Advanced Engineered Materials (AEM), which includes the company's Ticona engineering polymers businesses and its engineered polymers equity affiliates, is a leading participant in the global technical polymers industry. AEM develops, produces and supplies a broad portfolio of high performance specialty polymers for application in automotive, medical and electronics products, as well as other consumer and industrial applications. Approximately 70% of its business is specification-based, which drives sustainable value for its performance polymers. AEM, which constitutes 19% of Celanese’s total net sales, maintains its competitive advantage with high-quality products and services, as well as its technical knowledge in application development and product technology. Its substantial strategic affiliates also enhance its global reach.