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| Chapter | 2005 | 2006 | 2007 |
| Iron and steel | $626,800 | $2,963,755 | $1,079,618 |
| Articles of iron or steel | $14,765,038 | $14,690,034 | $13,049,950 |
| Copper and articles thereof | $595,093 | $1,300,813 | $845,392 |
| Nickel and articles thereof | $8,343 | $12,179 | $5,419 |
| Aluminum and articles thereof | $4,036,725 | $9,717,707 | $4,092,909 |
| Lead and articles thereof | $31,194 | $38,948 | $19,188 |
| Zinc and articles thereof | $47,981 | $55,249 | $27,844 |
| Tin and articles thereof | $790 | $2,154 | $142,280 |
| Other base metals; cermets; articles thereof | $2,597 | $34,249 | $11,037 |
| Tools, implements, cutlery, spoons and forks, of base metal | $3,922,629 | $5,101,106 | $4,406,851 |
| Miscellaneous articles of base metal | $1,721,890 | $2,183,040 | $1,707,035 |
| Total | $25,759,080 | $36,099,234 | $25,387,523 |
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