We are real manufacture from China. Our factory has been making EAS (EM) system for more than 9 years. We can provide you Certificate of Origin and Quality Inspection Certificate and CE Authentication Report. One of the antennas is made of ABS (Acrylonitrile-butadiene-styrene) and the body of the antenna is made by steel mold. The ABS material does not have any poisonous or contamination matter. We are able to provide you RoHS Report for the ABS material.