I found there distributor, I don't think they actually produce them but are a distribution center just like how Fleetguard does through Singapore. They are probably produced at the same plant as the Bosch filters in Malaysia.

Unicla International :: Oil Filter

You would have to cut one open to check the actual quality.

The current ones here look like this.



The older ones will have a string around the filter in the middle.



This has a lot of good shots of Purolators.

Test Pictures and Results - Oil Filtration Comparisons From the Workbench