Interferon beta

Where is Peginterferon Beta-1a 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
Biogen MA Inc. Plegridy, PlegridyPen63 ug per 0.5 mL / 94 ug per 0.5 mL, 125 ug per 0.5 mL · NDC 64406-015, 64406-011, 64406-017 +2The label doesn't name the factory. Plants this company names for other drugs