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| Chapter | 2005 | 2007 | 2008 |
| Iron and steel | $2,089,846,285 | $4,151,407,836 | $10,332,399,700 |
| Articles of iron or steel | $1,592,835,158 | $3,491,428,987 | $5,332,617,607 |
| Copper and articles thereof | $388,646,204 | $854,249,055 | $1,293,369,527 |
| Nickel and articles thereof | $13,900,131 | $32,079,137 | $60,181,109 |
| Aluminum and articles thereof | $656,674,892 | $1,001,277,836 | $1,546,933,545 |
| Lead and articles thereof | $7,059,867 | $25,997,785 | $11,179,294 |
| Zinc and articles thereof | $36,810,482 | $153,596,486 | $79,711,290 |
| Tin and articles thereof | $3,843,401 | $12,852,186 | $56,324,151 |
| Other base metals; cermets; articles thereof | $23,280,452 | $33,654,390 | $77,472,153 |
| Tools, implements, cutlery, spoons and forks, of base metal | $269,485,907 | $420,812,286 | $454,577,973 |
| Miscellaneous articles of base metal | $304,669,840 | $508,811,918 | $605,687,435 |
| Total | $5,387,052,619 | $10,686,167,902 | $19,850,453,784 |
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