Plastics ? I guess I don't know much about chip manufacturing. I was of the impression that Chipco and B&G were ceramic or a high end type of clay. Coors ceramics made most of the high voltage insulators and feed thru tubing when I working for Sloan Technology, they were the only one in this country that would custom make ceramic parts, and Yes they are part of Coors Brewing located in Golden Colorado. Quite a plant, I got to tour the plant back in the early eighties. If B&G and Chipco buy their blanks already made how do they get the RFID into the chip? I thought that they mold it in at the time they were pressed or molded. Guess I need to do more digging into how these things are made. Thanks Jim...