As an active member of the United States Green Building Council, National Gypsum Company fully endorses the councils four R s that call for the reduction, reuse, recycling and renewal of the country s natural resources and materials. National Gypsum is a fully-integrated manufacturer and supplier of building and construction products throughout the world. Its product line includes Gold Bond BRAND gypsum wallboard, ProForm BRAND joint treatment products and PermaBase BRAND cement board as well as plaster, ceiling and abuse-resistant systems. Maintaining headquarters in Charlotte, N.C., the privately-held National Gypsum Company operates more than 40 facilities throughout the United States and Canada.