Investor Presentaiton

BORAL® High-performance ceilings business provides a strong, complementary adjacency that further differentiates the joint venture #2 USG global share in the industry with leading brands International manufacturing and market coverage Profitable business with stable margins through the US cycle Solutions focused on performance, sustainability and aesthetics Acoustical Tile ■Full-line high performance offering ■ Sustainable solutions ■ Architectural specification focused USG Suspension Systems Globally recognised DONNⓇ grid ■ World class manufacturing ■Complete code approvals ■ Partnered with GE for integrated LED lighting solution Specialty Solutions ■ Innovator ■Leading brands ■ Enhances the aesthetics of finished space ■ Creates a basis of design for the specifier Commercial Segments ■Extends the portfolio for commercial projects Strong in all commercial segments ■ Broadens the portfolio of product solutions for commercial projects Content 1. Overview of the transaction / strategic rationale 2. USG's IP/Technology and adjacent products 3. JV's combined footprint and markets 4. Synergies 5. Key transaction terms 6. Company specific factors 7. Summary Appendix 13 BORAL® USG 14

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