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Weishi was established in 2005, headquartered in Wuzhen, a beautiful Jiangnan water town. Weishi engaged in production oil soluble Vitamins （vitamin A, D3, E, K1 , etc.）into double-embedded microcapsuled powders. It has not only filled the blank of the products above in China at the beginning of its establishment, but also become the drafting unit of national food safety standards for vitamin A palmitate and vitamin E (DL - α - tocopherol).