... (Qing Hao) and in researching and marketing of Artemisinin and its derivatives.Our products as followed :ARTEMISININ,DIHYDROARTEMISININ,ARTEMETHER,ARTESUNATE,QUININE SULPHATE ... (Qing Hao) and in researching and marketing of Artemisinin and its derivatives.Our products as followed :ARTEMISININ,DIHYDROARTEMISININ,ARTEMETHER,ARTESUNATE,QUININE SULPHATE ...