New polysilicon blow as flood forces closure of Tongwei facility

Facebook
Twitter
LinkedIn
Reddit
Email
Image: Tongwei.

Severe floods in southeastern China have forced the closure of a polysilicon facility owned by Tongwei, dealing yet another blow to the solar industry’s supply chain.

Tongwei has confirmed the closure of a 20,000-tonne polysilicon plant in Leshan City, Sichuan, after a Level 1 flood alert was issued by authorities. China’s Yangtze River runs through Sichuan, while Leshan itself sits on the interjection of a number of rivers and waterways.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Tongwei said in a statement issued to Reuters that it was told to stop production immediately by the province’s local emergency management bureau, confirming that it had evacuated all workers from the facility pending further instruction.

The company declined to comment further when contacted by PV Tech.

It serves as a fresh blow to an upstream solar sector already hit by incidents at facilities belonging to GCL-Poly/JZS and Daqo which have impacted polysilicon supply, increasing price volatility and hitting module manufacturing cost control.

Both Tongwei and LONGi have increased prices in recent months, triggered by the underlying seasonality of polysilicon supply moving into H2 but exacerbated by incidents affecting supply.

Yesterday PV Tech reported that project developers and module manufacturers alike had urged caution over recent price volatility and called for greater collaboration within the industry to help limit its impact.

20 April 2027
Istanbul, Türkiye
PV Tech has been running PV CellTech Conferences since 2016. PV CellTech Global, on 20-21 April 2027, is the meeting place for everyone invested in the growth of PV manufacturing and advancement in cell technologies, which will drive us towards the installed capacity required to power the planet by 2050. This is a gathering of key stakeholders driving capital expenditure and technologies for new PV manufacturing plants across the globe to harness the opportunities the growth of PV represents out to 2050 and beyond. The conference takes place in one conference room, where all senior peers have the same shared experience of learning and unique insight, unmatched anywhere else in the solar industry events calendar.

Read Next

August 10, 2026
Eight leading Chinese polysilicon producers have signed a joint initiative pledging unified action on standardised pricing, energy conservation, carbon reduction and outdated capacity phase-out.
August 7, 2026
India’s Ministry of New and Renewable Energy (MNRE) plans to announce a scheme covering more than 10GW of polysilicon production capacity.
August 7, 2026
The US introduced a 15% tariff on imports of products using polysilicon and set minimum prices for polysilicon and its derivatives.
August 7, 2026
Solar module manufacturer Heliene has laid off 93 employees at its Mountain Iron solar module assembly plant in the US state of Minnesota.
August 4, 2026
Tandem PV has acquired fellow nexTC, which develops thin-film metal oxide coating processes for use in tandem solar modules.
August 3, 2026
According to the Silicon Industry Branch, the average price of n-type G10L monocrystalline wafers dropped 3.61% month-on-month.

Upcoming Events

Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK
Solar Media Events
April 20, 2027
Istanbul, Türkiye