OCI closing Korean solar grade polysilicon plants on US$636m impairment charge

Facebook
Twitter
LinkedIn
Reddit
Email
PV Tech recently reported that major China-based polysilicon producer, Tongwei Group had ramped capacity to 80,000MT per annum and has guided plans to increase production to 290,000MT in 2023, subject to market demand. Image: Tongwei

Major Korean polysilicon producer, OCI Chemical is to close two solar grade polysilicon plants in Korea as production costs are almost double the current record low ASPs. 

The company had previously reported in its fourth quarter 2019 financial results that it would take a KRW 750.5 billion (US$636 million) asset impairment loss on subsidiaries, notably its solar grade polysilicon plant in Gunsan, Korea, as well as a KRW 10.4 billion loss on polysilicon inventory write down.  

This article requires Premium SubscriptionBasic (FREE) Subscription

Unlock unlimited access for 12 whole months of distinctive global analysis

Photovoltaics International is now included.

  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Unlimited digital access to the PV Tech Power journal catalogue
  • Unlimited digital access to the Photovoltaics International journal catalogue
  • Access to more than 1,000 technical papers
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

OCI has since been reported to have announced plans to close the two solar grade polysilicon plants it operates in Korea, retaining a third that produces electronic grade polysilicon. The company will continue to operate its solar-grade and electronics grade polysilicon plant in Malaysia. 

The key problem for polysilicon producers has been the ramp up of new low-cost polysilicon capacity in China, the main market for the high-purity material. Polysilicon processes remain at record low levels and way below many small-scale producers, including China, which have seen many stop production in 2019. 

Recently, PV Tech reported the financial challenges facing Wacker Chemie, which blamed Chinese government support of its domestic polysilicon producers for the need to make a major write-down of its polysilicon production facilities in Germany and the US with a €750 million impairment charge.

Subsequently, Wacker reported its polysilicon division sunk to a preliminary EBITDA loss of €55 million in 2019 from an EBITDA of €72.4 million in 2018, which in turn had been a 75% decline from 2017.

Media reports in Korea also highlighted that the other Korean polysilicon producer, Hanwha was also considering closing production plants, due to the below production cost polysilicon pricing, dictated by China’s investment in leading-edge low-cost capacity in recent years. The company had recently been cutting production at its polysilicon plant in Yeosu.

PV Tech recently reported that major China-based polysilicon producer, Tongwei Group had ramped capacity to 80,000MT per annum and has guided plans to increase production to 290,000MT in 2023, subject to market demand. 

7 October 2025
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 7-8 October 2025 is our third PV CellTech conference dedicated to the U.S. manufacturing sector. The events in 2023 and 2024 were a sell out success and 2025 will once again gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing in the U.S. out to 2030 and beyond.
10 March 2026
Frankfurt, Germany
The conference will gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing out to 2030 and beyond.

Read Next

Premium
July 25, 2025
At the SNEC expo, Carrie Xiao took the temperature of the industry as it seeks a way out of cutthroat competition and squeezed margins.
Premium
July 25, 2025
Prices of products across various segments of China's PV industry chain—polysilicon, wafers, cells, modules—have begun to rise recently.
July 25, 2025
According to a report from the International Renewable Energy Agency (IRENA), the global levelised cost of electricity (LCOE) for solar PV reached US$0.043/kWh in 2024.
July 24, 2025
China has installed 14.36GW of solar PV in June 2025, down 85% from the previous month and also decreasing 38% from the same period in 2024.
July 23, 2025
A rise in global tariffs could impact solar PV and battery energy storage system (BESS) installations in the US and EU by up to 10% by 2035.
July 22, 2025
Chinese module manufacturer JA Solar will supply 1GW of solar modules to UAE power company Masdar for two projects in Azerbaijan. 

Subscribe to Newsletter

Upcoming Events

Media Partners, Solar Media Events
September 2, 2025
Mexico City, Mexico
Solar Media Events
September 16, 2025
Athens, Greece
Solar Media Events
September 30, 2025
Seattle, USA
Solar Media Events
October 1, 2025
London, UK
Solar Media Events
October 2, 2025
London,UK