One prominent 'banker' is Wen Kui Zheng.

ARRESTS
Chinese money launderers for mafiosi
October 5, 2023

Italian police on Wednesday arrested 33 people who were part of a crime network in which Chinese financial experts laundered millions of money for organized crime, mainly for the 'ndrangheta. Francesco Ruis, colonel of the tax investigation department, told the Reuters news agency that at least 50 million euros worth of money laundering transactions were discovered between 2020 and 2022, but that it is probably five times as much money.