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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $45,644,251 | $38,895,952 | $44,888,834 | $134,862,147 | $45,343,440 | $179,789,884 | $258,260,148 |
| Articles of iron or steel | $5,229,561 | $3,270,004 | $5,563,670 | $4,876,033 | $2,759,998 | $3,119,456 | $6,923,835 |
| Copper and articles thereof | $10,084,225 | $29,006,005 | $29,573,769 | $23,207,760 | $12,142,878 | $33,108,940 | $39,324,427 |
| Nickel and articles thereof | $98,099 | | $1,795 | | $2,017 | $81,682 | $134,703 |
| Aluminum and articles thereof | $13,099,179 | $19,621,030 | $27,308,700 | $26,791,847 | $14,410,603 | $25,662,849 | $29,302,898 |
| Lead and articles thereof | $908,218 | $1,785,920 | $4,279,011 | $5,458,164 | $3,747,286 | $5,881,770 | $7,575,353 |
| Zinc and articles thereof | $103,085 | $177,858 | $232,713 | $299,324 | $382,209 | $121,074 | $39,543 |
| Tin and articles thereof | $10,760 | | | | | | |
| Other base metals; cermets; articles thereof | | | | | | $28,089 | $4,955 |
| Tools, implements, cutlery, spoons and forks, of base metal | $233,391 | $257,846 | $292,413 | $580,987 | $405,534 | $347,425 | $383,220 |
| Miscellaneous articles of base metal | $24,234,417 | $34,286,564 | $50,615,786 | $57,327,822 | $46,277,112 | $51,367,965 | $52,458,401 |
| Total | $99,645,186 | $127,301,179 | $162,756,691 | $253,404,084 | $125,471,077 | $299,509,134 | $394,407,483 |
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