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World Minerals Inc. is the world's leading supplier of engineered products derived from diatomaceous earth and expanded perlite, natural raw materials possessing unusually light density, chemical inertness, high surface area and intricate structure. As a result of these unusual properties, the Company's products are used in a host 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. In addition, the Company is a leading supplier of semi-finished products, such as crushed and screened perlite ore. World Minerals operates a global network of 24 production facilities. The Company's products are used in virtually every na…