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To All Cat Owners:
In recent weeks we have received a number of inquiries regarding the safety of scoopable cat litter containing sodium bentonite. These inquiries come as a result of an inaccurate and misleading story that recently appeared on the Fox News Channel... Learn More, (view pdf).



“The Sorptive Minerals Institute (SMI) is the not-for-profit, national trade association representing the producers and marketers of products made from absorbent clay minerals.    SMI was founded in 1970 to represent this billion dollar industry, whose products have a wide variety of commercial, industrial, agricultural and consumer applications.  SMI serves as the marketing, promotion and research arm of the absorbent clay industry with the goal of enhancing long-range growth and profitability. Learn more about SMI>

Attapulgite is a term that is synonymous with the more commonly used palygorskite. Bentonite is an industrial ore that is mined throughout the world. Montmorillonite is a layered silicate belonging to the smectite group of phyllosilicate minerals. It is formed primarily by the alteration of extrusive volcanic rocks such as volcanic ash falls and ash fall tuffs. Learn more about Minerals & Ores>

Active membership in the Sorptive Minerals Institute (SMI) is open to any firm or corporation that produces and/or sells sorptive minerals, which are defined to include a variety of clays, specifically attapulgite, bentonite, diatomite and montmorillonite. In addition, the firm or corporation must have been actively engaged in processing and/or selling a significant quantity of sorptive minerals into the following markets for at least one and one half years. Learn more about Membership Information>

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©2007 Sorptive Minerals Institute.

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SMI, a Trade Association for Absorbent Clay Manufacturers, Marketers, and Processors