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| Chapter | 2005 | 2006 | 2007 | 2009 | 2010 | 2011 |
| Iron and steel | $9,131 | $243,061 | $217,339 | $226,762 | $404,594 | $543,454 |
| Articles of iron or steel | $909,681 | $784,695 | $511,801 | | | $89 |
| Copper and articles thereof | $10,318 | $11,094 | $18,823 | $3,291 | $6,548 | $45,987 |
| Aluminum and articles thereof | $12,498 | $53,125 | $9,510 | $3,949 | $1,310 | $23,295 |
| Lead and articles thereof | $23,300 | $6,527 | $19,288 | | | |
| Zinc and articles thereof | $13,807 | | $669 | | | |
| Tin and articles thereof | | | $225 | | | |
| Tools, implements, cutlery, spoons and forks, of base metal | $92,433 | $267,573 | $192,502 | | | |
| Miscellaneous articles of base metal | $24,299 | $33,588 | $35,489 | | | |
| Total | $1,095,467 | $1,399,663 | $1,005,646 | $234,002 | $412,452 | $612,825 |
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