What are the key logistics and regulatory hurdles in exporting aluminum chloride from China?

What are the key logistics and regulatory hurdles in exporting aluminum chloride from China?
Anhydrous aluminum chloride is classified as UN 1726, Class 8 corrosive dangerous goods, while hexahydrate falls under UN 3260. Export booking must be initiated about ten days ahead, longer than the seven days typical for general cargo. Required documentation includes an English MSDS, shipping order, and dangerous goods packaging certificate. For Shanghai port shipments, the cargo must enter the dangerous goods warehouse at Waigaoqiao or undergo direct loading at Yangshan, with strict timing for customs declaration. Packaging is tightly regulated: solids require steel drums of at least 0.5mm thickness with a maximum net weight of 100kg per drum, or combinations of plastic bags and steel drums. Many shipping lines refuse Class 8 corrosive cargo, so selecting carriers with appropriate acceptance policies is critical. Proper palletizing, lashing, and labeling decisions must be finalized before loading to avoid costly container unstuffing.