Zhejiang Zhongning Silicon Industry Co., Ltd., established on 2007-12-21, Business scope includes sodium aluminum hydride,Silicon tetrafluoride,77%dilute sulfuric acid,83%dilute sulfuric acid,Silane,hydrogen(natural gas system,Contains high-purity hydrogen)Production(With valid<safety production license>operate);Hazardous Chemicals Management(Operating without storage)(See the specific product name for details<Hazardous Chemical Business License>,Operate with a valid license);Polysilicon manufacturing and sales;Crystalline silicon,sodium sulfate,Aluminum sulfate,Calcium sulfate,calcium fluoride,Sodium Aluminum Tetrafluoride Sales;Technology development related to polysilicon,Research,Transfer and Consulting Services;road freight transport;Import and export of goods and technology(law,Except where restricted by law,Those who should obtain a license operate with a license);silicon wafer,Solar cells and components,Solar power system and off-grid power station,Grid-connected power station control equipment manufacturing and related technology development,technology research,technology transfer,Technical Advisory Services.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)