South Korean polysilicon manufacturer OCI to invest $858.5 million in new plant

Facebook
Twitter
LinkedIn
Reddit
Email

In a bid to join the leading global producers of polysilicon, South Korean chemical manufacturer OCI plans to restart construction on a new poly plant inside its existing facility in Gunsan in January. The company (the former DC Chemical) will invest 1 trillion Won (approximately $858.5 million) in its Phase 3 (P3) factory, which will have an annual manufacturing capacity of 10,000 metric tons when commercial production begins in 2011, bringing its total annual poly capability to 27,000 metric tons.

OCI, the only company in Korea with its own Siemens process-based polysilicon manufacturing technology, has already built the 6500-metric-ton P1 plant (completed in December 2007) and the 10,500-metric-ton P2 expansion (completed in July 2009).

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

When plans were announced in June 2008, P3 was originally scheduled for completion in December 2009, but its construction was postponed temporarily because of the poly oversupply and macroeconomic conditions, before getting the go-ahead from the company’s board to recommence the buildout earlier this month.

The new plant is expected to directly generate 500 jobs, according to OCI.

The company believes that despite the continuing oversupply of polysilicon, the market demand for high-efficiency solar cells and preference for high-purity polysilicon will grow steadily. OCI says it is already producing 10-nine grade polysilicon, which is one grade higher than 9-nine purity silicon, and the company’s plan is to sell most of the additional product through long-term supply contracts.

Read Next

June 10, 2026
Australia leads the world in residential rooftop solar, but its commercial and industrial sector has deployed only 5.6GW.
June 9, 2026
Ark Energy has been granted approval by AEMO and Transgrid to connect its 435MW Richmond Valley solar-plus-storage project to the NEM.
June 9, 2026
Revolve Renewable Power is acquiring a 125MW portfolio of utility-scale solar development projects in the US.
June 9, 2026
Zelestra has signed a long-term power purchase agreement (PPA) with Meta for the 180MWdc Palmera Solar Plant in Freestone County, Texas.
June 9, 2026
A US Federal judge has revoked a law preventing solar PV and wind projects from qualifying for tax credits by committing 5% of the project’s value.
June 9, 2026
As solar deployments are set for a record year in the US, module supply, quality, and reliability will be key topics of conversation at PV ModuleTech USA 2026.

Upcoming Events

Solar Media Events
June 16, 2026
Napa, USA
Media Partners, Solar Media Events
June 30, 2026
Sacramento, California
Media Partners, Solar Media Events
August 25, 2026
São Paulo, Brazil
Media Partners, Solar Media Events
September 1, 2026
Mexico City, Mexico
Media Partners, Solar Media Events
September 9, 2026