Most of the raw materials we use are originally produced In China. So far, we have built our own raw material bases such as Taxus base, Polygonum cuspidatum base, Sophora flavescens ait base, Pueraria base, Artemisia annual. base, and so on, through which sufficient quality raw materials are available through the year, thus stability of quality and quantity of raw materials are guaranteed, at the same time, a number of planting farmers have made a fortune.