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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. Founded in 1970, SMI represents a multi-billion dollar industry whose products have a wide variety of commercial, industrial and consumer applications; from cat litter to cosmetics, and from pharmaceuticals to paints. SMI serves as the marketing, promotion and research arm of the absorbent clay industry with the goal of enhancing long-range growth and profitability.

Take a moment to explore this site to learn more about SMI, get answer to frequently asked questions on cat litter, and learn about the ways in which these versatile minerals are used.