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Trilogy Metals Files New Technical Report for the Arctic Resource
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PR Newswire
VANCOUVER, Nov. 9, 2017
VANCOUVER, Nov. 9, 2017 /PRNewswire/ - Trilogy Metals Inc. (TSX, NYSE-MKT: TMQ) ("Trilogy Metals" or "the Company") has filed a National Instrument 43-101 technical report with the Canadian securities regulators relating to the Arctic Project which supports the resource estimate previously announced on April 25, 2017 which is of sufficient quality to support the Arctic pre-feasibility study ("PFS"). The technical report is entitled NI 43-101 Technical Report on the Arctic Project, Northwest Alaska, USA and prepared by Bruce Davis, Robert Sim and Jeff Austin, all of whom are "Qualified Persons" under NI 43-101 (the "Technical Report"). The Arctic Project is estimated to contain at a base case of 0.5% copper equivalent cut-off grade, an in-pit indicated resource of approximately 36 million tonnes of copper grading 3.07% (see Table 1) that are expected to form the basis for the PFS and the Company's first reserves in the Ambler Mining District. The PFS is on target to be released in the first quarter of 2018.
Rick Van Nieuwenhuyse, President and CEO of Trilogy Metals, commented, "We are excited in the progress made to date towards finalizing the pre-feasibility study for our high-grade Arctic Project in Q1 2018. Arctic is pretty special – we predict it will be one of the highest grade open pit copper projects in the world. Arctic is also located in the geographic center of a 100 Km long belt containing over two dozen known grade polymetallic deposits and occurrences. It is not hard to envision a central milling concept with the other deposits potentially feeding the mill beyond the mine life at Arctic. With the Ambler Mining District Industrial Access Project ("AMDIAP") now in the formal permitting process and public scoping meetings taking place, it is exciting to see the Ambler Access Road finally taking shape."
Table 1. Estimate of Mineral Resources for the Arctic Deposit
| | | Average Grade: | Contained metal: | ||||||||
| Class | M | Cu % | Pb% | Zn% | Au g/t | Ag g/t | Cu Mlbs | Pb Mlbs | Zn Mlbs | Au koz | Ag Moz |
| Indicated | 36.0 | 3.07 | 0.73 | 4.23 | 0.63 | 47.6 | 2,441 | 581 | 3,356 | 728 | 55 |
| Inferred | 3.5 | 1.71 | 0.60 | 2.72 | 0.36 | 28.7 | 131 | 47 | 210 | 40 | 3 |
- Base Case cut-off grade of 0.5% CuEq.
- Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability. There is no certainty that all or any part of the Mineral Resources will be converted into Mineral Reserves. See "Cautionary Note to United States Investors."
- Resources stated as contained within a pit shell developed using metal prices of US$3.00/lb copper, US$0.90/lb lead, US$1.00/lb zinc, US$1300/oz gold, US$18/oz silver, mining costsof US$3.00/tonne, milling and G&A costs of US$35/tonne, metallurgical recoveries of 92% for copper, 77% for lead, 88% for zinc, 63% for gold, 56% for silver and an average pit slope of 43 degrees.
- Inferred resources have a great amount of uncertainty as to whether they can be mined legally or economically. It is expected that a majority of the inferred resources will be converted to indicated mineral resources with continued exploration.
The sensitivity of mineral resources, contained within the resource limiting pit shell, is demonstrated by listing resources at a series of cut-off thresholds as shown in Table 2.
Table 2. Sensitivity of Mineral Resources to Cut-off Grade
| | | Average Grade: | Contained metal: | ||||||||
| Cut-off CuEq% | M | Cu % | Pb% | Zn% | Au g/t | Ag g/t | Cu Mlbs | Pb Mlbs | Zn Mlbs | Au koz | Ag Moz |
| Indicated | |||||||||||
| 0.25 | 36.0 | 3.07 | 0.73 | 4.22 | 0.63 | 47.61 | 2,441 | 582 | 3,356 | 729 | 55 |
| 0.5 | 36.0 | 3.07 | 0.73 | 4.23 | 0.63 | 47.62 | 2,441 | 581 | 3,356 | 728 | 55 |
| 0.75 | 35.9 | 3.08 | 0.73 | 4.23 | 0.63 | 47.72 | 2,440 | 582 | 3,355 | 728 | 55 |
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