Recent Gravity Ventilation Projects
2007
- American Electric Power - Bridgman, Michigan
- Mittal Steel - Steelton, Pennsylvania
- Nucor Steel - Crawfordsville, Indiana
- Steel Dynamics - Columbia City, Indiana
- Steel Dynamics - Jeffersonville, Indiana
- Steel Dynamics - Pittsboro, Indiana
- Trace Die Cast - Bowling Green, Kentucky
- Tyler Pipe Company - Tyler, Texas
- Weyerhaeuser Company - Campti, Louisiana
- Wheelabrator - Tampa, Florida
2006
- Cabot Corporation - Waverly, West Virginia
- Century Aluminum - Hawesville, Kentucky
- Gerdau Ameristeel - Charlotte, North Carolina
- Gerdau AZA SA - **Santiago, Chile**
- Gypsum Storage - North Bend, Ohio
- IPSEN Ceramics - Pecatonica, Illinois
- Narjan Cement - **Saudi Arabia**
- Noranda Aluminum - New Madrid, Missouri
- Sohar Aluminum - **Sohar, Oman**
- Steel Dynamics - Butler, Indiana
- THERM-TEC - Waukesha, Wisconsin
2005
- Aluminum Bahrain Line 4 - **Manama, Bahrain**
- American Electric Power (AEP) - Cresam, West Virginia
- Century Aluminum - Hawesville, Kentucky
- Columbia Gas Transmission - Inverness, Mississippi
- Dakota Gasification - Buelah, North Dakota
- Exxon Mobil - Rio Blanco, Colorado
- Gerdau Ameristeel - Charlotte, North Carolina
- Gulf States Paper - Moundsville, Alabama
- Mississippi Power Company - Gulfport, Mississippi
- Noranda Aluminum - New Madrid, Missouri
- Nucor Steel - Hickman, Arkansas
- Nucor Steel - Crawfordsville, Indiana
- Steel Dynamics - Butler, Indiana
- Treat All Metals - Milwaukee, Wisconsin
- Weyerhauser - Valliant, Oklahoma
- Wheelabrator - Tampa, Florida
2004
- AK Steel - Ashland, Kentucky
- Aluminum Bahrain - **Manama, Bahrain**
- GKN Sinter Metals - Romulus, Michigan
- Louisiana-Pacific - Carthage, Texas
- Steel Dynamics - Butler, Indiana
- Wartsila Diesel - **St. Lucia, West Indies**
2003
- Aluminum Bahrain Line 5 - **Manama, Bahrain**
- El Paso Energy - Western United States
- GKN Sinter Metals - Romulus, Michigan
- Gulf South Pipeline - Belle Rosa, Louisiana
- Noranda Aluminum - New Madrid, Missouri
- Phillips Lighting Co. - Danville, Kentucky
- Steel Dynamics - Columbia City, Indiana
- Trace Die Cast - Bowling Green, Kentucky
- Williams Gas Pipeline - Western United States
2002
- Alberta Envirofuels - **Edmonton, Alberta**
- Century Aluminum - Hawesville, Kentucky
- El Paso Energy - Western United States
- Guardian Pipeline - Joilet, Illinois
- Kern River Pipeline - Western United States
- Lorain Tubular Company - Lorain, Ohio
- Steel Dynamics - Columbia City, Indiana
- Trace Die Cast - Bowling Green, Kentucky
- Westvaco Corporation - Wickliffe, Kentucky
- Williams Gas Pipeline - Western United States
- U.S. Army - Fort Gillem, Georgia
**International Projects