Copper Absorption Inhibitor, Vitamin C

Where is Vitamin C, Zinc, Arnica Montana Extract, Bromelain, Diosmin, Rutin, Citrus Biofl made?

1 company sell it under their own name. None of their labels names the factory.

Companies and their factories

Company on the labelFactoryWhereLast FDA inspection
PureTek Corporation8 ingredients · NDC 59088-003The label doesn't name the factory. Plants this company names for other drugs