Given the substantially identical business, substantive control, and anti-union sentiment evinced, substantial evidence for Board's finding that diversion of part of production to a building out back supervised by the CEO's daughter was in fact a corporate alter ego.
https://www.cadc.uscourts.gov/internet/opinions.nsf/122F0282A1444FB7852582AD0054EF86/$file/16-1303.pdf
Since 2011. An occasional commonplacing of the U.S. Circuit Courts of Appeal.
Neither an authoritative statement of the law nor legal advice. Quick work.