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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $8,061 | $7,741 | $10,563 | $5,706 | $9,589 | $17,134 | $13,792 |
| Kieserite, epsomite (nat. magnesium sulphates) | $961 | $2,601 | $2,219 | | | | |
| Mineral subs., n.e.s. in Ch.25 | $11,979 | $4,732 | $17,666 | $1,389 | $24,047 | $13,975 | $1,171 |
| Total | $21,001 | $15,074 | $30,448 | $7,095 | $33,636 | $31,109 | $14,963 |
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