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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Iron and steel | $166,258,937 | $162,679,633 | $256,638,690 | $397,303,050 | $194,640,547 | $414,409,178 |
| Articles of iron or steel | $2,897,658 | $3,903,885 | $7,338,545 | $9,008,948 | $4,688,642 | $5,360,318 |
| Copper and articles thereof | $11,624,351 | $30,178,522 | $37,217,812 | $29,729,448 | $19,024,353 | $41,764,003 |
| Nickel and articles thereof | | $53,237 | $161,945 | | | |
| Aluminum and articles thereof | $11,782,247 | $15,880,942 | $19,921,804 | $14,777,819 | $6,748,323 | $15,077,082 |
| Lead and articles thereof | $538,204 | $1,129,235 | $4,578,733 | $4,172,419 | $2,705,930 | $5,654,004 |
| Zinc and articles thereof | $84,164 | $259,288 | $438,510 | $326,641 | $309,772 | $524,441 |
| Tin and articles thereof | $11 | | $4,242 | | $318 | $193 |
| Other base metals; cermets; articles thereof | $19 | $14,322 | $70 | $4,324 | $134,156 | $500 |
| Tools, implements, cutlery, spoons and forks, of base metal | $94,638 | $730,130 | $1,767,013 | $534,558 | $189,960 | $192,775 |
| Miscellaneous articles of base metal | $245,741 | $173,556 | $262,970 | $510,542 | $633,112 | $122,865 |
| Total | $193,525,970 | $215,002,750 | $328,330,334 | $456,367,749 | $229,075,113 | $483,105,359 |
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