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September 5, 2012, HX was authorized the invention patent “Vitamin D2 Oil and Preparation” from the State Intellectual Property Office, with Patent No: ZL201110130201.X. So far, Our Company has been authorized 4 invention patents, other three patents are: “Preparation of Photochemical Synthesis Vitamin D2” with Patent No: ZL200410040904.3, “Preparation of Water Soluble Vitamin” with Patent No: ZL200410040903.9, and “Preparation of Ergosterol” with Patent No.: ZL200410040905.8.