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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $3,611,851 | $3,854,916 | $4,205,438 | $4,754,014 | $2,986,776 | $1,291,713 | $449,601 |
| Articulated link chain other than roller chain, of iron/steel | $95,072 | $110,753 | $140,875 | $124,448 | $87,445 | $58,376 | $72,373 |
| Parts of articulated link chain of iron/steel | $26 | $3,789 | $13,701 | $11,026 | $3,045 | $10,366 | $9,131 |
| Skid chain of iron/steel | $28,825 | $12,471 | $11,445 | $12,731 | $9,808 | $18,534 | $115,305 |
| Stud-link chain of iron/steel | | | $3,929 | | $1,334 | $6,390 | |
| Welded link chain of iron/steel | $3,079 | $3,470 | $20,011 | $47,146 | $29,374 | $28,385 | $34,226 |
| Chain, of iron/steel, n.e.s. in 73.15 | $4,439 | $4,720 | $42,376 | $23,898 | $13,779 | $16,343 | $18,809 |
| Parts of chains (excl. articulated link chain), of iron/steel | $2,044 | $3,861 | $20,463 | $98,096 | $20,909 | $22,450 | $38,491 |
| Total | $3,745,336 | $3,993,980 | $4,458,238 | $5,071,359 | $3,152,470 | $1,452,557 | $737,936 |
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