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| Chapter | 2005 | 2006 | 2007 |
| Iron and steel | $27,108,639 | $19,068,736 | $18,536,025 |
| Articles of iron or steel | $53,167,418 | $38,471,729 | $38,374,302 |
| Copper and articles thereof | $3,759,135 | $4,998,684 | $5,348,378 |
| Nickel and articles thereof | $214,117 | $3,133,550 | $241,017 |
| Aluminum and articles thereof | $4,223,713 | $2,582,159 | $2,926,198 |
| Lead and articles thereof | $59,498 | $35,539 | $85,923 |
| Zinc and articles thereof | $162,952 | $46,502 | $88,506 |
| Tin and articles thereof | $197,546 | $224,329 | $156,888 |
| Other base metals; cermets; articles thereof | $189,567 | $93,664 | $43,711 |
| Tools, implements, cutlery, spoons and forks, of base metal | $7,331,638 | $5,509,290 | $5,924,111 |
| Miscellaneous articles of base metal | $8,019,694 | $4,993,050 | $4,441,823 |
| Total | $104,433,917 | $79,157,232 | $76,166,882 |
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