Imerys Filtration

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World Minerals is among the world's leading suppliers of engineered products derived from diatomaceous earth and expanded perlite. The company s products are used in a number of applications, including liquid/solid separation, liquid/liquid separation, bioreactor support, the modification of the physical and optical properties of polymeric materials and in the promotion of plant growth. World Minerals is also a leading supplier of semi-finished products, such as crushed and screened perlite ore. The company operates a global network of 24 production facilities. It products are used in virtually everywhere, and are available from the company's 16 direct sales offices or through its distributors and agents. World Minerals is headquartered in Santa Barbara, Calif.