Old Bridge Chemicals copper sulfate is the primary sources of nutritional copper in the animal feed industry. It is also used extensively in water treatment as an aquatic algaecide, and numerous industrial applications. In addition, food and pharmaceutical manufacturers throughout the United States use Old Bridge copper sulfate (USP Grade) as an essential ingredient in their products. Established in 1962, Old Bridge Chemicals has become one of the leading manufacturers of Copper and Zinc chemicals in the United States. The company s zinc sulfate is an important nutritional component in animal feeds. It is also used in the production of anti-corrosive products for use in public drinking water systems and numerous industrial applications. Old Bridge s Zinc chloride finds use in a number of industrial and agricultural applications, as well. It is produced for the food and pharmaceutical industries. The company utilizes many different raw materials in its manufacturing processes. Operating on 65 acres in central New Jersey, Old Bridge Chemicals is based in Old Bridge, N.J.