Permitted items: hazardous chemicals business. (Projects subject to approval in accordance with the law can only be carried out after approval by the relevant departments, the specific business projects are subject to the approval documents or licenses of the relevant departments) General projects: new material technology research and development; Biological chemical product technology research and development: chemical product production (excluding licensed chemical products) [branch operation] : special chemical product manufacturing (excluding hazardous chemicals) [branch operation] : chemical product sales (excluding licensed chemical products): New material technology promotion services: special chemical product sales (excluding hazardous chemicals): synthetic material sales: technical services Technology development, technology consultation, technology exchange, technology transfer, technology dissemination; Experimental analysis instrument sales: instrument sales; Sales of Categ