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| Commodity | 2005 | 2007 | 2008 |
| Sodium metasilicates | $6,146 | $608 | $28,080 |
| Silicates of sodium other than sodiummetasilicates | $73,598 | $137,931 | $58,762 |
| Potsssium silicates | $58,554 | | |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $289,071 | $9,080 | $34,106 |
| Total | $427,369 | $147,619 | $120,948 |
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