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Lonwin Industry Group Limited
Tianjin YR Chemspec Technology Co., Ltd.
Zibo Qingxin Chemicals Co., Ltd.
Xilong Scientific Co., Ltd.
Shanghai Sunwise Chemical Co., Ltd.
Tianjin Tiger International Trade Co., Ltd.
Perlong Medical Equipment Co., Ltd.
Xiamen Ditai Chemicals Co., Ltd.
Wuhan Kemi-Works Chemical Co., Ltd.
Sure Chemical Co., Ltd. Shijiazhuang
Hefei TNJ Chemical Industry Co., Ltd.