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U.S. Government National Defense Stockpile Tungsten Statistics In 2007

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TABLE 2
U.S. GOVERNMENT NATIONAL DEFENSE STOCKPILE TUNGSTEN STATISTICS IN 20071, 2
(Metric tons of tungsten content)
 
    Inventory, yearend3   Annual   Sales   Inventory decrease4
Fiscal   Calendar Materials Fiscal   Calendar Fiscal   Calendar
Material   year5   year   Plan5   year5   year   year5   year
Ores and concentrates 21,300 21,200 3,630 1,280 1,100 1,980 1,740
Ferrotungsten -- -- 136 -- -- -- --
Tungsten metal powder 268 235 136 34 34 -3 31
Total   21,600   21,400   3,900   1,310   1,140   1,980   1,780
-- Zero.
1Data are rounded to no more than three significant digits; may not add to totals shown.
2Includes stockpile- and nonstockpile-grade materials.
3Uncommitted inventory only. Does not include material committed for sale pending shipment.
4From previous year. Yearend inventories for 2006 included committed material; yearend inventories for 2007
did not. Negative number represents inventory increase.
5Twelve-month period ending September 30, 2007.
Source: Defense National Stockpile Center.

Source: United States Geological Survey Mineral Resources Program


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