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| Commodity | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $8,694 | $9,464 | $2,003 |
| Articulated link chain other than roller chain, of iron/steel | $129,602 | $43,306 | $49,846 |
| Parts of articulated link chain of iron/steel | $570 | $728 | $4,121 |
| Skid chain of iron/steel | $5,458 | $1,811 | |
| Stud-link chain of iron/steel | $1,066 | | |
| Welded link chain of iron/steel | $14,304 | $7,684 | $13,626 |
| Chain, of iron/steel, n.e.s. in 73.15 | $107,584 | $79,069 | $87,145 |
| Parts of chains (excl. articulated link chain), of iron/steel | $6,349 | $5,580 | $14,645 |
| Total | $273,627 | $147,642 | $171,386 |
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