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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $120,282,633 | $155,971,784 | $238,616,378 | $286,150,661 | $197,181,349 | $224,247,262 | $285,307,708 |
| Articles of iron or steel | $187,465,716 | $184,419,937 | $204,229,683 | $224,880,687 | $169,062,635 | $201,513,217 | $227,096,259 |
| Copper and articles thereof | $51,168,594 | $81,631,705 | $99,873,763 | $99,339,292 | $70,065,208 | $91,747,329 | $121,935,198 |
| Nickel and articles thereof | $42,548 | $80,952 | $43,986 | $340,226 | $76,942 | $158,765 | $415,317 |
| Aluminum and articles thereof | $749,631,369 | $938,593,460 | $1,084,247,953 | $992,574,556 | $531,500,394 | $830,005,502 | $957,455,050 |
| Lead and articles thereof | $8,089,134 | $12,723,319 | $29,991,081 | $21,113,154 | $19,786,437 | $20,131,594 | $24,655,254 |
| Zinc and articles thereof | $2,626,643 | $4,292,041 | $2,405,176 | $1,142,646 | $1,007,146 | $1,153,572 | $873,120 |
| Tin and articles thereof | $4,234,710 | $5,787,407 | $7,352,175 | $6,832,953 | $7,269,848 | $6,489,124 | $8,652,379 |
| Other base metals; cermets; articles thereof | $1,840,471 | $1,086,990 | $2,072,852 | $1,627,373 | $617,129 | $1,435,288 | $489,118 |
| Tools, implements, cutlery, spoons and forks, of base metal | $50,846,786 | $50,593,124 | $47,862,482 | $41,371,374 | $23,217,322 | $30,407,186 | $35,083,800 |
| Miscellaneous articles of base metal | $53,096,374 | $37,364,622 | $39,832,070 | $44,717,143 | $36,986,762 | $39,786,365 | $40,485,789 |
| Total | $1,229,324,978 | $1,472,545,341 | $1,756,527,599 | $1,720,090,065 | $1,056,771,172 | $1,447,075,204 | $1,702,448,992 |
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