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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 |
| Iron and steel | $1,730,157,753 | $1,806,055,805 | $2,720,254,655 | $4,944,295,562 | $2,156,323,588 |
| Articles of iron or steel | $76,997,957 | $70,177,967 | $141,722,395 | $256,929,968 | $71,740,656 |
| Copper and articles thereof | $1,507,462,305 | $2,631,948,792 | $2,805,081,368 | $2,901,469,952 | $1,550,811,618 |
| Nickel and articles thereof | $29,504 | $10 | $77,436 | $16,684 | $535,840 |
| Aluminum and articles thereof | $25,495,307 | $33,673,079 | $40,683,324 | $301,996,009 | $194,155,584 |
| Lead and articles thereof | $89,350,357 | $108,588,368 | $245,254,818 | $203,752,471 | $118,799,231 |
| Zinc and articles thereof | $312,895,075 | $804,393,725 | $1,010,189,147 | $640,349,898 | $400,537,143 |
| Tin and articles thereof | | | $4,293 | $122 | $455 |
| Other base metals; cermets; articles thereof | $25,447,103 | $23,442,406 | $25,317,891 | $28,281,615 | $16,331,044 |
| Tools, implements, cutlery, spoons and forks, of base metal | $855,742 | $676,953 | $935,972 | $1,292,219 | $1,596,559 |
| Miscellaneous articles of base metal | $425,107 | $813,838 | $905,353 | $1,605,215 | $2,147,258 |
| Total | $3,769,116,210 | $5,479,770,943 | $6,990,426,652 | $9,279,989,715 | $4,512,978,976 |
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