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CertainTeed®, a subsidiary of Saint-Gobain, is North America’s leading brand of sustainable exterior and interior building products. Headquartered in Malvern, Pa., CertainTeed has helped shape the building products industry for more than 100 years, through the responsible development of innovative and sustainable building products. Founded in 1904 as General Roofing Manufacturing Company, the firm's slogan "Quality Made Certain, Satisfaction Guaranteed," quickly inspired the name “CertainTeed." A subsidiary of Saint-Gobain, the world’s largest building products company, CertainTeed® is North America’s leading brand of exterior and interior building products, including roofing, siding, fence, decking, railing, trim, insulation, gypsum and ceilings. CertainTeed and its affiliates proudly have a staff of more than 6,300 employees and operate more than 60 manufacturing facilities throughout the United States and Canada. For five consecutive years, the company has received top honors from the U.S. Environmental Protection Agency for its contributions in protecting the environment and was most recently the recipient of the 2013 ENERGY STAR Sustained Excellence Award. The group had total sales of approximately $3.4 billion in 2016. www.certainteed.com Quality made Certain, Satisfaction guaranteed http://www.CertainTeed.com Visit the CertainTeed Building Knowledge Blog http://blog.certainteed.com

About Saint-Gobain : Worldwide leader in light and sustainable construction, Saint-Gobain designs, manufactures and distributes materials and services adapted to the residential, non-residential and infrastructure markets. Its integrated and innovative solutions provide sustainability, performance and well-being for its customers. The Group is guided by its purpose, “MAKING THE WORLD A BETTER HOME”. €46.5 billion in sales in 2025 162,000 employees, locations in 80 countries Committed to achieving net zero carbon emissions by 2050

As the new leader in the building materials industry, LafargeHolcim has the assets necessary to address the challenges of a new world. With a local presence in 90 countries, the most innovative cement, concrete, and aggregates solutions to meet our customers’ needs, and a commitment to health, safety, and sustainability, we have the most efficient business model and the best performing operating models and teams. LafargeHolcim Europe: The LafargeHolcim Region Europe includes 23 countries and over 24,000 employees, which means we have many different skills and capabilities available to us. The region, and the group as a whole, provides many opportunities for employees to grow and use their full potential. Careers: It is an exciting time to work in the building materials sector. The world is facing a process of rapid urbanization accompanied by increased pressure on strategic resources (water, raw materials, energy). As the new leader of our industry, LafargeHolcim is seeking to recruit, develop, and retain the best talent to help us meet the challenges and opportunities of the future. We need people eager to grow to their full potential while delivering value to our shareholders, customers, and society in general.