NorthWest Copper Corp.

Lorraine

The Lorraine Project had been locked away by Teck Resources for more than a decade, until acquired by NorthWest (Sun Metals) in 2020. The Lorraine alkalic porphyry copper system is precious metal enriched and similar to other successful alkalic systems including Galore Creek, New Afton, and Mount Milligan in British Columbia, and Cadia-Ridgeway and Northparkes in Australia.

We believe that this system is open for expansion and through renewed systematic exploration this property has significant potential for new discoveries.

As is common in silica undersaturated alkalic porphyry systems, the mineralization at Lorraine is characterized by:

  • High grades
  • Strong gold +/- silver enrichment
  • Occurs in multiple zones

Lorraine Mineral Reserve Estimates

Domain Class[1]

Tonnes
(000s)

 Avg Cu
Grade (pct)		 Avg Au
Grade (g/t)

Cu
(‘000 lbs)

Au
('000 t. 0z)
Bishop Indicated 2,541 0.58 0.12 32,284 10
Inferred 9,082 0.51 0.10 101,730 29
Lower Main Indicated 3,828 0.45 0.15 38,342 18
Inferred 21,282 0.38 0.07 179,032 49
Upper Main  Indicated 6,584 0.59 0.19 85,467 40
Inferred 15,089 0.44 0.14 147,169 67
Total Indicated 12,952 0.55 0.16 156,093 68
Inferred 45,452 0.43 0.10 427,931 145

[1] Mineral Resources are not Mineral Reserves and do not have demonstrated economic viability. There is no certainty that all or any part of the Mineral Resources estimated will be converted into Mineral Reserves in future. There has been insufficient exploration to define the inferred resources tabulated above as an indicated or measured mineral resource, however, it is reasonably expected that the majority of the Inferred Mineral Resources could be upgraded to Indicated Mineral Resources with continued exploration. The estimate of Mineral Resources may be materially affected by geology, environment, permitting, legal, title, taxation, sociopolitical, marketing or other relevant issues. Inferred Mineral Resources have a great amount of uncertainty as to their existence and as to whether they can be mined economically.

Plan View of Lorraine Block model and section lines. Reasonable prospects for eventual economic extraction as dark grey surface.


Long Section A-A’ looking northeast. “Reasonable prospects for eventual economic extraction” open pit displayed as black line. The main mineralized domains are highlighted with a red line.


Long Section B-B’ looking northeast. “Reasonable prospects for eventual economic extraction” open pit displayed as black line. The main mineralized domains are highlighted with a red line.


Cross section C-C’ looking southeast. “Reasonable prospects for eventual economic extraction” open pit displayed as black line. The main mineralized domains are highlighted with a red line.


Cross section D-D’ looking southeast. “Reasonable prospects for eventual economic extraction” open pit displayed as black line. The main mineralized domains are highlighted with a red line.


Cross section E-E’ looking southeast. “Reasonable prospects for eventual economic extraction” open pit displayed as black line. The main mineralized domains are highlighted with a red line.

June 30, 2022 Lorraine Technical Report

Projects

© 2024 NorthWest Copper Corp.
All rights reserved.