CMC Announces Drill Results from Silver Hart Summer Drill Program

Vancouver, British Columbia--(Newsfile Corp. - October 11, 2017) - CMC Metals Ltd. - (TSXV: CMB) ("the Company") - is pleased to announce results from the summer 2017 drilling program at the Company's 100% owned Silver Hart silver-zinc-lead property in southwest Yukon. The drilling program was completed in July 2107 and consisted of 843m of drilling.  Core samples were collected and significant intervals are summarized in the following release.

2017 Program

A total of 843 m of diamond drilling was completed at the Silver Hart property.  The drilling program was executed by Longford Exploration Services Ltd. of Vancouver, BC. Drill holes were designed to target the M, KL, and TM zones. Drilling was designed to confirm and infill historic results and extend known mineralization. Fourteen holes were completed to depths ranging from 43 to 79 m. One hole was vertical and the remaining were inclined, ranging from -45 to -70o

A total of 153 half-core samples were collected. Samples averaged 1.15 m in length. Seventeen QC samples consisting of CRMs and coarse blanks were inserted into to the sample stream prior to shipping samples to the prep-lab. 

Drilling was completed by Paycore Enterprises Ltd. out of McBride, BC utilizing a low-impact track mounted diamond drill rig.

Significant intersections from 2017 sampling of 2017 drill core:

Hole-ID

From (m)

To (m)

Length (m)

Ag g/t

Pb %

Zn %

CMC17-01

15.3

17.3

2

117

4.03

5.11

including

16.65

17.3

0.65

323

12.24

2.09

CMC17-02

12.4

12.8

0.4

487

8.41

13.26

CMC17-03

5.73

5.87

0.14

981

19.72

12.08

CMC17-05

23.3

25.3

2

750

5.87

2.87

CMC17-06

28.35

30.35

2

163

0.10

7.25

including

29.35

30.35

1

128

0.07

9.70

CMC17-07

4.3

8.4

4.1

10

0.18

6.22

and

21.7

22.7

1

34

0.04

7.43

and

30.7

37.8

7

43

0.11

6.96

including

32.7

33.7

1

65

0.21

16.58

CMC17-10

32

33

1

78

0.04

9.07

CMC17-12

34.85

35.85

1

431

0.49

5.76

CMC17-13

42.75

43.25

0.5

325

0.17

13

CMC17-14

32.3

32.5

0.2

775

9.97

13.49

 

*The reader is cautioned that all the above tabled intercepts are as-drilled intercepts and are not equivalent to true widths.

Significant intervals were determined using a 300g silver equivalent cut-off grade calculated using the following assumptions: Ag $18/oz, Zn $1.20/lb, Pb $1.00/lb. The Silver Equivalent Formula assumes 100% recovery of all metals.

All samples collected in 2017 were sent to Bureau Veritas Mineral Laboratories in Whitehorse, Yukon.  Samples were crushed, split and pulverized to -200 mesh, underwent aquaregia digestion and multielement ICP-ES analysis as well as lead collection fire assay using a 30g charge. Overlimit lead was assayed using classical titration.