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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $2,304,081 | $361,178 | $744,270 | $3,859,834 | $247,810 | $554,557 | $28,940 |
| Articles of iron or steel | $57,759 | $50,987 | $603,693 | $1,031,317 | $959,652 | $2,222,478 | $495,995 |
| Copper and articles thereof | $566,383 | $395,755 | $1,915,695 | $1,054,726 | $199,769 | $1,688,624 | $674,129 |
| Nickel and articles thereof | | | | | | | $1,814 |
| Aluminum and articles thereof | $284,383 | $934,581 | $396,281 | $326,737 | $236,996 | $1,270,717 | $48,633 |
| Lead and articles thereof | $106,244 | $347,739 | $1,016,229 | $1,108,250 | $991,116 | $3,754,105 | $1,598,203 |
| Zinc and articles thereof | | | $483,101 | $39,459 | $323,614 | $259,614 | $474,156 |
| Tin and articles thereof | | | $87 | $101 | | | $1,441 |
| Other base metals; cermets; articles thereof | | | $102 | $4,854 | | | $265,911 |
| Tools, implements, cutlery, spoons and forks, of base metal | | $6,783 | $363,920 | $733,438 | $630,248 | $528,897 | $509,171 |
| Miscellaneous articles of base metal | | $24 | $7,806 | $17,623 | $220,008 | $132,197 | $378,217 |
| Total | $3,318,850 | $2,097,047 | $5,531,184 | $8,176,339 | $3,809,213 | $10,411,189 | $4,476,610 |
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