Mineral Facts and Problems: 1960 Edition Page: 67
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Metal and oxide imports come chiefly from
the United Kingdom, Yugoslavia, and Bel-
gium-Luxembourg. Both the United Kingdom
and Belgium-Luxembourg have large smelter
capacity fed entirely by imported ores. They
produce metal and oxide primarily to supply
internal and European needs, but surpluses are
sold on the U.S. market. Yugoslavia, how-
ever, has an ore-reserve base that supplies its
smelters. Metal comes to the United States be-
cause Yugoslavia needs dollar funds.
Imports of all categories of antimony totaled
9,800 tons in 1958. Nearly 70 percent of the
imported ores and concentrates came from the
Western Hemisphere; Mexico and Bolivia
alone furnished 63 percent. Approximately 30
percent came from the Union of South Africa.
The United Kingdom and Yugoslavia were the
largest contributors of metal, supplying 35 per-
cent and 33 percent, respectively. Other Euro-
pean countries supplied 24 percent, and the re-
maining metal imports came from Mexico and
Exports of antimony in 1958, as in previous
years, were small.
About 65 percent of the U.S. smelter output
of primary antimony is derived from imported
antimony ores and concentrates. An additional
12 percent is recovered from foreign metallif-
erous ores and intermediate smelter products
at domestic lead refineries. Thus, it is evident
that domestic smelters are three-fourths de-
pendent on foreign ores. Moreover, U.S. de-
pendency does not end with the acquisition of
smelter feed. In 1958, 45 percent of the do-
mestic supply of metal, oxide, and sulfide was
imported. In summary, approximately 90 per-
cent of the total supply of primary antimony
available in the United States in 1958 origi-
nated in foreign ores.
The two factors that combine to classify an-
timony as a strategic material are (1) the
nearly complete dependency of the United
States on foreign supply and (2) important
military uses in flameproofing compounds, cam-
ouflage and fire-retardant paints, ammunition
components, and bearings and batteries.
The erection of the Laredo (Tex.) smelter in
1930 and the restriction of Chinese shipments
after the Japanese conquest in 1937 shifted the
source of U.S. imports of ore chiefly to Mexico,
where concentrates are now transported by rail.
Expansion of mining in Bolivia during World
War II further strengthened the U.S. ore sup-
ply position from Western Hemisphere sources.
However, the large supplementary require-
ments for antimony in metal and oxide, as well
as contributory quantities of ore, continue to
come from distant overseas sources.
Under various congressional authorizations
in times of national need the Government has
stockpiled antimony, controlled prices, allo-
cated supply, and explored for domestic ore de-
posits. During World War II, the Reconstruc-
tion Finance Corporation and the Metals Re-
serve Company procured stocks of strategic
and critical materials, including antimony,
from China, Mexico, and Bolivia. Under the
Strategic Minerals Act, the Bureau of Mines
succesfully conducted ore-search projects that
augmented domestic antimony resources. The
Office of Price Stabilization administered pric-1
ing during the Korean conflict, and the De-
fense Minerals Exploration Administration
was inaugurated to grant loans to private in-
dustry for approved exploration.
Since 1900, prices for antimony have ranged
from 4 cents per pound in 1922 to 52 cents in
1951. Referred to the 1958 dollar, these prices
represent 71/2 cents and 53 cents, respectively.
Related to the standard 1948 dollar, the price
has fluctuated from a high of 47% cents to a
low of 6% cents. Prices quoted early in 1959
ranged from 23 to 32 cents for metal and 11 to
16 cents per pound of antimony contained in
marketable ore concentrates.
TAXES INCLUDING PERCENTAGE DEPLETION
Depletion allowance to domestic antimony
miners is 23 percent. Domestic companies own-
ing foreign antimony mines that are an inte-
gral part of their domestic facilities may re-
ceive a 15-percent depletion allowance.
Ore and concentrates enter the United States
duty free. Imports of metal are dutiable at the
rate of 2 cents per pound; oxide, 1 cent; and
liquated sulfide, 1/ cent per pound.
Transportation cost is a limiting considera-
tion in many antimony mining districts of the
world, often representing more than one-third
the total value of the concentrate. Estimated
cost to move a ton of Bolivian antimony ore
concentrates from the millsite to New York is
$57. A ton of concentrates from Consolidated
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United States. Bureau of Mines. Mineral Facts and Problems: 1960 Edition, report, 1960; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc38790/m1/75/: accessed July 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.