The first part of the tire serial number has a code that will tell you who the manufacturer is and which plant it came from
Cooper has tire plants all over the world now. http://coopertire.com/about/facilities/ ... facilities. I believe most Yokohama tires are US made
Sometimes the Motomaster version appears first with the latest/ greatest features, then the Cooper branded version. This happened recently the Motomaster Winter Edge ( fall 2017) vs. Cooper Evolution Winter (fall 2018).