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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $1,176,017,367 | $1,646,296,692 | $2,104,446,822 | $2,719,861,475 | $1,198,582,559 | $1,488,893,238 | $1,809,023,960 |
| Articles of iron or steel | $750,848,794 | $853,337,807 | $1,072,946,589 | $1,431,395,756 | $881,537,814 | $907,719,336 | $1,010,775,308 |
| Copper and articles thereof | $125,717,700 | $177,423,399 | $207,734,218 | $198,082,476 | $131,837,253 | $151,893,532 | $166,933,658 |
| Nickel and articles thereof | $91,734 | $292,293 | $315,235 | $219,945 | $238,492 | $319,358 | $552,401 |
| Aluminum and articles thereof | $492,106,260 | $667,295,569 | $758,669,945 | $696,206,050 | $438,917,257 | $560,392,260 | $626,334,345 |
| Lead and articles thereof | $323,207 | $539,629 | $1,203,249 | $1,014,575 | $857,356 | $1,395,167 | $2,002,353 |
| Zinc and articles thereof | $1,359,962 | $3,699,197 | $2,561,790 | $1,623,817 | $1,911,251 | $1,953,323 | $2,021,662 |
| Tin and articles thereof | $12,362 | $16,875 | $30,973 | $48,598 | $11,713 | $18,187 | $39,585 |
| Other base metals; cermets; articles thereof | $20,178,068 | $15,063,724 | $10,905,182 | $10,885,054 | $4,454,796 | $4,101,471 | $5,218,437 |
| Tools, implements, cutlery, spoons and forks, of base metal | $33,805,280 | $34,760,084 | $36,865,006 | $39,074,458 | $29,537,389 | $38,030,306 | $39,353,979 |
| Miscellaneous articles of base metal | $6,070,923 | $5,317,893 | $5,475,828 | $5,305,017 | $6,692,921 | $7,404,138 | $6,759,519 |
| Total | $2,606,531,657 | $3,404,043,162 | $4,201,154,837 | $5,103,717,221 | $2,694,578,801 | $3,162,120,316 | $3,669,015,207 |
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