| United States Gypsum Company |
| 34405 West 12 Mile Rd, Suite 242 |
| Farmington Hills, MI, 48331 |
| Phone: (248) 324-0166 |
| Fax: (248) 324-1418 |
| Contact: Dan Scully |
| URL: www.usg.com |
| Associate Member, Other Specialties |
| Whitson Insulation Company |
| 4949 Fernlee Ave |
| Royal Oak, MI, 48073 |
| Phone: (248) 435-2300 |
| Fax: (248) 435-5516 |
| Contact: Craig Whitson |
| Associate Member, Carpentry, Other Specialties |