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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $774,480 | $1,452,105 | $2,925,743 | $3,780,232 | $1,552,926 | $933,305 | $1,498,380 |
| Articles of iron or steel | $9,879,789 | $10,771,660 | $12,670,150 | $9,640,811 | $7,935,793 | $9,692,067 | $8,499,826 |
| Copper and articles thereof | $62,250 | $188,796 | $1,800,987 | $679,186 | $43,192 | $4,991 | $284,658 |
| Aluminum and articles thereof | $2,419,308 | $3,334,530 | $4,332,754 | $3,216,893 | $3,471,707 | $3,561,539 | $3,880,138 |
| Lead and articles thereof | | | $2,000 | $10 | | | $155 |
| Zinc and articles thereof | | | | | $20 | | |
| Tin and articles thereof | $6,029 | $34,457 | $284 | $1,626 | $34,821 | $5,149 | $166,097 |
| Other base metals; cermets; articles thereof | $695 | | $2,101 | | | $440,000 | $98,000 |
| Tools, implements, cutlery, spoons and forks, of base metal | $353,958 | $854,172 | $125,821 | $306,835 | $354,062 | $274,458 | $263,776 |
| Miscellaneous articles of base metal | $252,412 | $280,036 | $129,550 | $257,657 | $298,125 | $358,393 | $317,816 |
| Total | $13,748,921 | $16,915,756 | $21,989,390 | $17,883,250 | $13,690,646 | $15,269,902 | $15,008,846 |
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