In recent years, more and more mobile phones and wearable devices and other IT products are equipped with wireless charging functions. In order to reflect the functional effects, the demand for thinning of such products has increased. Along with this trend, Inktec has developed a market. There is no ultra-thin, high-segment BT series black cover film. These new materials will lead the market in the future. They will be used in electric vehicles, smart appliances, drones, medical equipment, industrial robots, etc. The following table.