Table 3.--Primary and secondary copper refined in the United States, by process and type (Metric tons) ------------------------------------------------------------------------------------------------------------------------- Process and type 1970 1971 1972 1973 1974 1975 1976 1977 ------------------------------------------------------------------------------------------------------------------------- Primary: Electrolytic .......... 1,410,515 1,289,671 1,507,135 1/1,526,500 1/1,369,178 1/1,177,530 1/1,213,788 1/1,131,164 Electrowon ............ 18,155 17,852 18,500 22,037 2/20,980 2/28,042 2/94,070 2/125,134 Fire refined .......... 172,596 136,518 173,734 2/146,527 2/110,852 2/103,839 2/88,579 2/101,018 ------------------------------------------------------------------------------------------------- Total .............. 1,601,266 1,444,041 1,699,369 1,695,064 1,501,010 1,309,411 1,396,437 1,357,316 ------------------------------------------------------------------------------------------------- Secondary:3/ Electrolytic .......... 393,169 293,849 309,877 342,483 4/361,945 4/226,559 4/239,195 4/210,095 Fire refined .......... 70,955 69,626 74,083 79,469 88,842 80,994 101,140 139,550 ------------------------------------------------------------------------------------------------- Total .............. 464,124 363,475 383,960 421,952 450,787 307,553 340,335 349,645 ------------------------------------------------------------------------------------------------- Grand total ... 2,065,390 1,807,516 2,083,329 2,117,016 1,951,797 1,616,964 1,736,772 1,706,961 ------------------------------------------------------------------------------------------------- Primary materials:5/ Domestic .............. 1,379,994 1,279,606 1,524,445 1,540,706 1,288,953 1,166,811 1,290,673 1,280,036 Foreign ............... 221,272 164,435 174,924 154,358 212,057 142,600 105,764 77,280 Secondary materials .... 464,124 363,475 383,960 421,952 450,787 307,553 340,335 349,645 ------------------------------------------------------------------------------------------------- Total .............. 2,065,390 1,807,516 2,083,329 2,117,016 1,951,797 1,616,964 1,736,772 1,706,961 ------------------------------------------------------------------------------------------------- 1978 1979 1980 1981 1982 1983 1984 1985 ------------------------------------------------------------------------------------------------- Primary: Electrolytic1/ ........ 1/1,246,137 1/1,311,429 1/1,013,153 1,308,373 1,053,860 1,091,551 1,073,898 966,780 Electrowon ............ 2/98,547 2/100,132 2/117,549 2/161,086 2/131,541 101,936 100,180 90,461 Fire refined .......... 2/104,372 2/105,091 2/84,469 74,561 41,060 W W W ------------------------------------------------------------------------------------------------- Total .............. 1,449,055 1,516,652 1,215,172 1,544,020 1,226,461 1,193,487 1,174,078 1,057,241 ------------------------------------------------------------------------------------------------- Secondary:3/ Electrolytic .......... 4/323,397 4/396,226 4/356,928 4/389,096 4/383,095 6/403,527 184,747 264,834 Fire refined .......... 96,706 102,233 158,155 93,741 84,454 W 145,334 106,953 ------------------------------------------------------------------------------------------------- Total .............. 420,103 498,459 515,083 482,837 467,549 403,527 330,081 371,787 ------------------------------------------------------------------------------------------------- Grand total ... 1,869,157 2,015,111 7/1,730,254 2,026,857 1,694,010 1,597,014 1,504,159 1,429,028 ------------------------------------------------------------------------------------------------- Primary materials:5/ Domestic .............. 1,327,371 1,412,795 1,126,215 1,430,213 1,064,215 1,015,065 1,079,062 1,003,713 Foreign ............... 121,684 103,857 88,957 113,807 162,246 178,422 95,016 53,528 Secondary materials .... 420,103 498,459 515,083 482,837 467,549 403,527 330,081 371,787 ------------------------------------------------------------------------------------------------- Total .............. 1,869,158 2,015,111 7/1,730,254 2,026,857 1,694,010 1,597,014 1,504,159 1,429,028 ------------------------------------------------------------------------------------------------- 1986 1987 1988 1989 1990 ------------------------------------------------------------ Primary: Electrolytic1/ ........ 948,623 965,621 1,178,028 1,164,948 1,183,170 Electrowon ............ 125,357 161,287 227,992 311,885 393,463 Fire refined .......... W W W W W ------------------------------------------------------------ Total .............. 7/1,073,981 1,126,908 1,406,020 1,476,833 1,576,633 ------------------------------------------------------------ Secondary:3/ Electrolytic .......... 292,686 311,312 347,442 376,595 328,196 Fire refined .......... 113,258 103,426 98,985 103,424 112,561 ------------------------------------------------------------ Total .............. 405,944 414,738 446,427 7/480,018 440,757 ------------------------------------------------------------ Grand total ... 1,479,925 1,541,646 1,852,447 7/1,956,851 2,017,390 ------------------------ See footnotes at end of table. Table 3.--Primary and secondary copper refined in the United States, by process and type--Continued (Metric tons) ------------------------------------------------------------------------------------------------------------------------- Process and type 1986 1987 1988 1989 1990 ------------------------------------------------------------------------------------ Primary materials:5/ Domestic .............. 1,032,968 6/1,126,908 1,282,370 1,351,748 1,502,014 Foreign ............... 41,013 W 123,650 125,085 74,620 Secondary materials .... 405,944 414,738 446,427 480,018 440,757 ------------------------------------------------------------ Total .............. 1,479,925 1,541,646 1,852,447 1,956,851 7/2,017,390 ------------------------------------------------------------------------------------------------------------------------- W Withheld to avoid disclosing company proprietary data. 1/Includes copper from foreign sources processed by means other than electrolytic to avoid disclosing company proprietary data. 2/Excludes copper refined from foreign sources to avoid disclosing proprietary data; included in "Primary: Electrolytic." 3/Prior to 1978, allocations by process type are approximate owing to distribution by plant classification rather than process. 4/Includes copper electrowon from secondary sources to avoid disclosing company proprietary data. 5/Foreign and domestic source is based on reported consumption at smelters and refineries. 6/Includes primary materials from foreign sources to avoid disclosing company proprietary data. 7/Data do not add to total shown because of independent rounding.