Cantung/Mactung largest Tungsten reserves in N.America
Cantung Mine
• NATC owns 100% of the Cantung Mine located in the south-west corner of NWT. Production for the year ended
September 30, 2014 was 274,000 MTUs of WO3 (2013 – 287,000 MTUs). The Company produced 206,000
MTUs for the 9 months ended June 30, 2015.
• Cantung includes 7 surface mineral leases and 11 contiguous unpatented claims covering 15,294 acres which
consist primarily of disseminated scheelite-chalcopyrite bearing calc-silicate skarn deposits.
• A September 2014 NI43-101 technical report disclosed probable mineral reserves of 1.8 million tons (@0.81%
WO3) which would allow the mine life to be extended beyond 2017. The report also disclosed indicated resources
of 3.84 million tonnes (@0.97% WO3) (including the mineral reserves noted above) and inferred mineral resources
of 1.4 million tonnes (@0.80% WO3). There is also an opportunity to recover an estimated 900,000 MTUs of WO3
from tailings ponds using existing flotation circuits and infrastructure which is not a resource as defined under
NI43-101.
• NATC has made significant investments in upgrading facilities and equipment in recent years. Cantung’s assets
include an underground operation and an open pit, mining equipment (trucks, scoop trams, drills, excavators),
power generation plant, milling and concentrator plant (gravity and flotation cell circuits), backfill plant, waste water
treatment plant, tailings ponds, maintenance shop, warehouse, camp buildings, fuel storage facilities, light
vehicles and an airstrip.
Mactung Deposit
• NATC owns a promising tungsten development property at Mactung, which is located 160 km north-west of the
Cantung property on the Yukon and NWT border. The property consists of 113 mineral claims and 38 mining
leases.
• Based on the April 2009 NI43-101 technical report, Mactung has an initial estimated life of 11.2 years with the
potential to increase to 17 years. Estimated resources include indicated resources of 33.0 million tonnes
(@0.88% WO3), inferred resources of 11.0 million tonnes (@0.78% WO3) and probable mineral reserves of 8.5
million tonnes (@1.082% WO3) included in the indicated resources.
• A surface mining scoping study has recently been prepared by an engineering firm which suggests significantly
improved economics of the mine, as compared with the previously filed NI43-101 report.
• Based on the scoping study, this world class deposit would be one of the world’s lowest cost producers of
tungsten, resulting in a short-term payback of invested capital and a high project IRR.
• In 2014, NATC obtained a positive environmental assessment of the Mactung project from the Federal and Yukon
Governments.
