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| Chapter | 2005 | 2006 | 2007 | 2008 | 2010 |
| Iron and steel | $107,849,177 | $339,045,515 | $564,365,635 | $758,710,587 | $477,587,322 |
| Articles of iron or steel | $1,233,017,919 | $2,331,401,459 | $3,415,678,292 | $3,802,247,623 | $1,637,721,451 |
| Copper and articles thereof | $34,562,514 | $37,980,763 | $92,826,645 | $71,364,218 | $103,416,328 |
| Nickel and articles thereof | $421,142 | $18,557,705 | $18,320,361 | $47,785,810 | $4,543,161 |
| Aluminum and articles thereof | $71,190,066 | $132,934,027 | $154,610,303 | $223,292,560 | $398,007,819 |
| Lead and articles thereof | $678,044 | $560,773 | $2,387,092 | $502,326 | $879,870 |
| Zinc and articles thereof | $1,635,986 | $4,371,394 | $10,415,382 | $12,726,534 | $10,874,707 |
| Tin and articles thereof | $3,163,075 | $3,797,231 | $7,238,282 | $9,809,322 | $12,019,112 |
| Other base metals; cermets; articles thereof | $4,085,094 | $469,369 | $1,223,017 | $4,424,529 | $9,710,191 |
| Tools, implements, cutlery, spoons and forks, of base metal | $28,085,775 | $47,293,438 | $66,133,065 | $77,169,530 | $83,504,716 |
| Miscellaneous articles of base metal | $44,409,011 | $55,089,470 | $94,086,181 | $116,358,283 | $85,434,536 |
| Total | $1,529,097,803 | $2,971,501,144 | $4,427,284,255 | $5,124,391,322 | $2,823,699,213 |
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