Mississippi Silicon Burnsville
Large load · 80 CR 210, Burnsville, MS
Mississippi Silicon operates a silicon metal plant at Burnsville in Tishomingo County, Mississippi, with two submerged-arc electric furnaces supplied by SMS Siemag and a combined capacity of 36,000 metric tons a year. The Tennessee Valley Authority is its electricity provider. The company says it was the first domestic raw silicon metal plant built in 40 years and supplies about 10% of the silicon metal used in the United States. Neither the company nor TVA has published the furnaces' electrical demand.
Overview
The 170,000-square-foot plant has two submerged-arc furnaces designed and installed by SMS Siemag with a total capacity of 36,000 metric tons a year. SMS also supplied the electrode columns, material handling, hydraulic systems and electrical and automation systems. The furnaces have rotating shells to reduce cold spots in the melt and to prevent carbide deposits on the furnace walls. Silicon metal is refined from ore in electric arc furnaces to a purity of 95% or greater. The supplier's 2014 announcement gave a slightly lower combined capacity of 33,000 tons a year.
Profile
- Ownership and market position
- Mississippi Silicon is a joint venture of the Vicintin family, Brazilian investors who control The Rima Group, and CleanTech LLC, a private-equity investment group. The $200 million project broke ground in January 2014 and held its grand opening in 2015. In April 2025 the company, based in Burnsville, joined Ferroglobe USA in filing a petition for trade investigations into silicon metal imports from five countries.
Facility
- Activity
- Silicon metal produced in two submerged-arc electric furnaces
- Industry
- Manufacturing
- Site type
- Facility
- Operating status
- Operating
Related records
Timeline
- Jan 15, 2014
- Groundbreaking for the $200 million Burnsville silicon metal plant
MS: Mississippi Silicon Breaks Ground on $200M, 200-Job Mfg. Facility | Trade and Industry Development
- Apr 24, 2025
- Mississippi Silicon and Ferroglobe USA petitioned for trade investigations into silicon metal imports
Mississippi company files petition for trade investigation over silicon metal imports | starherald.net • The Star-Herald • Kosciusko, Mississippi