World Minerals Inc.

World Minerals Inc. is the world's leading supplier of premium quality diatomite and perlite products, marketed for its Celite, Harborlite and Europerlite subsidiaries through a worldwide network of sales offices in 14 countries. The diatomaceous earth and perlite products, essential to many industrial applications, are marketed worldwide under several brand names, and are recognized as the brands of choice in their geographic regions.

World Minerals Inc. was established in 1991. Headquartered in Santa Barbara, California, USA, World Minerals is a subsidiary of Alleghany Corporation (NYSE Symbol "Y").

The Corporation is the industry leader in product research and development and minerals processing technology. And, as a World Minerals customer, you buy more than consistently high quality products. You receive the World Minerals Advantage, unmatched technical service, sales and customer support.