What customs declaration materials are needed for export customs declaration of liquid silicone?

What customs declaration materials are needed for export customs declaration of liquid silicone?
Basic commercial documents: including export contract, commercial invoice, packing list. The contract specifies the rights and obligations of the buyer and seller; the invoice lists the name, quantity, value and other information of the goods in detail; the packing list explains the packaging of the goods, the details of the items in each package, etc.
Transport documents: such as bills of lading or waybills, which are certificates for the transportation of goods, and specify the transportation route, carrier and other information of the goods.
Other required documents:
MSDS (Material Safety Data Sheet): Provides information such as the physical and chemical properties, hazardous characteristics, first aid measures, and protective measures of liquid silicone to confirm whether the product is a dangerous product.
Export license: If liquid silicone belongs to the range of products that require a license for export, it is necessary to apply in advance and obtain approval.
Commodity inspection certificate: Prepared according to the characteristics of the product and the requirements of the importing country, it proves that the product meets the relevant quality, safety, environmental protection and other standards. If it is ordinary liquid silicone, commodity inspection is generally not required, but if it is used in specific fields, such as food contact, medical, etc., corresponding commodity inspection may be required.