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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $80,813,032 | $59,026,212 | $128,660,424 | $135,769,497 | $81,385,547 | $129,105,751 | $201,910,100 |
| Articles of iron or steel | $195,900,637 | $148,421,551 | $215,757,756 | $292,376,653 | $310,803,348 | $421,334,187 | $415,198,847 |
| Copper and articles thereof | $8,920,808 | $21,174,460 | $16,118,171 | $12,069,465 | $15,686,946 | $8,173,941 | $18,381,091 |
| Nickel and articles thereof | $31,183 | $119,454 | $43,835 | $56,120 | $34,315 | $113,618 | $87,149 |
| Aluminum and articles thereof | $61,456,744 | $38,297,957 | $91,795,559 | $72,189,358 | $50,776,732 | $76,941,413 | $100,372,901 |
| Lead and articles thereof | $93,229 | $265,309 | $80,408 | $55,202 | $86,153 | $382,680 | $144,686 |
| Zinc and articles thereof | $557,660 | $395,870 | $630,153 | $228,486 | $177,292 | $102,920 | $198,607 |
| Tin and articles thereof | $3,669,733 | $15,285,213 | $11,619,646 | $9,587,889 | $9,675,422 | $9,307,011 | $7,448,455 |
| Other base metals; cermets; articles thereof | $112,951 | $14,704 | $139,770 | $257,112 | $145,298 | $654,711 | $284,392 |
| Tools, implements, cutlery, spoons and forks, of base metal | $14,916,612 | $15,331,191 | $19,824,038 | $49,115,015 | $28,001,351 | $33,147,073 | $51,916,950 |
| Miscellaneous articles of base metal | $16,256,119 | $26,695,069 | $27,578,325 | $29,662,634 | $27,425,919 | $108,361,518 | $48,853,079 |
| Total | $382,728,708 | $325,026,990 | $512,248,085 | $601,367,431 | $524,198,323 | $787,624,823 | $844,796,257 |
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