What are the key regulatory and logistics requirements for exporting ketoprofen from China?

What are the key regulatory and logistics requirements for exporting ketoprofen from China?
Ketoprofen (CAS 22071-15-4) is classified as UN2811, Class 6.1 toxic solid, organic, N.O.S., with packing groups I, II, and III. It is not listed in China's hazardous chemicals catalog, and the HS code 2918300090 has no customs supervision conditions, meaning no inspection certificate is required. However, ocean shipments of some Class 6.1 dangerous goods require alongside direct loading at the wharf. Limited quantities vary by packing group: 0 for PG I, 500 g for PG II, and 5 kg for PG III, with excepted quantities E5, E4, and E1. The substance is a white crystalline powder, odorless, freely soluble in methanol, soluble in ethanol, acetone, or ether, and practically insoluble in water. Proper dangerous goods documentation, including EmS F-A, S-A, and special provisions 274, 223, is essential for smooth export.