Yingli Green Energy Signs New Supply Agreement with Wacker Chemie AG

Business Wire, September 17, 2007 Monday 10:00 AM GMT

Yingli Green Energy Holding Company Limited (NYSE:YGE) ("Yingli Green Energy" or the "Company"), a leading vertically integrated photovoltaic ("PV") product manufacturer in China, today announced that it has entered into a new mid to long term agreement with Wacker Chemie AG ("Wacker") of Germany. Under the terms of the agreement, Wacker will supply Yingli Green Energy with polysilicon from 2009 to 2011. The total amount of polysilicon supplied will allow Yingli Green Energy to produce over 80MW of PV modules over the life of the agreement.

Mr. Liansheng Miao, Chairman and CEO of Yingli Green Energy, commented, "This fourth supply agreement, together with our three existing long-term supply agreements with Wacker, further exemplifies the solid partnership that we have had with Wacker AG since 2003. We believe this additional agreement will further enable our ability to complete the next 200MW capacity expansion plan on schedule"

Mr. Reimund Huber, Director of Marketing & Sales of Wacker, commented, "As a market leader in an area facing rapidly growing demand, we are glad to strengthen and diversify our relationship with Yingli Green Energy. We believe this agreement will benefit both partners and it coincides with our previously announced strategy of reaching a total capacity of 21,500 metric tons by the end of 2010."

About Yingli Green Energy

Yingli Green Energy Holding Company Limited ("Yingli Green Energy") is one of the leading vertically integrated photovoltaic ("PV") product manufacturers in China. Through the Company's principal operating subsidiary in China, Baoding Tianwei Yingli New Energy Resources Co., Ltd., Yingli Green Energy designs, manufactures and sells PV modules and designs, assembles, sells and installs PV systems that are connected to an electricity transmission grid or those that operate on a stand-alone basis. With 200 MW of total annual production capacity in each of polysilicon ingots and wafers, PV cells and PV modules, Yingli Green Energy is currently one of the largest manufacturers of PV products in China. Additionally, Yingli Green Energy is one of the limited number of large-scale PV companies in China to have adopted vertical integration as its business model. Yingli Green Energy currently plans to gradually expand annual production capacity of polysilicon ingots and wafers, PV cells and PV modules to 400 MW by the end of 2008 and to 600 megawatts by 2010. Yingli Green Energy sells PV modules under its own brand name, Yingli Solar, to PV system integrators and distributors located in various markets around the world, including Germany, Spain, China and the United States.