Qualification certificates that must be possessed for mask export: 1: Enterprise business license (business scope related operation content). 2: Company production license (required for processing plants). 3: Product quality inspection report (self-inspection of the processing plant). 4: Medical equipment trademark registration certificate (not used for non-diagnostic and therapeutic-grade items). 5: Product manual (produced with the product), logo (produced with the product). 6: Product batch number (outer packaging box). 7: Product quality and safety report (produced with the product). 8: Photos of product samples and outer packaging boxes. 9: Trading companies must apply for registration at China Customs.