American Colloid Company is one of the world’s leading producers of bentonite clay. Bentonite’s unique chemical structure gives it a diverse range of capabilities, enabling it to act as a thickener, sealant, binder, lubricant or absorbtion agent. The Company’s principle markets include metalcasting, pet products, oil and gas well drilling, industrial specialties and agriculture. With mining operations throughout North America and a sister subsidiary with mining operations throughout the world, American Colloid’s trademark Additrol line is an industry standard in the metalcasting industry. Ferro-alloy bricks and briquettes are also part of the Metalcasting Products Group’s product line. American Colloid’s Premium Gel is ideal for multiple applications in oil well drilling. The Company’s Pet Products Group also offers a complete line of traditional, scoopable and alternative cat litters.

AMCOL International Corporation

AMCOL International Corp. is a leading international producer and marketer of value-added, specialty minerals and related products. AMCOL operates four primary segments: Minerals & Materials, Environmental, Oilfield Services and Transportation, providing a diverse range of products and services. Major markets served include metalcasting, detergents, pet products, building materials and personal care. AMCOL's transportation segment acts as a servicing operation for other business segments and outside customers.

AMCOL's common stock is traded on the New York Stock Exchange under the symbol ACO. Established in 1927, AMCOL has consistently paid dividends to its shareholders since 1937.