Where can I find Particle in Oberriet?

Particle can also be found in these cities:

Abtwil SG Altstätten Appenzell Au Buchs Diepoldsau Goldach Heiden Rheineck Rorschach Sankt Margrethen St. Gallen Teufen Thal Widnau Wittenbach

You can also find this in Oberriet:

Rice Pudding Baking Powder Spelt Bread Nut Nougat Cream Balsamic Vinegar Pork Spice Blends Potato Products Rye Roll Canned Tomatoes