I highly doubt that . FK does mfg. their own products/chemistry . I chemical plant may make it for them but not what I was told. Chemical plants such as
CG/Warner Chemical (same company I believe) make a lot of products. You would be surprised how many of these boutique products are made by the same mfg's or other mgr's . it would probably change your whole outlook on products. We have a chemical plant here and my X wife works at a chemical plant ( both specialize in automotive ) and products are usually mixed to customers spec's are chemist spec's and manufactured from there. Not a bad thing it is a speciality thing and cost a lot of money for manufacturing, hence the farming out of manufacturing as with many , many other products outside the wax/automotive industry. If the stuff works and you like it , who cares who mfg's it.
Also I've had the CG synthetic and have FK 425 , not the same thing IMO. Not even close to me.