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Bureau of Mines / Minerals yearbook: Metals and minerals 1977
Year 1977, Volume 1 (1977)

DeHuff, Gilbert L.
Manganese,   pp. 617-628 PDF (1.6 MB)


Page 623

 MANGANESE 623 
Table 7.—U.S. imports' of manganese ore (35% or more Mn), by country
 GrossCountry weight 
 (short 
 tons) 
1976 
1977 
Mn 
content 
(short 
tons) 
sands) 
Gross 
weight 
(short 
tons) 
Mn 
content 
(short 
tons) 
Value 
(thou 
sands) 
Australia  234,636 117,367 $12,048 25,551 13,834 $1,699 
Brazil  333,479 161,108 18,033 231,742 111,639 11,943 
Congo'  26,572 13,286 2,238 —— ——
——
Gabon3  513,078 256,412 31,731 490,442 245,221 34,032 
Mexico ' ... 39,831 18,485 1,994 87,752 34,882 2,957 
Morocco  25,782 18,688 1,545 31,606 17,070 2,302 
South Africa, Republic of  137,316 60,963 5,890 34,454 16,882 1,928 
Zaire  6,118 2,936 148 29,400 14,700 1,494 
 Total 1,316,812 649,245 73,627 930,947 454,228 ~56,357 
' Quantities for general imports and imports for consumption were identical.
' Actually from Gabon. 
' In addition in 1976, Gabon imports reported as Congo were 26,572 tons (gross
weight). 4Data do not add to total shown because of independent rounding.
Table 8.—U.S. imports for consumption of ferromanganese, by country
Country 
1976 
1977 
Gross 
weight 
(short 
tons) 
Mn 
content 
(short 
tons) 
ue 
san~ 
Gross 
weight 
(short 
tons) 
Mn 
content 
(short 
tons) 
th ue 
~ 
~°~'  
Belgium-Luxembourg                        
Brazil                                   
33,136 
7,578 
25,338 
5,802 
$9,834 
1,855 
416 
37,977 
308 
29,161 
$119 
9,551 
Canada                                  
Chile                                    
10,566 
95 
8,294 
74 
3,902 
31 
28,523 
~ 
22,155 
7,316 
~ 
France                                  
Germany, Federal Republic of                 
India                                    
Italy                                    
Japan                                   
Mexico                                  
119,762 
20 
12,115 
439 
114,111 
44 
92,556 
17 
9,140 
351 
88,680 
33 
38,314 
16 
2,965 
230 
40,786 
19 
140,392 
23,623 
5,559 
~ 
45,370 
26,188 
108,638 
18,362 
4,236 
36,364 
20,345 
40,690 
6,123 
1,422 
~ 
17,976 
7,195 
Norway                                  
Portugal                                 
South Africa, Republic of                     
Spain                                    
Taiwan                                  
UnitedKingdom                           
Yugoslavia                               
Total'                                 
27,770 
10,957 
174,183 
19,413 
5,677 
~ 
1,543 
21,775 
8,340 
135,599 
15,942 
4,288 
~ 
1,204 
7,594 
2,485 
46,636 
8,188 
1,403 
~ 
440 
19,278 
35,467 
141,375 
15,947 
5,288 
1 
9,016 
14,945 
27,231 
110,801 
12,579 
3,968 
(' ) 
6,986 
5,272 
9,225 
40,596 
6,480 
1,530 
(' ) 
2,168 
537,409 
417,433 
164,698 
534,423 
416,081 
155,662 
' Less than 1/2 unit. 
' Data may not add to totals shown because of independent rounding. 
Imports for consumption classified as the Netherlands. 
"manganese compounds, other" totaled Tariffs.—The duty
on manganese
ore 5,059 short tons compared with 3,467 tons in from most nations, 0.12
cent per pound of 
1976. The sources, gross weights, and aver- contained manganese, remained
suspended; age values per pound in 1977 follow: Japan, the statutory rate
continued at 1 cent per 3,827 tons (38 cents); Belgium, 814 tons (34 pound
of contained manganese. The statutocents); the United Kingdom, 209 tons (4
ry rate continued to apply to ore from the cents); Ireland, 140 tons (40
cents); the U.S.S.R. and the People's Republic of China. Federal Republic
of Germany, 62 tons (84 The respective rates of duty for metal and cents);
Greece, 4 tons (44 cents); and Cana- the principal manganese ferroalloys
reda, 3 tons (12 cents). The imports from mained unchanged. Qualifying developing
Japan, Belgium, Ireland, and Greece appear nations continued to receive the
benefit of to have consisted largely, if not entirely, of duty-free treatment
under the Generalized synthetic manganese dioxide. Manganese System of Preferences
(GSP) with respect to sulfate imports totaled 52 tons, of which 30 U.S. imports
of ferromanganese and silicotons was from Japan and 22 tons was from manganese.


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