Effective with shipments on and after Monday, August 30, 2010, National Gypsum Company and its subsidiary entities will increase prices as follows:

• 20% - Our entire Gypsum Wallboard product line, including our e²XP family of glass mat products
• 5% - Interior Finishing Products (complete product line except Joint Tape)
• 10% - Proform® Brand Joint Tape

See attachement for details