Manufacturers of U.S.-Made Polysilicon Praise Purchase Commitments in Phase 1 of U.S.-China Trade Deal

Critical Source of Key Material for Semiconductors, Solar Panels Could Benefit

WASHINGTON ― The United States’ three remaining manufacturers of polysilicon today thanked President Trump and praised U.S. negotiators for securing the Chinese commitment to purchase U.S. polysilicon in the Phase 1 U.S.-China trade deal, while noting any benefit for U.S. manufacturers and workers will depend on how China implements the agreement.

Polysilicon is the fundamental building block for the semiconductor and solar industries, used to make ingots and wafers for solar cells and the integrated circuits that power everything from smartphones to autonomous vehicles and electronics. The U.S. polysilicon industry represents over $10 billion in capital investment and employs thousands in high-skilled, high-wage jobs. The inclusion of polysilicon in the Phase 1 trade deal reflects recognition by U.S. government officials of the U.S. polysilicon industry’s strategic significance to American defense and energy industries and future manufacturing innovation.

“We hope this agreement will result in a more level playing field for this important building block to the solar and electronics industries,” said Mark Bassett, chairman and CEO of Michigan-based Hemlock Semiconductor Operations (HSC). “Maintaining and expanding U.S. production capacity is vital to supporting high-wage American manufacturing jobs based on high-tech innovation.”

In 2014, China closed its market to U.S. polysilicon by imposing tariffs on imports of U.S-made solar-grade polysilicon. China has heavily subsidized its own polysilicon producers since imposing the tariffs on U.S. producers and has focused on concentrating demand for polysilicon in China. This industrial policy has created massive overcapacity in China, burdening the global industry and worsening conditions for the U.S. polysilicon industry.

“Regaining meaningful market access to China, which represents over 92 percent of global polysilicon demand, is essential to the U.S. polysilicon industry,” said WACKER POLYSILICON Vice President Mary Beth Hudson, who is responsible for the company’s polysilicon plant in Tennessee. “This Phase 1 agreement represents an important first step in resuming exports and meeting the increasing demand of Chinese customers for highest quality polysilicon.”

The existing Chinese tariffs forced REC Silicon last July to shutter its $1.7 billion polysilicon plant in Moses Lake, Wash., and lay off around 450 workers. HSC had to abandon its investment of over $1 billion in a new, state-of-the-art polysilicon plant in Tennessee in 2014 after the Chinese tariffs took effect. A SunEdison polysilicon plant in Pasadena, Texas closed in 2015 and was purchased by a Chinese company, allowing China access to SunEdison’s patented technology. REC Silicon still operates a plant in Butte, Mont., while HSC has operations in Hemlock, Mich., and WACKER POLYSILICON has a plant in Charleston, Tenn.

“It is really positive that the U.S. government has recognized the importance of the U.S. polysilicon industry. Being locked out of the global market for polysilicon for the last several years has cost the U.S. high-paying jobs and billions of dollars in investment,” said Tore Torvund, CEO & President of REC Silicon.

“While we hope that this partial restoration of access to China’s polysilicon market will improve the outlook for U.S. polysilicon producers, it’s imperative that the U.S. continues to focus on developing and strengthening critical links in the solar value and supply chains, providing a market for our polysilicon and other U.S. solar manufacturers here in the vibrant domestic U.S. solar market,” he added.

About Hemlock Semiconductor

Hemlock Semiconductor ( is composed of several joint venture companies owned by DuPont, Corning Inc., and Shin-Etsu Handotai. Hemlock Semiconductor, located since 1961 in Hemlock, Mich., is a leading provider of polycrystalline silicon and other silicon-based products used in the manufacturing of semiconductor devices, solar cells, and modules. It’s the only manufacturer of polysilicon headquartered in the United States.

About REC Silicon

REC Silicon ASA is a leading producer of advanced silicon materials, supplying high-purity polysilicon and silicon gases to the solar and electronics industries worldwide, with over 30 years’ experience and best-in-class proprietary technology. REC’s production facilities are comprised of two U.S.-based silicon materials plants in Moses Lake, Wash., and Butte, Mont. REC Silicon’s corporate headquarters is in Fornebu, Norway.


WACKER POLYSILICON is a global leader in the production of hyperpure polysilicon, used in semiconductors and the growing solar energy market. The Germany-headquartered company began producing polysilicon in Charleston, Tenn., in 2016. WACKER POLYSILICON is part of WACKER (, which has other chemical facilities in the United States.

For more information:

Kathy Barks Hoffman
Martin Waymire
+1 517 256 9166

Company Contacts:

Brooke Beebe
HSC VP for External Affairs
+1 989 301 5543

Greg Brabec
WACKER Director – Advocacy
+1 423 780 8334

Francine Sullivan
REC Silicon VP Business
+1 509 750 1133