Not suprising. Next it will be North Korea.
I have Bosch Oil Filters. On the box it has See Product For Country of Origin. When you look on the Filter the Country of Origin is not there!
However, having cut the Bosch, Mahle and Mann Oil Filters apart they are all about the same inside so there is no visual quality issues.

__________________
84 300D, 82 Volvo 244Gl Diesel