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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $1,948 | $14,466 | $20,320 | $20,872 | $5,383 | $29,933 | $70,524 |
| Articulated link chain other than roller chain, of iron/steel | $190,699 | $46,546 | $15,341 | $68,941 | $1,792 | $7,974 | $24,246 |
| Parts of articulated link chain of iron/steel | $394,752 | $100,626 | $394,906 | $397,767 | $139,755 | $207,214 | $104,059 |
| Skid chain of iron/steel | $9,055,511 | $7,750,876 | $6,933,136 | $6,115,726 | $7,837,540 | $11,246,261 | $16,508,138 |
| Stud-link chain of iron/steel | $2,194 | $78,311 | $60,242 | $44,272 | $33,427 | $16,990 | $67,401 |
| Welded link chain of iron/steel | $173,326 | $86,494 | $7,922 | $61,675 | $24,073 | $179,461 | $9,357 |
| Chain, of iron/steel, n.e.s. in 73.15 | $419,675 | $253,716 | $31,609 | $37,928 | $95,992 | $55,823 | $33,030 |
| Parts of chains (excl. articulated link chain), of iron/steel | $982,385 | $726,181 | $786,167 | $667,427 | $640,224 | $812,895 | $2,063,656 |
| Total | $11,220,490 | $9,057,216 | $8,249,643 | $7,414,608 | $8,778,186 | $12,556,551 | $18,880,411 |
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