Mound Development Corp. sold the building to TWS Properties LLC in a transaction recorded last week, records say.
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Sams, of Franklin, registered TWS Properties with the state in March. Sams founded cabinet-maker The Woodworking Shop in 2001.
A message was left for Sams at The Woodworking Shop Wednesday morning.
The 300-plus-acre Mound complex began life as as federal research and development facility for nuclear weapons components.
The U.S. Department of Energy gradually shut the complex down beginning in the early 1990s. Today, it operates as a business park for businesses and organizations that value private, secure locations in durable structures.