News on Longi

News on suppliers, market trends and technology innovations in polysilicon and wafer production is selected, assessed and written for you by Bernreuter Research.

Polysilicon sales contracts of Tongwei

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Chinese Tongwei Group will deliver 70,000 tons of polysilicon to the second-largest manufacturer of monocrystalline wafers, Zhonghuan Semiconductor, from 2018 through 2021.

Polysilicon supply contracts of Longi

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Leading monocrystalline solar wafer manufacturer Longi has signed a contract with Chinese Tongwei Group for the delivery of 55,000 metric tons of polysilicon between May 2018 and December 2020.

Diamond wire saw with monocrystalline silicon ingot

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pv magazine has published a background report on the surge of monocrystalline technology, driven by the two leading Chinese mono wafer manufacturers Longi and Zhonghuan Semiconductor.

Hall with Siemens reactors for chemical vapor deposition (CVD) of silicon at Daqo’s polysilicon plant in Shihezi, Xinjiang

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After closing a supply contract with South Korean polysilicon maker OCI in early February, leading monocrystalline wafer manufacturer Longi has signed a contract with Chinese producer Daqo.

Monthly polysilicon imports into China from February 2017 through January 2018

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After the low in December, polysilicon imports into China surprisingly surged to an unusually large volume of 16,261 metric tons in January, an increase of 29.7% month over month.

OCI’s polysilicon production capacity expansion

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South Korean polysilicon producer OCI has signed two big supply contracts with Longi and JinkoSolar, respectively, but has not yet decided about expanding its second plant in Malaysia.

Monocrystalline silicon ingot

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Daqo New Energy, a leading Chinese producer of high-quality polysilicon, has announced that most of its 2018 production capacity of approx. 21,000 metric tons is already under contract.

Monthly polysilicon imports into China from January through December 2017

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After a short recovery in November, polysilicon imports into China fell back to 12,534 metric tons in December, a decrease of 16% month over month.

polysilicon chunks

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Several factors are playing a role in driving up the current polysilicon spot price.