Dunno, but Motorking had posted Fram & Champion Labs would still have a mutual aid arrangement after the Frampion breakup. Could be they have Champion Labs make some filters while Fram has equipment down for major maintenance. Or could be like Fram air filters with some models now permanently outsourced for manufacture (for example, the CA9401 & TGA9401 since 2015 - before the Frampion breakup).
“He who does not value the teacher, Or greatly care for the material, Is greatly deluded although he may be learned." - Lao-Tzu