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Founded in 1999, Zhejiang Longyou East Anasac Crop Science Co., Ltd.  (formerly known as Zhejiang Longyou Dongfang Pesticide Factory) is a Sino-foreign joint venture. The company is mainly engaged in the R & D, production and sales of new green pesticide preparation products, and has formed three series of new high-efficiency, low-toxicity, low-residue pesticides with more than 20 varieties.