Samuel J. Heyman

International Specialty Products, Inc. manufactures derivative chemicals. Its chemicals include vinyl ether polymers, polyvinyl pyrrolidone polymers, solvents, pigments and other chemicals. The company sells the mineral roofing granules to the United States roofing industry for use in the manufacture of asphalt roofing shingles. International Specialty Products was founded in 1991 and is headquartered in Wayne, NJ.

International Specialty Holdings LLC manufactures and supplies chemicals mineral products for personal care, pharmaceutical, food, beverage, and industrial applications. It operates through three segments, Specialty Chemicals, Industrial Chemicals, and Mineral Products. The company's products include butanediol, tetrahydrofuran, and N-methyl pyrrolidone. The firm was founded in 2001 and is headquartered in Wilmington, DE.

ISP Minerals, Inc. manufactures and supplies roofing granules and ceramic-coated. The company offers colored granules used in roofing shingles to roofing industry customers throughout the US.. It has locations Ione, California, Annapolis,Missouri, Charmian, Pennsylvania, and Pembine, Wisconsin. The Firm is headquartered in Hagerstown, MD

Hercules, Inc. used to manufacture and market specialty chemicals. It operated through two segments, Performance Products segment and Additives segment. The company was founded in 1912 and was headquartered in Wilmington, DE.

Standard Industries, Inc. engages in the design, manufacture, and sale of roofing and waterproofing products. The firm offers solar residential program, fiber cement siding, adhesive, primers and sealants, and modified bitumen roofing. The company was founded in 1886 and is headquartered in New York, NY.

G-I Holdings, Inc. manufactures and markets roofing products and accessories for the residential and commercial markets. It provides heating, ventilating and air conditioning, decking, railing and decorative stone products. The firm's products include roofing shingles, slate roofing, commercial and flat roofing systems, asphalic accessories, ductwork, non-woven fabrics, and fiber-cement siding. The company was founded in 1886 and is headquartered in Parsippany, NJ.