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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $1,120,660 | $1,244,478 | $1,382,186 | $1,477,094 | $1,349,009 | $1,310,434 | $1,544,716 |
| Decolourising earths & fuller's earth | $14,661 | $12,939 | | | | | |
| Fire-clay | $14,728 | $110,925 | $118,140 | $179,638 | $82,193 | $103,310 | $164,381 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $517,377 | $593,089 | $592,467 | $683,706 | $597,228 | $634,586 | $684,188 |
| Andalusite, kyanite & sillimanite | | $15,221 | $135,677 | $251,199 | $171,803 | $234,365 | $399,842 |
| Mullite | $10,538 | $23,950 | $13,862 | $148,931 | $2,100 | $17,929 | $114,484 |
| Chamotte/dinas earths | $120,960 | $69,579 | $117,564 | $92,211 | $44,281 | $69,970 | $443,702 |
| Total | $1,798,924 | $2,070,181 | $2,359,896 | $2,832,779 | $2,246,614 | $2,370,594 | $3,351,313 |
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