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| Commodity | 2005 | 2006 | 2007 |
| Hydrogen fluoride (hydrofluoric acid) | $41,237 | $2,412 | $1,395 |
| Inorganic acids other than hydrogen fluoride | $61,030 | $5,545 | $5,359 |
| Carbon dioxide | $15,841 | $372 | $5,293 |
| Silicon dioxide | $93 | $7,720 | $19,268 |
| Sulphur dioxide | $396,466 | $363,740 | $123,226 |
| Inorganic oxygen comps. of non-metals other than inorganic acids/carbon dio ... | $85,566 | $127,256 | $59,509 |
| Total | $600,233 | $507,045 | $214,050 |
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