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| Chapter | 2005 | 2006 | 2007 | 2008 | 2010 |
| Iron and steel | $539,627,541 | $544,618,103 | $877,014,656 | $1,685,935,328 | $859,222,758 |
| Articles of iron or steel | $143,042,395 | $159,269,728 | $163,396,002 | $176,321,275 | $403,186,146 |
| Copper and articles thereof | $64,203,739 | $157,621,857 | $228,666,816 | $431,131,075 | $236,109,173 |
| Nickel and articles thereof | $1,347,202 | $494,242 | $1,102,138 | $194,081 | $756,440 |
| Aluminum and articles thereof | $100,857,526 | $161,516,709 | $237,554,726 | $268,783,264 | $205,144,943 |
| Lead and articles thereof | $251,961 | $707,238 | $632,169 | $2,144,235 | $1,855,494 |
| Zinc and articles thereof | $3,413,011 | $2,139,234 | $5,819,134 | $6,570,800 | $3,492,397 |
| Tin and articles thereof | $884,210 | $395,831 | $362,555 | $400,007 | $5,026,734 |
| Other base metals; cermets; articles thereof | | $12,986 | | | $90,625 |
| Tools, implements, cutlery, spoons and forks, of base metal | $14,294,975 | $16,530,475 | $12,930,119 | $17,029,095 | $22,168,095 |
| Miscellaneous articles of base metal | $26,025,580 | $26,875,617 | $30,730,637 | $49,150,803 | $57,171,159 |
| Total | $893,948,140 | $1,070,182,020 | $1,558,208,952 | $2,637,659,963 | $1,794,223,964 |
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