Public companies and mixed-capital companies that operate in the competing market, subject to the provisions of Art. 173 of the Federal Constitution, shall receive the same treatment given to private legal entities of private law, under the terms of this Law. Sole paragraph. Public and mixed-capital companies, when they are carrying out public policies and within the scope of their execution, shall receive the same treatment given to the bodies and entities of the public authorities, under the terms of this Chapter.