SOURCE: Poly Plant Project, Inc.

Poly Plant Project, Inc.

March 23, 2010 13:12 ET

New Chinese Polysilicon Production Plant Uses Advanced Process Technology & Equipment From Poly Plant Project, Inc.

World-Class 3000 MTY Capacity Plant in Leshan, China Now Producing High-Purity Polysilicon Using US Company's Technology & Equipment

LESHAN, CHINA--(Marketwire - March 23, 2010) -  Ledian Tianwei Silicon Technology Co. Ltd. has successfully started up its polysilicon production plant in Leshan, Sichuan Province, China, and is now producing high-purity polysilicon that will be used to produce cells and modules for the solar industry and wafers for the electronic industry.

Ledian Tianwei Silicon Technology Company contracted with Poly Plant Project, Inc. (PPP), purchasing PPP's process technology and equipment package. This package integrated state-of-the-art Chemical Vapor Deposition (CVD) Reactors to produce high-purity polysilicon, Thermal Converters to recycle and convert silicon-tetrachloride (STC) to trichlorosilane (TCS), pressure vessel power supply systems, ancillary equipment and operator and safety training at Ledian's polysilicon production plant. 

"Poly Plant Project's 36-L Reactor is the market leader in terms of polysilicon output, production capacity and efficiency for 36 rod (18 pair) CVD Reactors," said Dr. Jesse Chen, President of PPP. "PPP's engineers have developed our unique 36-L CVD Reactors to achieve a minimum annual production capacity of 200 Metric Tons per Year (MTY) of high-purity polysilicon. Our Model 36-L and our new, high-capacity Model 54-R 54 rod reactors are the most advanced, high-yield polysilicon deposition Reactors available. PPP's 36 and 54 rod Reactors are unparalleled in their efficient production of polysilicon consuming the least amount of electricity per kilogram of polysilicon produced."

Poly Plant Project, Inc. was able to accelerate its equipment delivery, enabling the Ledian plant to be completed five months ahead of schedule. The equipment was commissioned in August 2009 and the plant started in production in September. All CVD Reactors are operating and the company is now producing high-purity solar grade and electronic grade polysilicon at a rate of 1500 Metric Tons per Year which is nearly 50% of the plant's 3000 MTY nameplate capacity.

Ledian Tianwei Silicon Technology Company is using PPP's state-of-the-art STC-to-TCS Thermal Converters, Converter power supplies, graphite elements, and ancillary equipment. The STC-to-TCS Thermal Converters are critical pieces of equipment that enable the plant to recycle recovered waste gases that are produced during the polysilicon deposition/production process. The Ledian plant is operating PPP's Thermal Converters at a highly efficient rate converting more than 20% of the silicon-tetrachloride to trichlorosilane with each pass.

"PPP's CVD Reactors, Thermal Converters and power supplies are designed for safe and efficient operation while minimizing the consumption of electricity enabling plant owners to enjoy the lowest possible operating costs thereby reducing the cost of each kilo of poly produced," said Terry T. Kunimune, Chairman and CEO of Poly Plant Project, Inc. "Ours is a very versatile pressure vessel design enabling it to be used as either a high-output CVD Reactor or a highly-efficient Thermal Converter. Using PPP's proprietary graphite chucks, electrodes, direct temperature control and on-site operator and safety training, enables our customers to enjoy the shortest learning curve as they go from commissioning to first production run to continuous, safe and stable operation. We are not surprised at how quickly the Ledian plant has gone into polysilicon production as their highly qualified, professional team was enabled by PPP's complete package of equipment, technology and training. We look forward to their continued success as they ramp up production and ultimately exceed their plant's nameplate capacity."

About Poly Plant Project, Inc. (PPP)
Poly Plant Project, Inc. (PPP) provides the photovoltaic and semiconductor industries with advanced, world-class polysilicon production solutions. From modular packages to complete plants, PPP's customized solutions integrate advanced and proven, process technology, engineering, equipment and field services required to design, build and operate world-class, high-purity polysilicon production plants.

PPP provides complete customized process technology and equipment packages for polysilicon production plants. PPP's state-of-the-art advanced, high-output Chemical Vapor Deposition Reactors have been designed for safe, efficient operation by minimizing electrical consumption. In addition to high-output CVD Reactors, PPP-E's complete equipment package includes advanced technology STC-to-TCS Thermal Converters, matching power supplies, transformers and ancillary items as well as operator and safety training and start-up support. 

PPP's solutions enable customers to build and safely operate efficient and reliable poly plants that deliver attractive Capex and minimized Opex. PPP's focus on reducing operating costs enables poly plant owners and investors to maximize profits from the continuous, safe and reliable production of low-cost, high-purity polysilicon.

PPP's slogan is "Advanced solutions for polysilicon production. The solar industry begins with us." Poly Plant Project, Inc.'s world headquarters is in Burbank, California, USA. For more information visit

About Leshan Ledian Tianwei Silicon-Tech Co., Ltd. 
Ledian Tianwei Silicon Technology Co. Ltd. is located in the high-tech district of Leshan, China. The company is a joint venture between Leshan Electric Power Co. Ltd. (Leshan, China) and Tianwei Baobian Electric Co. Ltd. (Baoding, China). The project covers an area of some 33 million square meters, with a total investment of some 2.2 billion Yuan ($314M). Leshan Electric Power holds a 51% stake, and Tianwei Baobian Electric holds 49%. 

Contact Information

  • Contact: Dan Feinberg
    Poly Plant Project, Inc. (PPP)
    Email Contact