This summary highlights material information regarding the offering contained elsewhere in this prospectus supplement, but may not contain
all of the information that may be important to you. You should read this entire prospectus supplement and the accompanying prospectus carefully, including the matters discussed under the caption Risk Factors in this prospectus
supplement and in our Annual Report on Form 10-K for the year ended December 31, 2012 and the more detailed information and financial statements and related notes appearing in the documents incorporated by reference in the accompanying
prospectus. As used herein, (i) the Company, we, SunEdison, us and our refer to SunEdison, Inc. and its consolidated subsidiaries and their respective predecessors,
(ii) SunEdison, Inc. refers to SunEdison, Inc., exclusive of its subsidiaries and (iii) downstream solar refers to our activities in connection with project development, distribution and installation of solar energy
SunEdison is a major developer
and seller of photovoltaic energy solutions and a global leader in the development, manufacture and sale of silicon wafers to the semiconductor industry. We are one of the worlds leading developers of solar energy projects and, we believe, one
of the most geographically diverse. We believe that our technology leadership in silicon and downstream solar are enabling us to expand our downstream customer base and lower costs throughout the silicon wafer supply chain.
SunEdison is organized by end market, and has two reportable industry segments: Solar Energy and Semiconductor Materials. Our Solar Energy
business provides solar energy services that integrate the design, installation, financing, monitoring, operations and maintenance portions of the downstream solar market for our customers. The results of the business include the operating of,
leasing of and sale of solar energy systems and services to customers who purchase renewable energy by delivering solar power to them under long term power purchase arrangements and feed in tariff arrangements. Our Solar Energy business also
manufactures polysilicon, silicon wafers and solar modules to support our downstream solar business, as well as for sale to external customers. Our Semiconductor Materials business includes the development, production and marketing of semiconductor
wafers with a wide variety of features satisfying numerous product specifications to meet our customers exacting requirements, which wafers are utilized in the manufacture of semiconductor devices. As described in greater detail in
Recent Developments below, on September 9, 2013, our newly formed subsidiary that will own our Semiconductor Materials business filed a registration statement with the SEC to register the initial public offering of its common stock.
Solar Energy Business
of our downstream solar business, our Solar Energy business manufactures polysilicon, silicon wafers and solar modules. While there continued to be external solar wafer sales during 2012, these sales were significantly diminished from prior year
sales levels and, going forward, solar wafer sales to external parties are expected to continue to decline to or remain at lower levels given our strategic shift to primarily supplying wafers for internal consumption by our solar energy services
business. Additionally, our Solar Energy business will sell solar modules to third parties in the event the opportunity aligns with our internal needs.
We provide our downstream customers with a simplified and economical way to purchase renewable energy by delivering solar power under
long-term power purchase arrangements with customers or feed-in tariff arrangements with government entities and utilities. Our solar energy services business is heavily dependent upon government subsidies, including U.S. federal incentive tax
credits, state-sponsored energy credits and foreign feed-in tariffs. In certain jurisdictions, the sale of a solar energy system would not be profitable today