Sam Dong America | Wherever there is energy there is Sam Dong Sam Dong, copper, metal, wire, round wire, rectangular wire, manufacture, producer, company, O.F.H.C., Oxygen Free High Conductivity Copper, C.T.C., Continuously Transposed Conductor, Enamelled, Paper Insulated, Special Insulated, Magnet Wire, Transformer Lead Cable We provide the highest quality magnet wire products and services, build positive relationships, promote healthy work environments, and develop energy products that will benefit all of society as a whole. Wherever there is energy there is Sam Dong.