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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | | $548,924 | $3,933,700 | $16,806,005 | $5,274,218 | $13,142,411 | $16,275,342 |
| Articles of iron or steel | $13,302 | $8,099,027 | $10,828,197 | $18,341,027 | $7,624,538 | $13,955,259 | $18,974,789 |
| Copper and articles thereof | | $390,085 | $205,124 | $336,199 | $83,361 | $881,657 | $555,998 |
| Nickel and articles thereof | | $33,299 | | $1,510 | $102,265 | | $2,000 |
| Aluminum and articles thereof | | $525,518 | $1,106,753 | $3,453,260 | $1,843,548 | $940,309 | $1,094,831 |
| Lead and articles thereof | | | | | $4,455 | | $1,560 |
| Zinc and articles thereof | | | | | $3,000 | | |
| Tin and articles thereof | | | | $51,478 | | | |
| Other base metals; cermets; articles thereof | | $5,500 | $340,589 | $595,115 | $45,100 | $543,500 | $395,507 |
| Tools, implements, cutlery, spoons and forks, of base metal | $285 | $2,441,232 | $4,144,435 | $3,492,640 | $10,728,960 | $8,006,131 | $9,147,620 |
| Miscellaneous articles of base metal | | $384,942 | $1,760,331 | $445,801 | $191,098 | $46,724 | $771,943 |
| Total | $13,587 | $12,428,527 | $22,319,129 | $43,523,035 | $25,900,543 | $37,515,991 | $47,219,590 |
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