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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Iron and steel | $29,863,477 | $30,672,903 | $62,146,614 | $6,561,982 | $123,252,735 | $163,627,856 |
| Articles of iron or steel | $9,619 | $33,796 | $19,181 | $917 | $9,825 | $2,814 |
| Copper and articles thereof | $26,650,770 | $57,624,431 | $91,275,213 | | $20,145,637 | $38,526,248 |
| Aluminum and articles thereof | $72,402 | $54,754 | $51,901 | | $55,870 | $132,979 |
| Lead and articles thereof | $977 | | | | | $388 |
| Zinc and articles thereof | | | $94 | | | |
| Tin and articles thereof | $33,620 | $46,463 | $92,135 | | $97,539 | $112,886 |
| Other base metals; cermets; articles thereof | $83 | $2 | | | $2,288,764 | $16,737,904 |
| Tools, implements, cutlery, spoons and forks, of base metal | $2,596 | $30,425 | $336 | $81 | $103 | |
| Miscellaneous articles of base metal | $23 | $152 | $1,446 | $220 | $782 | $10,280 |
| Total | $56,633,567 | $88,462,926 | $153,586,920 | $6,563,200 | $145,851,255 | $219,151,355 |
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