AMCOL International Corporation (AMCOL) is focused on the development and application of minerals and technology products and services to various industrial and consumer markets. It operates in five segments: performance materials, construction technologies, energy services, transportation and corporate. Its performance materials segment previously referred to as its minerals and materials segment is a supplier of bentonite related products. Its construction technologies segment previously referred to as its environmental segment provides products for non-residential construction, environmental and infrastructure projects worldwide. Its energy services segment previously referred to as its oilfield services segment offers a range of patented technologies, products and services for both upstream and downstream oil and gas production. Its transportation segment serves domestic subsidiaries, as well as third parties, is a dry van and flatbed carrier and freight brokerage service provider.