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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2011 |
| Iron and steel | $11,306,009 | $19,041,917 | $25,245,064 | $51,082,576 | $35,021,235 | $35,204,209 |
| Articles of iron or steel | $10,724,620 | $12,132,977 | $19,709,506 | $41,468,250 | $43,877,176 | $47,737,232 |
| Copper and articles thereof | $553,453 | $274,130 | $1,014,111 | $624,748 | $1,374,267 | $810,128 |
| Nickel and articles thereof | | $1,472 | $15,156 | $16,373 | $632,439 | $1,226 |
| Aluminum and articles thereof | $2,823,611 | $4,350,134 | $3,307,509 | $6,933,343 | $6,942,320 | $10,234,406 |
| Lead and articles thereof | $909,810 | $59,049 | $13,379 | $99,686 | $29,005 | $40,626 |
| Zinc and articles thereof | $36,400 | $64,269 | $2,451 | $108,265 | $141,394 | $6,497 |
| Tin and articles thereof | $3,889 | $11,525 | $6,234 | $46,792 | $653 | $82,007 |
| Other base metals; cermets; articles thereof | $377 | $9,842 | $3,853 | $16,117 | $2,110 | $192 |
| Tools, implements, cutlery, spoons and forks, of base metal | $2,186,613 | $2,915,006 | $3,632,943 | $6,246,831 | $5,140,425 | $8,736,851 |
| Miscellaneous articles of base metal | $2,573,179 | $3,009,370 | $3,702,761 | $4,897,750 | $4,792,418 | $6,812,862 |
| Total | $31,117,961 | $41,869,691 | $56,652,967 | $111,540,731 | $97,953,442 | $109,666,236 |
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