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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Iron and steel | $30,096,735 | $39,828,199 | $58,558,554 | $71,138,918 | $45,673,623 | $59,969,832 |
| Articles of iron or steel | $19,720,390 | $17,196,972 | $19,276,048 | $31,544,793 | $22,786,046 | $25,521,816 |
| Copper and articles thereof | $2,047,297 | $5,853,633 | $8,387,051 | $1,000,416 | $133,376 | $121,163 |
| Nickel and articles thereof | $302 | | | $281 | | |
| Aluminum and articles thereof | $42,977,562 | $54,370,687 | $58,286,959 | $52,575,539 | $36,913,375 | $46,499,357 |
| Lead and articles thereof | $217,993 | $1,496 | $3,251 | $9,649 | $2,868 | $11,796 |
| Zinc and articles thereof | $59,050 | $113,080 | $304,903 | $511,558 | $180,928 | $395,620 |
| Tin and articles thereof | $340 | $20,992 | $30,285 | $24,023 | $250,433 | $133,705 |
| Other base metals; cermets; articles thereof | $3,603 | $21,455 | | | $15,411 | $499,419 |
| Tools, implements, cutlery, spoons and forks, of base metal | $12,172,188 | $13,938,042 | $12,654,121 | $12,038,387 | $10,970,892 | $13,351,067 |
| Miscellaneous articles of base metal | $4,127,706 | $5,247,494 | $4,304,616 | $3,406,834 | $3,225,315 | $3,486,148 |
| Total | $111,423,166 | $136,592,050 | $161,805,788 | $172,250,398 | $120,152,267 | $149,989,923 |
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