Silicon Production Facilities

REC Silicon is a leading global player in the production of high purity silicon materials, with over 30 years of silane gas and polysilicon manufacturing experience.

At two U.S. based manufacturing facilties, REC Silicon produces solar grade polysilicon at our Moses Lake, WA facility, and electronic grade polysilicon and silicon gas at our Butte, MT facility. These products are raw materials for the international solar and electronic industries such as solar panels, smart devices, flat panel displays, laptops, and even hybrid electric vehicles.


Advancing silicon materials

REC Silicon’s trademarked Signature Silane™ gas (SiH4) and advanced operational techniques enable production of the highest purity silicon materials in the world.

Our engagement in traditional Siemens manufacturing practices, while also manufacturing from an efficient Fluidized Bed Reactor (FBR) technology for granular polysilicon, allows us to achieve low manufacturing costs. Increased capacity and production growth, coupled with proprietary technologies, ISO certification and strategic supplier relationships, help customers – both direct and downstream – set their next wave of innovation in motion. 

Connect with our sales team to discuss which products are right for your needs.

A collage of images showcasing the different materials REC Silicon works with.

Moses Lake, WA, USA

REC Silicon is one of Grant County, Washington's largest private employers.

Originally constructed in 1984, the Moses Lake manufacturing facility has grown in capacity from one silane unit and one Siemens technology production line to three silane units and home to one of the largest granular polysilicon production plants in the world.


Products dedicated to solar market:

Moses Lake, WA, USA

Operations dedicated to the electronics market.

With safety always at the forefront, REC Silicon continuously pursues reduced operational costs while improving product value and environmental footprint.

Sustainability is not only integral to the way REC Silicon does business, but how it acknowledges responsibility to stakeholders and the communities where they are deeply rooted. More information about this can be found in the Sustainability Sections of the Annual Reports.

Butte, MT, USA

REC Silicon is the world's largest supplier of Silane Gas and other Speciality Gases

Commissioned in 1998, this plant is the world’s largest supplier of Silane Gas (SiH4) and other Specialty Gases for semiconductor, flat panel display, glass, and solar applications. It is also owns the largest ISO silane gas module fleet in the industry, and employs nearly 300 Silver Bow County residents.


  • Silane gas
  • Siemens


  • Polysilicon: Float Zone (FZ), Electronic Grade
  • Polysilicon
  • Silane gas

For more information about the Butte, Silver Bow and greater Silver Bow County community, please go to Butte-Silver Bow Chamber of Commerce and Butte Local Development Corporation. Also, to read more on Butte area schools, go to Butte School District. 

REC Silicon

More Information

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