Honeywell's Metropolis Works

The Metropolis Works Plant (MTW) is owned by Honeywell and operated by Honeywell’s Specialty Materials division which deals in a variety of high-performance materials, including nylon, polyethylene, fluorine and electronic materials.

Honeywell-MTW manufactures a number of fluorine products including:

• Uranium hexafluoride (UF6) for nuclear fuel
• Sulfur hexafluoride (SF6) for electric utilities
• Iodine pentafluoride (IF5) and antimony pentafluoride (SbF5) for stain and water resistance

Located in Metropolis, Illinois, Honeywell-MTW began operation in 1958 to satisfy a contract with the U.S. Atomic Energy Commission. Following completion of the contract, the facility was mothballed in 1964. The facility underwent rehabilitation in 1967 and has operated as a private converter since 1968.