North American Tungsten Corporation Ltd.
TSX VENTURE : NTC

North American Tungsten Corporation Ltd.

April 27, 2007 20:23 ET

North American Tungsten Corporation Ltd.: NI 43-101 Compliant Mineral Resource Estimate for the Mactung Project-Filed on SEDAR

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - April 27, 2007) - North American Tungsten Corporation Ltd. (the "Company" or "NATC") (TSX VENTURE:NTC) is pleased to announce that the Technical Report in compliance with National Instrument 43-101 ("NI 43-101") on the Mactung Tungsten Deposit, MacMillan Pass, Yukon, prepared for North American Tungsten Corporation Limited by Scott Wilson Roscoe Postle Associates Inc. dated April 18, 2007 as previously released on March 14, 2007, has been filed for public access on SEDAR.

HIGHLIGHTS:

- INDICATED AND INFERRED MINERAL RESOURCE ESTIMATE CONFIRMS THAT THE MACTUNG PROJECT IS THE WORLD'S LARGEST UNDEVELOPED HIGH GRAD TUNGSTEN SKARN

- INDICATED MINERAL RESOURCE ESTIMATE OF 33,029,000 tonnes grading 0.88% WO3

- INFERRED MINERAL RESOURCE ESTIMATE OF 11,857,000 tonnes grading 0.78% WO3

- Included in the above estimate are 22,198,000 TONNES INDICATED AND 4,631,000 TONNES INFERRED with an average grade over 1.0% WO3

- TOTAL CONTAINED TUNGSTEN (WO3) ESTIMATED AT 29,000,000 MTU's indicated and 9,200,000 MTU'S INFERRED

- NI 43-101 COMPLIANT INDICATED AND INFERRED MINERAL RESOURCE ESTIMATE USING A CUT-OFF GRADE OF 0.5% WO3 OF WHICH SCOTT WILSON RPA CONSIDERS APPROPRIATE FOR THE LOCATION AND COST PROFILE THAT CAN BE EXPECTED FOR THE MACTUNG PROJECT

The mineral resource estimates for the Mactung project are based on information from surface and underground drilling supplemened in part by surface and underground mapping. The collar database provided to Scott Wilson RPA contains 168 drill holes, of which 161 were used for grade interpolation. Those drill holes within the modeled area cover a 1,000m (E-W) by 700m (N-S) area. Holes vary in length from 5m to 450m and the average spacing is estimated at 50m. Scott Wilson RPA completed a 3D solid model or wireframe interpretation of the 4 mineralized zones at Mactung. Grades and thicknesses were modeled using a 2D gridded seam model (GSM) in which each zone or portion thereof is represented by a separate level or seam comprised of individual blocks 10m (EW) x 10m (NS) in size. The model contains two separate estimates of grade (Kriged and Polygonal) and a single estimate of vertical thickness for each block based on the interpreted mineralized envelopes. A minimum thickness of 4.5m has been applied to the model and grades have been diluted to the minimum thickness where necessry. While polygonal grade estimates are also shown, in Scott Wilson RPA's opinion, the kriged estimates provide superior assessments of grade variability and distribution. Polygonal estimates are generally lower in tonnage and higher in grade at lower cut-offs. The Mactung Project, 100% owned by the Company, is located in the Yukon/NT, 160km northwest of the Company's 100% owned Cantung Mine.

About North American Tungsten Corporation Ltd.

North American Tungsten Corporation Ltd. is a publicly listed Tier 1 junior resource company engaged primarily in the acquisition, exploration, development, and operation of Tungsten and other related mineral properties in the Northwest Territories and Yukon Territory. The Company is currently in production at the Cantung Mine and owns 100% of the Mactung project, which borders the Yukon and Northwest Territories, Canada. The Cantung Mine has a 43-101 compliant indicated resources of approximately 3 M tons grading at 1.21 %WO3 (3.5 M STU'S); 734,000 tons of inferred resources grading at 0.74 %WO3 (543,000 STU's); and approximately 1 M tons of probable reserves grading at 1.17 %WO3 (1.2 M STU'S). The Mactung Project is 43-101 compliant, with an indicated and inferred mineral resource estimate confirming that it is the largest undeveloped high grade tungsten-skarn deposit in the world.



INDICATED MINERAL RESOURCES ESTIMATES SHOWN AT INCREASING CUT-OFFS

North American Tungsten - Mactung Project
--------------------------------------------------------------------------
KRIGED POLYGONAL
Vertical Vertical
Cut-off Thick. Kt Thick. Kt
%WO3 Kt %WO3 (m) WO3 Kt %WO3 (m) WO3
--------------------------------------------------------------------------

0.5 33,029 0.88 24.1 290.0 29,794 0.96 24.6 285.4
0.6 27,927 0.94 24.2 262.2 26,246 1.01 24.5 266.0
0.7 22,198 1.01 24.4 224.8 22,042 1.08 24.4 239.0
0.8 15,571 1.13 24.7 175.6 17,268 1.18 24.2 203.1
0.9 10,423 1.27 25.7 132.2 12,521 1.30 24.3 163.1
1.0 8,245 1.36 26.7 111.8 9,321 1.42 24.9 132.5
--------------------------------------------------------------------------

Notes:
1. CIM definitions were followed for mineral resources.
2. Mineral resources are estimated at a block cut-off grade of 0.5 %WO3.
3. Polygonal estimates shown for comparison purposes only.
4. Differences in totals due to round-off.


INFERRED MINERAL RESOURCES ESTIMATES SHOWN AT INCREASING CUT-OFFS

North American Tungsten - Mactung Project
--------------------------------------------------------------------------
KRIGED POLYGONAL
Vertical Vertical
Cut-off Thick. Kt Thick. Kt
%WO3 Kt %WO3 (m) WO3 Kt %WO3 (m) WO3
--------------------------------------------------------------------------

0.5 11,857 0.78 22.6 92.0 10,778 0.89 23.0 96.0
0.6 9,260 0.84 23.0 78.0 9,115 0.95 23.3 86.5
0.7 6,614 0.92 22.8 60.9 7,447 1.01 22.9 75.6
0.8 4,631 1.00 21.4 46.1 5,433 1.11 23.7 60.3
0.9 2,929 1.08 22.1 31.7 3,099 1.30 22.5 40.3
1.0 1,658 1.20 21.1 19.9 2,356 1.41 22.8 33.3
--------------------------------------------------------------------------

Notes:
1. CIM definitions were followed for mineral resources.
2. Mineral resources are estimated at a block cut-off grade of 0.5 %WO3.
3. Polygonal estimates shown for comparison purposes only.
4. Differences in totals due to round-off.


The Qualified Persons for Scott Wilson RPA's report are Mr. Peter A. Lacroix, P. Eng, Associate Mining Consultant and R. Barry Cook, P. Eng.

ON BEHALF OF THE BOARD OF DIRECTORS

Stephen M. Leahy, Chairman & CEO

Cautionary Note

Safe Harbour Statement under the United States Private Securities Litigation Reform Act of 1995 and similar Canadian legislation: Except for the statements of historical fact contained herein, the information presented contains "Forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995 and similar Canadian legislation. Often, but not always, forward-looking statements can be identified by the use of words such as "plans", "expects", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates", "believes", or variation of such words and phrases that refer to certain actions, events or results to be taken, and other factors which may cause the actual results, performance or achievements of North American Tungsten Corporation Ltd. To be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. Such factors include, among others, the actual results of reclamation activities, the estimation or realization of mineral reserves and resources, the timing and amount of estimated future production, costs of production, capital expenditures, future prices of commodities, possible variations in ore grade or recovery rates, efficacy and efficiency of milling process, failure of plant, equipments or processes to operate as anticipated, accidents, labour disputes and other risks in the mining industry. Although North American Tungsten Corporation Ltd. has attempted to identify important factors that could cause actions, events or results to differ materially from those described in forward-looking statements, there may be other factors that cause actions, events or results not to be as anticipated, estimated or intended. There can be no assurance that such statements will prove to be accurate as actual results and future events could differ matrially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements contained herein and in North American Tungsten Corporation Ltd.'s other filing incorporated by reference.

Cautionary Note to United States Investors Concerning Estimates of Measured, Indicated and Inferred Resources: This press release may use the terms "Measured", "indicated" and "inferred" Resources. United States investors are advised that while such terms are recognized and required by Canadian regulators, the United States Securities and Exchange Commission does not recognize them. "Inferred Mineral 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 Mineral Resource will ever be upgraded to a higher category. Under Canadian rules, estimates of Inferred Mineral 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 Mineral Resources will everbe converted into Mineral Reserves. United States investors are also cautioned not to assume that all or any part of an Inferred Mineral Resource exists, or is economically or legally mineable.

The TSX Venture Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of this release.

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