Headquartered in West Palm Beach, Fla., Rinker Materials is one of the largest producers of heavy building materials in the United States, including Florida and Arizona. The company manufactures crushed stone, cement, concrete, asphalt and concrete blocks and pipes, as well as distributes drywall and acoustical products. Rinker Materials sells fiberglass panels in a variety of decorative styles. It specializes in drywall and acoustical product distribution and building products, including metal frames, lath and trims, joint finishing compounds, tools, finish sprays, fasteners, metal and plastic beads and trims, stucco sand and cement. Rinker Materials employs more than 8,000 associates and operates in more than 25 U.S. States. The company is a wholly owned subsidiary of Rinker Group Limited, which is located in Australia.