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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $510,267,065 | $619,329,202 | $802,333,369 | $908,013,725 | $281,347,598 | $433,458,128 | $626,094,366 |
| Articles of iron or steel | $146,240,010 | $180,207,883 | $207,729,663 | $370,479,299 | $217,932,739 | $271,030,856 | $397,599,649 |
| Copper and articles thereof | $12,194,527,900 | $21,482,871,028 | $24,938,242,278 | $23,447,815,886 | $19,045,369,005 | $27,854,572,904 | $30,475,755,742 |
| Nickel and articles thereof | $16,308 | $92,753 | $347,545 | $82,229 | $56,582 | $59,957 | $103,354 |
| Aluminum and articles thereof | $43,495,378 | $57,203,568 | $68,811,590 | $87,729,134 | $69,535,972 | $76,708,721 | $112,206,728 |
| Lead and articles thereof | $3,668,056 | $5,270,831 | $9,060,130 | $6,621,631 | $40,870,635 | $17,347,826 | $34,799,069 |
| Zinc and articles thereof | $305,331 | $1,437,072 | $2,363,484 | $783,709 | $217,599 | $75,544 | $222,611 |
| Tin and articles thereof | $75,549 | $116,762 | $256,910 | $343,569 | $192,648 | $245,188 | $315,228 |
| Other base metals; cermets; articles thereof | $23,957,890 | $32,071,366 | $36,251,579 | $52,637,543 | $53,918,402 | $55,698,238 | $59,291,452 |
| Tools, implements, cutlery, spoons and forks, of base metal | $2,785,811 | $3,748,896 | $4,090,567 | $22,823,469 | $24,364,777 | $26,051,549 | $25,354,769 |
| Miscellaneous articles of base metal | $23,842,334 | $29,558,138 | $34,354,749 | $49,478,735 | $41,971,563 | $45,808,240 | $55,924,826 |
| Total | $12,949,181,632 | $22,411,907,499 | $26,103,841,864 | $24,946,808,929 | $19,775,777,520 | $28,781,057,151 | $31,787,667,794 |
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