Sumco closing silicon plant in Ohio

June 25, 2009
Facebook
Twitter
LinkedIn
Reddit
Email

Sumco Phoenix Corporation is to close its silicon wafer manufacturing plant in Maineville, Ohio, USA due to the weaker than expected demand and semiconductor industry’s move to larger wafer sizes. The Ohio plant also makes solar silicon ingots, which will also be affected by the closure. Consolidating its operations, Sumco said that production would shift to its other plants in the U.S. and overseas.

“This was a very hard, yet necessary conclusion to reach for the continued survival of our business,” commented Shigetoshi Shibuya, SUMCO Phoenix Corporation President and Chief Executive Officer. “The employees at Maineville have tried valiantly for some time to make this work, and we are extremely grateful to them; however, our operations there have been severely impacted by both the unexpected nosedive of the global economy and changes within the industry itself over the past year.”

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

Approximately 360 workers will be affected by the closure, which is expected to be completed by June, 2010. Sumco had bought the plant in 1989. It has no current plans to sell the plant or surrounding real estate, the company said.

Read Next

October 28, 2025
GreenYellow plans to invest US$116 million in Poland over the next three years to expand its installed capacity and customer base.
Premium
October 28, 2025
BESS are 'the new player that everyone is talking about,' in Europe’s power purchase agreement (PPA) space, according to LevelTen.
October 28, 2025
GoldenPeaks Capital secures EUR114 million (US$132 million) financing package for two solar PV Portfolio in Poland.
October 28, 2025
Navigating module procurement in this financial environment will be a key topic of conversation at the PV ModuleTech Europe 2025 event.
October 28, 2025
PV projects operate close to technical and financial limits, meaning that inaccurate inputs can have performance and profitability impacts.
October 28, 2025
Chinese solar inverter producer GoodWe has launched a new “low noise, low weight” string inverter for the European corporate & industrial solar market.

Subscribe to Newsletter

Upcoming Events

Upcoming Webinars
November 12, 2025
10am PST / 1pm EST
Solar Media Events
November 25, 2025
Warsaw, Poland
Solar Media Events
December 2, 2025
Málaga, Spain
Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 10, 2026
Frankfurt, Germany