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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Iron and steel | $43,386,785 | $62,925,062 | $77,788,453 | $78,522,322 | $74,114,057 | $93,557,994 |
| Articles of iron or steel | $74,631,758 | $98,249,864 | $213,328,178 | $183,152,474 | $114,404,184 | $160,803,106 |
| Copper and articles thereof | $3,403,633 | $8,036,159 | $10,872,827 | $112,324,308 | $127,266,946 | $243,836,401 |
| Nickel and articles thereof | $61,037 | $55,738 | $122,206 | $61,807 | $8,309 | $62,286 |
| Aluminum and articles thereof | $8,779,591 | $7,905,960 | $14,582,396 | $12,240,822 | $9,072,502 | $16,282,697 |
| Lead and articles thereof | $5,120,149 | $5,928,090 | $2,557,455 | $6,182,555 | $1,031,940 | $1,524,911 |
| Zinc and articles thereof | $58,151 | $286,041 | $223,629 | $162,368 | $28,569 | $305,131 |
| Tin and articles thereof | $129,219 | $115,091 | $167,108 | $269,694 | $316,342 | $441,217 |
| Other base metals; cermets; articles thereof | $245,624 | $744,081 | $285,175 | $843,233 | $1,711,417 | $875,666 |
| Tools, implements, cutlery, spoons and forks, of base metal | $6,794,406 | $9,218,226 | $13,346,940 | $12,246,194 | $8,510,039 | $12,775,333 |
| Miscellaneous articles of base metal | $5,235,649 | $5,901,610 | $7,618,797 | $9,210,327 | $7,092,178 | $10,846,524 |
| Total | $147,846,002 | $199,365,922 | $340,893,164 | $415,216,104 | $343,556,483 | $541,311,266 |
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