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LONGI profile

      Xi'an LONGi Silicon Materials Corp. (“LONGi” for short) established in 2000, is the largest solar monocrystalline silicon manufacturer in the world providing high quality products and services for the photovoltaic and semiconductor industries around the world.In April 2012, LONGi was listed on the Shanghai Stock Exchange (Stock Code: 601012). In February 2013, the company was named as "2013 China 10 most innovative companies" by American famous media "Fast Company". In September 2014 LONGi was selected by ACCA as "The future top 100 companies in China" ranking No.17. In Dec. 2014, the company was selected into “2014 Chinese Western listing Corporation TOP50".    

        LONGi is headquartered at Xian National Civil Aerospace Industrial Base, its crystal pulling factories are located at Zhongning and Yinchuan of Ningxia, and slice factories at Xi'an and Wuxi. By the end of 2014, LONGi was capable of producing and processing 3GW mono ingots and mono wafers. With the mission of “Utilizing solar energy, building a green world”, LONGi continuously keeps more than 50% annual growth rate of production capacity. 6GW ingot capacity and the same scale wafer production in 2017 are set as the goal to meet the growing market and customer needs.

       LONGi’s main products are monocrystalline silicon ingots and wafers of 6 inches, 6.5 inches and 8 inches. LONGi is also promoting M1 and M2 large size wafers. Compared with standard wafer (156 x156mm),the power generation of M1 and M2 is improved by 1.63% and 2.25% per wafer respectively.
      Currentlywafers with the thickness of 190μm, 180μm and 170μm manufacturedby LONGi using diamond wire cutting technology have been widely applied. The latest developed 130μmwafers have already been applied successfully. In the future, LONGi will promote thinner monocrystalline silicon wafer.
      By using n-type monocrystalline silicon wafers, the solar cell can achieve higher conversion efficiency and that ensures the promising future of monocrystalline silicon solar cells. 
      LONGi has constant creative innovations and  98 authorized patents which ensure the company's leading position in the industry and enable LONGi to create greater values for customers' present and future. LONGi also actively promotes the standardization of photovoltaic industry by participating in composing many national or industrial standards.
     LONGi strives to create a global-leading manufacturer of solar energy equipment, promoting the early arrival of "grid parity" of photovoltaic power generation, and helping more people to enjoy the clean energy.

  Through years of development and integration and by principle of rational allocation of resources, LONGI centers at Xi'an - an important city in Northwest China, and owns two crystal pulling production bases in Zhongning and Yinchuan of Ningxia and two slice production bases in Xi'an and Wuxi, as well as a technology-leading mortar recovery company in Xi'an - Xi'an Tongxin Semiconductor Materials Co., Ltd.

Rational factory layout and efficient resource allocation improve the competitiveness of the company. LONGI continuously improves collectivization management and control structures and strives to form an efficient management mode.

  The company keeps strategic cooperative partnership with upstream and downstream of the photovoltaic industry chain to promote formation of the good industrial ecological chain; concentrates on advantageous resources to develop R&D capacity of crystal pulling and slice technologies, improve the crystal pulling and slice process level, and keep the professional leading in this section; provides customers with specialized value-added services, promotes improvement of products and cooperation and enhances customer value through quick customer feedback and considerate technical services.

  The company rationally plans the market-oriented production capacity to ensure customer needs and increase market share; meanwhile, dilutes R&D and management costs, reduces supply chain and logistic costs and further optimizes system process costs.

Our major advantages:
•Advanced technical process in crystal pulling and slice fields and continuous innovation investment;
•Focusing on solar monocrystalline silicon domain, cooperating with upstream and downstream of the industrial chain, and concentrating on improving product and service quality;
•Original understanding on cost control and control capacity of refined management;
•Cooperating with international leading solar cell companies and upstream suppliers;

•Professional core management team and technology team with high quality and strong cohesion.
Copyright © 2011 All Rights Reserved: Xi’an LONGi Silicon Materials Corp., Shaan ICP Rec. No. 12001146
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