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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Iron and steel | $1,556,157,961 | $1,683,789,799 | $2,941,861,551 | $3,920,584,572 | $3,091,852,301 | $3,637,085,520 |
| Articles of iron or steel | $584,574,668 | $889,743,030 | $1,250,400,568 | $1,463,273,261 | $1,416,712,442 | $1,844,995,030 |
| Copper and articles thereof | $361,832,106 | $803,388,441 | $990,354,326 | $916,100,560 | $817,885,037 | $1,408,929,620 |
| Nickel and articles thereof | $10,314,872 | $15,000,910 | $28,204,826 | $18,261,956 | $13,873,810 | $15,063,160 |
| Aluminum and articles thereof | $373,113,640 | $538,009,992 | $687,226,362 | $761,042,191 | $695,658,004 | $997,136,360 |
| Lead and articles thereof | $45,722,318 | $58,670,568 | $150,215,806 | $166,490,420 | $176,536,530 | $210,263,130 |
| Zinc and articles thereof | $66,084,835 | $143,511,872 | $203,846,269 | $116,306,271 | $105,158,497 | $178,752,420 |
| Tin and articles thereof | $5,227,354 | $4,242,890 | $7,920,694 | $16,981,855 | $16,833,521 | $20,488,360 |
| Other base metals; cermets; articles thereof | $6,654,403 | $8,013,660 | $8,543,625 | $14,115,167 | $11,727,893 | $25,388,100 |
| Tools, implements, cutlery, spoons and forks, of base metal | $71,126,499 | $91,852,484 | $116,391,312 | $130,287,983 | $117,458,480 | $164,009,040 |
| Miscellaneous articles of base metal | $121,536,100 | $162,636,130 | $232,934,907 | $292,244,532 | $281,648,563 | $358,277,360 |
| Total | $3,202,344,756 | $4,398,859,776 | $6,617,900,246 | $7,815,688,768 | $6,745,345,078 | $8,860,388,100 |
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