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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Roller chain of iron/steel | $9,231 | | | $1,073 | $112,506 | $115,038 |
| Articulated link chain other than roller chain, of iron/steel | $151,488 | $10,024 | $61,835 | $3,800 | $4,726 | $61,960 |
| Parts of articulated link chain of iron/steel | | $659 | | $5 | $4 | |
| Skid chain of iron/steel | | $500 | | | $4,930 | |
| Stud-link chain of iron/steel | | | $16,191 | | | |
| Welded link chain of iron/steel | | | | $13,213 | | $7,494 |
| Chain, of iron/steel, n.e.s. in 73.15 | $76,360 | $241,283 | $43,857 | $114,877 | $7,652 | $46,987 |
| Parts of chains (excl. articulated link chain), of iron/steel | $33 | $721 | $1,735 | $39,448 | $8,827 | $41 |
| Total | $237,112 | $253,187 | $123,618 | $172,416 | $138,645 | $231,520 |
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