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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Iron and steel | $28,279,368 | $33,454,564 | $43,083,701 | $47,743,538 | $25,903,148 | $34,068,203 |
| Articles of iron or steel | $54,067,450 | $59,411,870 | $64,466,761 | $67,743,830 | $48,254,124 | $61,821,148 |
| Copper and articles thereof | $6,936,292 | $8,887,122 | $9,416,932 | $10,755,384 | $6,217,196 | $8,389,249 |
| Nickel and articles thereof | $360,595 | $398,582 | $1,126,535 | $795,013 | $239,028 | $326,110 |
| Aluminum and articles thereof | $17,254,315 | $21,170,612 | $26,516,334 | $30,565,176 | $23,561,162 | $21,242,472 |
| Lead and articles thereof | $29,405 | $72,453 | $316,552 | $34,003 | $266,391 | $98,734 |
| Zinc and articles thereof | $290,986 | $422,009 | $1,093,472 | $624,576 | $487,664 | $252,889 |
| Tin and articles thereof | $226,203 | $326,210 | $371,317 | $369,678 | $177,758 | $235,921 |
| Other base metals; cermets; articles thereof | $67,420 | $64,642 | $56,301 | $162,830 | $126,268 | $130,286 |
| Tools, implements, cutlery, spoons and forks, of base metal | $10,533,449 | $9,651,757 | $10,627,139 | $11,366,552 | $9,315,351 | $11,053,842 |
| Miscellaneous articles of base metal | $15,436,535 | $16,918,337 | $17,725,281 | $19,358,572 | $14,994,766 | $18,295,986 |
| Total | $133,482,018 | $150,778,158 | $174,800,325 | $189,519,152 | $129,542,856 | $155,914,840 |
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