Unless it's changed recently, the AC Delco and Wix are both made by Hengst and are made in either Germany or the US (I've seen both). I think Purolator has been bought by Mann+Hummel, not sure if their filter is another relabeled Hengst or if they're making their own. The Fram and Valvoline filters I've seen have all been marked Made in China, and paying more for a Chinese filter than an OEM one is nuts.