The suspects, mostly Chinese migrants living in Italy, include four senior managers of the Chinese state bank's branch in Milan.
According to prosecutors, at least some of the suspects used Mafia-like techniques, including intimidation, the ANSA news agency reported yesterday.
The case highlights the large underground Chinese economy in Europe and the failure of judicial and legal cooperation to keep pace with the economic ties, both legal and illegal, that bind China with the West.
Prosecutors said more than USD 5.1 billion in proceeds from counterfeiting, prostitution, labor exploitation and tax evasion was sent to China in less than four years using a money-transfer service part-owned by Chinese migrants.
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Beijing, which is seeking Western help in hunting its own economic fugitives, did not cooperate with the investigation, Italian officials said. Once the money left Italy, it effectively vanished.
Italian police were unable to continue their investigation in China, but the AP was able to track some of the missing money to a large government-controlled import-export company that has been accused of repeatedly shipping counterfeit merchandise, some of it to the United States.
The Bank of China has denied wrongdoing, and lawyers for the money transfer network's owners have said their clients are not guilty.
Judicial cooperation has become crucial for Beijing, which is pressuring Western governments to help hunt corrupt officials who have fled overseas. President Xi Jinping's far-reaching anti-graft drive is a top priority for the ruling Communist Party as it seeks to shore up its legitimacy.