No idea who makes them, but I cut open an MO-090 filter and it looked pretty solid to me.
I recently inherited 4 Mopar Canada filters (same application, different part #) from my mother's husband when he scrapped his Caravan. Both filters were US made, but gave no clue who made them.
The only identifying mark I could find on the inside was on the ADBV, which was stamped "Parker".