Throughout our over 50 years of operations, we have pioneered a number of semiconductor industry
firsts, including the development of the dislocation-free Czochralski silicon crystal growth process and the chemical-mechanical planarization process, as well as the initial production and commercialization of 100mm and 200mm semiconductor
wafers. More recently, we have been a leader in the development of advanced substrates such as epitaxial, or EPI, wafers and wafers for the silicon-on-insulator, or SOI, market, which enable advanced computing and communications
We primarily sell our products to all of the major semiconductor manufacturers in the world, including integrated device
manufacturers and pure-play semiconductor foundries, and to a lesser extent, leading companies that specialize in wafer customization. During 2012, our largest customers were Samsung, Taiwan Semiconductor Manufacturing Company and
STMicroelectronics. We operate facilities in major semiconductor manufacturing regions throughout the world, including Taiwan, Malaysia, South Korea, Italy, Japan and the United States. We have chosen to locate our manufacturing facilities
in regions that offer both low operating costs and close proximity to our customers to facilitate collaboration on product development activities and shorten product delivery times.
In recent years, the growth in semiconductor wafer demand has been largely attributable to the proliferation of mobile devices such as smart
phones and tablets. These devices require semiconductors that are energy efficient, low cost, high performance and highly integrated into a small footprint. Semiconductors offering those characteristics increasingly require EPI and SOI
wafers. We believe that the combination of our process technology expertise in EPI and SOI wafer manufacturing with our capital efficiency provides us with significant opportunities as the markets for EPI and SOI wafers continue to grow.
We were formed in
1984 as a Delaware corporation and completed our initial public stock offering in 1995. Our corporate structure includes, in addition to our wholly owned subsidiaries, an 80%-owned consolidated joint venture in South Korea, MEMC Korea Company. We
also have nine consolidated joint ventures related to the construction and operation of solar energy systems. On May 30, 2013, we changed our name to SunEdison, Inc. from MEMC Electronic Materials, Inc.
Our principal executive offices are located at 501 Pearl Drive (City of OFallon), St. Peters, Missouri 63376, and our telephone number
is (636) 474-5000. Our website address is www.sunedison.com. Our website and the information contained on that site, or connected to that site, are expressly not incorporated into and are not a part of this prospectus.