is not obligated to update or revise any forward-looking information, whether as a result of new

information, future events or otherwise, except as required by applicable securities laws. Because of the

risks, uncertainties and assumptions contained herein, investors should not place undue reliance on

forward-looking information. The foregoing statements expressly qualify any forward-looking information

contained herein.

Source: C3 Metals Inc.

To view the source version of this press release, please visit