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Honghe Senju Biology Co., Ltd (HHSJ). is the largest manufacturer of pyrethrum in China. It specializes in growing, processing, exploitation and research of natural pyrethrum as a natural insecticide. It has established 6000 hectares of large-scale growing of pyrethrum in Luxi County, Yunnan of China where is quite ideal for pyrethrum growing. Advanced Supercritical Technology of CO2 is used for pyrethrum extraction. With the ideal climate and based on advanced technology, and especially research stuffs, we are able to produce 2500 tons of dried flowers and 50 tons of natural pyrethrum extract per year. We have developed a series of high quality pyrethrum-based products ranging from raw materials, intermediates and final insecticidal products