Licensed items: production of hazardous chemicals; operation of hazardous chemicals; production of food additives; production of disinfectants (excluding hazardous chemicals); import and export of goods; import and export agency; mobile pressure vessel/gas cylinder filling (subject to approval according to law) Business activities can only be carried out after approval by relevant departments. Specific business projects are subject to the approval results) General items: sales of food additives; sales of disinfectants (excluding hazardous chemicals); manufacturing of lime and gypsum; sales of lime and gypsum; production of chemical products (excluding licensed chemical products); sales of chemical products (excluding licensed chemical products) ); manufacturing of daily chemical products; environmental consulting services; technical services, technology development, technical consultation, technology exchange, technology transfer, and technology promotion (except for projects that require approval according to law, business activities can be carried out independently with a business license in accordance with the law)