The commercial invoice is a list of all items being shipped (including exhibit booths) with their dimensions, weight, and value. For items that will be displayed and then re-exported, not sold, list the cost of manufacture, not the selling price.
The packing list itemizes the contents of each package. It must be totally accurate and specific. “Exhibit materials” or “meeting room supplies” won't do it. There is no official form for either the commercial invoice o