The problems largely stem from Chinese regulations requiring more export documents than competing nations, thus considerably lengthening the lead time for exporters working in the country.
"Prepare your shipment and understand your export documents," he advises.
Consignments of the devices were once stopped at the UK border before being exported and officials queried whether export documents were required.
The Brazilian government tried to address similar problems by requesting the help of inspectors from the United States Department of Agriculture, who verify export documents at their end.
In July, Spain successfully petitioned Britain to release copies of the export documents that Odyssey had filed when it flew the Black Swan treasure from Gibraltar to America.
In July, however, the Spanish government obtained copies of export documents filed by Odyssey in Gibraltar, which revealed that the recovered coins were Spanish.
And Belgium destroyed many of its export documents from the period, leaving large gaps in what should be a public record.
In contrast, official trade reports and export documents indicated that more than 490,000 tons of bluefin tuna were caught and traded over that period, a difference of 98,250 tons.
The export of such material is regulated by the federal government for national security reasons, but prosecutors alleged Mr. Fishenko — and several employees of his Houston company, Arc Electronics Inc. — falsified federal export documents and concealed the nature of their work, telling American suppliers that they were not exporters but traffic-light manufacturers.
In early November, the Times of London published an article about several Odyssey executives' stock sales, which added a new detail: on the export documents filed in Gibraltar the company had estimated the coins' worth at far less than five hundred million dollars.
