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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Iron and steel | $12,173,563 | $12,674,738 | $27,404,952 | $37,165,834 | $14,791,875 | $17,678,247 |
| Articles of iron or steel | $1,830,691 | $967,273 | $6,461,217 | $5,652,395 | $6,575,736 | $7,186,794 |
| Copper and articles thereof | $40,466 | $132,911 | $100,843 | $617,681 | $505,865 | $136,568 |
| Nickel and articles thereof | $755 | | $2,060 | | | |
| Aluminum and articles thereof | $129,713,282 | $167,245,146 | $194,703,442 | $197,764,783 | $91,590,480 | $119,246,203 |
| Lead and articles thereof | $316,036 | $1,013,297 | $1,569,493 | $2,393,466 | $2,368,132 | $1,718,969 |
| Zinc and articles thereof | | $1,144,782 | $240,910 | $8,133 | | $487 |
| Tin and articles thereof | | | | | $112 | |
| Other base metals; cermets; articles thereof | | | $204,072 | $749,220 | $198,570 | $355,890 |
| Tools, implements, cutlery, spoons and forks, of base metal | $302,108 | $476,789 | $348,612 | $525,049 | $593,925 | $440,067 |
| Miscellaneous articles of base metal | $124,381 | $145,869 | $135,829 | $161,622 | $295,675 | $108,502 |
| Total | $144,501,282 | $183,800,805 | $231,171,430 | $245,038,183 | $116,920,370 | $146,871,727 |
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