CMC Announces New Mineral Resource Estimate for the Silver Hart Project

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CMC Metals Ltd
CMC Metals Ltd

VANCOUVER, British Columbia, Nov. 27, 2024 (GLOBE NEWSWIRE) -- CMC Metals Ltd. (TSX-V: CMB) (Frankfurt: ZM5P) (“CMC” or the “Company”) is pleased to announce a new Mineral Resource Estimate (“MRE”) for its silver-lead-zinc Silver Hart Project (SHP), in Yukon, Canada.

The new MRE totals an Inferred resource of 8.820 Moz @ 145.2 g/t silver equivalent (“AgEq”) in 1,889,000 tonnes utilizing a cut-off grade of 50 g/t AgEq (See table 1). This MRE has been prepared in accordance with the Canadian Securities Administrators’ National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”).

Table 1
SHP Pit Constrained Inferred Mineral Resources as of December 31, 2023 at a Cut-off Grade of AgEq>=50 g/t

 

Mining
Method

Domain

Mass

(Tonnes)

Average Value

Material Content

AgEq
g/t

Ag
g/t

Pb
%

Zn
%

AgEq
Million oz

Ag
Million oz

Pb
Million lb

Zn
Million lb

Open
Pit

TM_Zone

269,000

229.8

152.7

0.56

1.88

1.985

1.319

3.3

11.1

S_Zone

127,000

334.5

262.1

0.36

1.90

1.368

1.072

1.0

5.3

KL_Zone

1,026,000

110.9

35.7

0.11

2.17

3.659

1.178

2.5

49.0

K_Zone

265,000

79.8

14.2

0.09

1.90

0.680

0.121

0.5

11.1

M_Zone

202,000

173.6

98.1

0.58

1.82

1.128

0.637

2.6

8.1

Total

1,889,000

145.2

71.3

0.24

2.03

8.820

4.327

9.9

84.7

Notes:

  1. The effective date of this mineral resource statement is December 31, 2023.

  2. The qualified person responsible for this Mineral Resource Estimate (MRE) is Charley Murahwi, M.Sc., P.Geo., FAusIMM.

  3. The mineral resources have been estimated in accordance with the CIM Best Practice Guidelines (2019) and the CIM Definition Standards (2014)

  4. Ordinary Kriging (OK) interpolation was used with a single block size of 5m x 5m x 5m.

  5. The mineral resource results are presented in-situ within the optimized pit. Mineralized material outside the pit has not been considered as a part of the current MRE.

  6. The tonnes and metal contents are rounded to reflect that the numbers are an estimate and any discrepancies in the totals are due to the rounding effects.

  7. AgEq g/t = [(Ag ppm x %Recovery x Price/g) + (Pb ppm x %Recovery x Price/g) + (Zn ppm x %Recovery x Price/g)]/ (Ag Price/g x %Recovery).

  8. Mineral resources unlike mineral reserves do not have demonstrated economic viability. The estimate of mineral resources may be materially affected by environmental, permitting, legal, title, taxation, socio-political, marketing, or other relevant issues.

A summary of the SHP mineral resource economic and technical parameters and/or assumptions is presented in Table 2 below.

Table 2
Summary of the SHP Economic and Technical Parameters/Assumptions

 

Item

Units

Extended

 

Mining cost

CAD$/t all material

10.00

 

Processing cost

CAD$/t crude feed

25.50

 

G&A cost

CAD$/t crude feed

5.00

 

Exchange rate

CAD$ to US$

0.75

 

Ag price

USD$/oz

23.30

 

Pb price

US$/metric tonne

1,892

 

Zn price

US$/metric tonne

2,505

 

Metallurgical recovery (all metals)

Percentage

80

 

Overall pit slope

Degrees

45

 

 

Further details on the new mineral resource estimate at Silver Hart and the use of the above-mentioned parameters will be provided in the upcoming NI 43-101 report by MICON International Limited who undertook the MRE estimate on behalf of the Company.