Category

Tonnes
(000)

Gold Grade
(g/t)

Contained Gold
(ounces)

4,939

1.66

264,000

3,469

3.22

359,000

 22,740

2.92

2,135,000

31,148

2,758,000

Category

Gold Cut-off
(000)

Tonnes
(000)

Gold Grade
(g/t)

Contained Gold
(ounces)

2.30

132 

3.08

13,100

Category

Gold Cut-off
(g/t)

Tonnes
(000)

Gold Grade
(g/t)

Contained Gold
(ounces)

0.60

15

1.74

850

2.30

5,950

3.40

650,000

5,965

650,850

Notes to Resources
The terms “Mineral Reserve”, “Proven Mineral Reserve” and “Probable Mineral Reserve” used in this website are Canadian mining terms as defined in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects under the guidelines set out in the Canadian Institute of Mining, Metallurgy and Petroleum (the “CIM”) Standards on Mineral Resources and Mineral Reserves Definitions and Guidelines adopted by the CIM Council on August 20, 2000. The terms “Mineral Resource”, “Measured Mineral Resource”, “Indicated Mineral Resource”, and “Inferred Mineral Resource” used in this website are Canadian mining terms as defined in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects under the guidelines set out in the CIM Standards. Mineral reserves and mineral resources for Kemess South have been estimated in accordance with the definitions contained in the Canadian Institute of Mining, Metallurgy and Petroleum (CIM) Standards and National Instrument 43-101. 

All mineral resources are exclusive of mineral reserves.

Mineral resources which are not mineral reserves do not have demonstrated economic viability.

Mineral reserves and resources are rounded to 1,000 tonnes, 0.01 g/t gold and 1,000 ounces. Minor discrepancies in summations may occur due to rounding.

1. The open pit gold cut-off considers ore-based operating costs of US$12.11/tonne  (processing, G&A), a gold recovery of 91%, a US$0.68/tonne stockpile rehandle cost and royalty costs as appropriate within the claim boundaries. A 0.62 gram per tonne (“g/t”) cut-off was applied within royalty free claims, 0.68 g/t cut-off and 0.69 g/t cut-off applied to claims subject to royalty agreements.
2. A 1.7 g/t gold cut-off grade was applied to the underground resource model for the sublevel cave and longhole shrinkage mining methods based on 15% dilution, mining costs of Cdn$21.74, process costs of Cdn$11.40 and G&A costs of Cdn$2.75 and a gold recovery of 92.5%.  A 2.3 g/t gold cut-off grade was applied to the longhole retreat mining method to account for the additional capital development and lower productivity of this mining method. 
3. Open pit mineralized wireframes constructed based on approximately 0.60 g/t gold cut-off grade and a minimum true thickness of 5m.
4. Underground mineralized wireframes were constructed based on approximately 1.70 g/t gold cut-off grade and 1.3 g/t gold incremental cut-off grade and minimum true thickness of 3m. 

Mineral resource estimates were prepared by Carl Edmunds, Exploration Manager, Northgate Minerals Corporation.

Note to US Investors
This website uses the terms “measured”, “indicated” and “inferred” resources. United States investors are advised that while such terms are recognized and required by Canadian regulators, the SEC does not recognize them. Inferred resources have a great amount of uncertainty as to their existence, and as to their economic and legal feasibility. It cannot be assumed that all or any part of an inferred resource will ever be upgraded to a higher category. Under Canadian rules, estimates of inferred resources may not form the basis of feasibility or other economic studies. United States investors are cautioned not to assume that all or any part of measured or indicated resources will ever be converted into mineral reserves. United States investors are also cautioned not to assume that all or any part of an inferred resource exists, or is economically or legally mineable.