Palladium Chloride is classified under UN 3260 (Corrosive solid, acidic, inorganic). It must be packed in UN-approved packaging, typically vacuum-sealed plastic bags inside rigid plastic or fiber drums to prevent moisture absorption and leakage. When shipping to countries like the US or EU, ensure the HS Code (typically 2843.90) is correctly declared to avoid customs delays. Due to its high value, all-risk cargo insurance is non-negotiable, and using a freight forwarder experienced in Class 8 hazardous materials is highly recommended.