American Gypsum has been manufacturing, selling, and distributing gypsum wallboard products since 1985. Serving the drywall i ... ndustry with quality products that are sold throughout the United States. A unique, professional commitment to the highest level of customer service; a strong belief in teamwork; investment in employee training; and state-of-the-art manufacturing equipment create a consistent quality product and a company that surpasses the industry. American Gypsum’s mines, located in close proximity to the production plants, contain some of the purest gypsum deposits in North America. This exceptional gypsum, sandwiched between 100% recycled front and back paper, is the key to the optimum workability, light weight, and strength of American Gypsum wallboard products. American Gypsum, a full-line producer of gypsum board products, is better able to serve the needs of all our customers. The most modern production facilities with advanced technology, control equipment, and in-house accredited laboratories enable American Gypsum to ensure quality products that are readily accepted across the country. The production plants located in Albuquerque and Bernalillo, NM; Duke, OK; Gypsum, CO; and Georgetown, SC ship their products via trucks and rail cars to American Gypsum’s customer base. A fleet of American Gypsum rail cars and an ever-expanding system of rail-served distribution centers located throughout the country give American Gypsum a widely extended service area. American Gypsum is the fifth largest producer of gypsum wallboard in North America operating five gypsum plants with six production lines with an annual capacity of nearly four billion square feet. read more